| 电力系统强迫功率振荡及其影响因素研究 |
| |
| 引用本文： | 王哲伟,云雷,盛超,陈晓科,杨汾艳. 电力系统强迫功率振荡及其影响因素研究[J]. 西北电力技术, 2012, 0(9): 5-7,19 |
| |
| 作者姓名： | 王哲伟 云雷 盛超 陈晓科 杨汾艳 |
| |
| 作者单位： | [1]武汉大学电气工程学院,湖北武汉430072 [2]广东电网公司电力科学研究院,广东广州510600 |
| |
| 基金项目： | 国家自然科学基金项目（51077103）;中央高校基本科研业务费专项基金（武汉大学20102070101000075）. |
| |
| 摘 要： | 近年来，跨区域电网中出现了多次功率振荡并且呈现出新的振荡特性，但是根据经典的负阻尼转矩机理却无法解释这类振荡产生的原因，而强迫功率振荡机制可以很好地揭示这类振荡的起因。基于经典阻尼转矩理论在多机系统中对强迫振荡源作用下的电力系统受迫振荡机制进行分析，详细推导并论证了跨区大电网发生强迫功率振荡的影响因素，并指出系统的稳态响应是多种影响因素累加的综合效应。
|
| 关 键 词： | 强迫功率振荡 强迫振荡源 多自由度振动 影响因素 |
Research on Forced Power Oscillation and its Influencing Factors in Power System |
| |
| WANG Zhe-wei,YUN Lei,SHENG Chao,CHEN Xiao-ke,YANG Fen-yan. Research on Forced Power Oscillation and its Influencing Factors in Power System[J]. Northwest China Electric Power, 2012, 0(9): 5-7,19 |
| |
| Authors: | WANG Zhe-wei YUN Lei SHENG Chao CHEN Xiao-ke YANG Fen-yan |
| |
| Affiliation: | 1. College of Electrical Engineering, Wuhan University, Wuhan 430072, China; 2. Electric Power Research Institute of Guangdong Power Grid Corporation,Guangzhou 510600, China) |
| |
| Abstract: | Power oscillations have occurred frequently in inter-regional grid in recent years, and presented some new characteristics. However, it is proved that forced vibration mechanism can be used to explain these power oscillations well, which are triggered off by non- negative damping mechanism. The mechanism of forced power oscillation is elaborated by multi-machine power system under the action of oscillation source based on negative damping mechanism. The key factors that influence the oscillation amplitude are derived and demonstrated and it is concluded that the system steady response is a comprehensive effect of the accumulation of many affecting factors. |
| |
| Keywords: | forced power oscillation oscillation source multiple degree of freedom systems oscillation influencing factors |
| 本文献已被 维普 等数据库收录！ |
|
