| 向无源网络供电的VSC-HVDC系统的控制器设计 |
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| 引用本文： | 陈海荣,徐政. 向无源网络供电的VSC-HVDC系统的控制器设计[J]. 中国电机工程学报, 2006, 26(23): 0-48 |
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| 作者姓名： | 陈海荣 徐政 |
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| 作者单位： | 浙江大学电机系,浙江省,杭州市,310027 |
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| 基金项目： | 国家自然科学基金(50277034)。~~ |
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| 摘 要： | 建立了在同步旋转坐标系下新型直流输电系统的暂态数学模型,对向无源交流网络供电的直流输电系统的控制器进行了设计。整流侧控制器由基于输入输出反馈线性化的解耦控制器和电网电压矢量定向策略构成,实现电流的解耦控制和有功功率与无功功率的独立调节。逆变侧控制器则基于换流器稳态数学模型设计了定交流电压控制器,对无源交流网络的母线电压实现控制。基于PSCAD/EMTDC的数字仿真对不同功率因数的负荷和各被控量设定值的不同阶跃变化等各种工况进行了仿真验证。研究表明,所设计的控制器结构简单,具有良好的控制性能,并便于工程应用。
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| 关 键 词： | 高压直流输电 电压源换流器 电流解耦控制 无源网络 锁相环 |
| 文章编号： | 0258-8013（2006）23-0042-07 |
| 收稿时间： | 2006-06-10 |
| 修稿时间： | 2006-06-10 |
Control Design for VSC-HVDC Supplying Passive Network |
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| CHEN Hai-rong,XU Zheng. Control Design for VSC-HVDC Supplying Passive Network[J]. Proceedings of the CSEE, 2006, 26(23): 0-48 |
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| Authors: | CHEN Hai-rong XU Zheng |
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| Affiliation: | Department of E.E., Zhejiang University, Hangzhou 310027, Zhejiang Province, China |
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| Abstract: | The transient mathematical model for the VSC-HVDC system in d-q synchronous reference frame is developed and its controllers are designed.A decoupled controller based on input-output variable feedback linearization is adopted in the rectifier-side controller,which uses a voltage vector coinciding with the system voltage and can control the active and reactive power separately.A constant AC voltage controller is used in the inverter-side,which is based on the steady state mathematical model of the converter.Simulation tests realized by PSCAD/EMTDC are performed to verify the effectiveness of the controller under different operating conditions.The results show that the controller can be applied in real system with its simple,robust and high performance. |
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| Keywords: | HVDC voltage source converter current decoupled control passive network phase lock loop |
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