Push-pull Inverter based Wireless Power Transfer System

With the increasing demand of users for power sources and quality, how to provide high-quality renewable clean energy has become a key issue of power electronics. The main idea of this paper is to develop a composite control including a PI control and repetitive control for a single-phase grid-connected inverter to eliminate the effects of harmonics, which can obtain better steady-state and dynamic responses of the single-phase inverter system and reduce the net current harmonics. The modelling of a single-phase inverter is first introduced; then a first-order repetitive control is developed for the proposed grid-connected inverter. Moreover, a high-order repetitive controller is adopted to further improve the robustness against the uncertainties in the period of signals. The stability and performance analysis are given for the first-order repetitive control and high-order repetitive control. Finally, comparative simulations are conducted in a circuit-level inverter model, which show the effectiveness of the proposed method.

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“…ere are three main topologies of single-phase inverter: push-pull inverter, half-bridge inverter, and full-bridge inverter [27][28][29][30][31].…”

Section: Preliminaries and Problem Formulationmentioning

confidence: 99%

First-Order and High-Order Repetitive Control for Single-Phase Grid-Connected Inverter

Guo¹,

Zhong

Zhao

et al. 2020

Complexity

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“…The current-fed isolated push-pull inverter is derived from the half-bridge and full-bridge converters and has proven to be a simple choice with low component count for modern low-power applications, which include UPSs, wireless power transfer (WPT), and double conversion systems as reported in other studies. [23][24][25] However, the leakage inductance of the transformer leads to poor efficiency, and the voltage stress on the switches is equal to twice the DC-link voltage.…”

mentioning

confidence: 99%

Non‐isolated single‐phase inverter based on an autotransformer for low‐power applications

Corrêa

Andrade

Morais

et al. 2021

Circuit Theory & Apps

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This work presents a non-isolated single-phase voltage-source inverter (VSI) topology using an autotransformer to provide an alternating current (AC) output voltage whose maximum peak value can be up to twice that obtained with the conventional half-bridge and full-bridge inverters. Prominent advantages include a simple structure with low component count, as well as the fact that both switches are connected to a same reference node, as there is no need for isolated driver circuitry. As a possible drawback, the maximum voltage across the switches is equal to twice the input voltage, but it is still reasonable to state that the topology is adequate for low-power, low-input-voltage applications. A thorough qualitative and quantitative analysis is presented, from which it is possible to derive a consistent design procedure. An experimental prototype with a rated power of 100 W, switching frequency of 20 kHz, direct current (DC) input voltage of 35 V, and rms output voltage of 37 V is developed to validate the theoretical assumptions.

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Push-pull Inverter based Wireless Power Transfer System

Cited by 2 publications

References 5 publications

First-Order and High-Order Repetitive Control for Single-Phase Grid-Connected Inverter

First-Order and High-Order Repetitive Control for Single-Phase Grid-Connected Inverter

Non‐isolated single‐phase inverter based on an autotransformer for low‐power applications

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