Zhiheng Li, Shaoxiang Ma, Hongqi Zhang, Bangyou Zhu, Ming Zhang, Kexun Yu, Yuan Pan
{"title":"- 1MV五级电压系统铁心缓冲器特性分析及浪涌抑制保护方案分析","authors":"Zhiheng Li, Shaoxiang Ma, Hongqi Zhang, Bangyou Zhu, Ming Zhang, Kexun Yu, Yuan Pan","doi":"10.1007/s10894-023-00385-5","DOIUrl":null,"url":null,"abstract":"<div><p>When the breakdown of acceleration grid occurs, the core snubber can consume fault energy and limit the arc current. In this paper, the expression of equivalent circuit model is optimized. The value of magnetization inductance at <i>da</i><sub><i>1</i></sub><i>/dt</i> = 0 is analyzed and the equivalent resistance expression eddy current coefficient is revised from 2.5 to 1. The simulation model with gyrator and the high voltage short circuit experiment platform are described. The rationality of the model hypothesis is verified. Then the effectiveness of equivalent circuit model established in this paper is verified. Also, the dynamic response of the discharge circuit is obtained and the influence of system leakage inductance on the surge suppression process is analyzed. At the same time, in this paper, the distributed capacitance of the transmission line is extracted, and the structure parameters of core snubber suitable for −1MV voltage level are designed. Based on the structure design parameters of snubber, distributed capacitance values of transmission line and power supply parameters, the overall configuration scheme of passive protection components in −1MV five-stage voltage system is analyzed.</p></div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Characteristic Analysis of Core Snubber and Analysis of Protection Scheme for Surge Suppression of − 1MV Five-Stage Voltage System\",\"authors\":\"Zhiheng Li, Shaoxiang Ma, Hongqi Zhang, Bangyou Zhu, Ming Zhang, Kexun Yu, Yuan Pan\",\"doi\":\"10.1007/s10894-023-00385-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>When the breakdown of acceleration grid occurs, the core snubber can consume fault energy and limit the arc current. In this paper, the expression of equivalent circuit model is optimized. The value of magnetization inductance at <i>da</i><sub><i>1</i></sub><i>/dt</i> = 0 is analyzed and the equivalent resistance expression eddy current coefficient is revised from 2.5 to 1. The simulation model with gyrator and the high voltage short circuit experiment platform are described. The rationality of the model hypothesis is verified. Then the effectiveness of equivalent circuit model established in this paper is verified. Also, the dynamic response of the discharge circuit is obtained and the influence of system leakage inductance on the surge suppression process is analyzed. At the same time, in this paper, the distributed capacitance of the transmission line is extracted, and the structure parameters of core snubber suitable for −1MV voltage level are designed. Based on the structure design parameters of snubber, distributed capacitance values of transmission line and power supply parameters, the overall configuration scheme of passive protection components in −1MV five-stage voltage system is analyzed.</p></div>\",\"PeriodicalId\":634,\"journal\":{\"name\":\"Journal of Fusion Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2023-09-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Fusion Energy\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10894-023-00385-5\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fusion Energy","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10894-023-00385-5","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Characteristic Analysis of Core Snubber and Analysis of Protection Scheme for Surge Suppression of − 1MV Five-Stage Voltage System
When the breakdown of acceleration grid occurs, the core snubber can consume fault energy and limit the arc current. In this paper, the expression of equivalent circuit model is optimized. The value of magnetization inductance at da1/dt = 0 is analyzed and the equivalent resistance expression eddy current coefficient is revised from 2.5 to 1. The simulation model with gyrator and the high voltage short circuit experiment platform are described. The rationality of the model hypothesis is verified. Then the effectiveness of equivalent circuit model established in this paper is verified. Also, the dynamic response of the discharge circuit is obtained and the influence of system leakage inductance on the surge suppression process is analyzed. At the same time, in this paper, the distributed capacitance of the transmission line is extracted, and the structure parameters of core snubber suitable for −1MV voltage level are designed. Based on the structure design parameters of snubber, distributed capacitance values of transmission line and power supply parameters, the overall configuration scheme of passive protection components in −1MV five-stage voltage system is analyzed.
期刊介绍：
The Journal of Fusion Energy features original research contributions and review papers examining and the development and enhancing the knowledge base of thermonuclear fusion as a potential power source. It is designed to serve as a journal of record for the publication of original research results in fundamental and applied physics, applied science and technological development. The journal publishes qualified papers based on peer reviews.
This journal also provides a forum for discussing broader policies and strategies that have played, and will continue to play, a crucial role in fusion programs. In keeping with this theme, readers will find articles covering an array of important matters concerning strategy and program direction.
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