دانلود مقاله ISI انگلیسی شماره 43725
عنوان فارسی مقاله

مدل جدید پیوند VSC-HVDC برای شبیه سازی سیستم قدرت پویا

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
43725 2015 10 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
A novel VSC-HVDC link model for dynamic power system simulations
منبع

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

Journal : Electric Power Systems Research, Volume 126, September 2015, Pages 111–120

کلمات کلیدی
روش نیوتن رافسون - شبیه سازی سیستم قدرت پویا
پیش نمایش مقاله
پیش نمایش مقاله  مدل جدید پیوند VSC-HVDC برای شبیه سازی سیستم قدرت پویا

چکیده انگلیسی

This paper introduces a new RMS model of the VSC-HVDC link. The model is useful for assessing the steady-state and dynamic responses of large power systems with embedded back-to-back and point-to-point VSC-HVDC links. The VSC-HVDC model comprises two voltage source converters (VSC) linked by a DC cable. Each VSC is modelled as an ideal phase-shifting transformer whose primary and secondary windings correspond, in a notional sense, to the AC and DC buses of the VSC. The magnitude and phase angle of the ideal phase-shifting transformer represent the amplitude modulation ratio and the phase shift that exists in a PWM converter to enable either generation or absorption of reactive power purely by electronic processing of the voltage and current waveforms within the VSC. The mathematical model is formulated in such a way that the back-to-back VSC-HVDC model is realized by simply setting the DC cable resistance to zero in the point-to-point VSC-HVDC model. The Newton–Raphson method is used to solve the nonlinear algebraic and discretised differential equations arising from the VSC-HVDC, synchronous generators and the power grid, in a unified frame-of-reference for efficient, iterative solutions at each time step. The dynamic response of the VSC-HVDC model is assessed thoroughly; it is validated against the response of a detailed EMT-type model using Simulink®. The solution of a relatively large power system shows the ability of the new dynamic model to carry out large-scale power system simulations with high efficiency.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.