Nguyen Viet Ngu, Le Thi Minh Tam, and Do Thanh Hieu. “CONTROL STAND ALONE THREE–PHASE PHOTOVOLTAIC SYSTEM”. UTEHY Journal of Applied Science and Technology, Vol. 28, Jan. 2021, pp. 7-12, http://jst.utehy.edu.vn/index.php/jst/article/view/398.