- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Microgrid Control and Optimization
- Working Capital and Financial Performance
- HVDC Systems and Fault Protection
- Gas Sensing Nanomaterials and Sensors
- Energy Load and Power Forecasting
- Islanding Detection in Power Systems
- Advanced Surface Polishing Techniques
- Supercapacitor Materials and Fabrication
- Corporate Social Responsibility Reporting
- Auditing, Earnings Management, Governance
- Metal and Thin Film Mechanics
- Energy Harvesting in Wireless Networks
- Thin-Film Transistor Technologies
- Polydiacetylene-based materials and applications
- Power System Optimization and Stability
- Corporate Finance and Governance
- Innovative Energy Harvesting Technologies
- Power Systems and Renewable Energy
Tsinghua University
2023
North China Electric Power University
2023
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources
2023
Phase-locked loop (PLL) technique is a critical control module applied in photovoltaic (PV) grid-connected system to synchronize with grid voltage. The PLL error directly affects the response characteristic of PV inverter under faults, leading mass harmonic components output current inverter. Especially scenario short-circuit fault deep voltage sag, detection too significant be ignored, posing challenges transformer differential protection. This paper proposes an improved scheme that...
Abstract The phase‐locked loop (PLL) is a critical control module applied in the system of renewable energy sources (RESs) to synchronize with grid voltage. When fault occurs, dynamic response process PLL will generate phase locking error, resulting mass harmonic components current PV inverter, which further poses challenges transformer differential protection. To address posed by error practical engineering applications, this paper proposes an improved scheme that uses digital computer...