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Security of supply of an active distribution network is constrained with increased presence of intermittent distributed generation, component outages, network constraints, change in weather patterns, and resource availability. Long term predictions of weather patterns are challenging, however, potential vulnerability of networks into change in weather patterns can be modeled with uncertainties distributing...
Wind energy is considered the most viable proposition among the renewable energy options. Of various Wind Energy Conversion Systems (WECS), fixed speed induction generator based WECS directly connected to the grid is the cheapest and simplest option and has the largest market share. This type of WECS does not require any power electronic interface to allow the grid connection unlike the variable speed...
Wind power generation is regarded as the most promising of all renewable energy supply to meet the global commitment to climate change. Of all wind power technologies, the fixed speed system employing the rugged squirrel cage induction generators (SCIGs) are the cheapest and simplest for grid connection. While the self excitable induction generator behavior in stand alone circumstances has been studied...
Ageing network assets, forced and unforced outages, and the way the networks are operated in a deregulated market are of significant concerns to integrate wind generation. This paper proposes a novel probabilistic index to quantify the distribution network spare capacity for the integration of wind generation. The index incorporates distribution network operating characteristics into the Monte Carlo...
On load tap changing transformer (OLTC) has become a vital link in modern power systems. It acts to maintain the load bus voltage within its permissible limits despite any load changes. This paper discusses the effect of different static loads namely; constant power (CP), constant current (CI) and constant impedance (CZ) on the maximum power transfer limit from the generation to the load centre through...
In this paper the impact of a synchronous generators nonlinear model on the voltage distortion of a distributed generation system is investigated. The SGs are modelled in the harmonic domain and include the space harmonics and frequency conversion. A decoupled harmonic power flow program is used for the system harmonic study. The system nonlinear loads are modelled as decoupled harmonic current sources...
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