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随着新能源占比不断增加，新能源多场站短路比（Multiple Renewable Energy Stations Short Circuit Ratio，MRSCR）逐渐成为制约电网安全运行的重要指标。对MRSCR的主要影响因素及机理进行分析，结果表明，电网初始电压、近区新能源出力对MRSCR及暂态稳定均有不同程度的影响。从电网规划建设、生产运行等多角度探讨提升MRSCR的合理方法。提出应参考MRSCR指标进行新能源布点、线路选型，做好MRSCR专题计算分析工作，利用MRSCR估算电网强度、预算新能源消纳能力等建议，结合内蒙古电网近期规划网架，基于功率差异化控制原则，制订满足MRSCR安全约束的新能源出力优化措施，为释放新能源发电能力提供思路。
Abstract：With the continuous increasing proportion of new energy, the Multiple Renewable Energy Stations Short Circuit Ratio(MRSCR) has gradually become a critical indicator constraining power grid security. By analyzing key influencing factors and mechanisms of MRSCR, the results demonstrate that both the initial voltage of the power grid and nearby new energy output exert varying degrees of impact on MRSCR and transient stability. This paper explores practical approaches to enhance MRSCR from multiple perspectives including grid planning and construction, production and operation. It is proposed that MRSCR should be served as a reference index for new energy site selection and line selection, specialized MRSCR computational analysis should be conducted, and MRSCR should be used to estimate grid strength and predict renewable energy consumption capacity. Taking the recent grid planning framework of Inner Mongolian power system as an example, based on the principle of power differentiation control, new energy output optimization measures that meet MRSCR safety constraints should be formulated to provide innovative solutions for releasing renewable energy generation capacity.
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基本信息:
DOI：10.19929/j.cnki.nmgdljs.2025.0046
中图分类号:
引用信息:
[1]刘昭睿1,杨学涛2,齐关秋1,等.送端电网新能源多场站短路比提升技术研究[J],2025,43(4):30-37.DOI:10.19929/j.cnki.nmgdljs.2025.0046.
基金信息:
内蒙古自治区“揭榜挂帅”项目“新型电力系统‘网源荷储’关键调度技术及其示范应用”（2022JBGS0044）