基于IGBT行为模型的有源中点钳位五电平变换器损耗特性分析

doi:10.19595/j.cnki.1000-6753.tces.L90104

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Abstract Five-level active neutral-point clamped (5L-ANPC) topology is usually used in the field of medium-voltage and large-capability electrical energy conversion. Due to its complex topology structure and the effective switching frequencies of switches are different, the loss analysis is very difficult and the calculation accuracy must be extremely high. The loss calculation method based on phase-shifted PWM (PS-PWM) is analyzed. According to the relationship between voltage and current, the conduction rules of all switches are analyzed in detail, and then the expressions of conduction loss is derived. Aiming at the problem of large error in the traditional switching loss calculation method under the condition of medium-voltage and large-capability, the IGBT switching transient process is analyzed in detail, and a calculation method of switching transient loss based on behavior model is proposed and applied to calculate the switching loss of the 5L-ANPC topology. This paper also analyzes the loss characteristics of the 5L-ANPC topology, laying a solid foundation for the design of the cooling system. Experimental results show that the proposed method improves the loss calculation accuracy. The maximum error is 10.4% and the minimum is 8.4%, which verifies the effectiveness of the proposed loss calculation method.

Key words： Five-level active neutral-point clamped (5L-ANPC) phase-shifted PWM (PS-PWM) IGBT behavior model power loss

Received: 27 June 2020

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	Ye Weiwei
	Nie Ziling
	Zhu Junjie
	Xu Jie

Cite this article:

Ye Weiwei,Nie Ziling,Zhu Junjie等. Analysis of Loss Characteristics of Five-Level Active Neutral Point Clamped Converter Based on IGBT Behavior Model[J]. Transactions of China Electrotechnical Society, 2021, 36(zk1): 218-230.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90104 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/Izk1/218

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