Improving Dynamic Performance of Automatic Generation Control of Interconnected Power System by Combing Parallel EHV AC/ HV DC link

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Provided by: International Journal of Innovative Research in Electrical, Electronics, Instrumentation and Control Engineering (IJIREEICE)
Topic: Hardware
Format: PDF
In this paper, the authors deal with load frequency control of 2 area interconnected thermal power systems with EHVAC/HVDC links when subjected to small step load perturbations. For the present study, power system model consists of two areas thermal power plants having identical capacity. The system interconnection is considered namely EHVAC transmission link only and EHVAC in parallel with HVDC transmission link. The HVDC link is considered to be operating in constant current control mode. To carry out the investigations, optimal AGC regulators are designed using proportional plus-integral control strategy and implemented on the system under consideration in the wake of 1% step load perturbation in thermal area.
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