首页> 外文期刊>Power Electronics, IET >A control strategy to enhance the life time of the battery in a stand-alone PV system with DC loads
【24h】

A control strategy to enhance the life time of the battery in a stand-alone PV system with DC loads

机译:在带有直流负载的独立光伏系统中延长电池寿命的控制策略

获取原文
获取原文并翻译 | 示例
           

摘要

This study proposes a unique control strategy to enhance the life time of the battery in a stand-alone photovoltaic (PV) system employing energy storage devices such as battery and super capacitor. The intermittent fluctuations in PV power and load power affect the DC bus voltage leading to a random and frequent charging/discharging profile of the battery since the controlling converters are operated as constant voltage sources. To overcome this drawback, the supercapacitor converter is commanded as a constant voltage source so as to adapt to varying load conditions and the battery converter is commanded as a constant current source. This strategy helps to decouple the power imbalances from the charge-discharge profile of battery, thereby contributing to the improved battery life. The detailed experimental results are presented. Further, the proposed control strategy is tested and validated under various scenarios.
机译:这项研究提出了一种独特的控制策略,以延长采用诸如电池和超级电容器等储能设备的独立光伏(PV)系统中电池的使用寿命。 PV电源和负载电源的间歇性波动会影响DC总线电压,从而导致电池的随机且频繁的充电/放电曲线,因为控制转换器作为恒定电压源运行。为了克服该缺点,命令超级电容器转换器作为恒定电压源,以适应变化的负载条件,并且命令电池转换器作为恒定电流源。这种策略有助于将功率不平衡与电池的充放电曲线解耦,从而有助于延长电池寿命。给出了详细的实验结果。此外,在各种情况下对提出的控制策略进行了测试和验证。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号