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学者姓名：周扬忠
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Abstract ：
Space vector pulsewidth modulation (SVPWM) has good dc-link voltage utilization, but the determination of location of reference voltage vector and nearest three vectors will be complex in modular multi converter (MMC). This paper presents a novel SVPWM scheme with submodule capacitor voltage balance for MMC. The proposed method provides a general a determination of position for reference voltage vector and simplifies the computation without complicated trigonometric function. Finally, Simulation results demonstrate its validity. © 2024 IEEE.
Keyword ：
Capacitor bank Capacitor bank Capacitors Capacitors Vectors Vectors Vector spaces Vector spaces
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| GB/T 7714 | Song, Fei , Zhou, Yangzhong . A Novel SVPWM Scheme for Modular Multi Converter with Submodule Capacitor Voltage Balance [C] . 2024 : 634-639 . |
| MLA | Song, Fei 等. "A Novel SVPWM Scheme for Modular Multi Converter with Submodule Capacitor Voltage Balance" . (2024) : 634-639 . |
| APA | Song, Fei , Zhou, Yangzhong . A Novel SVPWM Scheme for Modular Multi Converter with Submodule Capacitor Voltage Balance . (2024) : 634-639 . |
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The strong coupling of suspension force and torque in a single-winding bearingless flux-switching permanent magnet motor creates a complex dynamic model, complicating controller parameter tuning. The complexity and large data requirements of intelligent algorithms highlight the continued relevance of PID control, which remains dominant in high integration and low-cost applications. Consequently, research on tuning PID controllers is crucial. This paper proposes a controller parameter optimization strategy based on characteristic models. Initially, the principles governing the generation of controllable suspension force and unbalanced magnetic pull during motor operation are analyzed, leading to the development of corresponding mechanistic models. Notably, a spatially asymmetric rotor dynamic eccentricity modulation operator is introduced to accurately represent the establishment of unbalanced magnetic pull. The rotor dynamic model is then simplified, and a characteristic model for the system is established. To enhance controller parameter tuning, an online algorithm for optimization is proposed, which involves iteratively adjusting the controller parameters over a specified period, guided by the output error between the characteristic model and the actual system. This approach facilitates the determination of optimal controller parameters. Finally, experimental studies are conducted on the prototype, validating the effectiveness of the proposed method. © 2013 IEEE.
Keyword ：
Parameter Optimization Parameter Optimization Rotor Dynamic Eccentricity Rotor Dynamic Eccentricity Single-Winding Bearingless Flux-Switching Permanent Magnet Motor Single-Winding Bearingless Flux-Switching Permanent Magnet Motor Unbalanced Magnetic Pull Unbalanced Magnetic Pull
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| GB/T 7714 | Chen, Y. , Zheng, H. , Zhou, Y. et al. Controller Parameter Optimization Strategy based on Characteristic Model for Single-Winding Bearingless Flux-Switching Permanent Magnet Motor [J]. | IEEE Journal of Emerging and Selected Topics in Power Electronics , 2024 . |
| MLA | Chen, Y. et al. "Controller Parameter Optimization Strategy based on Characteristic Model for Single-Winding Bearingless Flux-Switching Permanent Magnet Motor" . | IEEE Journal of Emerging and Selected Topics in Power Electronics (2024) . |
| APA | Chen, Y. , Zheng, H. , Zhou, Y. , Zhang, C. , Liao, W. . Controller Parameter Optimization Strategy based on Characteristic Model for Single-Winding Bearingless Flux-Switching Permanent Magnet Motor . | IEEE Journal of Emerging and Selected Topics in Power Electronics , 2024 . |
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Abstract ：
The three-level multi-phase drive system combines the advantages of multi-phase motors and three-level inverters. However, midpoint voltage imbalance and excessive zero-sequence current exist. Midpoint voltage imbalance can lead to output voltage distortion, while excessive zero-sequence current can cause distortion of the stator current and increased losses. Direct torque control (DTC) requires minimal dependence on motor parameters, with a simple algorithm and strong adaptability to load changes. However, research based on DTC theory is still relatively rare. The symmetrical six-phase permanent magnet synchronous motor (PMSM) has high efficiency, a fast response rate among multi-phase motors, and superior fault tolerance. Therefore, this paper proposes a DTC strategy for a symmetrical six-phase PMSM powered by a T-type three-level inverter to balance midpoint voltage and suppress zero-sequence current. Firstly, by using a spatial vector projection method to remove the redundant switching states in the switching state, the switching states are reduced from 729 to 189. Secondly, based on the three-phase PMSM-DTC structure powered by the two-level inverter, the scheme synthesizes four voltage vectors to meet the control requirements on the six-phase axis using the simplified switching state. In addition, by combining flux linkage and torque hysteresis comparator with simple sector division, the axis of the optimal voltage vector is determined, and the midpoint voltage and zero-sequence current control plane are constructed. The sector where the system is located in the control plane is judged. According to the polarity of the winding phase current iy of the optimal voltage vector, the optimal voltage vector selection is realized, and the optimal switch vector table of DTC is further constructed. Steady-state comparative experiments are conducted. Compared to the traditional approach, the proposed method maintains a balanced midpoint voltage, effectively suppresses zero-sequence current to approximately 0 A, and significantly sinusoidalize phase current. Steady-state running experiments are conducted at different speeds and loads to investigate the steady-state performance of the motor. The results show that zero-sequence current is effectively suppressed to approximately 0 A, and the midpoint voltage remains balanced. Speed step and sudden load change experiments are performed to validate the dynamic performance of the motor. The results demonstrate that the zero-sequence current can still be well controlled around 0 A, even during speed steps and sudden load changes. Although the midpoint voltage may fluctuate slightly, it can be quickly adjusted to a balanced state. The following conclusions can be drawn. This paper proposes a DTC strategy for a symmetrical six-phase PMSM powered by a T-type three-level inverter, addressing the control of |ψs| and Te, midpoint voltage balance, and zero-sequence current suppression. © 2024 China Machine Press. All rights reserved.
Keyword ：
direct torque control direct torque control midpoint voltage balance midpoint voltage balance six-phase permanent magnet synchronous motor six-phase permanent magnet synchronous motor T-type three-level inverter T-type three-level inverter zero sequence current suppression zero sequence current suppression
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| GB/T 7714 | Huang, D. , Zhou, Y. , Qu, A. et al. Six-Phase PMSM-DTC Control with Midpoint Voltage Balance and Zero-Sequence Current Suppression Powered by T-Type Three-Level Inverter; [具有中点电压平衡与零序电流抑制的T 型三电平逆变器供电六相 PMSM-DTC] [J]. | Transactions of China Electrotechnical Society , 2024 , 39 (20) : 6371-6385 . |
| MLA | Huang, D. et al. "Six-Phase PMSM-DTC Control with Midpoint Voltage Balance and Zero-Sequence Current Suppression Powered by T-Type Three-Level Inverter; [具有中点电压平衡与零序电流抑制的T 型三电平逆变器供电六相 PMSM-DTC]" . | Transactions of China Electrotechnical Society 39 . 20 (2024) : 6371-6385 . |
| APA | Huang, D. , Zhou, Y. , Qu, A. , Yu, C. . Six-Phase PMSM-DTC Control with Midpoint Voltage Balance and Zero-Sequence Current Suppression Powered by T-Type Three-Level Inverter; [具有中点电压平衡与零序电流抑制的T 型三电平逆变器供电六相 PMSM-DTC] . | Transactions of China Electrotechnical Society , 2024 , 39 (20) , 6371-6385 . |
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Abstract ：
针对永磁同步直线电机(permanent magnet synchronous linear motor,PMSLM)机械参数辨识中存在模型不准确、辨识参数耦合、辨识精度低等问题,该文提出一种基于传动模型重构的机械参数辨识算法.首先,根据重构模型建立扩张状态观测器得到动子质量和摩擦力、电磁推力、质量辨识初值的耦合信息;其次,为消除这种耦合,提出一种两级式的动子质量解耦辨识策略.再次,根据PMSLM的摩擦特性,构造一种综合考虑速度和加速度影响的摩擦力模型,更精确地描述真实摩擦力.最后,搭建基于机械参数辨识算法的控制系统,通过仿真和实验验证,证明所提辨识算法的有效性.
Keyword ：
扩张状态观测 扩张状态观测 拓展卡尔曼滤波 拓展卡尔曼滤波 摩擦力模型 摩擦力模型 机械参数辨识 机械参数辨识 永磁同步直线电机 永磁同步直线电机 解耦 解耦
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| GB/T 7714 | 鲍明堃 , 周扬忠 , 钟天云 . 基于传动模型重构的永磁同步直线电机机械参数辨识 [J]. | 中国电机工程学报 , 2024 , 44 (4) : 1597-1607,中插29 . |
| MLA | 鲍明堃 et al. "基于传动模型重构的永磁同步直线电机机械参数辨识" . | 中国电机工程学报 44 . 4 (2024) : 1597-1607,中插29 . |
| APA | 鲍明堃 , 周扬忠 , 钟天云 . 基于传动模型重构的永磁同步直线电机机械参数辨识 . | 中国电机工程学报 , 2024 , 44 (4) , 1597-1607,中插29 . |
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Abstract ：
Aiming at the problems of inaccurate model, coupling of identification parameters, and low identification accuracy in the identification of permanent magnet synchronous linear motor (PMSLM) mechanical parameters, a mechanical parameter identification algorithm based on transmission model reconstruction was proposed in this paper. First, an extended state observer was established based on the reconstruction model to obtain the coupling information of the mover mass and friction force, electromagnetic thrust and initial value of mass identification. Secondly, in order to eliminate this coupling, a two-stage mover mass decoupling identification strategy was proposed. Thirdly, according to the friction characteristics of PMSLM, a friction force model that comprehensively considers the effects of velocity and acceleration was constructed to describe the real friction force more accurately. Finally, a control system based on the mechanical parameter identification algorithm was built, and the effectiveness of the identification algorithm proposed in this paper is proved by simulation and experimental verification. ©2024 Chin.Soc.for Elec.Eng. 1597.
Keyword ：
Acceleration Acceleration Extended Kalman filters Extended Kalman filters Friction Friction Linear motors Linear motors Parameter estimation Parameter estimation Permanent magnets Permanent magnets
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| GB/T 7714 | Bao, Mingkun , Zhou, Yangzhong , Zhong, Tianyun . Mechanical Parameter Identification of Permanent Magnet Synchronous Linear Motor Based on Transmission Model Reconstruction [J]. | Proceedings of the Chinese Society of Electrical Engineering , 2024 , 44 (4) : 1597-1607 . |
| MLA | Bao, Mingkun et al. "Mechanical Parameter Identification of Permanent Magnet Synchronous Linear Motor Based on Transmission Model Reconstruction" . | Proceedings of the Chinese Society of Electrical Engineering 44 . 4 (2024) : 1597-1607 . |
| APA | Bao, Mingkun , Zhou, Yangzhong , Zhong, Tianyun . Mechanical Parameter Identification of Permanent Magnet Synchronous Linear Motor Based on Transmission Model Reconstruction . | Proceedings of the Chinese Society of Electrical Engineering , 2024 , 44 (4) , 1597-1607 . |
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Abstract ：
针对永磁同步直线伺服电机（PMSLM）传统位移控制算法中控制器系数固定带来的控制精度不足等问题，提出一种基于复合神经网络重构对象的PMSLM变参数型位移速度并行控制策略。首先，利用动子位移、线速度的误差信息设计变参数并行控制器；其次，建立含有控制对象多维信息的复合径向基神经网络观测动子位移，并得到控制对象的偏导信息；再次，基于闭环稳定条件，以周期检索的误差与控制目标的比较结果为基础，构建完整的位移速度并行控制器参数更新策略；最后，实验结果表明，该文所提控制策略能实现不同给定位移的高精度控制，且具有控制不同对象参数的泛用性。
Keyword ：
变参数 变参数 复合径向基神经网络 复合径向基神经网络 并行控制 并行控制 更新机制 更新机制 永磁同步直线电机 永磁同步直线电机
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| GB/T 7714 | 鲍明堃 , 周扬忠 . 基于复合神经网络重构对象的永磁同步直线电机变参数型位移速度并行控制 [J]. | 电工技术学报 , 2024 , 39 (08) : 2470-2484 . |
| MLA | 鲍明堃 et al. "基于复合神经网络重构对象的永磁同步直线电机变参数型位移速度并行控制" . | 电工技术学报 39 . 08 (2024) : 2470-2484 . |
| APA | 鲍明堃 , 周扬忠 . 基于复合神经网络重构对象的永磁同步直线电机变参数型位移速度并行控制 . | 电工技术学报 , 2024 , 39 (08) , 2470-2484 . |
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在三电平六相电机驱动系统中,存在中点电压不平衡及零序电流导致定子电流畸变等问题.为此,该文针对T型三电平逆变器供电的六相永磁同步电机,提出一种具有中点电压平衡与零序电流抑制功能的直接转矩控制(DTC)策略.为实现DTC的快速构建,该策略基于两电平三相电机DTC结构,利用精简后的开关状态,在六相绕组轴线上分别合成满足控制要求的 4 个电压矢量,然后通过两个滞环比较器结合简单的扇区划分,确定最优电压矢量所在轴线,同时构建中点电压与零序电流控制平面,并对系统在控制平面所处扇区进行判断.在此基础上,根据最优电压矢量所在绕组的相电流iy的极性,实现最优电压矢量的选择,并进一步构建DTC最优开关矢量表.最后,通过实验结果验证了所提控制策略的可行性和有效性.
Keyword ：
T型三电平逆变器 T型三电平逆变器 中点电压平衡 中点电压平衡 六相永磁同步电机 六相永磁同步电机 直接转矩控制 直接转矩控制 零序电流抑制 零序电流抑制
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| GB/T 7714 | 黄德猛 , 周扬忠 , 屈艾文 et al. 具有中点电压平衡与零序电流抑制的T型三电平逆变器供电六相PMSM-DTC [J]. | 电工技术学报 , 2024 , 39 (20) : 6371-6385 . |
| MLA | 黄德猛 et al. "具有中点电压平衡与零序电流抑制的T型三电平逆变器供电六相PMSM-DTC" . | 电工技术学报 39 . 20 (2024) : 6371-6385 . |
| APA | 黄德猛 , 周扬忠 , 屈艾文 , 禹春敏 . 具有中点电压平衡与零序电流抑制的T型三电平逆变器供电六相PMSM-DTC . | 电工技术学报 , 2024 , 39 (20) , 6371-6385 . |
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Abstract ：
A permanent magnet synchronous linear servo motor has the characteristics of high thrust density, high efficiency, and fast control response. It is widely used in rail transit, intelligent manufacturing, and aerospace fields. The electrical or mechanical parameters of the motor and nonlinear resistance interference will affect the high precision control of the linear servo. Therefore, the stable and efficient displacement control algorithm has important engineering application value to improve the system performance. Servo control can be divided into serial and parallel systems according to the relative position of displacement and velocity loop. However, whether serial or parallel control, most controller parameters need to be set in advance and are generally fixed, and adjusting the actual control effect is impossible. This paper proposes a parallel control strategy of variable parameter displacement velocity of permanent magnet synchronous linear motor based on composite neural network reconstruction object, which realizes the high-performance control of linear servo motor. Firstly, a parallel controller with variable parameters is designed using the error information of the moving displacement and linear velocity. Then, the displacement output of the permanent magnet synchronous linear motor is reconstructed by a composite radial basis neural network containing multi-dimensional information of the control object, and the partial derivative of the displacement to the control signal is obtained. Finally, based on the closed-loop stability condition of the system, a complete parameter update strategy of parallel controller with displacement velocity is provided according to the comparison between periodic retrieval errors and control targets. In the experiment, a permanent magnet synchronous linear servo system is designed, and different network observations, position controls, and object parameter controls are compared. The network comparison shows that the composite radial-based neural network has fast observation speed and high observation accuracy, and the observation time and root mean square error are 18.63 μs and 0.063 mm, respectively. The position control comparison shows that the variable parameter parallel algorithm has higher control precision than the fixed parameter algorithm, such as PID control, with a 30%～50% improvement effect in the displacement and velocity control error indexes. The parameter control comparison shows that in the variable parameter parallel control strategy, when the moving mass changes, the root mean square of displacement error is less than 0.015 mm, and the absolute maximum error is less than 0.060 mm, which means that the algorithm has stability and universality. The following conclusions can be drawn: (1) The composite RBF neural network structure has better observation performance than the traditional RBF neural network. Compared with the traditional improvement method, it has a better effect with less computing pressure on the processor. (2) Compared with the fixed coefficient algorithm, such as PID, the proposed variable parameter parallel control strategy can effectively improve the control performance of the actuator displacement. (3) The variable parameter parallel control strategy can guarantee the high precision control effect under different displacement settings and object parameters. © 2024 China Machine Press. All rights reserved.
Keyword ：
Controllers Controllers Errors Errors Linear motors Linear motors Mean square error Mean square error Permanent magnets Permanent magnets Position control Position control Radial basis function networks Radial basis function networks Three term control systems Three term control systems Velocity control Velocity control
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| GB/T 7714 | Bao, Mingkun , Zhou, Yangzhong . Parallel Displacement Velocity Control of Permanent Magnet Synchronous Linear Motor with Variable Parameters Based on Composite Neural Network Reconstruction Object [J]. | Transactions of China Electrotechnical Society , 2024 , 39 (8) : 2470-2484 . |
| MLA | Bao, Mingkun et al. "Parallel Displacement Velocity Control of Permanent Magnet Synchronous Linear Motor with Variable Parameters Based on Composite Neural Network Reconstruction Object" . | Transactions of China Electrotechnical Society 39 . 8 (2024) : 2470-2484 . |
| APA | Bao, Mingkun , Zhou, Yangzhong . Parallel Displacement Velocity Control of Permanent Magnet Synchronous Linear Motor with Variable Parameters Based on Composite Neural Network Reconstruction Object . | Transactions of China Electrotechnical Society , 2024 , 39 (8) , 2470-2484 . |
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Abstract ：
Since the winding and permanent magnet of bearingless flux-switching permanent magnet motors are located on the stator, the composition of the air gap magnetic field is complicated, which makes the mutual coupling problem of suspension and rotation of the motors prominent, causing the control performance of the suspension and rotation to be affected. Therefore, based on the rotor dynamics model, a decoupling control strategy based on finite element analysis (FEA) and linear active disturbance rejection theory is proposed. First, according to the structure of the motors and the FEA results, the stiffness matrix of the motor suspension plane coupling itself and its coupling with the rotation plane was obtained. Then, through rotor dynamics analysis, the kinematics model of the suspension system was obtained. Furthermore, the coupling stiffness matrix is combined with the active disturbance rejection theory to construct a decoupling control strategy for online self-tuning of key system parameters. The simulation and experimental results show that the proposed scheme has good dynamic performance and robustness while ensuring the precision of suspension control.
Keyword ：
Analytical models Analytical models Bearingless flux-switching permanent magnet motors Bearingless flux-switching permanent magnet motors Couplings Couplings decoupling control decoupling control Force Force linear active disturbance rejection linear active disturbance rejection model assistance model assistance Motors Motors rotor dynamics rotor dynamics Rotors Rotors Torque Torque Windings Windings
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| GB/T 7714 | Liang, Tongwei , Zhou, Yangzhong , Chen, Dongyuan et al. Linear Active Disturbance Rejection Decoupling Control of Bearingless Flux-Switching Permanent Magnet Motors Based on System Model Assistance [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2024 , 72 (1) : 781-792 . |
| MLA | Liang, Tongwei et al. "Linear Active Disturbance Rejection Decoupling Control of Bearingless Flux-Switching Permanent Magnet Motors Based on System Model Assistance" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 72 . 1 (2024) : 781-792 . |
| APA | Liang, Tongwei , Zhou, Yangzhong , Chen, Dongyuan , Lin, Jialong . Linear Active Disturbance Rejection Decoupling Control of Bearingless Flux-Switching Permanent Magnet Motors Based on System Model Assistance . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2024 , 72 (1) , 781-792 . |
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Abstract ：
It is a key to realizing stable suspension operation of bearingless motor that the rotor radial displacement information is acquired accurately. Sensor applications are sensitive to environments, limiting to scenarios, and increasing costs. Herein, a radial displacement sensorless control method in the full speed range for single-winding bearingless flux-switching permanent magnet motor is proposed. First, an eccentric modulation function is presented, and the flux linkage equation of each winding with rotor eccentricity is derived based on the air-gap magnetic field modulation theory. Therein, the phase inductance and flux are functions of the rotor displacement. Second, the bias-flux equations of the symmetric windings are deduced, and the rotor displacement observer of the medium-high speed is established based on the bias-flux amplitude. Due to flux information being difficult to extract at lowspeed, the high-frequency current signal is injected into the dT-axis of the torque plane. The rotor displacement observer of the zero-low speed is established based on the high-frequency bias-induced EMF amplitude. Besides, a novel smooth switching process is designed. Finally, the observers are analyzed, and the radial displacement sensorless control strategy is built. The experimental results verified the validity of the proposed method.
Keyword ：
high-frequency current signal injection high-frequency current signal injection magnetic field modulation magnetic field modulation radial displacement sensorless control radial displacement sensorless control Single-winding bearingless flux-switching permanent magnet motor Single-winding bearingless flux-switching permanent magnet motor symmetric windings symmetric windings
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| GB/T 7714 | Chen, Yao , Zhou, Yangzhong . Radial Displacement Sensorless Control in Full Speed Range of Single-Winding Bearingless Flux-Switching Permanent Magnet Motor [J]. | IEEE TRANSACTIONS ON ENERGY CONVERSION , 2023 , 38 (1) : 599-610 . |
| MLA | Chen, Yao et al. "Radial Displacement Sensorless Control in Full Speed Range of Single-Winding Bearingless Flux-Switching Permanent Magnet Motor" . | IEEE TRANSACTIONS ON ENERGY CONVERSION 38 . 1 (2023) : 599-610 . |
| APA | Chen, Yao , Zhou, Yangzhong . Radial Displacement Sensorless Control in Full Speed Range of Single-Winding Bearingless Flux-Switching Permanent Magnet Motor . | IEEE TRANSACTIONS ON ENERGY CONVERSION , 2023 , 38 (1) , 599-610 . |
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