Open Access Open Access  Restricted Access Subscription or Fee Access

Voltage Mitigation Technique for ZSI Based Interline Dynamic Voltage Restorer

P. Usha Rani, Dr.S. Rama Reddy

Abstract


The Dynamic Voltage Restorer (DVR) provides an advanced and economical solution for both voltage sag and swell problems. The voltage-restoration process involves real-power injection into the distribution system. The Interline DVR (IDVR) proposed in this paper provides a way to compensate the voltage deviation caused in a feeder. The IDVR consists of several DVRs connected to different distribution feeders in the power system sharing common energy storage. Here, one DVR in the IDVR system works in voltage-sag/swell compensation mode while the other DVR in the IDVR system operate in power-flow control mode. The single phase model of the IDVR system is illustrated which is operated by Multiple Pulse Width Modulation (PWM).A new topology based on Z-source inverter is presented in order to enhance the voltage restoration property of dynamic voltage restorer. Z-source inverter would ensure a constant DC voltage across the DC-link during the process of voltage compensation. The modeling of Z-source based dynamic voltage restorer is carried out component wise and their performances are analyzed using MATLAB software. The simulation results shows that the control technique is very effective and yields excellent compensation for voltage sag/swell mitigation.

Keywords


Power Quality, Dynamic Voltage Restorer (DVR) Interline Dynamic Voltage Restorer (IDVR), Dynamic Voltage Restorer (DVR), Interline Power Flow Controller (IPFC), Z-Source inverter (ZSI), Pulse Width Modulation (PWM), Total Harmonic Distortion (THD).

Full Text:

PDF

References


Agileswari.K.Ramaswany, Rengan Krishna Iyer, Dr. R.N.Mukherjee, ―Dynamic Voltage Restorer for Voltage Sag Compensation‖, Conference on Power Electronics and Drive Systems, Vol.2, Nov 2005, pp 1289-1294.

Ahmed Elserougi, Ahmed Hossam, Ahmed Massoud, Shehab Ahmed (2010), ― Investigation of IDVR with virtual impedance injection‖, IEEE International conference of power electronics, pp. 1975-1980.

Arindam Ghosh, Amit Kumar Jindal, and Avinash Joshi,(2004) ‗Design of a Capacitor-Supported Dynamic Voltage Restorer (DVR) for Unbalanced and Distorted loads‘ IEEE transactions on power delivery, vol. 19, no. 1.J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed., vol. 2. Oxford: Clarendon, 1892, pp.68–73.

Anil Kumar. R, Siva Kumar. G (2009) ‗Compensation of Voltage Sags and Harmonics with Phase-Jumps through DVR with minimum VA rating Using Particle Swarm Optimization‘ pp. 1361

Boonchiam. P, and Mithulananthan.N (2006) ‗Dynamic Control Strategy in Medium Voltage DVR for Mitigating Voltage Sags/Swells‘ International Conference on Power System Technology.

Carl Ngai-Man Ho (2010) ‗Implementation and Performance Evaluation of a Fast Dynamic Control Scheme for Capacitor-Supported Interline DVR‘, IEEE transactions on power electronics, vol. 25, no. 8.

Karshenas.H.R, Moradlou.M (2011), ― Design strategy for optimum rating selection of IDVR‖, IEEE Transanctions on power delivery, Vol.26, No.1, pp. 242-249.

Karshenas.H.R, Moradlou.M (2008), ― Design strategy for optimum rating selection in IDVR‖, IEEE International conference of power electronics, pp. 1919-1923.

Loh P. C, Vilathgamuwa D. M, Lai Y. S, Chua G. T, and Li Y (2004) ―Pulse-width modulation of Z-source inverters,‖ in Conf. Record IEEE Industry Applications Conference, 39th IAS Annual Meeting.

Mahinda Vilathgamuwa.D (2006) ‗A Novel Technique to Compensate Voltage Sags in Multiline Distribution System—The Interline Dynamic Voltage Restorer‘ IEEE transactions on industrial electronics, vol. 53, no. 5,pp.1603-1611.

Mahinda Vilathgamuwa.D and Wijekoon H.M (2002), ―Control and Analysis of a new DVR Circuit Topology for mitigating long duration voltage sags‖, proceedings of IEEE Industrial Electronics Conference, pp. 1105-1112.

Mahinda Vilathgamuwa. D (2004) ‗Interline Dynamic Voltage Restorer: A Novel and Economical Approach for Multiline Power Quality Compensation‘, IEEE transactions on industry applications, Vol. 40, No. 6, pp.1678-1685.

Pasin Boonchaiam and Nadarajah Mithlananthan (2006), ―Understanding of DVR through MATLAB simulation‖, Thamasat Ins. J.Sc , Vol.11, No.3, pp 1-6.

Usha Rani P. , Rama Reddy (2011), ‗Voltage Sag / Swell Compensation using ZSI based Dynamic Voltage Restorer‘, International conference on Emerging Trends in Electrical and Computer Technology, ICETECT 2011, 23rd & 24th March 2011, St. Xavier‘s Catholic College of Engineering, pp.268-273 (IEEE Xplore No. 978-1-4244-7925-2/11).

Usha Rani P. , Rama Reddy (2011), ‗Voltage Sag / Swell Compensation in an Interline Dynamic Voltage Restorer‘, International conference on Emerging Trends in Electrical and Computer Technology, ICETECT 2011, 23rd & 24th March 2011, St. Xavier‘s Catholic College of Engineering, pp.309-314 (IEEE Xplore No. 978-1-4244-7925-2/11).


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.