Sonee Sapkota

ORCID: 0000-0001-9335-266X
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About
Contact & Profiles
Research Areas
  • Microgrid Control and Optimization
  • Smart Grid Energy Management
  • Supercapacitor Materials and Fabrication
  • HVDC Systems and Fault Protection
  • High-Voltage Power Transmission Systems
  • Advanced Battery Technologies Research
  • Silicon Carbide Semiconductor Technologies
  • Superconducting Materials and Applications
  • Islanding Detection in Power Systems

Northwestern Polytechnical University
2020-2022

Z-Source circuit breaker is immersing as an attractive research area on the DC system protection because of its property automatically responding to faults without external control system. With first proposed classical Z-source breaker, many more modifications have been made minimize operating time well facilitate bidirectional operation. This paper modifies previously T-source for operation which can be applied in MVDC where power flow between different sources and load required. The scheme...

10.1109/ispec50848.2020.9351283 article EN 2021 IEEE Sustainable Power and Energy Conference (iSPEC) 2020-11-23

This paper proposes an extended droop control strategy for dynamic transient power-sharing between supercapacitor (SC) and AC grid to manage the power demand in DC microgrid. The proposed utilizes a virtual impedance structure with SC converter resistor rectifier, which are responsible splitting load into average power, respectively. Load caused by sudden change is buffered additional supplied grid. working methods of design system explained, theoretical analyses verified simulations.

10.1109/ispec50848.2020.9351226 article EN 2021 IEEE Sustainable Power and Energy Conference (iSPEC) 2020-11-23

For on/off-grid DC microgrid, this paper proposes an improved droop control strategy combined with bus signaling to split transient and average load power between supercapacitor (SC), battery, grid. SC converter virtual impedance is responsible for supplying power, whereas battery grid rectifier, both resistor droop, are additional in off-grid on-grid modes, respectively. implemented the smooth transition of microgrid from state. The working methods proposed design system explained,...

10.1109/scems48876.2020.9352372 article EN 2020 IEEE 3rd Student Conference on Electrical Machines and Systems (SCEMS) 2020-12-04
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