风电与火电机组的一次调频技术分析及比较

介绍了风电与火电机组常规的功率控制方法,分析及比较了其系统结构及控制层面的异同点;在此基础上,结合目前最新的风电与火电机组一次调频技术要求,分别从快速性和持续性2个方面系统性地总结和评价了现有的各种一次调频技术,从本质上揭示了风电实现一次调频的关键在于机-电协调控制;分别从单机机组、风电场级和电力系统3个层面对风电一次调频技术未来的发展方向进行了展望。

Analysis and comparison of primary frequency control technology for wind power and thermal power unit

Conventional power control methods of wind power and thermal power unit are introduced, and the similarities and differences in aspects of system structure and control between wind power and thermal power unit are analyzed and compared. On this basis, the latest technical rules of primary frequency control and the existing primary frequency control technologies are systematically summarized and evaluated from two aspects of rapidity and sustainability respectively. Meanwhile, it can be concluded that the machinery-electricity coordinate control represents the key of primary frequency control for wind power. The future promising direction of primary frequency control technologies for wind power is prospected in three parts: single unit, wind farm, and power system.