Informatics Publishing Limited

V. Anuja ¹, A. Peer Fathima ²

Affiliations
1 Department of Electrical and Electronics Engineering, Easwari Engineering College, Chennai-89, IN
2 Department of Electrical and Electronics Engineering, Easwari Engineering College, Chennai-89., IN

Abstract

This paper proposes a method of power flow control using Static Synchronous Compensator (STATCOM). It has been demonstrated that the STATCOM has the capability of regulating the voltage and minimizing the power losses simultaneously. A suitable model of STATCOM is incorporated in a general program developed in MATLAB. Newton Raphson Algorithm has been used for power flow analysis. The Placement of STATCOM for optimal power flow control is demonstrated on an IEEE-14 Test Bus System. Results with and without STATCOM have been illustrated. PV and QV curves have been drawn for voltage stability analysis. The hardware model of STATCOM was also presented.

Keywords

STATCOM, IEEE14 Bus, Newton-Raphson, FACTS Controller, Power Flow, Voltage Stability.

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D. Megala ¹, A. Peer Fathima ¹, P. Marshall Arockia Dass ¹

Affiliations
1 Department of Electrical and Electronics Engineering, Easwari Engineering College, Chennai-89, IN

Abstract

The UPFC is the most versatile FACTS controller developed so far, with all encompassing capabilities of voltage regulation, series compensation, and phase shifting. It also brings in new challenges in power electronics and power system design. A simulation model of a single phase UPFC is designed and drawn in MATLAB-Simulink. UPFC offers advantages in terms of dynamic operation of power system by incorporating PI and Fuzzy controller. The Hardware model is developed for UPFC using rectifier and inverter circuits with the help of MOSFET. The experimental results are compared with the simulation results.

Keywords

Fuzzy Controller, IEEE 5 Bus System, PI Controller, Power Flow Analysis, Unified Power Flow Controller, Voltage Sag Compensation.

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P. Marshall Arockia Dass ¹, A. Peer Fathima ¹, M. Karpagam , N. Devarajan

Affiliations
1 Department of Electrical and Electronics Engineering, Easwari Engineering College, Ramapuram, Chennai-89, IN

Abstract

This paper deals with Distribution Static Synchronous compensator (DSTATCOM), which aim at the integration of shunt-active filters. The main purpose of a DSTATCOM is to compensate for voltage flicker/imbalance, reactive power, Voltage Sag, voltage swell, negative sequence current, and harmonics. In other words, the DSTATCOM has the capability of improving power quality at the point of installation on power distribution systems or industrial power systems. This paper discusses the control strategy of the DSTATCOM, with a focus on the flow of instantaneous active and reactive powers inside the DSTATCOM. The present work discusses the compensation principle and different control strategies (PI, FUZZY) of the DSTATCOM in detail. The control strategies are modeled using MATLAB/SIMULINK. The performance is also observed under influence of utility side disturbances such as sag, swell, flicker and spikes. The simulation results are listed in comparison of different control strategies and for the verification of results.

Keywords

Active Filters, Power Conditioners, Power Quality, Voltage Flicker, Voltage Imbalance and Voltage Sag.

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