A Grid Current-controlled Inverter with Particle Swarm Optimization MPPT for PV Generators

This paper proposes a three-phase four-wire currentcontrolled Voltage Source Inverter (CC-VSI) for both power quality improvement and PV energy extraction. For power quality improvement, the CC-VSI works as a grid current-controlling shunt active power filter to compensate for harmonic and reactive power of loads. Then, the PV array is coupled to the DC bus of the CC-VSI and supplies active power to the grid. The MPPT controller employs the particle swarm optimization technique. The output of the MPPT controller is a DC voltage that determines the DC-bus voltage according to PV maximum power. The PSO method is simple and effective especially for a partially shaded PV array. From computer simulation results, it proves that grid currents are sinusoidal and inphase with grid voltages, while the PV maximum active power is delivered to loads.

Authors:

• Hanny H. Tumbelaka
• Masafumi Miyatake

Keywords:

• Active Power Filter
• MPPT
• PV Energy Conversion.

References:

[1] Borle, L., Zero Average Current Error Control Methods for
Bidirectional AC-DC Converters, PhD Thesis, 1999, Electrical and
Computer Engineering, Curtin University of Technology, Western
Australia
[2] El-Habrouk, M., M.K. Darwish, and P. Mehta, Active power filters: a
review. Electric Power Applications, IEE Proceedings-, 2000. 147(5): p.
403-413.
[3] Tumbelaka, H.H., L.J. Borle, and C.V. Nayar. Analysis of a Series
Inductance Implementation on a Three-phase Shunt Active Power Filter
for Various Types of Non-linear Loads. Australian Journal of Electrical
and Electronics Engineering, Engineers Australia, 2005. 2(3): p. 223-
232.
[4] Tumbelaka, H.H., L.J. Borle, C.V. Nayar, and S.R.Lee, "A Grid Currentcontrolling
Shunt Active Power Filter", Journal of Power Electronics,
vol. 9, no. 3, 2009, p. 365-376.
[5] Chen, Y., and Smedley, K.M., A Cost-Effective Single-State Inverter
with Maximum Power Point Tracking, IEEE Transactions on Power
Electronics, 2004, 19(5): p. 1289-1294.
[6] Castaner, L., and Silvestre, S., Modelling Photovoltaic System using
PSpice, John Wiley & Sons, 2002.
[7] Wanzeller, M.G. et.al., Current Control Loop for Tracking of Maximum
Power Point Supplied for Photovoltaic Array, IEEE Transactions on
Instrumentation and Measurement, 2004, 53(4): p. 1304-1310.
[8] Wu, Tsai-Fu et.al., PV Power Injection and Active Power Filtering with
Amplitude-Clamping and Amplitude-Scaling Algorithms, IEEE
Transactions on Industry Application, 2007, 43(3): p.731-741
[9] Grandi, G., Casadei, D., and Rossi, C., Direct Coupling of Power Active
Filters with Photovoltaic Generation System with Improved MPPT
Capability, in IEEE Power Tech Conference, 2003. Bologna, Italy.
[10] Tumbelaka, H.H., L.J. Borle, and C.V. Nayar. A New Approach to
Stability Limit Analysis of A Shunt Active Power Filter with Mixed Nonlinear
Loads. in Australasian Universities Power Engineering
Conference (AUPEC). 2004. Brisbane, Australia: ACPE. p. ID: 121
[11] Miyatake, M. et al., A Novel Maximum Power Point Tracker Controlling
Several Converters Connected to Photovoltaic Arrays with Particle
Swarm Optimization Technique, in EPE-PEMC, 2007, Aalborg.
[12] L. J. Borle, and C. V. Nayar, "Ramptime Current Control", in Conf.
Proc. 1996 IEEE Applied Power Electronics Conference (APEC-96), p.
828-834.
[13] L. J. Borle, and C. V. Nayar, "Zero Average Current Error Controlled
Power Flow for AC-DC Power Converter", IEEE Trans. on Power
Electronics, 10(1): pp. 725-732. 1995.