Virtual Inertia Control and Small-Signal Stability Analysis of Electric Vehicle
عنوان مقاله: Virtual Inertia Control and Small-Signal Stability Analysis of Electric Vehicle
شناسه ملی مقاله: JR_IECO-6-4_002
منتشر شده در در سال 1402
شناسه ملی مقاله: JR_IECO-6-4_002
منتشر شده در در سال 1402
مشخصات نویسندگان مقاله:
Mehran Jami - Assistant professor, Marivan Branch, Islamic Azad University
خلاصه مقاله:
Mehran Jami - Assistant professor, Marivan Branch, Islamic Azad University
In electric vehicles (EVs), the small size of the dc link capacitor results in significant voltage deviations when there are changes in load or uncertain fluctuations from the power resources. This causes a decline in voltage quality. To address the issue of low inertia, this study suggests the use of a fast-responding energy storage system, such as a supercapacitor (SC), which can replicate inertial responses through a specified control algorithm. A virtual capacitor and a virtual conductance are presented in this paper, which are implemented in the inner loop control, specifically the current loop control of SC, to effectively emulate inertia and damping and improves the battery lifetime by reducing the rate of charge and discharge. To assess the stability of the EV, a comprehensive small-signal model is developed, and the acceptable range of inertia response parameters is determined through eigenvalues analysis of the system. Numerical simulations are conducted to demonstrate the performance of the proposed control structure.
کلمات کلیدی: Electric Vehicle, Energy Storage System, small-signal model, stability, Virtual Inertia
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1878103/