Sampled Data Automatic Generation Control of a Two Area Reheat Thermal System with Modified Area Control Error
نویسنده
چکیده
This paper deals with Automatic Generation Control (AGC) of a two area reheat thermal system with modified area control error (ACEM) considering operation of the system in the continuous-mode and that of the controller in the discrete mode. ACEM is the weighted sum of frequency deviation, tie-power deviation and inadvertent interchange energy. Studies show that the AGC-strategy based on ACEM provides constancy of frequency and tie-power flow, zero steady state error in inadvertent interchange energy and negligible error in time error accumulation in the steady state. Further the dynamic responses of the system obtained with controllers based on ACEM are close to the responses based on new area control error ( ACEN Ref [2] ) but are much superior to the corresponding responses achieved with controllers based on conventional area control error.
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