基于图形逻辑分析的光伏储能系统能量管理方法

考虑现阶段市场普遍采用的峰谷分时阶梯电价机制,该文给出一种基于图形逻辑分析方法,以应用双向逆变器的光伏储能系统用户日用电消费最低为目的创新型能量管理方法。该方法通过分析每日用户用电量与光伏发电量,储能系统状态,结合现行电价与光伏补贴价格,设计光伏储能系统电能的合理流动及控制算法。利用电力公司的用户用电量、光伏发电量数据及上海市实际电价,验证该图形逻辑分析方法的有效性。计算表明在该方法控制下用户日用电消费明显降低;运算速度在相同仿真计算平台下,相比于普通寻优方法显著提高。

A NEW ENERGY MANAGEMENT METHOD FOR PV-STORAGE SYSTEM BASED ON GEOMETRICAL AND LOGICAL ANALYSIS METHODOLOGY

Considering of popular time-of-use tariff at present market and based on geometrical and logical analysis methodology,a novel energy management method on PV-storage system with bi-directional inverter is proposed in this paper,which aims at obtaining lowest expense on daily electric power from the grid. By analyzing the daily electricity requirement,energy storage state,current electricity price and PV subsidized price,the reasonable floatation value and control method of electric power in the PV-storage system is designed. With electricity demand and PV generation data and real adopted tariffs in Shanghai,the effectiveness of the control strategy has been verified. The results show that customer daily expense electricity from grid obviously decreases which is very close to the minimum value from another complex intelligent algorithm. The computation speed is significantly improved compared with the common search algorithm under the same simulation platform.