دانلود مقاله ISI انگلیسی شماره 55421
عنوان فارسی مقاله

کنترل فرکانس بار یک سیستم قدرت واقعی با تولید برق چندمنبعی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
55421 2012 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Load frequency control of a realistic power system with multi-source power generation
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : International Journal of Electrical Power & Energy Systems, Volume 42, Issue 1, November 2012, Pages 426–433

کلمات کلیدی
توربین گازی؛ محدودیت نرخ تولید ؛ کنترل فرکانس بار؛ چندمنبعی؛ کنترل بهینه
پیش نمایش مقاله
پیش نمایش مقاله کنترل فرکانس بار یک سیستم قدرت واقعی با تولید برق چندمنبعی

چکیده انگلیسی

In this paper, load frequency control (LFC) of a realistic power system with multi-source power generation is presented. The single area power system includes dynamics of thermal with reheat turbine, hydro and gas power plants. Appropriate generation rate constraints (GRCs) are considered for the thermal and hydro plants. In practice, access to all the state variables of a system is not possible and also their measurement is costly and difficult. Usually only a reduced number of state variables or linear combinations thereof, are available. To resolve this difficulty, optimal output feedback controller which uses only the output state variables is proposed. The performances of the proposed controller are compared with the full state feedback controller. The action of this proposed controller provides satisfactory balance between frequency overshoot and transient oscillations with zero steady state error in the multi-source power system environment. The effect of regulation parameter (R) on the frequency deviation response is examined. The sensitivity analysis reveals that the proposed controller is quite robust and optimum controller gains once set for nominal condition need not to be changed for ±25% variations in the system parameters and operating load condition from their nominal values. To show the effectiveness of the proposed controller on the actual power system, the LFC of hydro power plants operational in KHOZESTAN (a province in southwest of Iran) has also been presented.

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