| 三相四线动态电压调节器的单周控制策略与仿真分析 |
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| 引用本文： | 李承,邹云屏.三相四线动态电压调节器的单周控制策略与仿真分析[J].电网技术,2007,31(2):52-56. |
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| 作者姓名： | 李承 邹云屏 |
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| 作者单位： | 华中科技大学,电气与电子工程学院,湖北省,武汉市,430074 |
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| 摘 要： | 提出了一种三相四线系统动态电压调节器(dynamic voltage regulator，DVR)的单周控制模型。在分析主电路的基础上推导出了DVR的单周控制模型。在电压骤降、骤升以及电源中含有谐波的情况下对新建立的模型进行了仿真研究。结果表明，单周控制用于三相四线DVR既具有较好的动态特性，又控制电路简单。在电压变化范围不大于30%时有较好的补偿效果，并对电源谐波有一定的抑制作用。
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| 关 键 词： | 动态电压调节器 单周控制策略 三相四线系统 控制建模 电能质量 |
| 文章编号： | 1000-3673(2007)02-0052-05 |
| 修稿时间： | 09 18 2006 12:00AM |
One-Cycle Control Strategy and Simulation of Dynamic Voltage Regulator forThree-Phase Four-Wire System |
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| LI Cheng,ZOU Yun-ping.One-Cycle Control Strategy and Simulation of Dynamic Voltage Regulator forThree-Phase Four-Wire System[J].Power System Technology,2007,31(2):52-56. |
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| Authors: | LI Cheng ZOU Yun-ping |
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| Affiliation: | College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, China |
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| Abstract: | A new one-cycle control scheme of dynamic voltage regulator (DVR) for three-phase four-wire system is proposed. On the basis of main circuit analysis, the one-cycle control model for DVR is deduced and simulated under voltage sag by 35% of rated voltage, voltage swell by 35% of rated voltage and the condition that there are harmonics in power source. Simulation results show that DVR with one-cycle control for three-phase four-wire system not only possesses better dynamic characteristics, but also its control circuit is simple. The DVR with one-cycle control can offer better compensation while the voltage variation extent is less than 30% and can restrain harmonics in power source as well. |
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| Keywords: | dynamic voltage regulator one-cycle control strategy three-phase four-wire system control modeling power quality |
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