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Research Article Open access CC BY 4.0

Impact of Stochastic Load and Hybrid Distributed Generation Penetration Level on Transient Stability of Power Systems

P. K. Olulope, K. A. Folly

Current Journal of Applied Science and Technology · pp. 1–14 · Published 21 Dec 2016

10.9734/BJAST/2016/28163

Abstract

The deployment and integration of hybrid power system into the distribution network is increasing because of the potential to provide higher quality and more reliable power to consumer than a system based on a single source. The combination of two or more energy sources and its integration into the distribution network coupled with the varying load introduce different dynamics into the system than the system with single source. The impact of stochastic load and increasing penetration of hybrid distributed generation on transient stability is presented in this paper. To investigate this impact, a detail modelling of grid connected hybrid wind/solar PV and small hydropower system with a single machine infinite system is carried out. The configuration of the proposed grid connected hybrid distributed generation (HDG) consists of a doubly-fed induction generator (DFIG), a solar PV and a small hydropower system (SHP) connected together. The wind turbine is integrated through PWM converter into the existing grid while the solar PV consists of DC sources integrated through PWM inverter and the hydro power is directly connected using a synchronous generator. The simulations were performed in DIgSILENT power factory software.

Hybrid distributed generation stochastic load critical clearing time wind turbine Solar PV hydropower system based load additional load.

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