Dianxun Xiao

Dianxun Xiao

McMaster University

H-index: 18

North America-Canada

About Dianxun Xiao

Dianxun Xiao, With an exceptional h-index of 18 and a recent h-index of 18 (since 2020), a distinguished researcher at McMaster University, specializes in the field of Transportation Electrification, Electrical Motor Drive, High-power Converter, Battery Management System.

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

Selective Harmonic Elimination and Dynamic Enhancement in Magnetic-Characteristic-Free Sensorless Control of SRM Drives at High Speeds

Model Predictive Control of Five-Level Open-End Winding PMSM Drives

Research on the Application of Dual Three-Phase PMSM in Renewable Energy System

A Novel Two-Mode Inverter Based Open-Winding PMSM Drive and Its Modulation Strategies

Fault-Tolerant Control of Open-Circuit Faults in Standard PMSM Drives Considering Torque Ripple and Copper Loss

Parameter Estimation for Permanent Magnet Synchronous Motors Based on the Improved Genetic Algorithm

Optimization-Based Parameter Estimation for PMSMs Under Unified Observable Conditions

A universal model predictive control strategy for dual inverters fed OW-PMSM drives

Dianxun Xiao Information

University

McMaster University

Position

Ph.D candidate

Citations(all)

1066

Citations(since 2020)

1034

Cited By

162

hIndex(all)

18

hIndex(since 2020)

18

i10Index(all)

25

i10Index(since 2020)

25

Email

University Profile Page

McMaster University

Dianxun Xiao Skills & Research Interests

Transportation Electrification

Electrical Motor Drive

High-power Converter

Battery Management System

Top articles of Dianxun Xiao

Selective Harmonic Elimination and Dynamic Enhancement in Magnetic-Characteristic-Free Sensorless Control of SRM Drives at High Speeds

Authors

Zifeng Chen,Hao Jing,Xinghao Wang,Dehui Luo,Xueqing Wang,Gaoliang Fang,Hang Zhao,Dianxun Xiao

Journal

IEEE Transactions on Power Electronics

Published Date

2024/2/8

To address the issues of magnetic parameter dependence and insufficient dynamic performance in high-speed sensorless control of Switched Reluctance Motors (SRMs), this paper proposes a sensorless control scheme based on the Delayed Signal Cancellation Flux Observer (DSCFO) for high-speed SRM drives. This scheme improves the dynamic performance while achieving sensorless control, without the need for magnetic characteristics. Due to the superior filtering efficiency of the DSCFO, the proposed observer eliminates the non-linear terms in the calculated single-phase flux linkage and extracts a pair of orthogonal signals with positional information. Following this, the rotor position and speed information are estimated through the Phase Locked Loop (PLL), enabling sensorless control. Finally, experiments are conducted on a three-phase 5.5 kW 12/8 SRM experimental setup to verify the effectiveness of …

Model Predictive Control of Five-Level Open-End Winding PMSM Drives

Authors

Yancheng Chen,Xueqing Wang,Dianxun Xiao,Donghui Ma,Xiaobao Yang,Zheng Wang

Journal

IEEE Transactions on Transportation Electrification

Published Date

2024/3/27

In this paper, two FCS-MPC strategies based on deadbeat control are proposed for the five-level OW-PMSM drive at the DC-link voltage ratio of 3:1. The space vector diagram of the OW-PMSM drive is divided into 16 subsectors in each sector and the specific subsector is selected according to the reference voltage vector obtained from deadbeat control. In this way, the traversal calculation burden can be greatly relieved with only 2 or 3 candidate vectors. Besides, in view of different optimization objectives, namely high power quality and low switching frequency, the MPC candidate vector selection of five-level vector distribution is designed based on whether the virtual vectors are considered. Finally, the effectiveness and superiority of the proposed FCS-MPC strategies for five-level OW-PMSM drives are verified through experimental comparisons.

Research on the Application of Dual Three-Phase PMSM in Renewable Energy System

Authors

Jianwei Shen,Xueqing Wang,Zifan Zhang,Shaowei Ren,Donghui Ma,Dianxun Xiao

Published Date

2023/11/5

This paper presents the applications of dual three-phase PMSM (DTP-PMSM) in renewable energy system. First, DTP-PMSM can be applied in the microgrid system as a generator or load between energy storage and grid. In this way, transmission efficiency between machine and energy storage can be improved. Second, DTP-PMSM can be applied in flywheel energy storage system for renewable energy generation. In both applications, DTP-PMSM can guarantee flexible isolated energy transformation between two energy interfaces with different rated voltages. Besides, the power fluctuations in the two applications can be eliminated with the respective energy storages devices.

A Novel Two-Mode Inverter Based Open-Winding PMSM Drive and Its Modulation Strategies

Authors

Tao Xu,Xueqing Wang,Dianxun Xiao,Xin Meng,Yao Mao,Zheng Wang

Journal

IEEE Transactions on Power Electronics

Published Date

2023/4/14

A novel two-mode inverter-based open-winding permanent magnet synchronous motor drive is proposed in this article. The proposed drive operates in hybrid-inverter mode at low and medium speed to achieve high power quality. The common dc-bus mode is adopted at high speed to fulfill a wider speed range than hybrid-inverter mode. Based on the proposed drive, a modulation strategy for any voltage ratio is proposed, which integrates the instantaneous floating capacitor (FC) voltage into modulation to synthesize the reference voltage vector. The proposed modulation strategy can not only guarantee the FC voltage regulation but also start the drive when the FC voltage is zero and switch the mode of the drive smoothly. Besides, the excellent fault-tolerant capability of the proposed drive is studied under open-phase and switch faults. In the proposed fault-tolerant control, a sinusoidal zero-sequence current is …

Fault-Tolerant Control of Open-Circuit Faults in Standard PMSM Drives Considering Torque Ripple and Copper Loss

Authors

Xueqing Wang,Shaowei Ren,Dianxun Xiao,Xin Meng,Gaoliang Fang,Zheng Wang

Journal

IEEE Transactions on Transportation Electrification

Published Date

2023/8/18

Although many auxiliary circuits based fault-tolerant solutions have been developed for three-phase motor drives, the standard three-phase motor drive without any auxiliary circuits still dominates the market. It is important to improve the fault-tolerant capability of standard motor drive. In this paper, a predictive current control based fault-tolerant control scheme is proposed to optimize the fault-tolerant performance of standard PMSM drives under open-phase fault and open-switch fault. In the proposed scheme for open-phase fault, the fault-tolerant current references considering reluctance torque and overcurrent endurance of motor drive are derived. On this basis, the fault-tolerant current references are further optimized to reduce the copper loss without increasing the torque ripple. Besides, a fundamental period based speed calculation method is proposed to eliminate the negative impact of speed fluctuation. In the …

Parameter Estimation for Permanent Magnet Synchronous Motors Based on the Improved Genetic Algorithm

Authors

Xinghao Wang,Hao Jing,Zifeng Chen,Dehui Luo,Shuo Zhang,Xueqing Wang,Dianxun Xiao

Published Date

2023/11/5

The accurate electrical parameters of permanent magnet synchronous motors (PMSMs) are significant for the control system design in various industrial applications. PMSMs parameter estimation is difficult due to the model’s nonlinearity. Thus, this paper proposed a novel improved genetic algorithm (IGA) to estimate PMSM’s electrical parameters including resistance, inductance, and flux linkage. A local random search algorithm (LRSA) is employed for IGA to increase the population diversity and obtain the global optimal point. In addition, the inverter nonlinear caused by the dead time is compensated for the accurate sample data. Finally, the feasibility of the proposed parameter estimation method is verified by experiments. The results indicate that the proposed IGA has high estimation accuracy and high searching ability.

Optimization-Based Parameter Estimation for PMSMs Under Unified Observable Conditions

Authors

Xinhao Wang,Hao Jing,Zifeng Chen,Xueqing Wang,Lefei Ge,Hang Zhao,Dianxun Xiao

Journal

IEEE Transactions on Power Electronics

Published Date

2023/11/28

Parameter estimation of permanent magnet synchronous motors (PMSMs) is broadly researched, while the parameter observability has not been well-discussed. This article employs the local weak observability theory to obtain unified observable conditions and give a definite reference for parameter estimation. Based on the results, a novel machine parameter estimation algorithm based on convex optimization is proposed to verify these conditions. This scheme establishes an integrated cost function and solves it by the numerical method to estimate parameters. Then, with the proposed approach, several parameters are obtained together by one estimator, which avoids multiple observer designs and reduces the system's complexity. Moreover, convergency analyses of the cost function demonstrate that the states of PMSMs are locally weakly observable at the unified conditions. Finally, the stability of the …

A universal model predictive control strategy for dual inverters fed OW-PMSM drives

Authors

Yancheng Chen,Xueqing Wang,Xin Meng,Mingzhi He,Dianxun Xiao,Zheng Wang

Journal

IEEE Transactions on Power Electronics

Published Date

2023/3/22

This article proposed a universal model predictive control (MPC) strategy for dual inverters fed open-winding permanent magnet synchronous motor drives where two isolated buses have arbitrary dc voltages. Diverse and unordered space vector distribution caused by different voltage ratios of dc buses that greatly increase the calculation burden for the conventional MPC algorithm is analyzed in detail. Based on this, a novel MPC strategy that is universally applicable to any voltage ratio is put forward, which could decrease the number of candidate vectors from 49 to less than 15 in every cycle. Although the computational burden is reduced, the output power quality is unaffected owing to the effective simplification of the vectors. Besides, an optimized switching algorithm is designed to adapt to the situation when the voltage ratio changes during the operation state. The experimental results are presented to verify the …

A composite model predictive control method of SRMs with PWM-based signal for torque ripple suppression

Authors

Lefei Ge,Jixuan Guo,Shuai Mao,Dianxun Xiao,Dongdong Zhao,Shoujun Song,Rik W De Doncker

Journal

IEEE Transactions on Transportation Electrification

Published Date

2023/8/7

In this article, a novel composite predictive control using PWM control signals is proposed for the torque ripple suppression of the switched reluctance machine (sRm). A PWm modulation method for the asymmetric half-bridge (AHB) converter is introduced to achieve the conversion of the duty cycle to control signals. In the single-phase region, the deadbeat predictive control (DPC) is employed to predict the optimal duty cycle for the conduction phase. The model predictive control (MPC) using PWM control signals predicts the optimal duty cycles for the incoming phase and the outgoing phase in the commutation region. Latin-hypercube sampling (LHS) design is applied to obtain the appropriate duty cycle prediction scheme according to the machine operation state. The response surface model (RSM) is proposed to replace the cost function for achieving online optimization. The performance of the proposed …

General-Purpose High-Speed Position-Sensorless Control of Switched Reluctance Motors Using Single-Phase Adaptive Observer

Authors

Zifeng Chen,Hao Jing,Xinghao Wang,Xueqing Wang,Gaoliang Fang,Hang Zhao,Dianxun Xiao

Journal

IEEE Transactions on Transportation Electrification

Published Date

2023/11/1

The paper proposes a general-purpose full-position estimation strategy for switched reluctance motors (SRMs) in high-speed operation using a single-phase adaptive observer (SPAO). The proposed approach does not need pre-stored flux linkage characteristics of SRMs for the full range position estimation, thereby avoiding offline magnetic parameter measurement. The SPAO has excellent adaptive band-pass characteristics, which can effectively suppress flux bias and harmonics from the real-time single-phase stator flux. Therefore, the nonlinear SRM flux linkage can be decomposed into a pair of position orthogonally sine-cosine signal that is independent of motor parameters. Then, the speed and position of the SRM can be estimated from the orthogonal signals through the single-phase phase locked loop (PLL). In particular, the position estimation offset caused by the discontinuous SRM conduction is …

A Novel Approach to High-Speed Sensorless Control of Switched Reluctance Motor Using Fourth Order Generalized Integrator Without Magnetic Characteristics

Authors

Zifeng Chen,Hao Jing,Xinghao Wang,Zaixin Song,Dianxun Xiao

Published Date

2023/11/5

The high-speed sensorless control of the switched reluctance motors (SRMs) is achieved by pre-storing flux linkage characteristic parameters. However, creating an accurate table of nonlinear flux linkage characteristics necessitates time-consuming offline measurements. Additionally, this approach burdens the system and consumes a significant amount of memory. To address the issue, a high-speed position sensorless control scheme without magnetic characteristic parameters is proposed using Fourth Order Generalized Integrator (FOGI). Without requiring pre-stored flux linkage characteristics, this method accurately estimates real-time position information. The proposed FOGI effectively extracts the fundamental flux linkage, eliminates DC bias and harmonics from the calculated flux linkage, and separates the highly nonlinear flux linkage into two position quadrature signals. Furthermore, the high-order …

Model predictive torque and force control for switched reluctance machines based on online optimal sharing function

Authors

Lefei Ge,Zizhen Fan,Nan Du,Jiale Huang,Dianxun Xiao,Shoujun Song

Journal

IEEE Transactions on Power Electronics

Published Date

2023/7/14

Although the torque and radial force ripples are two important causes of unwelcomed vibration in switched reluctance machines, the suppression of these ripples is usually contradictory. To address this issue, we propose a model predictive torque and force control (MPT&FC) method. First, the torque and force sharing functions are constructed based on the flux-linkage curve, following which the sharing functions are optimized online by tuning the turn- on angle to minimize the torque and force ripple. Finally, the MPT&FC method is applied to complete the sharing function tracking control. For balanced control of the torque and radial force, we optimize the candidate-voltage-vector table. Experiments were done on a three-phase 12/8 switched reluctance machine to verify that the proposed method suppresses vibrations.

Synchronous Optimal Pulse-width Modulation for High-Power AC Motor Drives: A Review

Authors

Aathira Karuvaril Vijayan,Dianxun Xiao,Babak Nahid-Mobarakeh,Ali Emadi

Published Date

2023/10/23

Electric vehicles require high-power machines, so reducing power loss becomes crucial. Compared to space vector modulation, synchronous optimal pulse width modulation (SOP) has several advantages in high-speed applications, like the capability to operate at a very low switching frequency with lower total harmonic distortion, and reduced losses. This article presents a comprehensive review after performing a systematic investigation on different inverter topologies, including two-level voltage source inverters and multilevel inverter topologies with SOP as the modulation scheme. Several optimal pulsewidth methods will be studied along with SOP design methods, including steady state and dynamic switching. More emphasis is given to the various challenges faced in implementing SOP, followed by future trends.

Maximum Efficiency Per Ampere Control of Synchronous Reluctance Motor Sensorless Drives

Authors

Chengrui Li,Jiaxiao Shi,Lu Wang,Dianxun Xiao,Gaolin Wang,Dianguo Xu

Published Date

2023/11/5

The maximum efficiency per ampere (MEPA) control strategy stands out as a highly effective means of improving the efficiency of a synchronous reluctance motor (SynRM) drive. This paper introduces an improved approach to optimizing efficiency that treats the motor and inverter as a unified system, ensuring maximum efficiency throughout operation. Diverging from conventional or maximum torque per ampere control methods, this approach accounts for both iron losses and inverter losses, while also addressing cross-coupling effects. This is achieved through real-time virtual signal injection, which extracts optimal operation points, and an accurate analytical approach to assess iron losses. Experimental results convincingly validate the effectiveness of this novel methodology.

Gradient Boosting Decision Tree for Rotor Temperature Estimation in Permanent Magnet Synchronous Motors

Authors

Hao Jing,Zifeng Chen,Xinghao Wang,Xueqing Wang,Lefei Ge,Gaoliang Fang,Dianxun Xiao

Journal

IEEE Transactions on Power Electronics

Published Date

2023/7/3

The increasing power density of permanent magnet synchronous motors has led to a severe motor heating problem that demands precise rotor temperature information to avoid demagnetization. Traditional temperature estimation techniques rely on thermal models that require specialized knowledge in motor design, thermodynamics, and material science. However, thermal parameters are often hard to obtain in real applications and contain significant mismatches when the working environment of motors varies. To overcome this challenge, this letter proposes an ensemble data-driven approach using the gradient boosting decision tree (GBDT) to estimate the temperature of the permanent magnet. The proposed scheme uses the temperature data at the stator tooth, winding, and yoke to predict the rotor temperature. The GBDT technique offers advantages in terms of accuracy and versatility due to its strong …

Robust State of Charge Estimation for Battery with Self-Adaptive Super Twisting Sliding Mode Observer

Authors

Shuo Zhang,Xinghao Wang,Chengrui Li,Dianxun Xiao

Published Date

2023/10/16

In recent years, the development of Lithium-ion battery technology has promoted the utilization of battery management systems (BMS). In the BMS, developing a reliable state of charge (SOC) estimation method is essential for managing and controlling batteries. Most of the research in this area has focused on the design of model-based observers. This paper proposes the self-adaptive super twisting sliding mode observer (SASTSMO) and improved particle swarm optimization (IPSO) algorithm to estimate SOC, which could effectively suppress the system chattering. The SASTSMO can estimate total disturbances in battery model without chattering issues and then compensate them to enhance the accuracy of SOC. Furthermore, the adaptive algorithm can adjust the gain of the observer according to the error automatically, which improves the robustness of the algorithm. Finally, the feasibility of the proposed method …

Research on the Application of Open-End Winding PMSM in Renewable Energy System

Authors

Zifan Zhang,Xueqing Wang,Jianwei Shen,Shaowei Ren,Donghui Ma,Dianxun Xiao

Published Date

2023/11/5

This paper studies the application of open-end winding permanent-magnet synchronous machine (OW-PMSM) in renewable energy system. By adjusting the weight of the voltage references of dual inverters in OW-PMSM drive, flexible power flow between microgrid and energy storage is achieved. In this case, the PMSM can be a load motor or a generator. In another application case, OW-PMSM can be adopted in flywheel energy storage system (FESS) for renewable generation. Flexible power delivery is fulfilled among machine, power generation device and grid through the control of OWPMSM. In both the two applications, the impact of fluctuating renewable generation on grid stability can be eliminated by fully utilizing the OW-PMSM.

Online switching strategy between dual three-phase PMSM and open-winding PMSM

Authors

Jianwei Shen,Xueqing Wang,Dianxun Xiao,Zheng Wang,Yao Mao,Mingzhi He

Journal

IEEE Transactions on Transportation Electrification

Published Date

2023/6/27

To make full use of the advantages of dual three-phase PMSM (DTP-PMSM) and three-phase open-winding PMSM (OW-PMSM), this paper proposed a novel typology of motor drive which can switch between dual three-phase (DTP) structure and three-phase open-winding (OW) structure online. On this basis, the basic control and fault-tolerant control are studied to explore the superiority of the proposed typology. Under healthy conditions, no adjustment is required for the modulation method of the proposed control scheme when switching between DTP mode and OW mode. By using two bidirectional thyristors, smooth switching between the two modes can be guaranteed. Besides, the power weight of two inverters can be adjusted by changing the current ratio in DTP mode and changing the voltage ratio in OW mode. For the fault-tolerant control, when an open-phase fault occurs, DTP mode will be used to provide …

A Novel 3-D Space Vector Modulation Strategy for Open-End Winding PMSM

Authors

Zifan Zhang,Xueqing Wang,Dianxun Xiao,Yu Zhou,Mingzhi He,Zheng Wang

Journal

IEEE Transactions on Industrial Electronics

Published Date

2023/9/29

To fully suppress the current harmonics of torque plane and zero-sequence dimension in open-end winding (OW) permanent-magnet synchronous motor (PMSM), a novel 3-D space vector pulsewidth modulation (SVPWM) strategy is proposed in this article. First, the distribution of 3-D space vectors is analyzed. Then, a subspace-based vector selection method is developed to utilize the adjacent vectors in space to synthesize the reference vector. On this basis, a repetitive controller is equipped for zero-sequence current to guarantee precise current tracking. By using the proposed 3D-SVPWM strategy, the current controls in 3D can be well balanced. Besides, the fault-tolerant control of open-phase fault in OW PMSM drive is realized with the proposed 3D-SVPWM strategy by simply changing zero-sequence current reference. The experiments are carried out to prove the effectiveness of the proposed strategy.

Comparative study on pulse pattern optimization for high-speed permanent magnet synchronous motors

Authors

Aathira Karuvaril Vijayan,Dianxun Xiao,Battur Batkhishig,Alan Dorneles Callegaro,Rohit Baranwal,Ali Emadi

Published Date

2022/6/15

Optimal pulse patterns (OPPs) have many advantages for permanent magnet synchronous motor (PMSM) drives, such as low switching frequency, and low current harmonic distortion at medium to high speeds. Selective harmonic mitigation is an effective approach to generate optimal switching pulse patterns by minimizing the entire harmonic content instead of eliminating individual harmonics. A proper offline optimization method is required for selective harmonic mitigation to maximize the power utilization of PMSMs. This paper discusses two optimization techniques: 1) genetic algorithm (GA) and 2) FMINCON solver for obtaining the OPPs for a two-level inverter. Both the methods are studied with different pulse number to calculate the optimal switching angles that can provide less total harmonic distortion (THD) of phase currents. Comparative simulations are performed to validate the effectiveness of the …

See List of Professors in Dianxun Xiao University(McMaster University)

Dianxun Xiao FAQs

What is Dianxun Xiao's h-index at McMaster University?

The h-index of Dianxun Xiao has been 18 since 2020 and 18 in total.

What are Dianxun Xiao's top articles?

The articles with the titles of

Selective Harmonic Elimination and Dynamic Enhancement in Magnetic-Characteristic-Free Sensorless Control of SRM Drives at High Speeds

Model Predictive Control of Five-Level Open-End Winding PMSM Drives

Research on the Application of Dual Three-Phase PMSM in Renewable Energy System

A Novel Two-Mode Inverter Based Open-Winding PMSM Drive and Its Modulation Strategies

Fault-Tolerant Control of Open-Circuit Faults in Standard PMSM Drives Considering Torque Ripple and Copper Loss

Parameter Estimation for Permanent Magnet Synchronous Motors Based on the Improved Genetic Algorithm

Optimization-Based Parameter Estimation for PMSMs Under Unified Observable Conditions

A universal model predictive control strategy for dual inverters fed OW-PMSM drives

...

are the top articles of Dianxun Xiao at McMaster University.

What are Dianxun Xiao's research interests?

The research interests of Dianxun Xiao are: Transportation Electrification, Electrical Motor Drive, High-power Converter, Battery Management System

What is Dianxun Xiao's total number of citations?

Dianxun Xiao has 1,066 citations in total.

What are the co-authors of Dianxun Xiao?

The co-authors of Dianxun Xiao are Ali Emadi, Dianguo XU, Babak Nahid-Mobarakeh, Mehdi Narimani, Jin Ye.

    Co-Authors

    H-index: 95
    Ali Emadi

    Ali Emadi

    McMaster University

    H-index: 78
    Dianguo XU

    Dianguo XU

    Harbin Institute of Technology

    H-index: 45
    Babak Nahid-Mobarakeh

    Babak Nahid-Mobarakeh

    McMaster University

    H-index: 34
    Mehdi Narimani

    Mehdi Narimani

    McMaster University

    H-index: 28
    Jin Ye

    Jin Ye

    University of Georgia

    academic-engine

    Useful Links