| 一种三相三线动态电压调节器的单周控制研究 |
| |
| 引用本文： | 李承,邹云屏,孙改平.一种三相三线动态电压调节器的单周控制研究[J].高电压技术,2007,33(4):147-150,156. |
| |
| 作者姓名： | 李承 邹云屏 孙改平 |
| |
| 作者单位： | 华中科技大学电气与电子工程学院,武汉430074 |
| |
| 摘 要： | 为提升与改进动态电压调节器(DVR)的动态补偿性能,提出了一种采用两桥臂逆变器的三相三线系统DVR的单周控制模型并在介绍电路构成的基础上分析主电路,导出了DVR的单周控制模型。单周控制技术具有电路简单、动态响应快、实现方便等优点,为DVR控制提供了一种新的途径。对于给出的单周控制DVR其电压暂降和暂升等情况的结果表明,单周控制用于DVR在电压变化范围≤35%时有较好的补偿作用,其控制方案正确、可行。
|
| 关 键 词： | 动态电压调节器 两桥臂变换器 三相三线系统 单周控制 控制建模 电压补偿 |
| 文章编号： | 1003-6520（2007）04-0147-04 |
| 修稿时间： | 2006-07-31 |
Dynamic Voltage Regulator with One Cycle Control for Three-phase Three-wire Systems |
| |
| LI Cheng,ZOU Yun-ping,SUN Gai-ping.Dynamic Voltage Regulator with One Cycle Control for Three-phase Three-wire Systems[J].High Voltage Engineering,2007,33(4):147-150,156. |
| |
| Authors: | LI Cheng ZOU Yun-ping SUN Gai-ping |
| |
| Affiliation: | School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| Abstract: | A new one-cycle control model is proposed to improve the compensation performances of the dynamic voltage regulator in this paper. This dynamic voltage regulator employs a two-leg inverter for three-phase three-wire systems. The proposed DVR can be used either to compensate a voltage sag to 65% of normal voltage or a voltage jump up to 135% of normal voltage. One-cycle control technique is provided with some good performances such as simple circuit structure, faster dynamic response and easy-realization. The control model is presented based on the analysis of main power circuit. And then conditions with voltage sagging to 65% and a voltage jumping up to 135% of normal voltage are simulated. The simulation results show that DVR with one-cycle control has good compensation performances for voltage dips and sags. One-cycle control DVR is a feasible control scheme. |
| |
| Keywords: | dynamic voltage regulator two-leg inverter three-phase three-wire systems one-cycle control control modeling voltage compensation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
