小信号稳定性分析和基于MOSMA的OWF优化控制策略,使用MMC-HVDC电网连接
Jie Zheng1,2, Hui Li1, Bo Zhang1
1State Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, China.
Sensors (Basel, Switzerland)
|January 11, 2024
概括
本研究涉及与模块化多层转换器 (MMC-HVDC) 连接的海上风电场中的更广泛频段振荡. 改进的控制策略提高了系统稳定性,降低了振荡风险.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 整合可再生能源的整合
背景情况:
- 通过模块化基于多层转换器的HVDC (MMC-HVDC) 系统连接的海上风电场 (OWF) 在更广泛的频段中经历了振荡事件.
- 这种现象使小信号相互作用分析和稳定性控制复杂化.
- 现有的方法很难有效地应对这些宽带振荡.
研究的目的:
- 研究MMC-HVDC连接的OWF中的宽带动态交互机制.
- 开发一种改进的控制策略,以提高小信号稳定性和减轻振荡风险.
- 提高连接到电网系统的宽带阻尼能力和适应性.
主要方法:
- 建立了连网系统的详细阻抗模型,包括海底电缆特性,控制延迟和频率合.
- 使用主动减噪控制和阻抗稳定性标准来分析宽带共振和导出稳定性约束.
- 改进的多目标粘液模具算法 (MOSMA) 用于协调优化控制参数.
主要成果:
- 该研究成功分析了宽带动态相互作用机制和共振现象.
- 控制器参数的稳定性约束用阻抗分析来确定.
- 拟议的基于MOSMA的控制策略显示了增强的适应性和宽带缓冲能力.
结论:
- 开发的阻抗模型和稳定性分析为理解宽带振荡提供了强大的框架.
- 基于MOSMA的协调优化控制战略有效地提高了MMC-HVDC连接的OWF的宽带稳定性.
- 模拟和实验结果验证了拟议的控制策略在提高系统性能和可靠性的有效性.
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