基于全息等效双模调制的大功率三电平防爆逆变器功率器件热容错控制

IF 1.3 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Active and Passive Electronic Components Pub Date : 2017-10-02 DOI:10.1155/2017/6961832

Shi-Zhou Xu, Chun-jie Wang, Yu-feng Peng

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引用次数: 0

摘要

三电平防爆逆变器必须具有高的热稳定性和良好的输出特性，以避免IGBT等功率器件带来的问题，因此仅使用一种控制算法来保证输出特性和高的热稳定成为研究的热点和难点。首先，在NPC（neutral point clamp）三电平逆变器的基础上，给出了空间矢量脉宽调制（SVPWM）的简化算法，然后引入准方波控制，将其与简化的SVPWM一起构成一种新的全息等效双模调制算法。建立了全息等效模型，分析了两种算法的相对优势。最后，对功率器件的动态输出和稳态损耗进行了分析，并在此基础上进行了功率损耗计算和系统仿真。实验证明，该大功率三电平防爆逆变器具有良好的输出特性和热稳定性。

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Power Device Thermal Fault Tolerant Control of High-Power Three-Level Explosion-Proof Inverter Based on Holographic Equivalent Dual-Mode Modulation

It is necessary for three-level explosion-proof inverters to have high thermal stability and good output characteristics avoiding problems caused by power devices, such as IGBT, so it becomes a hot and difficult research point using only one control algorithm to guarantee both output characteristics and high thermal stability. Firstly, the simplified SVPWM (Space Vector Pulse Width Modulation) algorithm was illustrated based on the NPC (neutral-point-clamped) three-level inverter, and then the quasi-square wave control was brought in and made into a novel holographic equivalent dual-mode modulation algorithm together with the simplified SVPWM. The holographic equivalent model was established to analyze the relative advantages comparing with the two single algorithms. Finally, the dynamic output and steady power device losses were analyzed, based on which the power loss calculation and system simulation were conducted as well. The experiment proved that the high-power three-level explosion-proof inverter has good output characteristics and thermal stability.

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来源期刊

Active and Passive Electronic Components ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Active and Passive Electronic Components is an international journal devoted to the science and technology of all types of electronic components. The journal publishes experimental and theoretical papers on topics such as transistors, hybrid circuits, integrated circuits, MicroElectroMechanical Systems (MEMS), sensors, high frequency devices and circuits, power devices and circuits, non-volatile memory technologies such as ferroelectric and phase transition memories, and nano electronics devices and circuits.