سال انتشار: ۱۳۸۴

محل انتشار: بیستمین کنفرانس بین المللی برق

تعداد صفحات: ۱۱

نویسنده(ها):

Bevrani – Dept. of Electrical & Computer Eng., Kumamoto University Japan
Hiyama – Dept. of Electrical & Computer Eng., Kumamoto University Japan

چکیده:

In a deregulated environment, Loadfrequency control (LFC), as an ancillary service essential for maintaining the system reliability, acquires a fundamental role to enable power exchanges and to provide better conditions for the electricity trading. Since the LFC system is faced by new uncertainties in the liberalized electricity market, a reevaluation in traditional modeling and control structures is highly needed. In response to the coming challenge of integrating computation, communication and control into appropriate levels of system operation and control, aomprehensivescenario is proposed to perform the LFC task in a deregulated environment. As a part of the mentioned scenario, this paper addresses a new method to design of robust LFC with considering the communication delays. First the LFC problem is reduced to a static output feedback control synthesis for a multiple delays power system, and then the control parameters are easily carried out via a mixed ∞ /H H2 control technique, using a developed iterative linear matrix inequalities (ILMI) algorithm. The proposed method is applied to a 3-control area
power system and the results are compared with the recently developed ∞ H -based LFC designs.