“…The general procedure used in LP-based SCOPF solution is to piecewise linearize the cost function, and linearize the power flow equation around the operating point by the Jacobian matrix. Inequality constraints and loss equation are again linearized around the operating point.Rahmouni presents two steps optimization models in[93] for solving the "Optimal Power Flow" problem in electric power systems. The result of the initial optimization model is used to start the final optimization, which is for accuracy improvement.…”