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针对华中电网存在的两层联络线功率控制模式,分析了特高压交流跨区联络线功率控制评价标准(T标准)与区域电网内省间联络线功率控制评价标准(CPS标准)特点,并结合特高压交流跨区联络线运行要求,分析了CPS标准下的省间联络线功率控制对跨区联络线功率波动的影响。通过对现有T标准与CPS标准中部分指标的改进,提出了一套新的区域电网互联下的省间联络线功率控制评价标准,使区域电网省间联络线功率控制与跨区联络线功率控制相互协调。
Aiming at the power control mode of two tie layers existing in Huazhong Power Grid, this paper analyzes the characteristics of power control evaluation standard (T standard) of UHV AC trans-regional tie line and power control evaluation standard (CPS standard) of inter-provincial interconnection line in regional power grid, combined with EHV AC cross-regional tie-line operation requirements, analysis of the CPS standard inter-provincial tie-line power control on the trans-regional tie line power fluctuations. Through the improvement of some of the existing T standards and CPS standards, a new set of evaluation criteria for power control of inter-provincial tie lines under the interconnection of regional power grids is proposed, so that the power control of inter-provincial tie lines and the inter-regional tie line power Control and coordination.