精确的主动和反应电力共享基于对岛屿微电网进行修改的垂落控制方法
Zhi Zhang1, Sheng Gao1, Caomao Zhong2
1Department of Electrical Engineering and Automation, Dongguan University of Technology, Dongguan 523808, China.
Sensors (Basel, Switzerland)
|July 29, 2023
概括
本研究提出了对岛屿微电网的修改后的降落控制,使分布式发电 (DG) 单元在没有通信的情况下能够准确地共享电力. SACS注入方法通过调整DG电压幅度来确保精确的活性和反应功率分配.
科学领域:
- 电气工程 电气工程
- 电力系统工程 电力系统工程
- 控制系统 控制系统
背景情况:
- 在岛屿微电网中,传统的垂落控制因不匹配的料阻抗而难以准确地分配电力.
- 分布式发电 (DG) 单元需要精确的电力共享,以实现稳定的微电网运行.
研究的目的:
- 制定修改后的降落控制策略,以便在岛屿微电网的总局单位之间准确地进行主动和反应电力共享.
- 为了解决在存在不匹配的料阻抗时常规垂落控制的局限性.
主要方法:
- 建议采用基于小交流信号 (SACS) 注射的修改下垂控制方法.
- 控制策略通过注入的交流信号来调整DG电压幅度,以创建一个反应功率控制循环.
- 该方法仅依赖于本地信息,不需要通信链路或料阻抗参数.
主要成果:
- 拟议的控制方案实现了总局各单位之间准确的主动和反应功率共享.
- 模拟和实验结果验证了SACS注射方法的有效性.
- 该策略成功地克服了不匹配的料阻抗所带来的挑战.
结论:
- 基于SACS注射的修改下降控制为岛屿微电网中精确的电力共享提供了有效的解决方案.
- 这种方法提高了微电网的稳定性和效率,通过确保总局各单位之间公平的电力分配.
- 该方法依赖本地信息简化了实施,并减少了对外部通信基础设施的依赖.
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