TY - GEN
T1 - Decentralized power flow control for a smart micro-grid
AU - Shah, Jalpa
AU - Wollenberg, Bruce F.
AU - Mohan, Ned
PY - 2011
Y1 - 2011
N2 - The paper proposes an enhanced power management achieved for a smart micro-grid, by a power electronic transformer (PET), at the point of common coupling (PCC). The smart micro-grid is a set of controllable loads and distributed energy resources (DER), which supply demand of a group of customers. The proposed decentralized control strategy for the micro-grid components, utilizes the change in local grid frequency to control the active power generation and consumption within the micro-grid. The PET allows restricted active power flow to the micro-grid, at the PCC, at a desired value determined by the utilities. The simulation results are obtained to verify the operation and claims of the PET as stated below: 1) For a step disturbance within the micro-grid, the utility grid frequency is not affected. 2) For a sudden reduction in grid power, the micro-grid DERs regulate their generation, utilizing the resulting drop in the local grid frequency as a signal. 3) With a resulting reduction in total power supply to the micro-grid loads, the controllable loads within the micro-grid are able to regulate their consumption and return back to normal operation once the local grid frequency stabilizes. 4) Smooth transition from islanded mode to grid connected mode can be achieved.
AB - The paper proposes an enhanced power management achieved for a smart micro-grid, by a power electronic transformer (PET), at the point of common coupling (PCC). The smart micro-grid is a set of controllable loads and distributed energy resources (DER), which supply demand of a group of customers. The proposed decentralized control strategy for the micro-grid components, utilizes the change in local grid frequency to control the active power generation and consumption within the micro-grid. The PET allows restricted active power flow to the micro-grid, at the PCC, at a desired value determined by the utilities. The simulation results are obtained to verify the operation and claims of the PET as stated below: 1) For a step disturbance within the micro-grid, the utility grid frequency is not affected. 2) For a sudden reduction in grid power, the micro-grid DERs regulate their generation, utilizing the resulting drop in the local grid frequency as a signal. 3) With a resulting reduction in total power supply to the micro-grid loads, the controllable loads within the micro-grid are able to regulate their consumption and return back to normal operation once the local grid frequency stabilizes. 4) Smooth transition from islanded mode to grid connected mode can be achieved.
KW - Distributed energy resources
KW - Matrix converter
KW - Power Electronic Transformer
KW - Smart micro-grid
UR - http://www.scopus.com/inward/record.url?scp=82855169101&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=82855169101&partnerID=8YFLogxK
U2 - 10.1109/PES.2011.6039396
DO - 10.1109/PES.2011.6039396
M3 - Conference contribution
AN - SCOPUS:82855169101
SN - 9781457710018
T3 - IEEE Power and Energy Society General Meeting
BT - 2011 IEEE PES General Meeting
T2 - 2011 IEEE PES General Meeting: The Electrification of Transportation and the Grid of the Future
Y2 - 24 July 2011 through 28 July 2011
ER -