TY - GEN
T1 - Improving transient stability of photovoltaic-hydro microgrids using virtual synchronous machines
AU - Tamrakar, Ujjwol
AU - Galipeau, David
AU - Tonkoski, Reinaldo
AU - Tamrakar, Indraman
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/31
Y1 - 2015/8/31
N2 - Transient stability of photovoltaic-hydro microgrid systems is poor due to lack of inertia and the intermittent nature of photovoltaic systems. The stability of such systems can be improved by using virtual synchronous machines which add inertia into the system to allow for higher PV penetration without losing stability. A PV-hydro system was simulated in MATLAB/Simulink to analyze the transient stability problems due to PV fluctuations and/or load or generation changes. Virtual synchronous machine was added which reduced the frequency deviations and the high rate of change of frequency. The results indicate that the transient stability of photovoltaic-hydro microgrid systems can be improved by using virtual synchronous machines using a minimum amount of energy storage. However, the power requirements of the virtual synchronous machine's converter was found to be high compared to the overall system size. Furthermore, high PV penetration levels were achieved by adding virtual synchronous machine to the system.
AB - Transient stability of photovoltaic-hydro microgrid systems is poor due to lack of inertia and the intermittent nature of photovoltaic systems. The stability of such systems can be improved by using virtual synchronous machines which add inertia into the system to allow for higher PV penetration without losing stability. A PV-hydro system was simulated in MATLAB/Simulink to analyze the transient stability problems due to PV fluctuations and/or load or generation changes. Virtual synchronous machine was added which reduced the frequency deviations and the high rate of change of frequency. The results indicate that the transient stability of photovoltaic-hydro microgrid systems can be improved by using virtual synchronous machines using a minimum amount of energy storage. However, the power requirements of the virtual synchronous machine's converter was found to be high compared to the overall system size. Furthermore, high PV penetration levels were achieved by adding virtual synchronous machine to the system.
KW - Energy storage
KW - Hydroelectric power generation
KW - Photovoltaic systems
KW - Power system stability
UR - http://www.scopus.com/inward/record.url?scp=84951320165&partnerID=8YFLogxK
U2 - 10.1109/PTC.2015.7232663
DO - 10.1109/PTC.2015.7232663
M3 - Conference contribution
AN - SCOPUS:84951320165
T3 - 2015 IEEE Eindhoven PowerTech, PowerTech 2015
BT - 2015 IEEE Eindhoven PowerTech, PowerTech 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Eindhoven PowerTech, PowerTech 2015
Y2 - 29 June 2015 through 2 July 2015
ER -
