考虑故障特性模拟的虚拟电机系统及其控制

doi:10.19595/j.cnki.1000-6753.tces.190135

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摘要因交流传动在现代工业中应用广泛,针对电机驱动电源的性能测试备受重视。基于此,该文提出一种利用背靠背变换器代替交流电机及其机械负载的虚拟电机系统设计方案。针对交流电机运行工况复杂,需考虑暂态过程和故障状态,数学建模和端口特性实时模拟存在困难等实际问题,该文建立考虑定子绕组故障的异步电机模型,通过方案对比选取了四阶龙格库塔数值求解法。电机电流跟踪控制则选用准比例谐振控制器,在考虑数字控制延时的前提下,以提高控制器带宽和动态响应能力为目标完成控制参数优化设计。仿真和实验表明,该虚拟电机系统可以准确模拟异步电机在正常状态以及定子绕组匝间故障状态下的端口特性,即可作为交流电子负载用于电机驱动电源的开发与测试。

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	杨庆文
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	赵荣祥

关键词 ：虚拟电机, 异步电机, 匝间短路, 准比例谐振控制器

Abstract：AC motors are widely used in modern industry, and performance tests for motor drivers have received much attention. This paper presents a design scheme of a virtual motor system that uses a back-to-back converter instead of actual motor and its load. Since the operating conditions of AC motors are complicate, it is necessary to consider the transient processes and fault conditions. Therefore, the mathematical modeling and real-time simulation are difficult. This paper presented an asynchronous motor model considering stator winding fault, and selected quasi proportional resonant (QPR) controller for dynamic current tracking by the comparison of numerical calculation methods. Under the premise of digital control delay estimation, parameter optimization design was achieved with the goal of improving bandwidth and dynamic response capability. Simulation and experiments show that the virtual motor system can simulate port characteristics of asynchronous motor under normal conditions and the condition of stator winding turn-to-turn short-circuit fault. It can be used as an AC electronic load for the development and testing of motor drivers.

Key words： Virtual motor asynchronous motor turn-to-turn short-circuit fault quasi proportional resonant controller

收稿日期: 2019-01-30 出版日期: 2020-03-27

PACS:

TM46

基金资助:国家自然科学基金资助项目（51677167,51690182）

通讯作者: 杨欢男,1981年生,教授,博士生导师,研究方向为分布式发电与微电网、智能配用电、高效能电机系统等。E-mail: yanghuan@zju.edu.cn

作者简介: 杨庆文男,1994年生,硕士研究生,研究方向为高效能电机系统,交流电子负载。E-mail: yangqingwen@zju.edu.cn

引用本文:

杨庆文, 何绍民, 杨欢, 顾小卫, 赵荣祥. 考虑故障特性模拟的虚拟电机系统及其控制[J]. 电工技术学报, 2020, 35(6): 1239-1250. Yang Qingwen, He Shaomin, Yang Huan, Gu Xiaowei, Zhao Rongxiang. Virtual Motor System Considering Fault Characteristic Simulation and Its Control Strategy. Transactions of China Electrotechnical Society, 2020, 35(6): 1239-1250.

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