International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 03 | Mar -2017
www.irjet.net
e-ISSN: 2395 -0056 p-ISSN: 2395-0072
Distribution Network Power Quality Improvement by D-STATCOM & DVR Under Various Fault Conditions Samrat Shende1, Nilesh Chamat2, Vikki Dhote3 1P.G.
Student, Department of Electrical Engineering, BIT, Ballarpur, Maharashtra, India
2Assistant
Professor, Department of Electrical Engineering, BIT, Ballarpur, Maharashtra, India
3Assistant
Professor, Department of Electrical Engineering, BIT, Ballarpur, Maharashtra, India
the quality of the power to be used. A minor variation would also lead to serious aberration and may cause the system to fail. Much of this modern load equipment itself uses electronic switching devices which then can contribute to poor network voltage quality. The beginning of competition into electrical energy supply has created greater commercial awareness of the issues of power quality while equipment is now readily available to measure the quality of the voltage waveform and so quantify the problem. Along with advancement in technology, the worldwide economy organization has evolved towards globalization and the profit margins of many activities tend to decrease. The increased sensitivity of the vast majority of processes like (industrial, services and even residential) to PQ problems turns the availability of electric power with quality a crucial factor for competitiveness in every sector of activity. The nonstop process industry and the information technology services are most significant area. In a event of even a minor disturbance the results would lead to a huge amount of financial loss and consequent loss of productivity and competitiveness.
Abstract - The concept of Flexible Alternating Current Transmission Systems (FACTs) and Custom Power has been researched extensively by researchers throughout the world and the studies suggest out that power quality is widely studied by the researchers. On the whole FACTs uses Power electronic devices and methods to control the high voltage side of the network for improving the flow of power. Custom Power Devices are mainly for low-voltage distribution, and improving poor quality of power and reliability of supply affecting entities such as factories, offices and homes. The quality of Power and Reliability are becoming important issues for critical and sensitive loads. DSTATCOM is mainly used to mitigate different faults such as Single Line to Ground (SLG) fault and Double Phase to Ground (DPG) fault and three-phase fault. The fast Response of DSTATCOM makes it the efficient solution for enhancing the power quality of the distribution system. DSTATCOM can use with different types of controllers. In this work, Simulation of Distribution STATIC Compensator (DSTATCOM) and DVR has been carried out to improve the quality of power under different abnormal conditions and results have been presented through simulations. KEYWORDS: FACTS, DSTATCOM, DVR, PQ.
2. RELATED WORK Several studies have been shown that transformer with automatic tap-changing can be used to improve voltage stabilities for both steady state and transient state stabilities. Some of these studies have investigated and are proposing new models of tap-changing transformers. A static VAR compensator used to improve the voltage stability because of the opening line in presence of induction motor or due to start induction motor or because recovery of the short circuit IM terminals or due to the heavy load capacity. With the SVC we can also use capacitors in series. C. Palanichamy and N. sundar Babu [14] presented a work on a visual package of educating preparatory transmission line series compensation. They presented that the transmission of electrical power over great distance imposes very sever economical technical limitations. Here series compensation is very effective in
Key Words: Introduction1, Related Work2, Methodology3, Experimental Results4, Conclusion5, References6 1. INTRODUCTION Power quality improvement has always been the main concern of the power engineers and in the recent year with the increased usage of the digital equipments the power quality has brought the power quality improvement to a centre stage. In the present times almost all the industries use electronic controllers which are extremely sensitive to
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