| 引用本文: | 高阳,高冲,林畅,李栋,贺之渊,寇龙泽,刘栋.对称电容谐振式高压直流装置送能系统[J].电力自动化设备,2021,41(2): |
| GAO Yang,GAO Chong,LIN Chang,LI Dong,HE Zhiyuan,KOU Longze,LIU Dong.Symmetrical capacitive resonant high-voltage DC device energy supply system[J].Electric Power Automation Equipment,2021,41(2): |
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| 对称电容谐振式高压直流装置送能系统 |
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高阳1,2, 高冲1,2, 林畅1,2, 李栋1,3, 贺之渊1,2,4, 寇龙泽1,4, 刘栋1,4
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1.全球能源互联网研究院有限公司 先进输电技术国家重点实验室，北京 102209;2.全球能源互联网研究院有限公司 大功率电力电子北京市重点实验室，北京 102209;3.华北电力大学 电气与电子工程学院，北京 102206;4.全球能源互联网研究院有限公司 直流电网技术与仿真实验室，北京 102209
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| 摘要: |
| 高电位驱动电路的送能系统是保证混合式直流断路器稳定工作的关键设备。与目前“磁隔离”送能原理不同，利用电容器“隔直通交”特性和LC电路串联谐振原理，提出一种对称电容谐振式高压直流装置送能系统，实现了地电位侧电能向高电位直流侧装置的高效传输。分析了该送能系统的工作原理，并针对该拓扑结构提出了电路参数设计原则和设计方法以及若干衍生拓扑结构。通过仿真对具体算例进行验证，仿真结果表明在直流故障工况下该送能系统仍然可以稳定工作，进而验证了所提新型送能系统的可行性和可靠性。 |
| 关键词: 高压直流装置 高压直流断路器 送能系统 LC串联谐振 拓扑结构 |
| DOI：10.16081/j.epae.202012027 |
| 分类号:TM721.1 |
| 基金项目:国家电网公司科技项目(4000-201999532A-0-0-00) |
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| Symmetrical capacitive resonant high-voltage DC device energy supply system |
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GAO Yang1,2, GAO Chong1,2, LIN Chang1,2, LI Dong1,3, HE Zhiyuan1,2,4, KOU Longze1,4, LIU Dong1,4
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1.State Key Laboratory of Advanced Transmission Technology, Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102209, China;2.Beijing Key Laboratory of High-power Power Electronics, Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102209, China;3.School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China;4.Laboratory of DC Grid Technology & Simulation, Global Energy Interconnection Research Institute Co.,Ltd.,Beijing 102209, China
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| Abstract: |
| The energy supply system of high potential drive circuit is the key device to ensure the stable operation of hybrid DC circuit breaker. Different from the current “magnetic isolation” energy supply principle, based on the capacitance characteristics of DC isolation and AC passed and the series resonant principle of LC circuit, a symmetrical capacitive resonant high-voltage DC device energy supply system is proposed to realize the highly efficient energy supply from ground-potential side to high-potential DC side. The working principle of the proposed energy supply system is analyzed, and the para-meter design principle and method based on the proposed topology structure are proposed, together with a certain number of derived topologies. The simulative results show that the energy supply system can still work stably under DC fault, which verifies the feasibility and reliability of the proposed novel energy supply system. |
| Key words: high-voltage DC device high-voltage DC circuit breaker energy supply system LC series resonance topology structure |
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