| 引用本文: | 杨洋,王瑶,李浩涛,等.子模块混合型LCC-MMC混合直流输电系统的启动控制策略[J].电力系统保护与控制,2018,46(8):58-64.[点击复制] |
| YANG Yang,WANG Yao,LI Haotao,et al.Start-up control strategies for the cell-hybrid LCC-MMC hybrid HVDC system[J].Power System Protection and Control,2018,46(8):58-64[点击复制] |
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| 子模块混合型LCC-MMC混合直流输电系统的启动控制策略 |
| 杨洋,王瑶,李浩涛,罗恩博,贾轩涛,郝俊芳,严兵,孔令凯,张群 |
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| (云南电网有限责任公司电力科学研究院，云南 昆明 650011;许继电气股份有限公司，河南 许昌 461000;国网浙江省电力公司检修分公司，浙江 杭州 310018) |
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| 摘要: |
| 为了充分发挥电网换相换流器(LCC)和模块化多电平换流器(MMC)各自的优势，并使MMC具有直流故障穿越能力，研究了一种新型LCC-MMC混合直流输电系统。该系统主要特点是整流侧采用传统LCC，逆变侧采用由半桥子模块、全桥子模块和箝位双子模块构成的混合型MMC，具有可过调制运行和直流故障穿越的功能。重点分析了此种混合直流输电系统的启动过程，并给出了LCC和MMC的启动控制策略。最后，在物理动模混合直流输电试验系统上进行了验证，结果表明了该启动策略的可行性和有效性。 |
| 关键词: 混合直流输电 混合子模块 子模块充电 启动控制 动模系统 |
| DOI：10.7667/PSPC170479 |
| 投稿时间：2017-04-05修订日期：2017-10-29 |
| 基金项目:国家重点基础研究发展计划“高压大容量柔性直流输电系统关键技术与工程示范” |
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| Start-up control strategies for the cell-hybrid LCC-MMC hybrid HVDC system |
| YANG Yang,WANG Yao,LI Haotao,LUO Enbo,JIA Xuantao,HAO Junfang,YAN Bing,KONG Lingkai,ZHANG Qun |
| (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650011, China;XJ Electric Co., Ltd., Xuchang 461000, China;Maintenance Branch of State Grid Zhejiang Electric Power Company, Hangzhou 310018, China) |
| Abstract: |
| In order to fully exert the advantages of LCC and MMC and enable the MMC to have DC fault ride through capability, this paper researches a new LCC-MMC hybrid HVDC system. The system uses traditional LCC in the rectifier side and cell-hybrid MMC in the inverter side. The MMC consists of half-bridge sub-module, full-bridge sub-module and clamp-double sub-module, and has the function of over modulation working and DC fault pass through. It emphatically analyzes the start-up process of the hybrid HVDC system, and then offers the start-up control strategies of the LCC and VSC. Finally, the experimental verification on the built 24 kW hybrid HVDC system indicates that this start-up strategies is feasible and available. This work is supported by National key Research and Development Program of China “key technology research and demonstration of high-voltage large-copality flexiblex DC grid”. |
| Key words: hybrid HVDC cell-hybrid sub-module charging start-up control dynamic simulation system |
