Journal of Power Electronics

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Step-up switched-capacitor multilevel inverter employing multiple inputs with reduced switches
Journal of Power Electronics - Tập 21 - Trang 986-997 - 2021
Yaoqiang Wang, Zhe Wang, Wenjun Liu, Yun Zhang, Kewen Wang, Jun Liang
A large device count, weak boosting capability, and DC voltage imbalance are common issues in conventional multilevel inverters. In this paper, a novel multilevel inverter is presented that can generate the desired number of output levels with reduced devices by using new switched-capacitor circuits (SCCs). The two input sources and capacitors in the SCC can be switched in parallel and series mode...... hiện toàn bộ
Estimation of switching losses considering non-linear parasitic capacitances of GaN E-HEMT
Journal of Power Electronics - - 2023
Inwon Lee, Dongkwan Yoon, Younghoon Cho
Junction temperature estimation approach based on TSEPs in multichip IGBT modules
Journal of Power Electronics - Tập 22 - Trang 1596-1605 - 2022
Jianxiong Yang, Yanbo Che, Li Ran, Borong Hu, Mingxing Du
Power semiconductor chips are parallelly packed in modules to achieve a specific current capacity and power level. An inhomogeneous degradation of the solder layer makes the junction temperature between chips unevenly distributed in multichip modules. The real matters of the junction temperature represented by the terminal electrical characteristics are not known when a junction temperature differ...... hiện toàn bộ
Characteristics analysis of micro-source half-bridge converter series Y-connection based microgrid systems
Journal of Power Electronics - Tập 23 - Trang 1483-1495 - 2023
Xinggui Wang, Yingjie Ding, Jinjian Li, Yongji Guo
Due to the problems of serious circulation current, large switching loss, high harmonic content, unstable voltage, and high engineering cost in existing microgrid structures, a micro-source half-bridge converter series Y-connection-based microgrid (HCSY-MG) is proposed in this paper. On the basis of the equivalent circuit in the system islanding state, the output characteristics of the system and ...... hiện toàn bộ
Selection of high transfer stability and optimal power-efficiency tradeoff with respect to distance region for underground wireless power transfer systems
Journal of Power Electronics - Tập 20 - Trang 1662-1671 - 2020
Yu Xu, Qili Chen, Detian Tian, Yongquan Zhang, Bo Li, Huiming Tang
Magnetic resonant wireless power transfer (MR-WPT) has become a significant method for powering the measurement units in landslide monitoring boreholes. This paper focuses on the effects of quality factor, coupling distance and load on the power transfer stability, sensitivity and performance of an MR-WPT system. Firstly, through a numerical model of an MR-WPT, the effect of quality factor and cou...... hiện toàn bộ
Switching cell structured direct AC–AC converter-based three-phase DVR system using interphase voltage
Journal of Power Electronics - Tập 21 Số 7 - Trang 1041-1051 - 2021
Hyeongmin Lee, Sanghun Kim, Honnyong Cha, Heung-Geun Kim
Bi-directional non-isolated impedance converter for extra low-voltage battery system safety
Journal of Power Electronics - Tập 23 Số 8 - Trang 1161-1173 - 2023
Narula, Aditya, Verma, Vishal
For bi-directional power converters, modularity, low leakage currents, low ripple, and a simple bi-directional control that utilizes storage effectively with low-voltage stress are required. This paper proposes a new configuration for converters that meet all of the above requirements to realize a robust converter for both vehicle to low-voltage DC microgrid (V2G) and low-voltage DC microgrid (LVD...... hiện toàn bộ
Fuzzy logic feed-forward impedance shaping of DAB converter in DC microgrid with CPL load
Journal of Power Electronics - Tập 23 Số 10 - Trang 1576-1584 - 2023
Gupta, Ravishankar, Singh, Navdeep
In a DC microgrid, the dual active bridge (DAB) converter is employed for voltage conversion and power transfer. DAB-based energy storage systems (ESSs) are known as constant power loads (CPLs). To improve the input current quality of DAB converter, an LC filter is cascaded to a DAB converter. Impedance interaction takes place between the impedance of the LC filter (Zout) and the impedance of the ...... hiện toàn bộ
Design of miniaturized and lightweight coupling inductors for interleaved parallel DC/DC converters
Journal of Power Electronics - Tập 21 - Trang 1439-1450 - 2021
Yifeng Wang, Pengyu Cheng, Xiaoyong Ma, Long Tao, Danfeng Zhao
At present, coupled inductance is an effective method for the development of the interleaved parallel converters in terms of high efficiency, miniaturization, and light weight. In view of the difficulty in designing coupling inductors in multiphase interleaved parallel converters, a general coupling inductor design criterion is proposed in this paper. First, the equivalent steady-state inductance ...... hiện toàn bộ
Output common mode voltage of a newly combined three-phase full-bridge duplex inverter
Journal of Power Electronics - Tập 22 - Trang 1542-1551 - 2022
Hengli Wang, Lei Yuan, Qiang Ren
Multilevel inverters, owing to their high equivalent switching frequency, high quality of output waveforms, fast dynamic response, and high redundancy, contribute significantly to high-efficiency and high-power inverter applications. However, in practical scenarios, multilevel inverters also have negative impacts. The output common mode voltage is one of the typical problems, which may harm the re...... hiện toàn bộ
Tổng số: 537   
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