Article

GSTF Journal of Engineering Technology (JET)

, 2:4

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Effectiveness of Reactive Power Capability of Photo Voltaic Inverters to Maintain Voltage Profile in a Residential Distribution Feeder

  • M N KabirAffiliated withQueensland University of Technology, School of Electrical Engineering and Computer Science Email author 
  • , Y MishraAffiliated withQueensland University of Technology, School of Electrical Engineering and Computer Science

Abstract

Abstract—Large penetration of rooftop PVs has resulted in unacceptable voltage profile in many residential distribution feeders. Limiting real power injection from PVs to alleviate over voltage problem is not feasible due to loss of green power and hence corresponding revenue loss. Reactive capability of the PV inverter can be a solution to address over voltage and voltage dip problems to some extent. This paper proposes an algorithm to utilize reactive capability of PV inverters and investigate their effectiveness for voltage improvement based on R/X ratio of the feeder. The length and loading level of the feeder for a particular R/X ratio to have acceptable voltage profile is also investigated. This can be useful for suburban design and residential distribution planning. Furthermore, coordination among different PVs using residential smart meters via a substation based controller is also proposed.

Index Terms

Photo Voltaic (PV) Peak demand Rural networks Voltage profile