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Interactions between three-phase grid-connected voltage source converter (VSC) and ac network have been analyzed using the VSC ac-side impedance models in the dq-domain, and more recently, in the sequence domain. Both dq and sequence domain approaches ignore the effects of a network at the VSC dc-side terminals. Interactions between VSC and dc network have been similarly analyzed by ignoring the effects...
In power systems with increasing variable renewable sources, gas generation is playing an increasingly prominent role in providing flexibility to meet net-load requirements. The flexibility provided by the gas turbines in turn relies on the flexibility of the gas network. While there are several discussions on the gas network's ability in providing this operational flexibility, this has not been clearly...
The primary objective of this paper is to highlight the need for and benefits of studying the steady state and dynamic response of power systems using three phase integrated transmission and distribution (T&D) system models (hereafter referred to as hybrid models). Modeling and simulation requirements for building and analyzing hybrid models are also discussed. Finally, results from steady state...
This paper presents a multi-objective optimization model based on DC power flow to maximize the active power steady-state security region whilst minimizing the total generation cost. The stochastic and fluctuant nature of wind power is incorporated into the model as well. Regarding the cost of wind power, the concepts involving opportunity costs of wind power shortage and surplus are introduced in...
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