Algebraic identification; Algebraic method; Control problems; Control schemes; Dc brushless motors; Generalized proportional integral control; Identification scheme; Inner loops; Integration systems; Non-Linearity; Numerical simulation; Outer loop; Parameter identification; Reference signals; System Dynamics; Two stage; Algebra; Brushless DC motors; Control nonlinearities; DC motors; DC power transmission; Electric drives; Power electronics; Identification (control systems)