Power Quality is one of the major concerns in present era. With the introduction of Smart Grid, there is expected growth in both lower voltage levels (distributed generation) and in new types of consumption (for example, charging stations for electric vehicles, expanded high-speed railways, etc.). These variations in consumptions, interference between devices and power line communication, weakening of transmission grid will have adverse effects on Power Quality. Hence, continuous evaluation of electric supply system for PQ disturbances and variations has become important.
To tackle these problems a suggested solution could be a “Power Quality Park”. This park would provide power of specialised quality needed by certain industrial and commercial customers to run their facilities efficiently and effectively. This blog draws attention towards this futuristic solution of Power Quality Park for maintaining PQ in the network.
WHY DO WE NEED A PQ PARK?
The hardship of consumers will increase with the growing usage of Internet. Due to increased use of technology, shutdown and voltage fluctuations will affect consumers today more, than it did before. With employees, especially software professionals, increasingly preferring flexible working hours, steady and uninterrupted power must be provided at all times. With growing e-commerce and e-governance, there is growing need about the awareness of power quality. It would not be a surprise that years from now, electricity will be the blood pumping through the veins of our future society. To achieve this growth in a fast and cost-effective way, the 21st century’s major energy challenge of maintaining power quality will be key. Hence, power quality will become a necessity, even if it involves extra cost.
“Power Quality Park will be one of the futuristic solution for better PQ”
Power Quality (PQ) Park can be that solution which provides better PQ and thereby enhancing reliability of the network.
HOW POWER QUALITY PARK WORKS?
Power Quality park can be built and operated so as to provide different grades of power to same or different customers at different tariffs. The different grades are achieved by incorporating different devices in the park like static transfer switch (STS), diesel generator (DG), shunt active filter and series active filter. The STS with the help of coordinated control can detect the voltage of the preferred or alternate feeder and switches to the higher voltage feeder. The power will be qualified by means of the shunt active filter and series active filter which eliminates harmonics, sags or swells. In case of failure of both the feeders, the power to the critical loads will be provided by the diesel generator. For the time interval, where the DG has to start up and synchronised, the power to the most critical category will be provided by the series active filter.
“Power Quality Park will deliver high quality power than a normal utility feeder and also provide well-conditioned different quality of power by utilizing shunt and series filters”
Power Quality Park will provide below benefits to customers and utility
India too, can think of setting up such Power Quality Parks and have a healthy operating network with enhanced PQ levels. This will require support from utilities as they have been the guardians of the distribution network. Nevertheless, it can be a collaborative effort from the different energy stakeholders to work towards supplying quality of supply to its customers.
- “Time for power quality parks” by D. John Suriamouli’
- “Making Premium Power a Reality” by Michele Peel, Published on Aug 7, 2001.
- “Power quality improvement with an extended custom power park” by M.Emin Meral, Ahmet Teke
- “Consequences of poor power quality- an overview” by Sharmistha Bhattacharyya and Sjef Cobben
- “Improving power quality to meet future energy demands” by Cavin Pietzsch & Patrick Plas, published on Aug 24, 2016
- “Premium power park A review of the concept, definations and applications” by Masoud Farhoodnea
- ‘An overview of power quality issues in smart grid’ by E. Prathibha and A.Manjunath, VTU University, International Journal of Innovative Research in Advanced Engineering (IJIRAE) ISSN: 2349-2163 Volume 1 Issue 10 (November 2014)
- Design and development of mini custom power park by Manitha, Jishnu Shankar, Anjana, Visal Raveendran and Manjula Nair, Conference on Power and Energy System, 2013