在异步电网互连中基于VSC的HVDC系统的性能评估:离线和实时验证控制设计,以对称的最佳PI调
Adesh Kumar Mishra1, Saurabh Mani Tripathi2, Omveer Singh1
1Department of Electrical Engineering, Gautam Buddh University, Greater Noida, 201312, U.P, India.
Heliyon
|August 22, 2024
概括
优化比例整合 (PI) 控制器参数,使用基于电压源转换器的高压直流 (VSC-HVDC) 系统,使交流电网的高效异步互连成为可能. 实时验证证实了增强电网集成的快速动态性能.
科学领域:
- 电气工程 电气工程
- 电力系统工程 电力系统工程
- 整合可再生能源的整合
背景情况:
- 不同频率 (50 Hz/60 Hz) 的交流网络的异步互连对于集成分布式发电,如离岸可再生能源至关重要.
- 现有的电网配置需要先进的解决方案,以跨越频率障碍的无电力传输,提高电网稳定性.
- 高压直流 (HVDC) 传输,特别是使用电压源转换器 (VSC),为异步互连提供了一种高效的方法.
研究的目的:
- 在20MVA的VSC-HVDC系统中优化比例整合 (PI) 控制器参数,以实现异步互连.
- 为了评估向量控制方法的性能,对VSC-HVDC系统进行对称的最佳PI调.
- 通过离线模拟和实时硬件在循环 (HIL) 测试来验证拟议的控制策略.
主要方法:
- 在 MATLAB/Simulink 中实现一个 VSC-HVDC 系统模型.
- 应用一个带有对称最佳PI调的矢量控制策略,以优化控制器参数.
- 使用四个不同的测试案例进行性能评估,模拟功率参考和直流电压的动态变化.
- 使用台风HIL604硬件平台进行实时验证.
主要成果:
- 离线模拟和实时HIL验证在各种操作条件下显示出快速且令人满意的动态响应.
- 优化的PI控制器参数确保了在异步互连场景中稳定和高效的功率传输.
- 对称的最佳调方法在实现VSC-HVDC系统的强大性能方面被证明是有效的.
结论:
- 拟议的控制设计具有对称的最佳PI调,有效地提高了用于异步互连的VSC-HVDC系统的性能.
- 经过验证的控制策略确保了在不同频率运行的离岸和陆上交流网络之间可靠的电力交换.
- 这种方法有助于提高电网可靠性和稳定性,促进可再生能源的整合.
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