异步电机高频电压穿越控制系统设计  

Design of high⁃frequency voltage ride⁃through control system for asynchronous motor

作　　者：曾繁政 ZENG Fanzheng(College of Mechanical and Electrical Engineering,Hezhou University,Hezhou 542899,China)

机构地区：[1]贺州学院机械与电气工程学院,广西贺州542899

出　　处：《现代电子技术》2020年第24期60-62,66,共4页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(61540055)。

摘　　要：异步电机在高频电压作用下输出偏差较大、功率饱和度差,为了提高异步电机高频电压穿越控制能力,提出基于零相移滤波和电机动态频率响应特性分析的异步电机高频电压穿越控制方法。构建异步电机高频电压穿越的交流频率和直流电压参数分析模型,采用直流型分布式电源输出转换控制的方法进行异步电机高频电压输出特征检测,建立异步电机高频电压穿越的间歇性波动控制模型,采用零相移滤波方法进行控制过程的干扰抑制,根据电机的动态频率响应进行干扰抑制和反馈调节,结合交直流混合微电网控制结构实现异步电机高频电压穿越控制系统设计。测试结果表明,采用该系统进行异步电机高频电压穿越控制的输出稳定性较好,功率响应饱和度较高,提高了电机的输出效能。In allusion to the problem that the output deviation of asynchronous motor is large and the power saturation is poor under the action of high⁃frequency voltage,a asynchronous motor high⁃frequency voltage ride⁃through control method based on the zero phase⁃shift filter and the dynamic frequency response characteristic analysis of the motor is proposed to improve the high⁃frequency voltage ride⁃through control of the asynchronous motor.The alternating current frequency and the direct current(DC)voltage parameter analysis model of the high⁃frequency voltage ride⁃through of the asynchronous motor are constructed.The DC distributed power supply output conversion control method is used to detect the high⁃frequency voltage output characteristic of the asynchronous motor,and establish the intermittent fluctuation control model of the high⁃frequency voltage ride⁃through of the asynchronous motor.The zero phase⁃shift filter method is used to perform the interference suppression in the control process,the interference suppression and the feedback adjustment are carried out according to the dynamic frequency response of the motor,and the design of high⁃frequency voltage ride⁃through control system of the asynchronous motor is realized by combing with the AC/DC hybrid microgrid control structure.The testing results show that the output steady⁃state and power respond saturation of the high frequency voltage ride⁃through control of asynchronous motor is better in this system,which improves the output efficiency of the motor.

关 键 词：异步电机 高频电压 穿越控制 系统设计 干扰抑制 系统测试 

分 类 号：TN876-34[电子电信—信息与通信工程] TM46[电气工程—电器]