A5037084930- Microgrid Control and Optimization
- Photovoltaic System Optimization Techniques
- Frequency Control in Power Systems
- Caching and Content Delivery
- Multilevel Inverters and Converters
- Smart Grid Energy Management
- Silicon Carbide Semiconductor Technologies
- Islanding Detection in Power Systems
Central South University
2023
This paper proposes a distributed secondary control strategy with an event-triggered consensus-based observer. Firstly, voltage-shifting term is introduced in the proposed to ensure accurate current sharing, faster state-of-charge (SOC) balancing and bus voltage restoration. Since SOC speed becomes very slow when difference between battery energy units (BEUs) small, of BEUs low power difficult. Therefore, adaptive factor improve this strategy. In addition, communication delay can lead large...
This paper proposes a fault diagnosis method of three-phase inverter based on pulse transform. Firstly, the voltage between DC side midpoint and AC is used to detect occurrence open circuit judge upper lower position tube. Then signal adjusted transform change detected in real-time achieve judgement faulty tube phase, Thus, location realized. Compared with previous voltage, this reduces use devices, only needs speed fast. The feasibility proposed verified by simulation results.
Microgrid is an important means for the development and progress of smart grids. Aiming at diagnosing open circuit fault power switching device in multi-functional converter (MFC) microgrid, a method based on feature midpoint voltage deviation MFC proposed, which combines real-time switch state duration to realize diagnosis. Based model, theoretical processes different types single-tube faults double-tube were analyzed, characteristics corresponding under conditions achieved. Finally, this...