alexa Reduction of Energy Storage Requirements in Future Sma
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
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Special Issue Article

Reduction of Energy Storage Requirements in Future Smart Grid Using Electric Springs

S Priyadharshini1, Dr.B.Meenakshi2
  1. PG Scholar, Sri Sairam Engineering College, Chennai, Tamil Nadu, India
  2. Professor, Sri Sairam Engineering College, Chennai, Tamil Nadu, India
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Abstract

The electric spring is an emerging technology proven to be effective in i) stabilizing smart grid with substantial penetration of intermittent renewable energy sources and ii) enabling load demand to follow power generation. The subtle change from output voltage control to input voltage control of a reactive power controller offers the electric spring new features suitable for future smart grid applications. In this project, the effects of such subtle control change are highlighted, and the use of the electric springs in reducing energy storage requirements in power grid is theoretically proven and practically demonstrated. Unlike traditional Statcom and Static Var Compensation technologies, the electric spring offers not only reactive power compensation but also automatic power variation in non-critical loads. Such an advantageous feature enables non- critical loads with embedded electric springs to be adaptive to future power grid. Consequently, the load demand can follow power generation and the energy buffer and therefore energy storage requirements can be reduced. Circuit models are developed for two bus system with and without DVR and the corresponding simulation results are presented.Index Terms— Distributed power systems, energy storage, smart grid, stability

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