“…• Fast, accurate, linear technique applicable to radial/non-radial grid-connected/islanded systems: Some researchers modelled the primary-level droop control in their works [7,9,10,12,17]. However, all these papers used iterative techniques such as Newton-Raphson method [17], backward-forward algorithm [9], and trust region method [7,10]. The method proposed in this paper solves a set of linear algebraic equations, and hence, there is no need for calculating the Jacobian elements.…”