Pengcheng Zhao

ORCID: 0009-0004-2623-1816
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About
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Research Areas
  • Microgrid Control and Optimization
  • Multilevel Inverters and Converters
  • Machine Fault Diagnosis Techniques
  • Power Systems and Renewable Energy
  • Photovoltaic System Optimization Techniques
  • Anomaly Detection Techniques and Applications
  • Fault Detection and Control Systems
  • Islanding Detection in Power Systems
  • Gear and Bearing Dynamics Analysis
  • Advanced DC-DC Converters
  • Rough Sets and Fuzzy Logic

Southwest Jiaotong University
2023-2025

Domain adaptation (DA) has the promising potential to mitigate distribution gap between source and target data in fault diagnosis. However, many DA methods only attempt align mean of feature distribution, neglecting covariance information about distribution. Furthermore, most existing ignore topological structures among different domains, potentially leading negative transfer. To tackle these issues, a novel mechanism, named discriminative graph knowledge embedding based on incremental...

10.1109/jsen.2024.3376403 article EN IEEE Sensors Journal 2024-03-18

Transformerless cascaded H-bridge (CHB) grid connected inverters (GCI) are widely used in engineering due to its advantages volume, cost and efficiency. However, the lack of electrical isolation results a leakage current loop between system earth, creating additional electromagnetic interference safety issues Firstly, CHB model with parasitic capacitance is established, proved that odd-module (OM-CHB) cannot be suppressed solely by modulation. Then, A new hardware-based pulse width...

10.1109/tpel.2023.3336073 article EN IEEE Transactions on Power Electronics 2023-11-23

This paper proposes an integrated single-stage buck-boost asymmetric inverter, which improves the circuit performance to cope with input voltage fluctuating over a wide range under compact design. The proposed inverter integrates converter and full-bridge can achieve higher gain without adding extra switches, has lower switching stress step-down condition. In order solve problem of waveform distortion caused by overmodulation in existing hybrid modulation, modulation scheme is proposed....

10.1109/jestpe.2023.3327983 article EN IEEE Journal of Emerging and Selected Topics in Power Electronics 2023-10-27
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