| 引用本文: | 何梦宇,王自强,周元钧.航空发电机容性负载自激励条件分析[J].控制理论与应用,2018,35(8):1133~1141.[点击复制] |
| HE Meng-yu,WANG Zi-qiang,ZHOU Yuan-jun.Self-Excitation Analysis of Aeronautical Generator with Capacitive Load[J].Control Theory and Technology,2018,35(8):1133~1141.[点击复制] |
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| 航空发电机容性负载自激励条件分析 |
| Self-Excitation Analysis of Aeronautical Generator with Capacitive Load |
| 摘要点击 2219 全文点击 1152 投稿时间：2017-05-31 修订日期：2018-01-18 |
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| DOI编号 10.7641/CTA.2018.70361 |
| 2018,35(8):1133-1141 |
| 中文关键词 多电飞机 容性负载 自激励 负载容量 功率因数 配电设计 |
| 英文关键词 more-electric aircraft capacitive load self-excitation load capacity power factor design of power distribution |
| 基金项目 |
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| 中文摘要 |
| 多电飞机使用电能取代传统飞机的液压能和气压能, 导致供电系统的非线性负载增加, 常采用电容滤波改
善非线性负载对供电质量的影响, 形成电网的容性负载. 本论文研究容性负载可能导致的发电机自激励问题. 首先
研究了导致航空发电机自激励的容性负载的条件, 然后分析了转子的凸极结构对自激励特性的影响. 通过推导得到
了以负载阻抗和负载容量表示的发电机的自激励条件, 并且分别从负载阻抗、负载容量以及电网功率因数的角度
给出了防止发电机自激励的判据. 最后, 通过典型航空发电机系统的仿真以及样机原理性试验, 验证了自激励条件
的准确性. |
| 英文摘要 |
| More-electric aircraft use electricity to replace the traditional aircraft’s hydraulic and pneumatic energy,
results increasing of nonlinear load in power supply system. The capacitive filtering are often used to improve the nonlinear
power supply quality, thus forming the capacitive load on the grid. This paper investigates the problem of self-excitation
of generators caused by capacitive loads. First, the conditions of the capacitive load that lead the aero-generators turn into
self-excitation are analyzed. Then, the influence of salient pole structure of the rotor on the self-excitation characteristics is
analyzed. Third, the self-excitation conditions of the generator which are expressed by load impedance and load capacity,
are obtained by derivation. The criteria for preventing self-excitation of the generator are given respectively from the aspects
of load impedance, load capacity and power factor. Finally, the accuracy of the self - excitation condition is verified by the
simulation of a typical aeronautical generator system and prototype test. |
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