风水火联合电力系统动态优化调度
摘要：针对风电反调峰特性与预测偏差,提出风水火联合电力系统的动态优化调度模型,采用分层策略进行优化。即划分为以下三层:避免火电冗余及低负荷运行的火电开机方式优化层,使水电在平抑负荷与风电波动同时尽可能多承担负荷的水电调峰优化层,计及调度周期内各时刻风电预测偏差产生的附加成本并使系统总成本最小的风火电优化层。利用跟踪中心轨迹内点法对二、三层进行优化求解。对含一风电场和多水电站的电网算例进行仿真验证,结果表明,所提优化模型和方法为风水火联合电力系统的动态优化调度提供了一种有效方法。
Abstract:As to such features of wind power as counter peak-shaving and prediction deviation, a dynamic optimal dispatch model of power system combined with wind power, hydro power and thermal power is proposed, which can be optimized by hierarchical scheme. It is solved by layered optimization such as thermal power start-up mode optimization layer which can avoid redundancy and low-load operation of thermal power, hydropower peak-shaving optimization layer which can undertakes load as far as possible while restraining the load and the fluctuation of wind farm, and wind-thermal power optimization layer which takes into account the additional cost from prediction deviation of wind power at different period and makes the total cost of system minimum. And tracking center locus interior point method is used to solve the second and third optimization layers. The proposed models are validated by the simulation results based on a power grid containing a wind farm and several hydropower stations. Simulation results show that proposed optimized model and method offer an effective approach to solve dynamic optimal dispatch of power system combed with wind power, hydro power and thermal.
标题：风水火联合电力系统动态优化调度
英文标题：Dynamic Optimal Dispatch of Wind-hydro-thermal Power System
作者：张程翔, 刘天琪, 卜 涛,
关键词：风力发电, 动态优化调度, 水电调峰, 风水火联合电力系统, 分层优化,
发表日期：2017-08-09
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