Coordinated state-of-charge control strategy for microgrid during islanded operation
- Resource Type
- Conference
- Authors
- Kim, Jong-Yul; Kim, Seul-Ki; Jeon, Jin-Hong
- Source
- 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Power Electronics for Distributed Generation Systems (PEDG), 2012 3rd IEEE International Symposium on. :133-139 Jun, 2012
- Subject
- Power, Energy and Industry Applications
Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Geoscience
System-on-a-chip
Energy storage
Frequency control
Generators
Load modeling
Voltage control
Distributed power generation
Microgrid
Islanded Operation
Coordinated Control
Energy Storage System(ESS)
State-of-charge(SOC)
- Language
- ISSN
- 2329-5759
2329-5767
In this paper, a coordinated state-of-charge (SOC) control strategy for the energy storage system operating under microgrid islanded mode to stabilize the frequency and voltage was proposed. The proposed SOC control loop makes up of PI controller, which uses a SOC state of the energy storage system (ESS) as an input and an auxiliary reference value of secondary control as an output. The SOC controller changes the auxiliary reference value of secondary control to charge or discharge the ESS. To verify the proposed control strategy, PSCAD/EMTDC simulation study was performed. The simulation results show that the SOC of the ESS can be regulated at desired operating range without degrading of stabilizing control performance by proposed coordinated SOC control method.