| 引用本文: | 王鸿翔,王国平,王 星,等.基于7电平T型变换器的SRM改进转矩分配函数控制策略[J].电力系统保护与控制,2025,53(17):57-66.[点击复制] |
| WANG Hongxiang,WANG Guoping,WANG Xing,et al.An improved torque sharing function control strategy for SRM based on a 7-level T-type converter[J].Power System Protection and Control,2025,53(17):57-66[点击复制] |
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| 摘要: |
| 为解决传统不对称半桥变换器对开关磁阻电机(switched reluctance motor, SRM)驱动能力以及转矩脉动抑制上的不足，提出了一种基于7电平T型变换器的电平矢量矩阵位移改进转矩分配函数(torque sharing function, TSF)控制策略。首先，构造出新型7电平T型变换器，其串并联结构和T型结构能够产生额外4种工作电平。然后，改进了电平矢量矩阵位移TSF的转矩滞环比较过程并提出了电平矢量矩阵位移策略，通过转矩闭环实现电平矢量矩阵位移以抑制换相区的转矩脉动。最后，仿真和实验验证了所提变换器以及控制策略不仅提高了电机的转矩输出能力，而且抑制了转矩脉动。 |
| 关键词: 多电平变换器 开关磁阻电机 转矩分配函数控制 转矩脉动 |
| DOI：10.19783/j.cnki.pspc.247006 |
| 投稿时间：2024-10-08修订日期：2025-05-04 |
| 基金项目:江苏省科技计划专项资金(创新支撑计划国际科技合作/港澳台科技合作)项目资助(BZ2022014)；深圳市基础研究专项(自然科学基金)重点项目资助(JCYJ20220818100000001)；江苏省现代农机装备与技术示范推广项目资助(NJ2023-27)；江苏省高校优秀科技创新团队项目资助(JSESTITU2021-53)；淮安市逆向工程与数字化设计重点实验室项目资助(HAP202303) |
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| An improved torque sharing function control strategy for SRM based on a 7-level T-type converter |
| WANG Hongxiang1,WANG Guoping2,WANG Xing2,CHEN Hao2,3,4,PAN Jianfei5,XU Lijun4 |
| (1. Jiangsu Vocational College of Electronics and Information, Huaian 223003, China; 2. International Joint Research
Center of Central and Eastern European Countries on New Energy Electric Vehicle Technology and Equipment,
China University of Mining and Technology, Xuzhou 221008, China; 3. Shenzhen Research Institute,
China University of Mining and Technology, Shenzhen 518057, China; 4. School of Control Engineering,
Xinjiang Institute of Engineering, Urumqi 830023, China; 5. School of Electromechanical and Control
Engineering, Shenzhen University, Shenzhen 518054, China) |
| Abstract: |
| To overcome the limitations of conventional asymmetric half-bridge converters in terms of driving capability and torque ripple suppression for switched reluctance motors (SRM), an improved torque sharing function (TSF) control strategy with voltage-level vector shift is proposed based on a 7-level T-type converter. First, a novel 7-level T-type converter is constructed with a series-parallel switching function and a T-type structure that generate four additional voltage levels. Subsequently, the TSF’s torque hysteresis comparison process is improved, and a voltage-level vector shift strategy is proposed. Torque ripple in the phase change region is suppressed by implementing the voltage-level vector shift through the closed-loop torque control. Finally, simulations and experiments verify that the proposed converter and control strategy not only improve the torque output capability of the motor but also significantly reduce torque ripple. |
| Key words: multilevel converter switched reluctance motor torque sharing function control torque ripple |
