引用本文: | 汪璐,邵如平,王雅璐.基于海上大型风电场VSC-HVDC系统电网侧控制器的设计[J].电力系统保护与控制,2015,43(17):107-112.[点击复制] |
WANG Lu,SHAO Ruping,WANG Yalu.Grid side controller design of VSC-HVDC system based on large offshore wind farm[J].Power System Protection and Control,2015,43(17):107-112[点击复制] |
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摘要: |
为了检测和分析风电场中风速等一系列可变因素对VSC-HVDC系统的影响,从而优化大型海上风电场结构,提出了一种新型的VSC-HVDC 模型——无开关VSC-HVDC相量模型,可以通过调制量来反馈控制系统。在此基础上,结合各种策略的优缺点,选择一种有效地控制策略进行控制器的设计,以实现系统的控制。分析电网侧交流电流和直流电压的所需控制策略,优选出了dq电流控制和PI电压控制作为最佳控制策略,通过对内环外环控制器的参数计算和调节来达到设计要求。Matlab搭建出的模型仿真结果表明,建立的无开关VSC-HVDC相量模型控制策略的选用和控制器的参数设计具有适用性和合理性。 |
关键词: HVDC dq控制 PI控制 VSC-HVDC 仿真模型 |
DOI:10.7667/j.issn.1674-3415.2015.17.017 |
投稿时间:2014-11-24修订日期:2015-03-31 |
基金项目: |
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Grid side controller design of VSC-HVDC system based on large offshore wind farm |
WANG Lu,SHAO Ruping,WANG Yalu |
(School of Electric Engineering and Automation, Nanjing University of Technology, Nanjing 211816, China) |
Abstract: |
For detection and analysis of wind speed and a series of variable factors on the impact of VSC-HVDC system in wind farm, so as to improve the structure of large offshore wind farm, this paper puts forward a new type of VSC-HVDC model, named no switch VSC-HVDC phasor model, which can control system through feedback of modulation. On this basis, it combines the advantages and disadvantages of various strategies and chooses a kind of effective control strategies for the design of controller in order to realize the control of the system. AC current and DC voltage of power grid side and their control strategies are analyzed, the dq current control and PI voltage control are chosen as the optimal control strategy, through calculating and adjusting the inner and outer loop controller parameters to meet the design requirements. Matlab simulation results show that the strategies of no switch control VSC-HVDC phasor model has the applicability and rationality. |
Key words: HVDC dq control PI control VSC-HVDC simulation model |