| 农村低压配电网自动稳压设备的研究 |
| |
| 引用本文： | 赵玉林,董守田,赵琦.农村低压配电网自动稳压设备的研究[J].东北农业大学学报,2010,41(10). |
| |
| 作者姓名： | 赵玉林 董守田 赵琦 |
| |
| 作者单位： | 东北农业大学工程学院,哈尔滨,150030;东北农业大学工程学院,哈尔滨,150030;东北农业大学工程学院,哈尔滨,150030 |
| |
| 基金项目： | 黑龙江省科技厅攻关项目 |
| |
| 摘 要： | 农村低压配电网由于负荷波动大、供电半径长,使电压大幅波动。配电变压器自动有载调压是稳定农网电压的最有效方式。机械式有触点分接开关由于造价高、性能差不适合配电变压器。文章介绍了应用固态继电器作为无触点分接开关的自动有载调压配电变压器的构成,自动有载调压原理,变换分接头过程中环流的产生机理和限流措施以及限制谐波方法。经过理论分析和试验验证,得出了调高电压和调低电压具有不同的环流发展机理以及电力电子元件应用在有载调压中实际上不产生谐波的结论。实验样机通过实验室模拟试验。结果表明,样机运行稳定,稳压效果好,是农村电网自动稳压的有效方式。
|
| 关 键 词： | 配电变压器 固态继电器 有载调压 无触点 分接开关 |
Study on stabling voltage equipment On rural low-voltage grid |
| |
| ZHAO Yulin,DONG Shoutian,ZHAO Qi.Study on stabling voltage equipment On rural low-voltage grid[J].Journal of Northeast Agricultural University,2010,41(10). |
| |
| Authors: | ZHAO Yulin DONG Shoutian ZHAO Qi |
| |
| Abstract: | The voltage fluctuation of rural low-voltage grid is heavy due to the lode changes and the long power line.Automatic on-load voltage regulation of transformer is an effective method to stabilize load voltage.Mechanic contact tap changing switch is not adequate for distributing transformer because of its high cost and low capability.The paper presents the structure and automatic on-load voltage regulating principle of distributing transformer which employs solid state relay as non contact automatic on-load voltage regulat-ing tap changing switch.The generation mechanism and limiting measure of circular current that is occurred in the process of switching tap joint and the harmonic suppressing method are also introduced.By theoretical analysis and experimental verification,it is concluded that it has different occurring process of circular current when voltage is regulated to higher or lower value.And it is proved that the application of power electronic component in on-load voltage regulation can not generate harmonic.The result of experiment on voltage regulation of the prototype in laboratory show that it is stable for run and effective for stabling voltage,and that is a efficient way to stabilize voltage automatically. |
| |
| Keywords: | distributing transformer solid state relay on-load voltage regulation non contact tap joint |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
