励磁系统控制关键技术与未来展望

我国电力系统正向着高比例可再生能源和高比例电力电子设备的“双高”方向发展,电源和电网结构均发生重大变化。发电机励磁系统控制技术对保证电力系统安全、稳定运行意义重大,其性能提升是应对上述挑战最经济有效的技术手段之一。回顾了励磁系统控制的发展历史,提出了“双高”系统带来的技术挑战,并进一步提出了挖掘并提升励磁系统涉网性能的关键技术,包括励磁控制装置实验室涉网性能检测、现场试验测试与评价、励磁系统控制精细化仿真建模、附加稳定控制、辅助控制策略优化等。最后,对未来励磁系统控制技术的研究热点与发展方向进行了展望。

Key Technologies and Future Prospects of Excitation System Control

In China,the power system has been developed toward the direction of high penetration of renewable energy plus high penetration of power electronic equipment(double high),which results in major challenges in the structure of power and grid.Generator excitation system control technologies have great significance in keeping the safe and stable operation of power systems,and the improvement of its performance is one of the most economical and effective means to deal with the above challenges.This paper reviewed the development history of excitation system control technology and pointed out the technical challenges brought by“double high”power system.Furthermore,the key techniques for mining and improving the network-related performance of excitation system were proposed,including performance test in laboratory,field test and evaluation,refine simulation modeling of excitation system control,additional stability control,auxiliary control strategy optimization,etc.Finally,the research focus and development direction of excitation system control technology in the future were prospected.