Results 1 to 10 of about 9,782,796 (306)

A Deadbeat PI Controller With Modified Feedforward for PMSM Under Low Carrier Ratio

IEEE Access, 2021
When the permanent magnet synchronous motor (PMSM) operates at low carrier ratio, the decoupling capability and dynamic performance of the proportional-integral (PI) controller are limited by the digitization delay.
Zhijian Zhang, Long Jing, Xuezhi Wu, Wenzheng Xu, Jingdou Liu, Gege Lyu, Zilian Fan   +6 more
doaj   +1 more source

Backward Step-Up Control Strategy for Bidirectional LLC Resonant Converter

Energies, 2022
An LLC resonant converter has the advantages of simple structure and soft switching. It can enable bidirectional power transmission, but it is difficult to realize a normalized gain greater than one under backward mode (backward step-up mode).
Jingkai Niu, Xuezhi Wu, Yue Wang, Long Jing, Weige Zhang, Yibin Tong   +5 more
doaj   +1 more source

Online Estimation of Internal Short Circuit Resistance for Large-Format Lithium-Ion Batteries Combining a Reconstruction Method of Model-Predicted Voltage

World Electric Vehicle Journal, 2022
The resistance of the internal short-circuit (ISC) has a potential evolution trend accompanied by an increasing safety risk. Thus, an accurate online resistance estimation for the ISC is crucial for evaluating its safety risk and taking staged handling ...
Anci Chen, Weige Zhang, Bingxiang Sun, Hao Li, Xinyuan Fan   +4 more
doaj   +1 more source

A Novel Sequence-to-Sequence Prediction Model for Lithium-Ion Battery Capacity Degradation Based on Improved Particle Swarm Optimization

Batteries, 2023
The state of health (SOH) evaluation and remaining useful life (RUL) prediction for lithium-ion batteries (LIBs) are crucial for health management. This paper proposes a novel sequence-to-sequence (Seq2Seq) prediction method for LIB capacity degradation ...
Dinghong Chen, Weige Zhang, Caiping Zhang, Bingxiang Sun, Haoze Chen, Sijia Yang, Xinwei Cong   +6 more
doaj   +1 more source

Seven-level inverter with switched capacitors

The Journal of Engineering, 2019
The seven-level (7L) inverter with a nearly sinusoidal output voltage is suitable for renewable energy conversion applications. A novel 7L inverter topology with switched capacitors is proposed here.
Xuezhi Wu, Yaxue Zhao, Feng Liu, Jingdou Liu, Jie Wang, Jiuchun Jiang   +5 more
doaj   +1 more source

Congestion Identification and Expansion Planning Methods of Transmission System Considering Wind Power and TCSC

IEEE Access, 2022
Transmission congestion identification and expansion planning methods for power systems with wind power are proposed in this paper. First, wind farm model is established based on Copula theory considering the uncertainty and correlation of wind speed and
Fan Chen, Jianlin Liu, Meilian Zhao, Haitao Liu   +3 more
doaj   +1 more source

Capacity Estimation of Serial Lithium-ion Battery Pack Using Dynamic Time Warping Algorithm

IEEE Access, 2019
The existence of the consistency degradation of the battery pack hinders the accurate estimation of pack capacity and cell capacity in the battery pack. The paper focuses on the capacity estimation of cells in the serial battery pack.
Yang Liu, Caiping Zhang, Jiuchun Jiang, Yan Jiang, Linjing Zhang, Weige Zhang   +5 more
doaj   +1 more source

Virtual Battery Pack-Based Battery Management System Testing Framework

Energies, 2023
The battery management system (BMS) is a core component to ensure the efficient and safe operation of electric vehicles, and the practical evaluation of key BMS functions is thus of great importance.
Bingxiang Sun, Xinze Zhao, Xitian He, Haijun Ruan, Zhenlin Zhu, Xingzhen Zhou   +5 more
doaj   +1 more source

Multi-Agent Based Fully Distributed Economic Dispatch in Microgrid Using Exact Diffusion Strategy

IEEE Access, 2020
To solve the economic dispatch (ED) problem of multiple distributed generations in the microgrid, this paper proposes a fully distributed method by using the exact diffusion strategy which can achieve exact convergence under sparse communication network.
Yongjing He, Wei Wang, Xuezhi Wu
doaj   +1 more source

An Improved Energy Management Strategy for Hybrid Energy Storage System in Light Rail Vehicles

Energies, 2018
A single-objective optimization energy management strategy (EMS) for an onboard hybrid energy storage system (HESS) for light rail (LR) vehicles is proposed. The HESS uses batteries and supercapacitors (SCs).
Long Cheng, Wei Wang, Shaoyuan Wei, Hongtao Lin, Zhidong Jia   +4 more
doaj   +1 more source