逆变桥缓冲电路的优化设计

周国明; 王建平

doi:10.11993/j.issn.1673-1948.2016.01.011

逆变桥缓冲电路的优化设计

doi: 10.11993/j.issn.1673-1948.2016.01.011

中国船舶重工集团公司第705研究所昆明分部, 云南昆明, 650118

详细信息

作者简介:
周国明(1987-), 男, 在读硕士, 主要研究方向为电力电子、电力传动与控制、新能源.

中图分类号: TJ631.2; TM464
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- 被引次数: 0
出版历程
- 收稿日期: 2015-08-13
- 修回日期: 2015-12-28
- 刊出日期: 2016-02-20

Optimization Design of Inverter Bridge Snubber Circuit

Kunming Branch of the 705 Research Institute, China Shipbuilding Industry Corporation, Kunming 650118, China

摘要

摘要: 电动力鱼雷动力系统设计的关键环节之一就是利用功率器件组成逆变桥进行逆变电路的设计, 而功率器件在开通、关断瞬间会承受较大的电流变化率、电压变化率以及电压电流尖峰, 这些工作参数如果超出器件的安全工作区, 将会导致器件损坏, 因此需要设置缓冲电路。首先以绝缘栅双极型晶体管(IGBT)为例分析了功率器件的开关工作过程, 比较了不同结构缓冲电路的应用领域及其优缺点, 并进行了对比分析、理论推导和仿真试验,仿真结果表明, 电阻电容二极管(RCD)放电阻止型缓冲电路对关断浪涌电压抑制能力强、开关损耗低, 可以作为大功率、高频电力电子系统设计的优选方案。
- 电动力鱼雷 /
- 功率器件 /
- 逆变桥 /
- 电阻电容二极管型缓冲电路
Abstract: One of the key links in power system design of an electric power torpedo is the design of inverter circuit by using power semiconductor devices to form inverter bridge. This device will be subject to sharp variations of current and voltage as well as current and voltage spikes at its ‘turning on’ or ‘turning off’ moment. If these parameters beyond the safe operating area of the device, damage would occur, so it is necessary to design a snubber circuit. This paper analyzes the turning on or turning off process of an insulated gate bipolar transistor(IGBT) , compares different applications of snubber circuits with different structures, and discusses the advantages and disadvantages of the snubber circuits. Comparative analysis and theoretical derivation are performed for different inverter bridge snubber circuits, and simulation is conducted. Simulation result shows that the resistance capacitance diode(RCD)-type snubber circuit has the ability of strong suppression to turning-off surge voltage, and has low switching loss. It is hence suggested that the RCD-type snubber circuit be selected in design of high power high frequency power electronic system.
- electric power torpedo /
- power semiconductor /
- inverter bridge /
- resistance capacitance diode(RCD)-type snubber circuit

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参考文献(8)

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