基于人工过零的失超保护100 kA真空断路器试验

胡星光; 钟积科; 李华; 李航; 吴木泉

doi:10.11884/HPLPB202234.210552

基于人工过零的失超保护100 kA真空断路器试验

doi: 10.11884/HPLPB202234.210552

胡星光^{1, 2,},
钟积科³,
李华⁴,
李航^2, ,,
吴木泉²

1.
深圳大学物理与光电工程学院，广东深圳 518061
2.
深圳大学新能源研究中心，广东深圳 518060
3.
武汉长海电气科技开发有限公司，武汉 430073
4.
中国科学院合肥物质科学研究院等离子体物理研究所，合肥 230031

基金项目: 国家重大科技基础设施建设项目(2018-000052-73-01-001228)；国家重点研发计划项目(2017YFE0300500)；青年科学基金项目(11805134)

详细信息

作者简介:
胡星光，xghu@ipp.ac.cn

通讯作者:
李　航，lih@szu.edu.cn

中图分类号: TL629
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- 文章访问数: 759
- HTML全文浏览量: 320
- PDF下载量: 67
- 被引次数: 0
出版历程
- 收稿日期: 2021-12-08
- 修回日期: 2022-06-03
- 录用日期: 2022-06-16
- 网络出版日期: 2022-06-17
- 刊出日期: 2022-09-20

Test of 100kA vacuum circuit breaker based on artificial current zero for quench protection

Hu Xingguang^{1, 2
,},
Zhong Jike³,
Li Hua⁴,
Li Hang^{2
, ,},
Wu Muquan²

1.
College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518061, China
2.
Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, China
3.
Wuhan Changhai Electric Technology Development Co., Ltd, Wuhan 430073, China
4.
Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China

摘要

摘要: 在超导磁体电源系统中，失超保护系统具有重要的地位，能够将磁体能量迅速转移并消耗。聚变堆主机关键系统综合研究设施项目对失超保护系统提出了100 kA直流分断的技术要求，其中采用真空断路器作为转移支路开关。针对CRAFT失超保护系统，设计了串联结构的100 kA直流真空断路器并完成了样机制造。通过现场试验，在人工过零电路的配合下，所设计和制造的真空断路器完成了100 kA直流分断测试。
- 失超保护 /
- 真空断路器 /
- 串联结构 /
- 人工过零 /
- 直流分断
Abstract: Quench protection system plays an important role in superconducting magnet power supply system, as it can transfer and consume magnet energy rapidly. In the project of Comprehensive Research Facility for Fusion Technology (CRAFT), the technical requirement of breaking 100 kA direct current (DC) is proposed for the quench protection system, in which the vacuum circuit breaker is used as the switch of transfer branch. In this paper, a 100 kA DC vacuum circuit breaker with series structure is designed for the CRAFT project’s quench protection system, and the prototype is manufactured. In field test, with the cooperation of artificial zero-point circuit, the vacuum circuit has completed the 100 kA (DC) breaking test successfully.
- quench protection /
- vacuum circuit breaker /
- series structure /
- artificial zero crossing /
- DC breaking

HTML全文

图 1 CRAFT超导磁体失超保护系统示意图

Figure 1. Schematic diagram of quench protection system for CRAFT superconducting magnet

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图 2 失超保护系统控制逻辑与预期电流波形

Figure 2. Control logic and expected current waveform of quench protection system

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图 3 100 kA真空断路器样机

Figure 3. Prototype of 100 kA vacuum circuit breaker

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图 4 失超保护系统人工过零电路拓扑

Figure 4. Topology of artificial zero crossing circuit for quench protection system

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图 5 基于人工过零的100 kA真空断路器分断测试电路示意图

Figure 5. Breaking test circuit of 100 kA vacuum circuit breaker based on artificial zero crossing

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图 6 真空断路器电流分断试验现场

Figure 6. Current breaking test site of vacuum circuit breaker

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图 7 真空断路器分断100 kA电流波形

Figure 7. Waveform of vacuum circuit breaker breaking 100 kA current

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表 1 真空断路器用灭弧室主要参数（BGH6210）

Table 1. Main parameters of interrupter for vacuum circuit breaker (BGH6210)

rated voltage/kV	rated current/A	rated short-circuit breaking current/kA	rated short-time withstand current/kA	rated short circuit duration/s
18	6300	100	100	2

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表 2 分断测试电路部件参数

Table 2. Component parameters of breaking test circuit

capacitor of main discharge circuit C₀/mF	inductor of main discharge circuit L₀/μH	capacitor of artificial zero crossing circuit C₁/mF	inductor of artificial zero crossing circuit L₁/μH	buffer capacitor C₂/mF	energy dissipation resistor R_d/Ω
86.4	265	8.8	66	1	0.125

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