New Pulse Width Modulation Technique to Reduce Losses for Three-Phase Photovoltaic Inverters

8Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Nowadays, most three-phase, "off the shelf" inverters use electrolytic capacitors at the DC bus to provide short term energy storage. However, this has a direct impact on inverter lifetime and the total cost of the photovoltaic system. This article proposes a novel control strategy called a 120° bus clamped PWM (120BCM). The 120BCM modulates the DC bus and uses a smaller DC bus capacitor value, which is typical for film capacitors. Hence, the inverter lifetime can be increased up to the operational lifetime of the photovoltaic panels. Thus, the total cost of ownership of the PV system will decrease significantly. Furthermore, the proposed 120BCM control strategy modulates only one phase current at a time by using only one leg to perform the modulation. As a result, switching losses are significantly reduced. The full system setup is designed and presented in this paper with some practical results.

Cite

CITATION STYLE

APA

Mnati, M. J., Bozalakov, Di. V., & Van Den Bossche, A. (2018). New Pulse Width Modulation Technique to Reduce Losses for Three-Phase Photovoltaic Inverters. Active and Passive Electronic Components, 2018. https://doi.org/10.1155/2018/4157614

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free