基于风险的联络线过载问题预防和紧急协调控制量确定方法研究

Method to Obtain Quantity of Preventive Control and Emergency Control for Overload Problems of Tie Lines Based on Risk

分析了国务院599号令对稳控措施的影响,在599号令的基础上,结合特高压入湘的规划计算数据,利用风险的概念,建立了社会经济损失指标,并以该指标最小为目标函数,结合时域仿真法对实际网络的仿真结果,提出了一种针对联络线过载问题的预防控制量和紧急控制量的近似计算方法。通过对湘鄂交流联络线的过载问题的仿真,结果表明,该方法确定的控制量消除了可能发生的过载问题,有一定的工程实用价值。

The paper analyzes the influence of the Rule 599 on stability control, and proposes an index describing socio-economic loss based on the concept of risk. Using the index and the results of an actual network by time domain simulation method to fix the overload problems of AC tie lines, the paper builds a minimum objective function to solve the optimum approximate quantity of preventive control and emergency control based on the Rule 599 and calculation data including UHV lines which are to be built in Hunan. By simulations for the AC tie lines between Hunan and Hubei, the quantity of the preventive control and emergency control decided in this paper resolves the possible overload problems.