Yu Jin

Yu Jin

Harbin Institute of Technology

H-index: 10

Asia-China

About Yu Jin

Yu Jin, With an exceptional h-index of 10 and a recent h-index of 10 (since 2020), a distinguished researcher at Harbin Institute of Technology, specializes in the field of Multilevel converters, Battery energy storage system, FACTs.

His recent articles reflect a diverse array of research interests and contributions to the field:

A simplified control parameter optimisation method of the hybrid modular multilevel converter in the medium‐voltage DC distribution network for improved stability under a weak …

A Two-Step Modulated Model Predictive Control Scheme for the MMC-Based Battery Energy Storage System with SOH Balancing Ability

Review of fault diagnosis and fault-tolerant control methods of the modular multilevel converter under submodule failure

Third Harmonic Circulating Current Generation Mechanism in Delta-CHB STATCOM

Multiphase Converter Voltage Optimization With Minimum Effort Principle

Submodule Capacitance Monitoring Approach for the MMC With Asymptotically Converged Error

An improved energy management for MVDC distribution system based on exponential droop control

Novel modular multilevel converter-based five-terminal MV/LV hybrid AC/DC microgrids with improved operation capability under unbalanced power distribution

Yu Jin Information

University

Harbin Institute of Technology

Position

___

Citations(all)

368

Citations(since 2020)

366

Cited By

52

hIndex(all)

10

hIndex(since 2020)

10

i10Index(all)

10

i10Index(since 2020)

10

Email

University Profile Page

Harbin Institute of Technology

Yu Jin Skills & Research Interests

Multilevel converters

Battery energy storage system

FACTs

Top articles of Yu Jin

A simplified control parameter optimisation method of the hybrid modular multilevel converter in the medium‐voltage DC distribution network for improved stability under a weak …

Authors

Jin Xu,Qian Xiao,Hongjie Jia,Yunfei Mu,Yu Jin,Wenbiao Lu,Shiqian Ma

Journal

IET Energy Systems Integration

Published Date

2024

To improve the stability of the hybrid modular multilevel converter (MMC), a simplified dominant mode‐based control parameter optimisation method of the hybrid MMC system is proposed. Firstly, in the medium‐voltage DC distribution network, the small‐signal model of the hybrid MMC is established. Secondly, the influence of a weak AC system on stability is analysed through eigenvalue analysis. Finally, a simplified objective function is designed for eigenvalues of the dominant mode by considering only real parts, and improved small‐signal stability can be achieved by control parameters optimisation. The proposed method optimises all control parameters at the same time, which further reduces the number of algorithm iterations. Simulation results show that by the proposed control parameter optimisation method, the hybrid MMC has better transient performance and reduced disturbance under SCR variation …

A Two-Step Modulated Model Predictive Control Scheme for the MMC-Based Battery Energy Storage System with SOH Balancing Ability

Authors

Haolin Yu,Yunfei Mu,Shiqi Guo,Qian Xiao,Wenhua Li,Hongjie Jia,Yu Jin,Fayou Yan

Published Date

2023/6/16

To improve the dynamic performance and reduce the computational burden, a two-step modulated model predictive control scheme is proposed for the modular multilevel converter (MMC)-based battery energy storage system (BESS). For the first step, the output current is predicted under different output voltage levels and two optimal control options are selected. On this basis, the duty cycle of each control option is calculated according to their predicted output current errors. For the second step, the output level of the upper arm increases or decreases by one for a certain interval within one sampling period, and the output level of the lower arm changes in the opposite for the same interval. By symmetrically arranging the variations at the midpoint of each sampling period, the circulating current can be regulated without influencing the output current. In addition, a state of health (SOH) balancing strategy is integrated …

Review of fault diagnosis and fault-tolerant control methods of the modular multilevel converter under submodule failure

Authors

Qian Xiao,Yu Jin,Hongjie Jia,Yi Tang,Allan Fagner Cupertino,Yunfei Mu,Remus Teodorescu,Frede Blaabjerg,Josep Pou

Journal

IEEE Transactions on Power Electronics

Published Date

2023/6/6

Modular multilevel converters (MMCs) have attracted extensive research interests in various ac and dc conversion applications due to their modular structure and excellent harmonic performance. However, the large number of power switches increases the potential risk of submodule (SM) failure, which greatly challenges the safe and reliable operation of the MMC. This article presents a detailed review of fault diagnosis and fault-tolerant control methods of the MMC under SM failures. On this basis, comprehensive comparisons are conducted among different fault diagnosis methods, and verification results are provided to analyze the advantages and disadvantages of the popular fault-tolerant control methods. Finally, the review is concluded, and future trends and research opportunities are discussed.

Third Harmonic Circulating Current Generation Mechanism in Delta-CHB STATCOM

Authors

João Victor Guimarães França,Dayane Do Carmo Mendonça,Heverton Augusto Pereira,Yu Jin,Qian Xiao,Allan Fagner Cupertino

Published Date

2023/11/26

Static synchronous compensators (STATCOMs) are increasingly present in the power system scenario. The Delta-connected Cascaded H-bridge (Delta-CHB) is a widespread option for medium-and high-voltage STATCOM systems. However, the non-negligible second-harmonic ripple in the capacitor voltages directly affects the submodule voltages and, consequently, leads to an inherent third harmonic circulating current, which can increase power losses. This paper analytically describes this phenomenon and proposes a simple strategy based on a proportional resonant controller in the circulating current loop. So far, the strategy has been validated through both simulation and experimental results. The proposed model presents an error of 1.6% between the calculated and simulated circulating current amplitude. The proposed mitigation strategy provides a reduction in the circulating current ripple by 95.45% in …

Multiphase Converter Voltage Optimization With Minimum Effort Principle

Authors

Qian Xiao,Yu Jin,Josep Pou,Hongjie Jia,Yunfei Mu,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

Published Date

2023/7/1

A large number of control options and steady-state tracking errors are two main challenges for model predictive control in the modular multilevel converter (MMC). To solve these issues, each arm of the three-phase MMC is considered as a whole, and a space-vector-equalized predictive current control scheme is proposed for the three-phase MMC in this article. First, eight equalized space vectors are involved, and only six nonzero vectors are evaluated in each period. As a result, the number of evaluated control options can be significantly reduced. Then, two optimal vectors are selected, and their dwell times are calculated based on the predicted output currents of the MMC. Furthermore, the compensation terms are designed and added to the dwell times so that the steady-state performance can be improved by the proposed scheme. Experimental results show that the proposed scheme provides fast dynamic …

Submodule Capacitance Monitoring Approach for the MMC With Asymptotically Converged Error

Authors

Qian Xiao,Huai Wang,Yu Jin,Hongjie Jia,Yunfei Mu,Jiebei Zhu,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE Transactions on Industrial Electronics

Published Date

2023/6/26

To reduce noise interferences and improve the steady-state estimation accuracy of submodule (SM) capacitors, a novel SM capacitance monitoring approach has been proposed for the modular multilevel converter in this article. First, the fundamental frequency (FF) component is analyzed to be dominant of the capacitor voltage squared. Then, based on the energy equation W = Cv 2 /2, half of the FF capacitor voltage squared is selected as the input variable, and the FF capacitor energy calculated by power integral is selected as the feedback component. By proper design of the estimation law, closed-loop capacitance monitoring can be achieved with reduced noise interference. Furthermore, based on the Lyapunov stability criterion, the estimation parameter is designed so that the estimation error asymptotically converges to zero. Compared with the conventional methods, the proposed approach is easy to …

An improved energy management for MVDC distribution system based on exponential droop control

Authors

Wenbiao Lu,Qian Xiao,Hongjie Jia,Yunfei Mu,Mingjian Cui,Yu Jin,Tianxiang Li,Yuwei Zhang,Xiaodan Yu

Journal

Frontiers in Energy Research

Published Date

2022/9/1

The energy management optimization and DC voltage stability are the main challenges when loads surging and renewable energy sources (RESs) fluctuations occur in the medium-voltage DC distribution system (MVDC-DS). To solve these issues, this paper proposes a dual-time scale energy management method based on improved droop control for the MVDC-DS. Firstly, a ±10kV three-terminal hybrid modular multilevel converter (MMC)-based ring MVDC-DS with DC fault ride-through capability is constructed, which including electric vehicle charging stations, energy storage stations, multiple loads and RESs. Secondly, the droop control adopted by the hybrid MMC is improved by exp-function to achieve higher power quality. On this basis, a dual-time scale energy management method is proposed to minimize the electricity purchasing cost. The reference powers of each controllable unit are optimized in the long time-scale, and the parameters of improved droop control are optimized in the short time-scale. Finally, a case study is conducted on the ±10kV three-terminal hybrid MMC-based ring MVDC-DS, and the results indicate that the proposed method can improve the economy and power quality of system, and the exp-droop control can maintain the normal system operation under different conditions.

Novel modular multilevel converter-based five-terminal MV/LV hybrid AC/DC microgrids with improved operation capability under unbalanced power distribution

Authors

Qian Xiao,Yunfei Mu,Hongjie Jia,Yu Jin,Xiaodan Yu,Remus Teodorescu,Josep M Guerrero

Journal

Applied Energy

Published Date

2022/1/15

Conventionally, the multilevel converter-based multi-terminal hybrid microgrids require a large number of power switches and have a limited operation capability under unbalanced power distribution in medium and low voltage (MV/LV) AC/DC microgrids. To solve this issue, this paper proposes the novel modular multilevel converter (MMC)-based five-terminal MV/LV hybrid AC/DC microgrids. The proposed hybrid microgrids realize the interconnection between the medium-voltage AC (MVAC), MVDC, low voltage AC (LVAC), and two LVDC terminals. In addition, the MVAC grid is connected to the AC terminal of MMC, and the MVDC microgrid is connected to the DC terminal of MMC through a dual active bridge (DAB) converter. Based on MMC, the compact interlinking converters are established, providing three LVDC terminals, which are connected to two LVDC microgrids and one LVAC microgrid through a DC …

Space-vector-equalized predictive current control scheme for the modular multilevel converter with improved steady-state performance

Authors

Qian Xiao,Yu Jin,Josep Pou,Hongjie Jia,Yunfei Mu,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE transactions on industrial electronics

Published Date

2022/8/30

A large number of control options and steady-state tracking errors are two main challenges for model predictive control in the modular multilevel converter (MMC). To solve these issues, each arm of the three-phase MMC is considered as a whole, and a space-vector-equalized predictive current control scheme is proposed for the three-phase MMC in this article. First, eight equalized space vectors are involved, and only six nonzero vectors are evaluated in each period. As a result, the number of evaluated control options can be significantly reduced. Then, two optimal vectors are selected, and their dwell times are calculated based on the predicted output currents of the MMC. Furthermore, the compensation terms are designed and added to the dwell times so that the steady-state performance can be improved by the proposed scheme. Experimental results show that the proposed scheme provides fast dynamic …

Improved LightGBM-based framework for electric vehicle lithium-ion battery remaining useful life prediction using multi health indicators

Authors

Huiqiao Liu,Qian Xiao,Yu Jin,Yunfei Mu,Jinhao Meng,Tianyu Zhang,Hongjie Jia,Remus Teodorescu

Journal

Symmetry

Published Date

2022/8/1

To improve the prediction accuracy and prediction speed of battery remaining useful life (RUL), this paper proposes an improved light gradient boosting machine (LightGBM)-based framework. Firstly, the features from the electrochemical impedance spectroscopy (EIS) and incremental capacity-differential voltage (IC-DV) curve are extracted, and the open circuit voltage and temperature are measured; then, those are regarded as multi HIs to improve the prediction accuracy. Secondly, to adaptively adjust to multi HIs and improve prediction speed, the loss function of the LightGBM model is improved by the adaptive loss. The adaptive loss is utilized to adjust the loss function form and limit the saturation value for the first-order derivative of the loss function so that the improved LightGBM can achieve an adaptive adjustment to multiple HIs (ohmic resistance, charge transfer resistance, solid electrolyte interface (SEI) film resistance, Warburg resistance, loss of conductivity, loss of active material, loss of lithium ion, isobaric voltage drop time, and surface average temperature) and limit the impact of error on the gradient. The model parameters are optimized by the hyperparameter optimization method, which can avoid the lower training efficiency caused by manual parameter adjustment and obtain the optimal prediction performance. Finally, the proposed framework is validated by the database from the battery aging and performance testing experimental system. Compared with traditional prediction methods, GBDT (1.893%, 4.324 s), 1D-CNN (1.308%, 47.381 s), SVR (1.510%, 80.333 s), RF (1.476%, 852.075 s), and XGBoost (1.119%, 24.912 s), the …

Additional Charge Throughput Reduction Method Based on Circulating Current Injection for the MMC Battery Energy Storage System

Authors

Haolin Yu,Qian Xiao,Yu Jin,Yunfei Mu,Shiqian Ma,Hongjie Jia

Published Date

2022/12/3

The battery packs experience alternate current in the modular multilevel converter battery energy storage system (MMC-BESS), which can cause additional charge throughput and shorten the lifetime of the battery. Therefore, an additional charge throughput reduction method has been proposed for the MMC-BESS based on the second-order circulating current injection. Firstly, the principle of the MMC-BESS is introduced. Then, the additional charge throughput is analyzed by the instantaneous power fluctuation in the arms of the MMC-BESS. Afterwards, a second-order circulating current is injected to adjust the power in the arms of the MMC-BESS. As a result, the additional charge and discharge of the battery packs can be reduced in each fundamental cycle. Finally, comparative experiments are conducted and the results show that compared with the conventional methods, the proposed method can effectively …

A novel detection and localization approach of open-circuit switch fault for the grid-connected modular multilevel converter

Authors

Yu Jin,Qian Xiao,Hongjie Jia,Yanchao Ji,Tomislav Dragičević,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE Transactions on Industrial Electronics

Published Date

2022/3/1

The open-circuit fault detection and localization (FDL) technique can improve the reliability of the modular multilevel converter (MMC). However, the conventional software-based FDL methods usually have a heavy computation burden or a limited localization speed. This article proposes a simplified and fast software-based FDL approach for the grid-connected MMC. First, the errors between the measured state variables (the output current and the circulating current) and their estimated values are calculated. By comparing these errors with their threshold values, the switch fault can not only be detected but also be localized to the specific arm. Then, the capacitor voltages in this faulty arm are collected, and the submodule (SM) with the highest capacitor voltage is selected. To confirm the switch fault in this SM, a modified Pauta criterion is presented to check the abnormal voltage data. As a result, the computation …

Dual-layer modulated model predictive control scheme for the cascaded h-bridge converter

Authors

Qian Xiao,Hongjie Jia,Yi Tang,Yu Jin,Yunfei Mu,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE Transactions on Industrial Electronics

Published Date

2022/12/1

To simultaneously achieve fast dynamics and fixed switching frequency, a dual-layer modulated model predictive control scheme is proposed for the cascaded H-bridge converter in this article. For the output current control layer, first, each phase cluster is considered as a whole, and only six nonzero vectors are evaluated for output current prediction. Then, two optimal vectors are selected, and their dwell times are calculated based on the current prediction results. As a result, fast output current dynamics can be obtained with a greatly reduced number of evaluated control options. For the cluster voltage balancing control layer, instead of fundamental-frequency zero-sequence voltage (ZSV), the adaptive ZSV is injected according to the predicted cluster voltage differences. As a result, the active power flows are adjusted in each control period, and the cluster voltage balancing speed can be significantly improved. By …

Decoupled control scheme for THD reduction and one specific harmonic elimination in the modular multilevel converter

Authors

Qian Xiao,Shunfeng Yang,Yu Jin,Hongjie Jia,Josep Pou,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE Transactions on Industrial Electronics

Published Date

2022/3/1

This article proposes a decoupled control scheme for the modular multilevel converter (MMC) to reduce the total harmonic distortion (THD) and eliminate one specific harmonic. First, to realize the decoupled control between the ac and dc paths of the MMC, an improved nearest level control (INLC) method is proposed. It applies the round function to generate the ac output voltage levels, instead of the arm output voltage levels. Thus, a staircase wave is generated by the INLC method. Then, by adding an additional pulse to each quarter of the staircase wave, one specific harmonic can be eliminated without optimizing each conduction angle. Furthermore, a decoupled circulating current fuzzy control method is proposed to suppress the second-order harmonic and balance the arm energy. By this decoupled control structure, the output voltage and the circulating current can be controlled independently. Taking the fifth …

Simplified Carrier-Based Space Vector Modulation Scheme for the Modular Multilevel Converter

Authors

Weiliang Wang,Qian Xiao,Huiqiao Liu,Yu Jin,Yunfei Mu,Hongjie Jia

Published Date

2022/10/28

To improve the dc voltage utilization rate, this paper proposes a simplified carrier-based space vector modulation (SVM) scheme for the modular multilevel converter (MMC). Firstly, by considering each arm as a whole, only eight space vectors are evaluated in each control period. As a result, the vector selection and dwell time calculation process can be simplified. Then, by flexible selection of extra zero vectors in the MMC, the common-mode voltage (CMV) can be suppressed. Finally, phase-shifted carriers are applied to generate multilevel output voltage waveforms. Experimental results show that the proposed SVM scheme can be achieved with suppressed CMV under different modulation indexes, even in overmodulation conditions.

A novel fault-tolerant operation approach for the modular multilevel converter-based STATCOM with the enhanced operation capability

Authors

Yu Jin,Qian Xiao,Josep Pou,Hongjie Jia,Yanchao Ji,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE Journal of Emerging and Selected Topics in Power Electronics

Published Date

2022/2/15

The operation capability of the modular multilevel converter (MMC)-based static synchronous compensator (STATCOM) is limited under submodule (SM) failures. When running in the STATCOM mode, the floating dc-link voltage of the MMC is adjustable. Therefore, this article proposes a novel fault-tolerant operation approach to enhance the operation capability of the MMC under severe SM failures. First, the dc-link voltage is dynamically regulated under SM failures, where the capacitor voltages of all SMs are slightly increased. The modulation ranges of the faulty and healthy phases can be enlarged, and the even voltage stress distribution can be realized. Then, a low-magnitude fundamental frequency zero-sequence voltage (FF-ZSV) is injected to balance the line-to-line voltages. Finally, the virtual energy idea is proposed, where the capacitor voltages of faulty SMs are considered to be clamped at the reference …

Modular multilevel converter based multi-terminal hybrid AC/DC microgrid with improved energy control method

Authors

Qian Xiao,Yunfei Mu,Hongjie Jia,Yu Jin,Kai Hou,Xiaodan Yu,Remus Teodorescu,Josep M Guerrero

Journal

Applied Energy

Published Date

2021/1/15

With the large-scale integration of the distribution generations (DGs) and the increasing medium-voltage and low-voltage DC power demands, multi-terminal hybrid AC/DC microgrid has drawn great attention from researchers around the world. In order to reduce the number of power conversion stages and meet DC transmission demands under different DC voltage levels, this paper proposes a four-terminal interconnection scheme of the hybrid AC/DC microgrid, connecting one medium-voltage AC (MVAC) terminal, one medium-voltage DC (MVDC) terminal and two low-voltage DC (LVDC) terminals. The proposed interconnection scheme includes a modular multilevel converter (MMC) as the main interlinking converter of the MVAC grid and MVDC microgrid, and a series of dual active bridges (DAB) converters as two isolated LV DC microgrid interfaces. It has more flexibility for power supplies, especially MVDC …

A capacitor overvoltage elimination strategy for reduced-voltage-sensor-based MMC

Authors

Ruizhi He,Yu Jin,Weiyang Hou,Derong Luo,Shoudao Huang

Journal

International Journal of Electrical Power & Energy Systems

Published Date

2021/11/1

As modular multilevel converter(MMC) requires a large number of sensors to measure capacitor voltages, reducing the number of sensors for MMC has become an emerging topic. One of the technical challenges for reduced-voltage-sensor-based MMC operated with NLM is to eliminate the overvoltage that occurred on submodules. In order to solve this problem, a capacitor overvoltage elimination strategy for reduced-voltage-sensor-based MMC is proposed in this paper. The overvoltage elimination is consists of pre-measurement and in-process measurement of capacitor voltage, which is to obtain the actual value of submodule capacitor voltage so that to sort submodule capacitor voltages in the correct sequence. In this way, the submodules with excessively high voltage or with overvoltage trends can be selected for discharging until their voltages reach the normal level. Therefore, the overvoltage that occurred …

A novel sliding-discrete-control-set modulated model predictive control for modular multilevel converter

Authors

Yu Jin,Qian Xiao,Hongjie Jia,Yunfei Mu,Yanchao Ji,Tomislav Dragičević,Remus Teodorescu,Frede Blaabjerg

Journal

IEEE access

Published Date

2021/1/8

Model predictive control (MPC) method has been recognized as one of the most promising technologies for the modular multilevel converter (MMC) due to the fast dynamic response and its simple realization. However, conventional finite control set (FCS) MPC methods for MMC are facing some challenges, such as high computation burden, poor steady-state performance, dependence on weighting factors, and variable switching frequency. In order to solve these problems, a novel sliding-discrete-control-set (SDCS) modulated MPC (MMPC) is proposed for MMC in this paper. Based on the adaptive search step in the output current control, only three control sets are evaluated in each period. In addition, the independent circulating current controller is applied in the proposed MMPC method. With the circulating current controller, the circulating currents are well regulated, and the arm capacitor voltage balancing is …

An Improved Master-Slave Control Strategy for Medium Voltage DC Distribution System

Authors

Qian Xiao,Wenbiao Lu,Yu Jin,Huiqiao Liu,Yunfei Mu,Xiaodan Yu,Hongjie Jia

Published Date

2021/10/22

The voltage fluctuation and unreasonable power distribution caused by multi-mode switching affect the stability of DC distribution system operation. To solve these problems, this paper improves the traditional control strategy of the system. Firstly, the operations of the ring DC distribution system are categorized into different working modes. Then, this paper analyzes the disadvantages of the traditional control strategies and improves it. The proposed control method endows the converter stations of all terminals with the ability of DC voltage and power regulation. Finally, the three-terminal ring DC distribution system is established, and the operating characteristics of the system applying the improved control are improved.

See List of Professors in Yu Jin University(Harbin Institute of Technology)

Yu Jin FAQs

What is Yu Jin's h-index at Harbin Institute of Technology?

The h-index of Yu Jin has been 10 since 2020 and 10 in total.

What are Yu Jin's top articles?

The articles with the titles of

A simplified control parameter optimisation method of the hybrid modular multilevel converter in the medium‐voltage DC distribution network for improved stability under a weak …

A Two-Step Modulated Model Predictive Control Scheme for the MMC-Based Battery Energy Storage System with SOH Balancing Ability

Review of fault diagnosis and fault-tolerant control methods of the modular multilevel converter under submodule failure

Third Harmonic Circulating Current Generation Mechanism in Delta-CHB STATCOM

Multiphase Converter Voltage Optimization With Minimum Effort Principle

Submodule Capacitance Monitoring Approach for the MMC With Asymptotically Converged Error

An improved energy management for MVDC distribution system based on exponential droop control

Novel modular multilevel converter-based five-terminal MV/LV hybrid AC/DC microgrids with improved operation capability under unbalanced power distribution

...

are the top articles of Yu Jin at Harbin Institute of Technology.

What are Yu Jin's research interests?

The research interests of Yu Jin are: Multilevel converters, Battery energy storage system, FACTs

What is Yu Jin's total number of citations?

Yu Jin has 368 citations in total.

What are the co-authors of Yu Jin?

The co-authors of Yu Jin are Frede Blaabjerg, Josep M. Guerrero, Remus Teodorescu, Tomislav Dragičević, Josep Pou, Hongjie Jia.

    Co-Authors

    H-index: 197
    Frede Blaabjerg

    Frede Blaabjerg

    Aalborg Universitet

    H-index: 147
    Josep M. Guerrero

    Josep M. Guerrero

    Aalborg Universitet

    H-index: 104
    Remus Teodorescu

    Remus Teodorescu

    Aalborg Universitet

    H-index: 72
    Tomislav Dragičević

    Tomislav Dragičević

    Danmarks Tekniske Universitet

    H-index: 67
    Josep Pou

    Josep Pou

    Nanyang Technological University

    H-index: 62
    Hongjie Jia

    Hongjie Jia

    Tianjin University

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