中国电机工程学报Issue(34)：136-144,9.
风水火系统长期优化调度方法
A Long-term Optimal Scheduling Method for Wind-hydro-thermal Power Systems
摘要
Abstract
The optimal dispatching of wind-hydro-thermal power system including cascade hydropower stations plays an important role in reducing coal consumption and improving the utilization of clean energy. However, the differences and complementarity of the power generating characteristics, and many uncertain factors need to be considered in this problem and it is difficult to model and solve the long-term scheduling. In this paper, the long-term optimal scheduling model of wind-hydro-thermal system was established, in which, the maintenance effects and the complex constraints were considered and all of the coupled hydraulic, wind, thermal and electricity constraints were included. To reduce the solving difficulty, the above large-scale, multi-constrained, nonlinear optimization problem was converted into a mixed integer linear model. And the point estimate method was introduced to handle the randomness of runoff and wind speed during each period. By means of this method, the estimated points of the random variables were set up, and then the long-term optimal scheduling model was solved with each estimated point vector, thus the expected value of the optimal scheduling decision variables was obtained. Case studies show that the proposed scheduling method has the performance of high precision, rapid solving speed, and can easily deal with uncertainties.关键词
风水火/调度/长期/线性混合整数/点估计Key words
wind-hydro-thermal/long term/optimal scheduling/mixed integer linear/point estimate method分类
信息技术与安全科学引用本文复制引用
葛晓琳,张粒子,舒隽..风水火系统长期优化调度方法[J].中国电机工程学报,2013,(34):136-144,9.基金项目
国家自然科学基金项目(51277071) （51277071）
Project Supported by National Natural Science Foundation of China (51277071) （51277071）
