目前的参考增强策略赋予DC微电网中的GFC更好的动态响应.
Wenqiang Xie1, Xian Zheng2, Mingming Shi2
1State Grid Jiangsu Electric Power Co. LTD. Research Institute, Nanjing, 211100, China. bjxiewenqiang@163.com.
Scientific reports
|April 13, 2024
概括
一个新的基于观察者的非集成器干扰 (NIDOB) 策略改进了DC微电网的电压控制. 这种方法可以提高动态性能和短暂响应,而不会增加系统带宽或引入噪声.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 控制理论 控制理论
背景情况:
- 恒压策略 (CVS) 适用于容量小的直流微电网,但由于集成器延迟和负载步骤干扰,其动态性能较慢.
- 现有的先进方法来提高动态性能往往会增加系统带宽,这是由切换频率所限制的,并可能引入噪声.
研究的目的:
- 开发一种新的控制策略,加速瞬态响应并消除DC微电网中的集成器影响.
- 为了提高系统带宽内的收益,而不会影响噪音水平.
主要方法:
- 为DC微电网电压控制提出了一个基于观察者的非集成器干扰 (NIDOB) 策略.
- NIDOB策略将负载电流输入当前参考电流,取代集成器的输出.
- 将NIDOB与传统和非集成者直接前 (NIDF) 策略以及带宽增加方法进行了比较.
主要成果:
- 与传统策略和NIDF策略相比,NIDOB策略表现出优越的动态表现.
- 在没有引入额外的噪音的情况下,NIDOB实现了比带宽增加策略更好的动态性能.
- 理论分析和实验结果验证了拟议的NIDOB战略的优势.
结论:
- 基于观察者的非集成器干扰 (NIDOB) 策略为改善直流微电网电压控制动态提供了有效的解决方案.
- NIDOB增强了暂时响应并消除了集成器诱导的缓慢性,为现有方法提供了强大的替代方案.
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