TY - GEN
T1 - Parallel operation of virtual synchronous machines with frequency droop control
AU - Adhikari, Prabin
AU - Prajapati, Suresh
AU - Tamrakar, Indraman
AU - Tamrakar, Ujjwol
AU - Tonkoski, Reinaldo
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2018/6/15
Y1 - 2018/6/15
N2 - Studies had shown that the transient stability of a PV-Hydro micro-grid could be improved using a virtual synchronous machine (VSM), by injecting virtual inertia into the system. In the case of an interconnected system with multiple numbers of PV-Hydro micro-grid, a number of VSMs need to be operated in parallel. The parallel operated VSMs shall share the transient load in proportion to their respective capacities. Otherwise, the storage battery of one VSM will discharge more and other storage battery will be less discharged. This paper presents a control logic for parallel operated VSMs so that they share the transient load in proportion to the capacity of respective VSMs. Frequency droop control approach is used in the control logic to ensure proper load sharing. The control logic is simulated in MATLAB\ Simulink and results show that the frequency droop control approach is good enough for parallel operation of VSMs.
AB - Studies had shown that the transient stability of a PV-Hydro micro-grid could be improved using a virtual synchronous machine (VSM), by injecting virtual inertia into the system. In the case of an interconnected system with multiple numbers of PV-Hydro micro-grid, a number of VSMs need to be operated in parallel. The parallel operated VSMs shall share the transient load in proportion to their respective capacities. Otherwise, the storage battery of one VSM will discharge more and other storage battery will be less discharged. This paper presents a control logic for parallel operated VSMs so that they share the transient load in proportion to the capacity of respective VSMs. Frequency droop control approach is used in the control logic to ensure proper load sharing. The control logic is simulated in MATLAB\ Simulink and results show that the frequency droop control approach is good enough for parallel operation of VSMs.
KW - Energy storage
KW - PV-Hydro micro-grid
KW - Power electronic controller
KW - Power system stability
UR - http://www.scopus.com/inward/record.url?scp=85049887268&partnerID=8YFLogxK
U2 - 10.1109/ICPES.2017.8387278
DO - 10.1109/ICPES.2017.8387278
M3 - Conference contribution
AN - SCOPUS:85049887268
T3 - 2017 7th International Conference on Power Systems, ICPS 2017
SP - 116
EP - 120
BT - 2017 7th International Conference on Power Systems, ICPS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 7th International Conference on Power Systems, ICPS 2017
Y2 - 21 December 2017 through 23 December 2017
ER -
