摘要
风力发电的不确定性对并入电网的许多方面都有不同程度的影响;同时,这些影响反过来成为限制风电并网规模的各种因素,其中,电网中常规发电机的负调峰能力就是最重要的因素之一。因此,研究计算常规发电机负调峰容量极限的模型和算法成为一个重要的研究课题。从电网的有功功率平衡等式出发,研究风电注入电网造成的常规发电机出现负调峰特性的原理,提出一种计算常规发电机负调峰容量极限的优化模型,并根据模型的特点给出了一种2层搜索算法。仿真结果说明了模型和算法的正确性。
The uncertainty of wind power has widespread impact on connecting power grid. Consequently it becomes the cause of limiting the wind power to connect into gird. The capability of negative peak load regulation of conventional generators is one of the most important effective factors. The research on model and algorithm of calculating the limit of capability of negative peak load regulation becomes an important topic. The paper studies the mechanism of the negative peak load regulation of conventional generators based on active power balance equation, a new model is proposed to calculate the limit of capability of negative peak load regulation, and a practical two-tier algorithm is given. The simulation results prove the correctness of the model and algorithm.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2010年第16期26-31,共6页
Proceedings of the CSEE
基金
华北电力大学科研基金项目(200914003)~~
关键词
风力发电
负调峰容量
优化模型
两层算法
wind power
capacity of negative peak load regulation
optimal model
two-tier algorithm
