Investigating the performance of photovoltaic based DSTATCOM using I cos Φ algorithm

Abstract In this paper, a three-phase three-wire Distribution Static Compensator (DSTATCOM) which is fed by Photovoltaic (PV) array or battery operated DC–DC boost converter is proposed for power quality improvement in the distribution system. The DSTATCOM consists of a three-leg Voltage Source Converter (VSC) with a DC-link capacitor. The PV array or battery operated boost converter is used to maintain the desired voltage across the DC bus capacitor to provide continuous compensation. The proposed DSTATCOM provides continuous source harmonic reduction, reactive power compensation and load compensation throughout the day. The I cos Φ controlling algorithm is proposed for three-phase three-wire DSTATCOM. The performance of the Fuzzy Logic Controller (FLC) is compared with the conventional Proportional Integral (PI) controller at AC voltage controller in I cos Φ algorithm. The fuzzy controller further reduces the source current Total Harmonic Distortion (THD) when compared with the conventional PI controller. The main advantage of this proposed system is to provide continuous compensation for the whole day. The switching of VSC will occur by comparing the reference source current with the sensed source current using hysteresis based Pulse Width Modulation (PWM) current controller. The performance of the DSTATCOM is validated using MATLAB software with its simulink and Power System Blockset (PSB) toolboxes.

[1]  H. Wayne Beaty,et al.  Electrical Power Systems Quality , 1995 .

[2]  Yu-Kang Lo,et al.  Grid-Connected Photovoltaic System With Power Factor Correction , 2008, IEEE Transactions on Industrial Electronics.

[3]  G. Bhuvaneswari,et al.  A Novel Shunt Active Filter Algorithm: Simulation and Analog circuit-based Implementation , 2006 .

[4]  T. Zaveri,et al.  Control techniques for power quality improvement in delta connected load using DSTATCOM , 2011, 2011 IEEE International Electric Machines & Drives Conference (IEMDC).

[5]  S.M. Muyeen.  Grid interfacing of a small scale DC-based wind farm using fuzzy logic controlled inverter system , 2010, The XIX International Conference on Electrical Machines - ICEM 2010.

[6]  Antonio Moreno-Munoz,et al.  Improvement of power quality using distributed generation , 2010 .

[7]  Bhim Singh,et al.  Implementation of Neural-Network-Controlled Three-Leg VSC and a Transformer as Three-Phase Four-Wire DSTATCOM , 2011 .

[8]  Hurng-Liahng Jou,et al.  Novel power converter topology for threephase four-wire hybrid power filter , 2008 .

[9]  Kamal Al-Haddad,et al.  Design and digital implementation of active filter with power balance theory , 2005 .

[10]  A. Midoun,et al.  Control of a DC/DC converter by fuzzy controller for a solar pumping system , 2011 .

[11]  Bhim Singh,et al.  New control approach for capacitor supported DSTATCOM in three-phase four wire distribution system under non-ideal supply voltage conditions based on synchronous reference frame theory , 2011 .

[12]  Hirofumi Akagi,et al.  Instantaneous power theory and applications to power conditioning , 2007 .

[13]  Wei Jiang,et al.  Modeling and simulation of Boost converter in CCM and DCM , 2009, 2009 2nd International Conference on Power Electronics and Intelligent Transportation System (PEITS).

[14]  Upal Mahbub,et al.  Synchronous detection and digital control of Shunt Active Power Filter in power quality improvement , 2011, 2011 IEEE Power and Energy Conference at Illinois.

[15]  M. Aredes,et al.  Comparisons Between the p--q and p--q--r Theories in Three-Phase Four-Wire Systems , 2009, IEEE Transactions on Power Electronics.

[16]  Mukhtiar Singh,et al.  Grid Interconnection of Renewable Energy Sources at the Distribution Level With Power-Quality Improvement Features , 2011, IEEE Transactions on Power Delivery.

[17]  Gayatri Agnihotri,et al.  Control Strategies for Distribution Static Compensator for Power Quality Improvement , 2008 .

[18]  E.R. Cadaval,et al.  Comparison of Control Strategies for Shunt Active Power Filters in Three-Phase Four-Wire Systems , 2007, IEEE Transactions on Power Electronics.

[19]  I.H. Altas,et al.  A Photovoltaic Array Simulation Model for Matlab-Simulink GUI Environment , 2007, 2007 International Conference on Clean Electrical Power.

[20]  G. Bhuvaneswari,et al.  Design, Simulation, and Analog Circuit Implementation of a Three-Phase Shunt Active Filter Using the ${\rm I}\cos\Phi$ Algorithm , 2008, IEEE Transactions on Power Delivery.

[21]  Tomonobu Senjyu,et al.  Optimal voltage control in distribution systems using PV generators , 2011 .

[22]  Arindam Ghosh,et al.  Power Quality Enhancement Using Custom Power Devices , 2002 .

[23]  Minwon Park,et al.  A novel real-time simulation technique of photovoltaic generation systems using RTDS , 2004 .

[24]  N. Rengarajan,et al.  Photovoltaic based distribution static compensator for power quality improvement , 2012 .

[25]  João L. Afonso,et al.  3-Phase 4-Wire Shunt Active Power Filter with Renewable Energy Interface , 2007 .