TY - GEN
T1 - Current control techniques for applications in virtual synchronous machines
AU - Tamrakar, Ujjwol
AU - Tonkoski, Reinaldo
AU - Zhen, Ni
AU - Hansen, Timothy M.
AU - Tamrakar, Indraman
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/5
Y1 - 2016/10/5
N2 - Various current control techniques for implementation in virtual synchronous machines (VSM) are compared. MATLAB\Simulink simulations are performed for different control approaches like the proportional-integral control, the proportional-resonant control and the hysteresis control to control the output current of a grid connected inverter. The techniques are compared on the basis of the steady state error produced, transient performance, harmonics content and hardware implementation aspects. The steady state error was found to be zero in all the techniques. Proportional-integral control technique showed good harmonic rejection with a low total harmonic distortion of 0.40%, but the transient performance had an overshoot of about 30%. The proportional resonant control technique and the hysteresis control technique had slightly higher total harmonic distortion of 1.31% and 0.89%, respectively, but the overshoot was low compared to the proportional-integral control. The simulation results indicate that the PR controller is the suitable technique for current control in virtual synchronous machines, both from the point of view of the ease of implementation and performance.
AB - Various current control techniques for implementation in virtual synchronous machines (VSM) are compared. MATLAB\Simulink simulations are performed for different control approaches like the proportional-integral control, the proportional-resonant control and the hysteresis control to control the output current of a grid connected inverter. The techniques are compared on the basis of the steady state error produced, transient performance, harmonics content and hardware implementation aspects. The steady state error was found to be zero in all the techniques. Proportional-integral control technique showed good harmonic rejection with a low total harmonic distortion of 0.40%, but the transient performance had an overshoot of about 30%. The proportional resonant control technique and the hysteresis control technique had slightly higher total harmonic distortion of 1.31% and 0.89%, respectively, but the overshoot was low compared to the proportional-integral control. The simulation results indicate that the PR controller is the suitable technique for current control in virtual synchronous machines, both from the point of view of the ease of implementation and performance.
KW - Current Control
KW - Grid connected inverter
KW - Power system stability
KW - Virtual synchronous machine
UR - http://www.scopus.com/inward/record.url?scp=84994157819&partnerID=8YFLogxK
U2 - 10.1109/ICPES.2016.7584166
DO - 10.1109/ICPES.2016.7584166
M3 - Conference contribution
AN - SCOPUS:84994157819
T3 - 2016 IEEE 6th International Conference on Power Systems, ICPS 2016
BT - 2016 IEEE 6th International Conference on Power Systems, ICPS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 6th IEEE International Conference on Power Systems, ICPS 2016
Y2 - 4 March 2016 through 6 March 2016
ER -
