A simple digital control algorithm for three phase shunt active filter: simulation and experimentation

doi:10.1007/s11708-013-0288-0

Front Energ

2014, Vol. 8

Issue (1) : 119-128 https://doi.org/10.1007/s11708-013-0288-0

RESEARCH ARTICLE

A simple digital control algorithm for three phase shunt active filter: simulation and experimentation

Subbaraman SRINATH¹(

), Chandan KUMAR², M. P. SELVAN²(

)

1. Department of EEE, Velammal Engineering College, Chennai 600066, India; 2. Department of EEE, National Institute of Technology, Tiruchirappalli 620015, India

Download: PDF(720 KB) HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract

A novel and simple i_freal control algorithm using digital signal processor (DSP) has been proposed and realized for a three phase shunt active filter (SAF). The simulation and prototype construction of SAF is conducted to compensate the reactive power and harmonics in a distribution system. The major feature of the proposed i_freal algorithm is that it does not require unit vector templates and any transformations for the reference current generation of SAF. This reduces the computational complexity and makes the control flexible and faster. The simulation is conducted in MATLAB/SIMULINK while DSP TMS320LF2407 is employed in the digital implementation of hysteresis current control (HCC) for experimentation. The hardware results correlate with the simulation results in reducing the total harmonic distortion (THD) of the source current and achieving unity power factor.

Keywords shunt active filter (SAF) power quality voltage source inverter (VSI) digital signal processor (DSP) total harmonic distortion (THD) power factor improvement

Corresponding Author(s): SRINATH Subbaraman,Email:srinaths_1976@yahoo.com; SELVAN M. P.,Email:selvanmp@nitt.edu

Issue Date: 05 March 2014

Cite this article:

Subbaraman SRINATH,Chandan KUMAR,M. P. SELVAN. A simple digital control algorithm for three phase shunt active filter: simulation and experimentation[J]. Front Energ, 2014, 8(1): 119-128.

URL:

https://academic.hep.com.cn/fie/EN/10.1007/s11708-013-0288-0
https://academic.hep.com.cn/fie/EN/Y2014/V8/I1/119

Fig.1 Distribution network with shunt active filter

Fig.2 Block diagram of the proposed control algorithm implemented in DSP controller

Fig.3 Hysteresis current control technique

Fig.4 Simulation block diagram of three phase shunt active filter

Fig.5 Experimental setup of distribution system with SAF

Fig.6 Flowchart of the hysteresis current control technique implemented in DSP TMS320LF2407A

Fig.7 Source voltage of uncompensated system
(a) Simulation result; (b) experimental result

Fig.8 Load/Source current without SAF
(a) Simulation result; (b) experimental result

Fig.9 Supply voltage and supply current for the uncompensated distribution system (Distorted source current lags the supply voltage)
(a) Simulation result; (b) experimental result

Fig.10 Harmonic spectrum of source current before compensation
(a) Simulation result; (b) experimental result

Fig.11 Reference current with upper and lower hysteresis bands (during SAF compensation)
(a) Simulation result; (b) experimental result

Fig.12 Source voltage and injected current from SAF during compensation (Injected current from SAF leads the supply voltage)
(a) Simulation result; (b) experimental result

Fig.13 Compensated source current and source voltage (Source current in phase with the supply voltage (unity power factor conditon))
(a) Simulation result; (b) experimental result

Fig.14 Three phase source current after compensation (Sinusoidal source current while SAF is in action)
(a) Simulation result; (b) experimental result

Fig.15 Harmonic spectrum of source current after compensation
(a) Simulation result; (b) experimental result

[1]	Illia DIAHOVCHENKO, Vitalii VOLOKHIN, Victoria KUROCHKINA, Michal ŠPES, Michal KOSTEREC. Effect of harmonic distortion on electric energy meters of different metrological principles[J]. Front. Energy, 2019, 13(2): 377-385.
[2]	Przemyslaw JANIK, Grzegorz KOSOBUDZKI, Harald SCHWARZ. Influence of increasing numbers of RE-inverters on the power quality in the distribution grids: A PQ case study of a representative wind turbine and photovoltaic system[J]. Front. Energy, 2017, 11(2): 155-167.
[3]	H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR. Robust switched fractional controller for performance improvement of single phase active power filter under unbalanced conditions[J]. Front. Energy, 2016, 10(2): 203-212.
[4]	J. JAYACHANDRAN,R. MURALI SACHITHANANDAM. Performance investigation of artificial intelligence based controller for three phase four leg shunt active filter[J]. Front. Energy, 2015, 9(4): 446-460.
[5]	M. BENADJA,S. SAAD,A. BELHAMRA. Rapid transaction to load variations of active filter supplied by PV system[J]. Front. Energy, 2014, 8(3): 335-344.
[6]	Salim CHENNAI,M-T BENCHOUIA. Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques for all voltage disturbances compensation[J]. Front. Energy, 2014, 8(2): 221-239.
[7]	Akhil GUPTA,Saurabh CHANANA,Tilak THAKUR. Power quality investigation of a solar PV transformer-less grid- connected system fed DVR[J]. Front. Energy, 2014, 8(2): 240-253.
[8]	Ling Ai WONG,Hussain SHAREEF,Azah MOHAMED,Ahmad Asrul IBRAHIM. Novel quantum-inspired firefly algorithm for optimal power quality monitor placement[J]. Front. Energy, 2014, 8(2): 254-260.
[9]	Geethanjali PURUSHOTHAMAN, Vimisha VENUGOPALAN, Aleena Mariya VINCENT. Real-time simulation platform for photovoltaic system with a boost converter using MPPT algorithm in a DSP controller[J]. Front Energ, 2013, 7(3): 373-379.

Viewed

Full text

Abstract

Cited

Shared

Discussed