| 引用本文: | 程显,葛国伟,杨培远,吴启亮,廖敏夫.基于真空断路器与SF6断路器串联的新型混合式高压直流断路器理论分析[J].电力自动化设备,2019,39(6): |
| CHENG Xian,GE Guowei,YANG Peiyuan,WU Qiliang,LIAO Minfu.Theoretical analysis of novel hybrid HVDC circuit breaker based on a series of vacuum interrupter and SF6 interrupters[J].Electric Power Automation Equipment,2019,39(6): |
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| 摘要: |
| 提出基于真空断路器与SF6断路器串联的混合式高压直流断路器新型拓扑结构，在传统强迫过零直流开断的基础上，提出以高压串联晶闸管组件续流支路创造主开关电压零休的思路，进而提高主开关的动态介质恢复强度。分析了新型混合式高压直流断路器的拓扑结构、工作原理、工作过程，得到其电压零休时间的数学描述和动态电压分布协同调控措施。然后基于连续过渡模型和改进Mayr模型搭建了新型混合式高压直流断路器的仿真电路，分析得到续流支路限流电阻、电感、振荡回路参数等对电压零休时间、反向暂态恢复电压的影响规律。 |
| 关键词: 高压直流输电 高压直流断路器 续流串联晶闸管 电压零休 |
| DOI：10.16081/j.issn.1006-6047.2019.06.010 |
| 分类号:TM561 |
| 基金项目:国家自然科学基金资助项目(51407163,51777025)；中国博士后科学基金面上资助项目(2017M622370)；河南省高校重点科研项目(16A470014,19A470008) |
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| Theoretical analysis of novel hybrid HVDC circuit breaker based on a series of vacuum interrupter and SF6 interrupters |
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CHENG Xian1,2, GE Guowei1,2, YANG Peiyuan1, WU Qiliang1, LIAO Minfu3
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1.College of Electrical Engineering, Zhengzhou University, Zhengzhou 450001, China;2.Henan Engineering Research Center of Power Transmission & Distribution Equipment and Electrical Insulation, Zhengzhou 450001, China;3.College of Electrical Engineering, Dalian University of Technology, Dalian 116023, China
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| Abstract: |
| A novel hybrid HVDC CB(Circuit Breaker) based on VI(Vacuum Interrupter) and GI(SF6 Interrupter) connected in series is proposed. Based on the DC interruption through traditional artificial current zero method, the idea of creating the zero-voltage for the main mechanical switch by using the continuous branch of high voltage thyristor module and current limiting element is put forward to improve the DDRS(Dynamic Dielectric Recovery Strength). The topological structure, working principle and working process of the hybrid HVDC CB are analyzed, based on which, the mathematic description of the zero-voltage time and the coordinated control measures of the dynamic voltage distribution are obtained. The simulation circuit of the novel HVDC CB is built according to the continuous transition model and the improved Mayr arc model. The influences of the current-limiting resistance and inductance of the follow-current loop and parameters of the oscillation circuit on zero-voltage time and the inverted transient recovery voltage is gained. |
| Key words: HVDC power transmission HVDC circuit breaker follow-current loop with thyristor zero-voltage |
