| 多端直流系统接线和控制方式对暂态稳定性的影响 |
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| 引用本文： | 于汀,胡林献,姜志勇. 多端直流系统接线和控制方式对暂态稳定性的影响[J]. 电网技术, 2010, 0(2) |
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| 作者姓名： | 于汀 胡林献 姜志勇 |
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| 作者单位： | 哈尔滨工业大学电气工程及自动化学院; |
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| 摘 要： | 分析了多端直流系统的接线方式对暂态稳定性的影响。研究结果表明,与并联型接线方式相比,串联型接线方式的多端直流系统无功需求大、有功损耗多,使暂态过程中交流功率和直流功率的传输比较困难,不利于维持交直流系统的暂态稳定性。以并联型接线方式为例,研究了多端直流系统的控制方式对暂态稳定性的影响,指出了定电流控制和定电压控制可以在暂态期间减缓换流器交流母线电压的下降,有利于防止直流功率的降低,所以其保持暂态稳定性的能力要好于定功率控制和定熄弧角控制。
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| 关 键 词： | 多端直流系统 暂态稳定性 接线方式 控制方式 |
Impacts of Connection and Control Modes of Multi-Terminal DC Power Transmission System on Transient Stability |
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| YU Ting,HU Lin-xian,JIANG Zhi-yong. Impacts of Connection and Control Modes of Multi-Terminal DC Power Transmission System on Transient Stability[J]. Power System Technology, 2010, 0(2) |
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| Authors: | YU Ting HU Lin-xian JIANG Zhi-yong |
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| Affiliation: | School of Electrical Engineering and Automation;Harbin Institute of Technology;Harbin 150001;Heilongjiang Province;China |
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| Abstract: | The impacts of the connection mode of multi-terminal DC (MTDC) power transmission system on transient stability are analyzed. Research results show that different from parallel connection mode the MTDC system adopting in-series connection mode needs more reactive power and its active power loss is greater, thus the transmission of active and reactive power is more difficult during transient process, so such a connection mode is unfavorable for keeping transient stability of AC/MTDC power system. Taking in-s... |
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