Journal of Power Electronics

Journal Article

Accurate harmonic analysis of dual-frequency inverter considering dead-time effect

Wu, Jie; Yang, Zhiliang; Wang, Wenlei; Chen, Yafei; Wu, Zhenjun;

2024 Journal of Power Electronics

Wireless power transfer (WPT) systems or simultaneous wireless information and power transfer (SWIPT) systems support multiple charging frequency standards and usually transmit two or more frequencies simultaneously. Multi-frequency sinusoidal pulse width modulation (MF-SPWM) technology can...

LitStream

Journal Article

A novel direct torque control method for switched reluctance motors based on optimal turn-on angle

Ren, Ping; Zhu, Jingwei; Zhao, Yan; Jing, Zhe

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00805-5

In view of the disadvantages of negative torque and low operation efficiency in the traditional direct torque control (DTC) for the switched reluctance motor drive (SRD), a novel DTC strategy based on optimal turn-on angle is proposed in this paper. First, the flux hysteresis controller of the...

LitStream

Journal Article

Identification of failure modes in interior permanent magnet synchronous motor under accelerated life test based on dual sensor architecture

Choi, Sikgyeong; Oh, Jaewook; Lee, Juho; Kwon, Woyeong; Lee, Jeonghae;

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00810-8

Recently, the permanent magnet synchronous motors (PMSMs) are considered to be one of the best options for electrical motor due to their high power density and efficiency for various applications including industrial robot and smart mobility. However, the safety and reliability of the PMSM have...

LitStream

Journal Article

Hybrid-paralleled power-factor-correction system for high-power equipment harmonic suppression

Zhu, Tiansheng; Du, Guiping; Deng, Zhuofeng; Lei, Yanxiong

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00807-3

This paper proposes a novel power-factor-correction system for the harmonic suppression of high-power equipment. It connects a PWM (pulse width modulation) rectifier and several uncontrolled diode rectifier units in parallel. The PWM rectifier is not connected to the load, and the power of the...

LitStream

Journal Article

Composite control strategy for wide-gain LLC resonant converters with photovoltaic energy storage inputs

Feng, Xingtian; Zhang, Rundong; Zhou, Guangrui

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00808-2

Taking the photovoltaic-battery dual-input LLC resonant converter as the focal point of research, a mode-switching switch is incorporated to address the narrow range of voltage regulation in frequency conversion control. A wide-gain composite control strategy, with combined frequency conversion...

LitStream

Journal Article

Series arc fault detection method based on a residual deformable convolutional network for complex branch circuit

Yu, Qiongfang; Wu, Qiong; Zhang, Yuhai

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00812-6

When a series arc fault (SAF) occurs in one branch of a low-voltage alternating current power distribution system with complex connections and many types of loads, the load branches interact with one another, and thus, detection becomes more difficult. To avoid the occurrence of electrical fire,...

LitStream

Journal Article

Geometric principle-based deadbeat predictive control with low-torque ripple for dual three-phase permanent magnet synchronous motors

Wang, Shuang; Zhang, Ying; Zhao, Jianfei; Wu, Deliang

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00813-5

Severe torque ripple and determination of the weighting factor pose significant challenges in traditional predictive torque control. A deadbeat predictive torque control scheme designed to minimize torque ripple for dual three-phase permanent magnet synchronous motors is proposed in this paper,...

Open Access

Journal Article

On-line minimum loss control strategy of IPMSM in torque-controlled application

Kim, Young-Wook; Kim, Hwigon; Park, Jaeyeon; Sul, Seung-Ki

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00773-w

This study proposes an on-line minimum loss (ML) control strategy that considers the iron and copper losses of an interior permanent magnet synchronous motor in torque-controlled applications. The proposed ML control strategy utilizes a constrained optimization problem to satisfy torque reference...

LitStream

Journal Article

Research on improving the reliability and reducing the weight of battery packs for railway vehicles

Kim, Beom-Jun; Na, Seok-Jin; Cho, In-Ho

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00817-1

In the railway industry, there is ongoing research on incorporating large-capacity energy storage system (ESS) into railway vehicles to reduce carbon emissions and enhance energy efficiency. Lithium-ion batteries are widely used in ESSs due to their high energy density. However, their high...

LitStream

Journal Article

Hardware simulator of DC–AC inverters for electric compressors

Bak, Yeongsu

2024 Journal of Power Electronics

doi:10.1007/s43236-024-00816-2

This paper presents development of a hardware simulator for the DC–AC inverters of electric compressors (e-compressors). In general, early-release EVs often feature a nominal battery voltage of around 400 V. However, EVs with a 400 V battery have drawbacks such as slow battery charging speeds and...

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