杨子龙, 宋振浩, 潘静, 陈卓, 王一波. 分布式光伏/储能系统多运行模式协调控制策略[J]. 中国电机工程学报, 2019, 39(8): 2213-2220,4. DOI: 10.13334/j.0258-8013.pcsee.182342
引用本文: 杨子龙, 宋振浩, 潘静, 陈卓, 王一波. 分布式光伏/储能系统多运行模式协调控制策略[J]. 中国电机工程学报, 2019, 39(8): 2213-2220,4. DOI: 10.13334/j.0258-8013.pcsee.182342
YANG Zi-long, SONG Zhen-hao, PAN Jing, CHEN Zhuo, WANG Yi-bo. Multi-mode Coordinated Control Strategy of Distributed PV and Energy Storage System[J]. Proceedings of the CSEE, 2019, 39(8): 2213-2220,4. DOI: 10.13334/j.0258-8013.pcsee.182342
Citation: YANG Zi-long, SONG Zhen-hao, PAN Jing, CHEN Zhuo, WANG Yi-bo. Multi-mode Coordinated Control Strategy of Distributed PV and Energy Storage System[J]. Proceedings of the CSEE, 2019, 39(8): 2213-2220,4. DOI: 10.13334/j.0258-8013.pcsee.182342

分布式光伏/储能系统多运行模式协调控制策略

Multi-mode Coordinated Control Strategy of Distributed PV and Energy Storage System

  • 摘要: 针对储能电站在现有配置下运行模式单一且不能充分发挥储能作用的问题,该文提出一种混合储能系统在平抑功率波动和峰谷电价套利2种模式下协调运行控制策略。平抑功率波动模式中,利用小波包分解对储能系统内部功率进行一次分配,并结合储能装置的荷电状态信息对一次功率进行修正,实现功率二次分配。峰谷电价套利模式中,依据分时电价和荷电状态信息确定储能系统充放电起止时刻,根据负荷实际大小确定其充放电功率实现用电负荷的经济运行。根据光伏实时波动情况,结合储能装置荷电状态信息,设计了2种运行模式的协调运行策略,实现源/网/荷/储能量的合理管理。在Matlab中搭建仿真模型验证了所提控制策略的准确性和实用性,并将控制策略应用到工程现场。

     

    Abstract: Aiming at the problem that the energy storage station has a single operation mode under the existing configuration and cannot fully utilize the energy storage function, this paper presented a novel control strategy which combines smoothing photovoltaic fluctuation mode and peak-valley electricity price arbitrage mode. For the mode of smoothing photovoltaic fluctuation, the internal power of the energy storage system is initially allocated by wavelet packet decomposition, and then combined with the state of charge of the energy storage device, the primary power is adjusted to realize power redistribution. For the mode of peak-valley electricity price arbitrage, according to the time-of-use price and state of battery charge information, the charging and discharging start and stop time of the energy storage system is determined, and then the charging and discharging power is determined according to the actual size of the load to realize the economic operation of the power load. According to the real-time fluctuation of PV, combined with the state of charge of the energy storage device, a coordinated operation strategy of two operating modes was designed to realize the reasonable management of source/network/load/storage energy. Finally, a simulation model was built in Matlab to verify the accuracy and practicability of the proposed control strategies, and then applied those strategies to the demonstration project.

     

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