| 大规模风电接入对电力系统暂态稳定性影响机理研究 |
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| 引用本文： | 汤蕾,沈沉. 大规模风电接入对电力系统暂态稳定性影响机理研究[J]. 电力科学与技术学报, 2014, 0(4): 25-33 |
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| 作者姓名： | 汤蕾 沈沉 |
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| 作者单位： | 清华大学 电机系,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划(“863计划”) |
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| 摘 要： | 根据双馈风机的暂态特性,详细分析将双馈风机视为恒功率源的可行性,并提出相关限制条件。分析风电机组接入引起潮流分布和系统惯量变化的2种情景,即通过减少同步机出力以平衡新增风电、停运部分同步机组平衡风电;并在此基础上,基于直流潮流模型和等面积定则,分析风电接入后对电力系统暂态稳定性的影响机理。最后,通过仿真分析验证该暂态稳定机理的正确性。
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| 关 键 词： | 双馈风机 暂态稳定机理 等面积定则 直流潮流 |
The impact of large-scale wind generation on power system transient stability |
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| TANG Lei,SHEN Chen. The impact of large-scale wind generation on power system transient stability[J]. JOurnal of Electric Power Science And Technology, 2014, 0(4): 25-33 |
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| Authors: | TANG Lei SHEN Chen |
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| Affiliation: | (Department of Electrical Engineering, Tsinghua University, Beijing 100084, China) |
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| Abstract: | According to transient characteristics of a doubly fed induction generator （DFIG）,the feasibility and limitation of regarding a DFIG as a constant power source was analyzed.And this paper analyzed two changes scenarios of power flow and inertia distribution resulted by wind inte-gration in power systems.They are （1）wind power generation lowers down synchronous genera-tion with the system inertia no change;（2）wind power generation makes some synchronous gen-erators offline,therefore changes the power flow and the system inertia at the same time.In view of the above two scenarios,based on DC power flow and equal area rule,this paper studied the mechanism that large-scale wind generation impacted on power system transient stability.Finally,simulation results showed that the transient stability mechanism was with high validity. |
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| Keywords: | doubly fed induction generator (DFIG) transient stability mechanism equal area rule DC power flow |
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