Method for Obtaining Fixed Pulse Pattern Suitable for Harmonic Regulation in Large-Capacity PWM Rectifier Systems

Tsukakoshi, Masahiko; Matsuse, Kouki

doi:10.1541/ieejias.131.380

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…In order to optimize the switching phase of the DC-AC inverter, total harmonic distortion (abbr. THD) is applied to the evaluation function [9,10]. The THD is derived from the ratio of the harmonic components to the fundamental component.…”

Section: Evaluation Functionmentioning

confidence: 99%

Harmonic elimination of three phase PWM DC-AC inverter using particle swarm optimization

Morita

Kurihara

Shindo

et al. 2015

NOLTA

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The purpose of this paper is to improve the output quality of three phase PWM DC-AC inverter. The improvement in output quality is required to reduce the harmonic components. The PWM control can reduce harmonic components by adjusting the width of each pulse. We design the switching phase to improve output quality, also propose an evaluation function for evaluating the frequency components. In order to optimize the switching phase, particle swarm optimization is applied. We confirm the effectiveness of the proposed method comparing with other methods. Moreover, we confirm the effectiveness by using the implementation circuit of the three phase inverter.

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Section: Evaluation Functionmentioning

confidence: 99%

Harmonic elimination of three phase PWM DC-AC inverter using particle swarm optimization

Morita

Kurihara

Shindo

et al. 2015

NOLTA

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Optimization of Switching Phase of a Single‐Phase PWM dc–ac Inverter

Morita

Shindo

Kurihara

et al. 2016

Electrical Engineering Japan

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SUMMARYThe purpose of this paper is to improve the efficiency of the single‐phase pulse width modulation (PWM) dc–ac inverter based on optimization of the switching phase of the PWM. Improvement of the efficiency means improvement of the quality of the output waveform and the conversion efficiency, and reduction of the switching loss. We propose an evaluation method involving minimization of the evaluation function by using the particle swarm optimization algorithm. We improve efficiency by setting a criterion for each index. As a result, the proposed algorithm can reduce high harmonic components in switching times shorter than the conventional triangle wave comparison method. Also, we confirm that the algorithm can improve the quality of the output waveform and the efficiency of conversion.

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Multilevel Fixed Pulse Pattern Control for Medium-Voltage High-Frequency Inverter

2021

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To satisfy the demand for more compact medium-voltage motor drive systems, it is desirable to increase the frequencies of cascaded H-bridge inverters used in high-speed motor systems. However, in asynchronous pulse-width modulation (PWM) systems, as the output frequency increases, the command voltage and triangular wave carrier frequencies become closer, making it impossible to output the command voltage accurately. This manifests in the form of increased current harmonics, increased surge voltage at the motor terminals, and increased low-frequency ripple current owing to the asynchronous nature of the system. In this study, we adopt a fixed pulse pattern modulation method to address these problems. In our method, a low-distortion output voltage without multiple simultaneous changes is compiled into a table in advance, and subsequently output in synchronization with the fundamental voltage phase. We were able to confirm the effectiveness of the proposed method via simulations and mini-model experiments at fundamental wave frequencies of 700 Hz and 1000 Hz.

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Method for Obtaining Fixed Pulse Pattern Suitable for Harmonic Regulation in Large-Capacity PWM Rectifier Systems

Cited by 4 publications

References 10 publications

Harmonic elimination of three phase PWM DC-AC inverter using particle swarm optimization

Harmonic elimination of three phase PWM DC-AC inverter using particle swarm optimization

Optimization of Switching Phase of a Single‐Phase PWM dc–ac Inverter

Multilevel Fixed Pulse Pattern Control for Medium-Voltage High-Frequency Inverter

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