高原水光柴孤立电网中频率一次调节研究  

Study of primary frequency regulation of diesel generator at high altitude and its influences on isolated grid with photovoltaic connected

作　　者：曹炜[1] 祁晓卿[2] 鲁炜[3] 李玲 靳希[1] 

机构地区：[1]上海电力学院电力与自动化工程学院,上海200090 [2]北京电力经济技术研究院,北京100055 [3]上海电力公司超高压输变电公司,上海200063 [4]西藏电力有限公司,西藏拉萨850000

出　　处：《电源技术》2013年第9期1649-1651,共3页Chinese Journal of Power Sources

基　　金：上海市教育委员会重点学科建设项目资助(J51303);上海市科委国内科技合作项目(11195802200)

摘　　要：A电网是极高海拔地区孤立小容量电网,其主要电源是水轮发电机和柴油发电机,因在高原大气条件下难以协调两种发电机运行中的功率分配,后者不参与电网的一次调频,削弱了电网的调频能力,难以应对A电网光伏一期无储能2 MWp接入后的功率扰动。分析了在光照强度短时下降较多的情况下,柴油发电机不参与系统一次调频对A电网稳定性的影响;提出了柴油机参与一次调频后与水轮机间功率协调分配的措施,并进行了仿真计算,结果表明,此举可有效提高A电网的稳定性。Ali power grid is an isolated grid with small capacity at high altitude,and the main sources are hydro and diesel generators. The diesel generator does not participate in primary frequency regulation due to the difficulty of coordinating the power allocation of these two kinds of generators at high altitude, thus the frequency regulation capability of the grid is weakened and challenged after the Ali Photovoltaic connected to the grid without energy storage devices. The influence of light intensity change on the stability of AU grid without the diesel primary frequency regulation was analyzed and the counter measure of the diesel generator primary frequency control was proposed and simulated to improve the frequency stability of All grid with Photovoltaic connected.

关 键 词：孤立电网 高海拔 柴油机 一次调频 稳定性 光伏 

分 类 号：TM762[电气工程—电力系统及自动化]