基于网源协同的新能源电力系统一次调频改造与验证

Primary Frequency Modulation Transformation and Verification of New Energy Power System Based on Grid Souse Coordination

根据山东电网最新要求,结合现场实际情况对原有控制方案进行改造,设计了基于网源协同的新能源电力系统的快速调频改造方案,制定风电机组一次调频优化控制策略。改造方案除了保持原有要求准确、及时地响应稳态的调度指令,满足电网的调峰、二次调频、调压等功能不变外,还能够主动、快速地支撑所在电网的频率和电压的波动,实现新电源的惯量响应、一次调频及快速调压等功能。通过各种扰动情况下动态试验,验证改造方案对系统响应速度有了明显的提升,支撑电网的安全稳定运行,具有一定应用推广价值。

Based on the latest requirements of Shandong Power Grid and combined with the actual situation on site,the original control scheme is innovated,a fast frequency regulation renovation plan for new energy power systems is designed based on grid source collaboration,and an optimized control strategy for wind turbine primary frequency regulation is developed.The renovation plan not only maintains the original requirements of accurate and timely response to steady-state scheduling commands,but also maintains the functions of peak shaving,secondary frequency regulation/voltage regulation of the power grid.It can actively and quickly support the frequency and voltage fluctuations of the power grid,and achieve the inertia response,primary frequency regulation,and fast voltage regulation functions of the new power supply.Through dynamic tests under various disturbance conditions,it is verified that the renovation plan has significantly improved the system response speed,supported the safe and stable operation of the power grid,and has certain application and promotion value.