| 基于多电平拓扑技术的新型柔性励磁系统 |
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| 引用本文： | 吴跨宇,张建承,吴龙,韩兵,房乐,卢岑岑,熊鸿韬. 基于多电平拓扑技术的新型柔性励磁系统[J]. 中国电力, 2019, 52(11): 100-106. DOI: 10.11930/j.issn.1004-9649.201809077 |
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| 作者姓名： | 吴跨宇 张建承 吴龙 韩兵 房乐 卢岑岑 熊鸿韬 |
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| 作者单位： | 1. 国网浙江省电力有限公司电力科学研究院, 浙江 杭州 310007;2. 南京南瑞继保电气有限公司, 江苏 南京 211102 |
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| 摘 要： | 针对新一代电力系统发展趋势对发电机励磁控制和机组支撑能力的新需求，设计了一种基于三电平电压源型变换器的新型柔性励磁系统，并提出了与之匹配的新型五电平直流斩波电路，分析了励磁电流双向6管和励磁电流单向3管2种直流斩波电路的控制模式和运行特性。基于PSCAD构建柔性励磁仿真模型，分析验证了五电平斩波拓扑结构应用于发电机励磁控制的可行性及相对于常规自并励励磁系统的控制性能优势。
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| 关 键 词： | 多电平拓扑 柔性励磁 三电平变换器 五电平斩波器 |
| 收稿时间： | 2018-09-20 |
| 修稿时间： | 2019-07-31 |
Novel Flexible Excitation System Based on Multilevel Topology Technology |
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| WU Kuayu,ZHANG Jiancheng,WU Long,HAN Bing,FANG Le,LU Cencen,XIONG Hongtao. Novel Flexible Excitation System Based on Multilevel Topology Technology[J]. Electric Power, 2019, 52(11): 100-106. DOI: 10.11930/j.issn.1004-9649.201809077 |
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| Authors: | WU Kuayu ZHANG Jiancheng WU Long HAN Bing FANG Le LU Cencen XIONG Hongtao |
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| Affiliation: | 1. State Grid Zhejiang Electric Power Research Institute, Hangzhou 310007, China;2. NR Electric Co., Ltd., Nanjing 211102, China |
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| Abstract: | Based on the development trend of the next generation power system, a novel flexible excitation system is designed based on three-level voltage source converter, and a matching five-level DC chopping circuit is proposed. An analysis is made of the controlling mode and performance of two DC chopping circuits with excitation current 6-IGBT or 3-IGBT. A simulation model of flexible excitation system is built based on PSCAD. The feasibility of the flexible excitation system with proposed five-level chopping topology and the control performance advantage over conventional self-shunt excitation are analyzed and verified. |
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| Keywords: | multilevel topology flexible excitation three-level voltage source converter five-level chopper |
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