引用本文: | 宋开胜,马宏忠,王华芳,徐唐煌,顾苏雯.基于晶闸管的分段式快速调压模型的设计[J].电力系统保护与控制,2019,47(7):135-141.[点击复制] |
SONG Kaisheng,MA Hongzhong,WANG Huafang,XU Tanghuang,GU Suwen.Design of a segmented rapid voltage regulation model based on thyristors[J].Power System Protection and Control,2019,47(7):135-141[点击复制] |
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摘要: |
针对机械式有载调压和电力电子式自动调压装置结构复杂、切换过程冗长和响应速度慢等问题,提出基于晶闸管的分段式快速调压模型。该模型去除冗杂的过渡电路,精简调压结构;在保证无短暂的电压电流中断的情况下,配合高频全控型双向晶闸管的特性,采用快速切换和增加分段绕组的方式限制过渡环流,简化调压流程;实现在任意时刻进行切换,突破过零切换理论的限制。以理论推导确定环路电流的影响因素,根据仿真实验以及结果分析得出合理的影响参数值。通过Matlab对10 kV/0.4 kV、400 kVA的变压器进行了最终参数的仿真,实验证明了分段式模型的可行性、可靠性以及快速性。 |
关键词: 分段式模型 配电变压器 调压绕组 自动控制 |
DOI:10.7667/PSPC180394 |
投稿时间:2018-04-10修订日期:2019-01-08 |
基金项目:国家自然科学基金项目资助(51577050); 江苏省电力公司科技项目资助(J2017069) |
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Design of a segmented rapid voltage regulation model based on thyristors |
SONG Kaisheng,MA Hongzhong,WANG Huafang,XU Tanghuang,GU Suwen |
(Xianning Power Supply Company, State Grid Hubei Electric Power Company, Xianning 437100, China;College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;Nanjing Power Supply Branch, State Grid Jiangsu Electric Power Company, Nanjing 210008, China) |
Abstract: |
Aiming at solving the problems of the existing mechanical on-load voltage regulation and power electronic automatic voltage regulators with complicated structure, lengthy switching process and slow response speed, a segmented fast voltage regulation model based on thyristors is proposed. The model removes redundant transitional circuits to reduce voltage regulation structure. Under the condition of ensuring that there is no short-term voltage and current interruption, it cooperates with the characteristics of high-frequency full-control thyristors, and uses fast switching thyristors and segmented windings to restrict the transitional circulation and simplify the regulation. The process can be switched at any time, which breaks the limit of zero-crossing switching theory. The influencing factors of the loop current are determined through the theoretical inference, and reasonable values of the influencing parameter are obtained based on the simulation experiment and the result analysis. The final parameters are used in the 10 kV/0.4 kV and 400 kVA transformer to be simulated by Matlab. The experiment has proved the feasibility, reliability and rapidity of the segmented model. This work is supported by National Natural Science Foundation of China (No. 51577050) and Science and Technology Project of Jiangsu Electric Power Company (No. J2017069). |
Key words: segmented model distribution transformer regulator winding automatic control |