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首页> 外文期刊>Journal of Energy Storage >Comparative analysis of domestic and feeder connected batteries for low voltage networks with high photovoltaic penetration
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Comparative analysis of domestic and feeder connected batteries for low voltage networks with high photovoltaic penetration

机译：光伏渗透率高的低压网络家用电池和支线连接电池的比较分析

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Excessive voltage and power flow issues associated with domestic solar power are threatening UK distribution system operation and the use of energy storage is one method proposed to mitigate these issues. In this study a data orientated approach was taken in order to simulate the effect of the location of the energy storage on the low voltage network. A number of small (<15 kWh) domestic batteries were compared to a single larger (>50 kWh) feeder connected battery in terms of their ability to shave load demand peaks, fill load demand valleys and counter voltage violations on a typical radial feeder system. To achieve this MatLab was used to create dispatch strategies for each battery and introduce them into an aggregated load, and OpenDSS was then used to model this scenario on a typical UK radial feeder based on the IEEE European Low Voltage Test Case. It was found that the feeder connected battery was more successful at mitigating the thermal overload effects of distributed generation at the low voltage level. Domestic batteries offer ease of installation and consumer support, likely to make their utilisation increasingly inevitable. However, their exposure to domestic energy flows and focus on minimising grid import to the home led to a reduced network level impact. This work shows that a feeder connected battery can respond to the power flows of the aggregated load and thus provides a far more capable tool for reducing network peak loads and preventing feeder system export.
机译：与家用太阳能相关的过大电压和潮流问题正威胁着英国配电系统的运行，而建议使用储能来缓解这些问题。在这项研究中，采用了一种以数据为导向的方法，以模拟能量存储位置对低压网络的影响。将多个小型（<15 kWh）家用电池与单个大型（> 50 kWh）馈线连接的电池进行了比较，它们具有在典型的径向馈线系统上减少负载需求峰值，填充负载需求谷值和违反反电压的能力。为了达到这个目的，MatLab用于为每个电池创建调度策略，并将其引入总负载中，然后使用OpenDSS在基于IEEE欧洲低压测试案例的典型UK径向馈线上为该场景建模。已经发现，与馈线相连的电池在减轻低压下分布式发电的热过载影响方面更为成功。家用电池提供了易于安装和消费者支持的便利，很可能使它们的使用越来越不可避免。但是，它们暴露于家庭能源流中并专注于最大程度地减少向家庭的电网进口，从而降低了网络级的影响。这项工作表明，与馈线相连的电池可以响应总负载的功率流，从而为降低网络峰值负载并防止馈线系统输出提供了更强大的工具。

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