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电网技术 2010, 34(7) 75-80 DOI:
ISSN: 1000-3673 CN: 11-2410/TM |
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| 电力系统 |
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新型多功能10 kV电压扰动发生器的设计 |
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赵波31,郭剑波2,周飞1,叶傅华11 |
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1．中国电力科学研究院，北京市 海淀区 100192；2．国家电网公司，北京市 西城区 100031 |
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摘要：
提出了适用于10 kV配电电压等级的新型多功能电压扰动发生器的拓扑结构及相关控制算法。采用H桥级联的拓扑结构，将该装置直接串联在线路中，形成了电压扰动发生源。在H桥直流侧采用脉宽调制(pulse width modulation，PWM)整流技术，通过多绕组变压器实现了取能及能量回馈。结合该装置主电路拓扑，提出了d-q同步坐标下逆变器参考电压前馈和输出电压反馈相结合的控制方法，采用电压单闭环PWM整流实现了直流电压稳定。利用PSCAD/ EMTDC软件对装置进行了仿真建模，仿真结果验证了该装置主电路拓扑的可行性及控制策略的有效性。 |
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关键词：
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Design of A Novel Multi-Functional 10 kV Voltage Disturbance Generator |
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ZHAO Bo1, GUO Jian-bo2, ZHOU Fei1, YE Fu-hua1
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1. China Electric Power Research Institute, Haidian District, Beijing 100192, China; 2. State Grid Corporation of China, Xicheng District, Beijing 100031, China |
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Abstract:
The topological structure and related control algorithm for a novel multi-functional voltage disturbance generator suitable to 10 kV distribution network are proposed. Adopting H-bridge cascaded topological structure and directly connecting this device in series with the transmission line, a voltage disturbance generator is formed. At the DC side of the H-bridge, the pulse width modulation (PWM) is utilized, and the acquisition and feedback of energy are implemented by multi-winding transformer. According to the topology of main circuit for this device, a control method, which combines the feed-forward of inverter’s reference voltage with feedback of output voltage in d-q synchronous coordinates, is put forward, and by use of single closed-loop PWM voltage rectifier the stability of DC voltage is realized. The modeling and simulation of the proposed device is implemented by PSCAD/EMTDC, and simulation results show that the topology of the device’s main circuit is feasible and the control strategy is effective. |
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Keywords:
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收稿日期 2009-10-19 修回日期 2009-11-12 网络版发布日期 2010-07-13 |
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DOI: |
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基金项目:
“十一五”国家科技支撑计划重大项目(2007BAA- 12B03)。
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通讯作者: 赵波3 |
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作者简介: |
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作者Email: zhaobo@epri.sgcc.com.cn |
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| 参考文献： |
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