摘要
针对含高渗透率光伏的联合发电系统优化运行问题,提出了联合系统协调优化模型。对含高渗透率光伏电场的联合发电系统差异性进行研究,分析得出运行优化特征;综合考虑常规机组燃料成本、启停成本、排污成本及弃光量,建立了以联合发电系统各供能主体的逐时出力与火电机组的启停变量为优化变量的目标函数,通过模型求解,实现联合发电系统的整体运行成本与弃光量最小的优化目标;所提出模型能够最大程度提高系统光伏电场接纳能力以及含高渗透率光伏发电电力系统的运行经济性。应用该模型对一个测试系统进行计算仿真和分析,结果证明了模型的适用性和有效性。
Aiming at the optimal operation of the combined power generation system with high permeability photovoltaic, this paper proposeda joint system coordination and optimization model. This paper researched on the difference of the joint generation system with highpermeability photovoltaic and obtained the operation optimization characteristics. Based on this, considering the conventional unit fuel cost,start and stop cost, sewage cost and the amount of discarded light, this paper established the objective functions taking the starting and stoppingvariables of time-dependent output and thermal power unit of main energy supply of combined operation system as the optimizationvariables. The solution method for model realized the optimal operation target of combined operation system and the minimum amount ofdiscarded light. The proposed model can improve the maximum capacity of the system photovoltaic system and the operating economy ofhigh-permeability photovoltaic power generation system. This model is used to carry out the system test and simulation analysis. The resultsverify the applicability and validity of the model.
出处
《电工电气》
2018年第1期23-26,59,共5页
Electrotechnics Electric
关键词
高渗透率光伏
联合发电系统
协调优化模型
逐时出力
high permeability photovoltaic energy
joint generation system
coordinated optimization model
time-dependent output
