Asian Journal of Engineering and Technology Innovation

A survey on Voltage Factor in Smart Grids

Ranjitha K and Malikarjuna M

School of Computing and Information Technology Reva University Bangalore, India

Abstract

The key characteristics of hybrid grid systems are operational performance in transmission, optimization of the hybrid, reliability of the system and efficiency of transmission. With the tremendous increase in amount of distributed generation in distributed networks new voltage control algorithms and schemes related to voltage control are necessary to co-operate. The linearized dependencies between the voltage magnitude and the active and reactive power consumption are the factors on which newly proposed voltage control algorithms are based on. Normally these linearized dependencies are obtained by algorithms, based on accurate grid topology information. These facts are typically missing, inaccurate, unavailable or incomplete due to the traditionally passive operation of low voltage distribution networks, therefore the proposed work introduces a methodology to extract these information based on historical smart meter data only. No grid topology information is required. The proposed scheme incorporates to the changing load conditions in the network. Practical laboratory data is utilized to validate the proposed method in reality. The voltage management strategy was implemented with the obtained voltage sensitivity factors for the laboratory grid.

Keywords:

Smart grids, grid identification, load flow, sensitivity analysis, smart metering, voltage control.