发电市场预调度计划模型及算法的研究

结合中国发电市场的实际情况，根据最优潮流原理，以整个预调度周期内的市场购电费用（MPC）最小为目标，建立了预调度计划模型，并根据预调度计划的特点，将模型目标简化为各时段的市场清算电价（MCP0最小，同时设计了三段式预调度算法：用静态规划法求解整个顶调度计划周期内的优化问题，用优先级求解机组组合问题，用改进的Powell法求解最优潮流问题。算例结果表明，预调度模型和算法下的市场清算电价能跟踪系统负荷变化，且该模型算法具有复杂度低、结果最佳性较好的特点。

STUDY ON MODEL AND ALGORITHM OF PRE-DISPATCH SCHEDULE IN POWER GENERATION MARKET

Considering the practical condition in China, a model of pre dispatch schedule based on optimal power flow (OPF) is proposed, whose target is to minimize the market purchasing cost (MPC) in the whole pre dispatch period. Further, according to the characteristics of pre dispatch schedule, the target of the model is simplified. The process of scheduling is converted to the minimization of market clearing price (MCP) in every time section, and a three step algorithm of pre dispatch schedule is designed, which deals with the optimal problem in the period of pre schedule dispatch with static planning method. It solves the problem urint combination with priority method, resolving problem of OPF with modified Powell method. An example of pre dispatch schedule is calculated using NETOMAC. The results show that the MCP computed by this model and algorithm can follow the tracks of the load of system, and this pre dispatch schedule model and algorithm possess the characteristics of low complexity and good optimum results.