Battery Energy Storage for increasing stability and reliability of an isolated wind diesel power system
Battery Energy Storage for increasing stability and reliability of an isolated wind diesel power system
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DOI：
10.1049/iet-rpg.2016.0220
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发表时间：
2017-04
影响因子：
2.6
通讯作者：
R. Sebastián
中科院分区：
文献类型：
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作者：
R. Sebastián
风柴油发电系统 (WDPS) 是将柴油发电机 (DG) 与风力涡轮发电机 (WTG) 结合在一起的隔离微电网。本研究中建模的 WDPS 由一台 275 kW-WTG、一台 300 kVA-DG、一个 240 V/390.625 Ah 镍氢电池储能系统 (BESS) 和用户负载组成。考虑的 WDPS 工作模式有：风柴油 (WD) 模式（DG 和 WTG 均供电）和纯风 (WO) 模式（仅 WTG 产生有功功率）。首先，描述了所列举的 WDPS 组件的动态模型。然后，研究了 WD 和 WO 模式下的 WDPS 控制要求，并提出了一种控制消耗/提供的 BESS 有功功率的控制系统。最后，对 WDPS 进行仿真，并显示系统频率和电压、每个组件的有功功率以及电池电流/电压/充电状态的图表。仿真涵盖：WD 模式（其中 BESS 过滤负载和 WTG 功率变化并避免 DG 反向功率情况）、WD 至 WO 模式转换（其中 BESS 实现无扰动转换）以及 WO 模式（其中 BESS 调节系统频率）。仿真表明，BESS 提高了 WDPS 的稳定性、可靠性和安全性。
Wind-diesel power systems (WDPS) are isolated microgrids which combine diesel generators (DGs) with wind turbine generators (WTGs). The WDPS modelled in this study consists of one 275 kW-WTG, one 300 kVA-DG, a 240 V/390.625 Ah Ni-MH battery energy storage system (BESS) and consumer load. The WDPS working modes considered are: Wind Diesel (WD) mode where both the DG and WTG supply power and wind-only (WO) mode where only the WTG produces active power. First, the dynamic models of the enumerated WDPS components are described. Then, WDPS control requirements in WD and WO modes are studied and a control system to govern the consumed/supplied BESS active power is presented. Finally, the WDPS is simulated and graphs of the system frequency and voltage, active power in each component and the battery current/voltage/state of charge are shown. The simulations cover: the WD mode, where it is shown that the BESS filters the load and WTG power variations and avoids a DG reverse power situation, the WD to WO mode transition where the BESS makes possible a bumpless transition and the WO mode where the BESS regulates the system frequency. Simulations demonstrate that the BESS increases the WDPS stability, reliability and security.