| 基于VSC的多端直流输电系统的控制策略 |
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| 引用本文： | 陈海荣. 基于VSC的多端直流输电系统的控制策略[J]. 电力建设, 2011, 32(8): 58-63. DOI: 10.3969/j.issn.1000-7229.2011.08.013 |
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| 作者姓名： | 陈海荣 |
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| 作者单位： | 金华职业技术学院,浙江省金华市,321017 |
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| 摘 要： | 在换流器控制器设计中,采用基于输入输出反馈线性化策略的双闭环控制器结构和直流电压前馈补偿环节,既实现有功和无功的解耦控制,又改善了换流器交流侧的输出电压和电流波形.在多端系统稳定控制中,提出了多点直流电压控制策略,它提高了多端系统的功率平衡能力和运行的可靠性与经济性.文章对1个5端的电压源型直流输电( voltages...
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| 关 键 词： | 电压源型换流器(VSC) 多端直流输电 电流解耦控制 多点直流电压控制 分布式发电 |
Control Strategy of VSC Based Multi-terminal HVDC Transmission System |
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| CHEN Hairong. Control Strategy of VSC Based Multi-terminal HVDC Transmission System[J]. Electric Power Construction, 2011, 32(8): 58-63. DOI: 10.3969/j.issn.1000-7229.2011.08.013 |
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| Authors: | CHEN Hairong |
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| Affiliation: | CHEN Hairong(Jinhua Polytechnic,Jinhua 321017,Zhejiang Province,China) |
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| Abstract: | Control strategy of voltage source converter(VSC) based multi-terminal HVDC transmission system is investigated in this paper.DC voltage feed-forward compensation and controller configuration of double closed loop based on linearized feedback of input and output are applied in controller design of the converter.This approach can realize decoupled control of active and reactive power.Meanwhile,it can improve the voltage and current waveforms at AC side of the converter.Multi-point DC voltage control strategy is proposed for stability control of the multi-terminal HVDC system,which is able to improve power balance ability of the multi-terminal DC(MTDC) system and enhance reliability and economy of system operation.Simulation is performed on a VSC-MTDC system with five terminals and the results show that the proposed control strategy with good dynamic characteristics is suitable for integration of distributed generation system and power system. |
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| Keywords: | voltage source converter(VSC) multi-terminal DC transmission decoupled current control multi-point DC voltage control distributed generation |
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