Adaptive Droop Controller for PV - Battery Based Microgrids
- Resource Type
- Conference
- Authors
- Gupta, Yusuf; Amin, Mohammad
- Source
- 2022 IEEE Energy Conversion Congress and Exposition (ECCE) Energy Conversion Congress and Exposition (ECCE), 2022 IEEE. :1-6 Oct, 2022
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
General Topics for Engineers
Power, Energy and Industry Applications
Robotics and Control Systems
Transportation
Power system management
Microgrids
Switches
Hybrid power systems
Discharges (electric)
Real-time systems
Decision feedback equalizers
Droop control
energy management
microgrid
power management
PV-battery
- Language
- ISSN
- 2329-3748
This paper deals with a decentralized power management for a microgrid fed by PV-battery hybrid distributed generation (DG) units. In this paper, a modified droop controller has been proposed to avoid the operation of batteries beyond their power limits. During peak power output from a particular battery, the proposed technique automatically reduces the perceived power rating of the hybrid DG and allows it to operate in grid-forming mode instead of switching to constant power mode. This has been achieved by dynamically shifting the $P-\omega$ droop lines vertically instead of changing the droop slopes. The effectiveness of the proposed control strategy has been validated through simulation studies on a two DG microgrid. The proposed control strategy can also be adapted to support frequency during severe power imbalance since battery power is conserved.