在低压直流微电网中优化电力共享精度,考虑到不匹配的线路电阻
Samir A Hamad1, Mohamed Ali Ghalib2, Mahmoud F Elmorshedy3,4
1Process Control Technology Department, Faculty of Technology and Education, Beni-Suef University, Beni-Suef, Egypt.
Scientific reports
|December 5, 2024
概括
本研究介绍了DC微电网 (DCMGs) 的自适应性下降控制,以改善并行转换器中的负载共享和总线电压调节. 这种新方法比传统方法提高了性能.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 控制系统 控制系统
背景情况:
- 在直流微电网 (DCMGs) 中的平行直流直流转换器在负载共享,循环电流和总线电压调节方面面临挑战.
- 传统的掉落控制器为电流共享提供了简单性,但损害了电压调节,并由于固定掉落参数引入了共享错误.
研究的目的:
- 为DCMGs引入适应性和简单的垂落控制机制.
- 为了提高并行直流-直流转换器中总线电压调节和负载共享性能.
- 为了减轻总线电压偏差,使用移动垂线的二次控制循环来减轻总线电压偏差.
主要方法:
- 开发一种自适应性垂落控制算法,以估计最佳垂落参数.
- 实现用于动态总线电压调节的二次控制循环.
- 在不同的输入电压和负载条件下,对拟议方法与传统的垂落控制进行比较分析.
主要成果:
- 与传统方法相比,自适应式掉落控制在负载分配准确性方面表现出优异的性能.
- 实现了增强的总线电压调节,在动态操作条件下保持稳定性.
- 二级循环有效地减轻电压偏差,确保可靠的DCMG运行.
结论:
- 拟议的自适应性垂落控制机制显著改善了DCMG中的负载共享和总线电压调节.
- 这种方法提供了一个强大的解决方案,可以提高并行直流-直流转换器系统的稳定性和效率.
- 适应性方法比传统的垂落控制提供了更好的性能,特别是在动态负载和电压变化下.
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