A5011558116- HVDC Systems and Fault Protection
- High-Voltage Power Transmission Systems
- Advanced DC-DC Converters
- Microgrid Control and Optimization
- Energy Harvesting in Wireless Networks
- Silicon Carbide Semiconductor Technologies
- Multilevel Inverters and Converters
- Photovoltaic System Optimization Techniques
- Islanding Detection in Power Systems
- Smart Grid Energy Management
- Power System Optimization and Stability
- Magnetic Field Sensors Techniques
- Analog and Mixed-Signal Circuit Design
- Magnetic Properties and Applications
- Power Systems and Renewable Energy
- Solar Radiation and Photovoltaics
North Carolina State University
2021-2024
North Central State College
2024
National Institute of Technology Tiruchirappalli
2017
A solar PV panel is used to derive the maximum available power from sun's radiation in a given location and supply it water pumping system through suitable Maximum Power Point Tracking (MPPT) system. PI Controller based Fractional Open Circuit Voltage implemented by Ziegler Nichols method adjust duty cycle of DC-DC converter perform MPPT. This paper aims design validate performance small scale without usage current sensor control circuit under various insolation conditions.
In recent years, modular multilevel converters (MMC) have gained popularity for high-power applications such as in flexible AC transmission systems (FACTS) and High Voltage DC (HVDC) applications, due to their scalability modularity along with high efficiency handling voltage needs of the power grid. same domain one usage MMC-based system is integration energy storage static synchronous compensator (STATCOM) technology (known ES-STATCOM) providing active compensation reactive support This...
The increasing demand for Electrical energy as well the steady increase of fuel price has necessitated focus towards non-conventional sources energy. This paper presents a solution to reduce carbon footprint utility by utilising both solar PV source conventional grid feed load. system uses centralised DC bus topology in which supply power parallel inverter then feeds various subsystems involved are explained. is simulated under varying Solar Insolation conditions and performance parameters...
Centralized control algorithm limits the hardware flexibility of a Modular Multilevel Converter (MMC). Therefore, industrial MMC applications have started adopting distributed structures. Even though controller reduces single point failure risk compared to centralized controller, entire systems increases due number local controllers. However, can be programmed in such way as bypass faulty and take care power modules with adjacent This paper implements modular fault-tolerant for scaled...
A Modular Multilevel Converter (MMC) consists of series-connected bi-directional chopper cells with a floating capacitor on each leg. Despite the inherent modularity cells, most MMC controllers have been designed based Central Controller Unit (CCU) until recently. Using classical linear controllers, CCU executes operator-defined setpoints measured signals in outer-level control. Even though is relatively fast and has fewer communication routes, retains scalability features an as modification...
Modular Multilevel Converter (MMC) topology is preferred for medium to high-voltage applications in industrial projects. Due the distributed cell structure and continuous capacitor charging discharging, instantaneous voltage mismatches are unavoidable. As a result, circulating current occurs inside an MMC. Therefore, many control algorithms proposed literature minimize effects of current. However, methods on MMC stability have not been addressed. This paper analyzes under different...
Centralized control algorithm limits the hardware flexibility of a modular multilevel converter (MMC). Therefore, distributed structure has recently started to be seen in industry application. Even though controller reduces single point failure risk compared centralized controller, entire systems increases due number local controllers. However, can programmed such way as replace faulty and sustain MMC operation. In this paper, fault-tolerant is implemented laboratory-scale prototype. The...
The three-phase H-bridge or NPC converters are commonly adopted converter topologies for FACTS devices. Both the classified as multilevel capable of producing a three-level AC voltage between phase and neutral terminals. Either topology is good solution in low environment where it possible to select switch blocking required DC bus voltage. If designed high-voltage application, design stage these may be challenging due making composite switches requirements. Besides, there need large filter...