| 引用本文: | 付 媛,王 毅,张祥宇,罗应立.多端电压源型直流系统的功率协调控制技术[J].电力自动化设备,2014,34(9): |
| FU Yuan,WANG Yi,ZHANG Xiangyu,LUO Yingli.Coordinated power control of VSC-MTDC system[J].Electric Power Automation Equipment,2014,34(9): |
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| 摘要: |
| 为维持扰动后多端电压源型直流系统内功率平衡及各端电网的电能质量，定义自由运行、下垂运行和限流运行3种运行模式。根据直流电压-有功及有功-频率调节特性，分别提出在不同运行模式下采用相应的功率协调控制策略，使系统内各端换流站能够共同参与功率协调，增强系统对有功扰动的承受能力。通过对含风电的多端电压源型直流系统的仿真分析表明，所提出的3种运行模式以及有功协调控制策略有助于系统遭受扰动后有功功率恢复平衡，提高系统运行的稳定性。 |
| 关键词: 多端直流 直流输电 协调控制 功率控制 稳定性 控制 风电 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（51277072）；中央高校基本科研业务费专项资金资助项目（2014MS97，2014ZZD11） |
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| Coordinated power control of VSC-MTDC system |
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FU Yuan, WANG Yi, ZHANG Xiangyu, LUO Yingli
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State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources，North China Electric Power University，Baoding 071003，China
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| Abstract: |
| In order to maintain its power balance and grid power quality after disturbances，three operating modes of the VSC-MTDC（Voltage-Source-Converter based Multi-Terminal Direct Current） system are defined：free，droop and current-limiting，and the corresponding coordinated power control strategies are proposed respectively，which make all terminal converters of VSC-MTDC system participating in the power regulation to enhance the system ability against the active power disturbances. Simulative results of a typical VSC-MTDC system with wind power generation show that，the proposed operating modes and coordinated active power control strategies benefit the recovery of active power balance after grid disturbances and improve the stability of system operation. |
| Key words: multi-terminal DC DC power transmission coordinated control power control stability control wind power |
