Power System Dynamic Stability Improvement Using PSS Equipped with Microcontroller

International Journal of Smart Electrical Engineering

دوره 10، شماره 02، شهریور 2021، صفحه 67-76   

نوع مقاله: Research Paper

شناسه دیجیتال (DOI): 10.30495/ijsee.2021.683681

نویسندگان

Azade Abedini¹؛ Ghazanfar Shahgholian^{* 2}؛ Bahador Fani¹

¹Najafabad Branch, Islamic Azad University, Najafabad, Iran

²Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

چکیده

In assessing the power system, the most important issue is the system behavior when the system is affect‌ed by a disturbance In some plants in case a small event, oscillations are created that are not easily damped and this lack of damping causes the power plant shut down. So, conditions should be set such that the power plant damps the oscillations as soon as possible and returns it to the stable conditions. In this paper, microcontroller-based power system stabilizer (PSS) is designed that increases the single machine dynamic stability of the power system connected to an infinite bus by improving damping in the low frequency oscillation. The system stability is investigated by the eigenvalues and the results of dynam‌ic simulations are provided in the time domain. Programmable interface controllers (PIC) have been used in designing digital PSS; then the continuous time domain PSS is converted to discrete time domain PSS and finally it is implemented on the microcontroller chip.

کلیدواژه‌ها

Digital design؛ Eigenvalues؛ Microcontroller؛ Power system stabilize