多模式风光火储系统多目标优化调度  

Multi-objective Optimal Scheduling of Multi-mode Wind-solar-thermal Power Storage System

作　　者：吴庆泽 吕丽霞[1] 刘长良[1] 刘卫亮 WU Qingze;L Lixia;LIU Changliang;LIU Weiliang(School of Control and Computer Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学控制与计算机工程学院,河北保定071003

出　　处：《华北电力大学学报（自然科学版）》2024年第5期100-107,117,共9页Journal of North China Electric Power University：Natural Science Edition

基　　金：中央高校基本科研业务费专项资金资助项目(2019MS100).

摘　　要：风光发电具有波动性和随机性,大规模并入电网影响电力系统的稳定性、安全性。建立考虑火电机组深度调峰和电储能寿命折损成本的风光火储能源系统模型,提出负荷跟踪、功率平滑两种出力模式。以风光火储各子系统出力为决策变量,建立了一种以风光火储能源系统运行成本最低、新能源消纳最多、环保性最好为目标的优化调度模型。通过NSGA-Ⅱ算法分别求解两种模式的调度模型,得到帕累托解集,最后基于AHP决策方法确定最优调度方案,实现能源系统出力跟踪负荷、能源系统功率平滑的功能,降低风光发电并入电网带来的冲击。仿真计算结果表明两种模式下的调度策略可以提高风光火储能源系统的经济性,增强新能源消纳能力,减少污染性气体排放,验证了优化调度模型的有效性。Characterized by volatility and randomness,wind-solar power generation can affect power system stability and safety after its large-scale integration into power grid.We established a model of wind-solar-thermal power storage system considering deep peak load changing of thermal power generating unit and energy storage life collapse cost and proposed load tracking and power smoothing output modes.Taking each subsystem output of wind-solar-thermal power storage as the decision variable,we established an optimal scheduling model aiming at the lowest operation cost,the most dissipation of new energy,and the optimal environmental protection.And we solved the dispatching model of NSGA-Ⅱ algorithm to obtain pareto solution set.Finally,we used AHP decision method to determine the optimal dispatching scheme,realized output tracking loading and energy system power smoothing of energy system,and reduced the effect caused by the integration.The simulation results show that the scheduling strategy under two modes can improve the economy of wind-solar-thermal power storage system and the new energy dissipation capacity,reduce polluted gases emission,which verifies the effectiveness of the optimal scheduling model.

关 键 词：风光火储能源系统 负荷跟踪 功率平滑 优化调度 NSGA-Ⅱ AHP 

分 类 号：TM73[电气工程—电力系统及自动化]