- Microgrid Control and Optimization
- Advanced DC-DC Converters
- Frequency Control in Power Systems
- Multilevel Inverters and Converters
- Electric and Hybrid Vehicle Technologies
- Silicon Carbide Semiconductor Technologies
- Wind Turbine Control Systems
- HVDC Systems and Fault Protection
- Electric Motor Design and Analysis
- Induction Heating and Inverter Technology
- Gear and Bearing Dynamics Analysis
- Mechanical Engineering and Vibrations Research
- Electric Vehicles and Infrastructure
- Advanced Battery Technologies Research
- Plasma Diagnostics and Applications
- Photovoltaic System Optimization Techniques
Tianjin University
2023-2024
Jilin University
2014
Hybrid electric vehicles have excellent energy efficiency and emission performance. Power split device (PSD) is a key component that directly affects the control strategy of power systems, economic consumption fuel, dynamic performance vehicles. A differential-based PSD was proposed in this paper. traditional differential taken as prototype new design method to retrofit into PSD. First, comprehensive approach includes theoretical analysis software simulation used analyze possibility well...
At present, with the progress of electronic technology and improvement demand for inverter control characteristics in various fields, multilevel inverters represented by three-level have been more widely used. However, algorithm controlled Space Vector Pulse Width Modulation (SVPWM) is complex, which brings great difficulty to its hardware programming. principle SVPWM flying capacitor described, a method voltage balance easy be realized digitally proposed solve offset problem capacitor. The...
As the cornerstone of adjusting microgrid output, electrical load interface unit is difficult to continuously output desired dynamics under various uncertainties. To handle problem, an improve linear active disturbance rejection control (ILADRC) including total differential compensation proposed for unit. In this technology, embedded in traditional extended state observer (TLESO) construct a modified LESO, alongside law generated by feedforward way. By doing this, suppression capability...
It is difficult to maintain high-quality power output under various interferences when the load-side converter with a conventional controller connected microgrid. To this end, linear active disturbance rejection control dual correction link (LADRCDCL) purposed deal problem. In scheme, accuracy serially between observation and law, thereby optimizing offset of estimation. On basis, rate was appended extended state observer (CLESO) framework as an additional composition, so improve convergence...
Wind energy is widely distributed and easy to use, so wind power generation technology will remain an important force in adjusting the structure for a long time future. During operation of system, dynamic performance DC bus voltage often affected by disturbances from turbine side grid side. In order solve this problem, linear active disturbance rejection controller based on deviation differential (LADRCDD) grid-connected control proposed paper. strategy, observation observer redefined...
Microgrid has drawn much attention as a key way of efficient utilization multiple distributed energies, following it is difficult to continuously output high-quality electrical energy owing various uncertain conditions. To this end, an enhanced linear active disturbance rejection control (ELADRC) based on reference-signal differential feedforward (RSDF) and the cascaded extended state observer with deviation correction (LESO-DC) proposed address unknown modeling error dynamics in...