List of Articles Amir Hosein Salemi Article 1 - Investigating the Effect of Different Penetration of Renewable Energy Resources on Islanded Microgrid Frequency Control Using a Robust Method 20.1001.1.25887327.2021.5.2.2.3 Amir Hosein Tayebi Reza Sharifi Amir Hosein Salemi Faramarz Faghihi Signal Processing and Renewable Energy , Issue 2 , Year , Spring 2021