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同步发电机瞬态电压调整率实用计算方法
杨建华1, 林菲1, 宁宇2, 高军3
1.中国农业大学 信息与电气工程学院,北京 100083;2.牡丹江电业局,黑龙江 牡丹江 157000;3.国家电网公司 电力调度中心,北京 100031
摘要:
提出一种实用算法,可简便、有效地判断同步发电机组的稳定运行状态。利用同步发电机的简化暂态模型,在考虑发电机自动调节励磁系统的顶值电压倍数和电压响应比的基础上,将动态元件的特性方程简化处理,在电力系统负载突然变化时计算发电机的瞬态电压调整率和端电压的变化趋势。计算方法简便、实用、精确。通过实际工程中同步发电机端电压最大偏移的计算与比较,验证了该方法的有效性和正确性。
关键词:  同步发电机  瞬态电压调整率  励磁系统  电压响应比
DOI:
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基金项目:
Practical algorithm of transient voltage regulation ratefor synchronous generators
YANG Jianhua1, LIN Fei1, NING Yu2, GAO Jun3
1.College of Information and Electrical Engineering,China Agricultural University, Beijing 100083,China;2.Mudanjiang Electric Power Bureau,Mudanjiang 157000,China;3.State Grid Electric Power Dispatching Centre,Beijing 100031,China
Abstract:
A practical algorithm of transient voltage regulation rate for synchronous generator is proposed to simply and effectively estimate its stable operation state. With the consideration of its ceiling voltage time and voltage response ratio,the dynamic characters of generator excitation system are simplified based on its simplified transient model,and the transient voltage regulation rate and the voltage regulation of the generators are calculated during sudden load change. The algorithm is simple,practical and precise. The calculation of maximum generator voltage dip for a practical application verifies its effectiveness and correctness.
Key words:  synchronous generator  transient voltage regulation rate  excitation system  voltage response ratio

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