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论文:2019,Vol:37,Issue(4):794-801 |
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引用本文： |
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周奇勋, 徐贵超, 张玉峰, 周勇. 电动伺服加载系统用PWM整流器快速响应方法[J]. 西北工业大学学报 |
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ZHOU Qixun, XU Guichao, ZHANG Yufeng, ZHOU Yong. PWM Rectifier Fast Response Method for Electric Servo Loading System[J]. Northwestern polytechnical university |
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| 电动伺服加载系统用PWM整流器快速响应方法 |
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| 周奇勋1, 徐贵超1, 张玉峰1, 周勇2 |
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1. 西安科技大学 电气与控制工程学院, 陕西 西安 710054;
2. 西北工业大学 航空学院, 陕西 西安 710072 |
| 摘要: |
| 电动伺服加载系统可更加全面测试电机本体与控制器的稳/动态性能，广泛用于飞控作动器的研发领域。传统双PWM变换器存在响应滞后特性，当负载功率突变，整流器的直流输出电压会产生波动。通过增大直流侧电容容量可抑制电压波动，但电容容量的增大会导致系统调节时间变长，系统的响应速度变慢。通过分析负载突变引起的直流输出电压波动现象，提出一种变iq负载功率前馈控制方法，通过补偿网侧有功电流的方式实现两侧的瞬时有功功率平衡。仿真结果表明，所提方法减小了直流电容容量，提高了系统的动态响应速度。 |
| 关键词:
电动伺服加载系统
三相PWM整流器
负载功率前馈控制
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| PWM Rectifier Fast Response Method for Electric Servo Loading System |
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| ZHOU Qixun1, XU Guichao1, ZHANG Yufeng1, ZHOU Yong2 |
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1. School of Electronic and Control Engineering, Xi'an University of Science and Technology, Xi'an 710054, China;
2. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China |
| Abstract: |
| The electric servo loading system can more fully test the stability and dynamic performance of the motor body and controller, and is widely used in the research and development of flight control systems. The traditional dual PWM converter has hysteresis characteristics. When the load power is abrupt, especially when the load power is suddenly reduced, the DC output voltage of the PWM rectifier will fluctuate. Voltage fluctuations can be suppressed by increasing the capacitance of the DC side capacitors, but an increase in the capacitance capacity causes the adjustment time of the system to become longer and slows down the response speed of the system. By analyzing the fluctuation of DC output voltage caused by sudden load change, a variable feedforward control method for iq load power is proposed, which uses the method of compensating the active current on the grid side to achieve instantaneous active power balance on both sides. The simulation results show that the method reduces the DC capacitor capacity and improves the dynamic response speed of the system. |
| Key words:
electric servo loading system
three-phase PWM rectifier
variable load power feedforward control
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| 收稿日期: 2018-09-10
修回日期:
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| DOI: 10.1051/jnwpu/20193740794 |
| 基金项目: 西安科技大学学科高峰计划项目（2017PYPT02）与西安科技大学博士后科研启动基金（2019QDJ020）资助 |
| 通讯作者:
Email： |
| 作者简介: 周奇勋(1979-),西安科技大学副教授、博士,主要从事永磁电机系统优化设计与驱动控制技术研究。
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