| 同步发电机带恒功率负载稳定性分析 |
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| 引用本文： | 高朝晖,林辉,张晓斌. 同步发电机带恒功率负载稳定性分析[J]. 哈尔滨工程大学学报, 2009, 30(1) |
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| 作者姓名： | 高朝晖 林辉 张晓斌 |
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| 作者单位： | 西北工业大学,自动化学院,陕西西安,710072 |
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| 摘 要： | 针对同步发电机带恒功率负载的系统稳定性问题进行了研究.说明了交流恒功率负载和直流恒功率负载的不同,给出了交流恒功率负载的小信号模型;在忽略阻尼绕组和电枢绕组中诸变压器电势的前提下,推导了同步发电机带恒功率负载系统的小信号传递函数,在此基础上得到系统的稳定工作条件;推导出同步发电机带恒功率负载系统精确状态空间方程,并利用Matlab绘制出不同负载情况下系统的稳定工作区域.得出结论:恒功率负载会导致同步发电机系统运行不稳定,提高系统输出电压和在一定范围内增加输出滤波电容值都可以使系统稳定件得到有效改善.
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| 关 键 词： | 同步发电机 恒功率负载 稳定性 小信号模型 |
Stability analysis of synchronous generators with constant power loads |
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| GAO Zhao-hui,LIN Hui,ZHANG Xiao-bin. Stability analysis of synchronous generators with constant power loads[J]. Journal of Harbin Engineering University, 2009, 30(1) |
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| Authors: | GAO Zhao-hui LIN Hui ZHANG Xiao-bin |
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| Affiliation: | College of Automation;Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | The stability of synchronous generators with constant power loads was studied.The difference between AC constant power loads and DC constant power loads was reviewed and the small-signal model of AC constant power loads given.When the damper windings and the transformer potentials of armature windings are neglected,the small-signal transfer function of a synchronous generator with constant power loads can be deduced,and the stable operating conditions of the system obtained.The exact state-space equations o... |
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| Keywords: | synchronous generator constant power loads stability small-signal model |
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