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MODELING AND SIMULATION OF HYBRID DISTRIBUTED GENERATION AND ITS IMPACT ON TRANSIENT STABILITY OF POWER SYSTEM
سال انتشار : 2013
نوع مقاله : IEEE JOURNALS & MAGAZINES
تعداد صفحات : 6
Abstract: The present grid is accommodating mixed energies
resulting into increasing complexities and instabilities. The dynamic
performance is measured by also considering the impact the
integration of new technologies such as distributed generation (DG)
and hybrid distributed generation (HDG) have on the grid. Hybrid
distributed generation with one or more renewable (stochastic) energy
sources interact with the existing grid during import and export of
power generation. This interaction contributes more fault current
therefore making the system vulnerable to instability more than a
single energy source. This study investigates the dynamic impact of
hybrid Wind/ PV/small Hydro power on transient stability. To
investigate this impact, a detail modeling of grid connected wind /
solar PV and small hydropower system with single machine infinite
system is carried out. The simulation was done in DIgSILENT power
factory software. The configuration of the proposed typical grid
connected hybrid distributed generation (HDG) consists of variable
speed Wind turbine with doubly -fed induction generator (DFIG), solar
PV and small hydropower system. The wind turbine is integrated
through PWM converter into the existing Grid while the solar PV
incorporated into the system consists of DC sources integrated through
PWM inverter and the hydro power is directly connected through a
synchronous generator.
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