D.H. Zhang

State-of-Health Estimation of Lithium-Ion Batteries Using Partial Constant-Voltage Charging Data

Feng Gao, D.H. Zhang, Ping Wang, Mingzhe Zhang

Accurate estimation of battery state of health (SOH) is a critical requirement for ensuring the safe operation of lithiumion batteries. This study proposes a data-lightweight approach, which achieves SOH estimation using only the first 60 seconds of constant-voltage charging data. Specifically, the …

cn (code pays fourni par la source)

Research on Acceleration Methods for Electromagnetic Transient Simulation of Large-scale Photovoltaic Power Plants

Jian Li, Xiaopeng Li, Xueyang Zeng, D.H. Zhang et autres

Large-scale photovoltaic power plants are currently the mainstream trend in photovoltaic development, supporting the realization of China’s “dual carbon” goals. However, the large number of power generation units has highlighted the contradiction between “complex model calculations” and “limited simulation resources,” making it …

cn (code pays fourni par la source)

Research on the Risk Assessment of Transient Overvoltage in the Multi-Voltage Level New Energy Transmission System

Xuanyuan Wang, Haitao Liu, Zhanpeng Chen, D.H. Zhang et autres

The traditional time-domain simulation method for evaluating transient overvoltage depends on accurate mathematical models and involves solving a significant number of algebraic and nonlinear equations, resulting in substantial computational demands and slow estimation speeds. This study proposes a risk assessment method for …

cn (code pays fourni par la source)

Static Voltage Stability Analysis of Large Scale Renewable Energy Delivered via Multi-Voltage-Level Transmission Sections

Haitao Liu, Man Xu, Z. Chen, X. Wang et autres

This paper addresses the static voltage stability constraints and complex coupling relationships in multi-voltage-level transmission sections for large-scale renewable energy integration systems. The study extracts two typical topological structures-parallel coupling and series coupling sections-from actual grid features and analyzes their interactive mechanisms …

cn, us (code pays fourni par la source)

Coordinated Optimization of Multiple Reactive Power Sources for Transient Overvoltage Suppression for New Energy Sending-Out System

Qinglei Zhang, Lei Luo, Xiaoping Wang, D.H. Zhang et autres

With the implementation of China’s “dual carbon” strategy, the installed capacity of new energy has grown rapidly. Wind power and photovoltaic power have accounted for more than 40%, but the integration of power electronic apparatus into the grid has resulted in the …

cn (code pays fourni par la source)

Voltage Strength Assessment of Sending/Receiving Systems with a High Proportion of New Energy and HVDC

Biyang Wang, Yu Kou, D.H. Zhang, Qinglei Zhang et autres

The significant increase in renewable energy sources and HVDC transmission has resulted in a substantial reduction in power system stability, thereby giving rise to a growing concern regarding the safety and stability of the voltage and frequency of DC power systems. A …

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Adaptive deep reinforcement learning energy management for hybrid electric vehicles considering driving condition recognition

D.H. Zhang, Junhui Li, Ningyuan Guo, Yonggang Liu et autres

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Study of e+e−→pp¯ in the vicinity of ψ(3770)

M. N. Achasov, X. Ai, O. Albayrak, M. Albrecht et autres

Using 2917 pb − 1 of data accumulated at 3.773 GeV , 44.5 pb − 1 of data accumulated at 3.65 GeV and data accumulated during a ψ ( 3770 ) line-shape scan with the BESIII detector, the reaction e + e …

cn, ru, us, de, it, nl, tr, pk (code pays fourni par la source)

Measurements of the observed cross sections for e+e−→ exclusive light hadrons containing π0π0 at s=3.773, 3.650 and 3.6648 GeV

M. Ablikim, J.Z. Bai, Y. Bai, Y. Ban et autres

cn, us, fr, ch (code pays fourni par la source)

Measurements of the observed cross sections for exclusive light hadron production in e+e− annihilation at s=3.773 and 3.650 GeV

M. Ablikim, J.Z. Bai, Y. Ban, X. Cai et autres

cn (code pays fourni par la source)

Direct measurement of the cross sections for D0D¯0, D+D− and DD¯ production by e+e− annihilation at the center-of-mass energy s=3.773 GeV

M. Ablikim, J.Z. Bai, Y. Ban, J. G. Bian et autres