市场环境下的事故备用容量

在电力市场环境下，对电网公司而言，其追求的最终目标是经济利益最大化，电力系统的安全可靠性服务于这一目标。针对这一变化，该文提出在电力市场环境下，为供需双方所乐于接受的供电中断不应认为是对系统安全可靠运行的破坏，处于种情况下的系统应该被认为是供电连续的，并在此基础上提出了市场环境下事故备用容量的确定应在综合考虑保留事故备用容量费用和切负荷赔偿费用的基础上，求取经济上最优的事故备用容量，数字仿真结果表明该方法可行，且具有较好的经济性。

RESERVE CAPACITY FOR ACCIDENT IN POWER MARKET ENVIRONMENT

In power market environment, the first goal of grid company is to maximize its profits, which is different from the traditional power system. The security and reliability of power system should be subordinate to this goal. This paper proposes that, in power market environment, the power interruption acceptable to both supply and demand sides should be regarded not as damage to secure and reliable operation, but as continuity of power supply. In this point of view, the paper proposes that the optimal accident reserve capacity (in economic sense) in power market environment should be determined in light of cost of accident reserve capacity and load-shedding. The simulated results of a reliability test system shows that the method is feasible and economic.