Method and software for coordinated tuning of power system regulators

Systematic approach to consider system contingencies in PSS design

“…As described in References [8][9][10][11][12], the goal of PSS tuning is to make all eigenvalues satisfy some criteria, for example, all eigenvalues should satisfy the following inequations:…”

“…The classical PSS with lead/lag structures and fixed parameters has been widely used in power systems [2][3][4][5][6][7][8][9][10][11][12]. Several approaches have been proposed for this type PSS parameter adjustment and damping controller design, such as damping torque approach [4,5], sensitivity analysis [6,7], etc.…”

“…Some of these PSS design methods are sequential methods, which can only consider the damping enhancement of just one critical electro-mechanical mode at a time. A number of approaches for coordinated tuning of PSS based on parameter optimization models have been proposed [8][9][10][11][12]. In these approaches, classic nonlinear optimization or modern heuristic optimization methods are employed to perform PSS tuning under some stressed load conditions and then the performance of the tuned PSS is verified via time domain simulation at a given set of credible contingencies.…”

Multi-machine power system stabilizer design by rule based bacteria foraging

“…However, the limitation of such a design is that the stabilizer designed to damp out one mode may destabilize other modes of the system. In another scheme, a gradient-based optimization method is adopted [8]. Unfortunately, the problem of PSS design is a multi-modal problem and the gradient techniques might fail by getting trapped in one of the local optima.…”

A New PSS Tuning Technique Using ICA and PSO Methods with the Fourier Transform

“…If parameters of PSS are tuned by speed deviation in each generator when a disturbance occurs at a bus or line, the power system will have a good performance. Hence, several PSS design techniques are reported in literature, a few are listed in the references [1][2][3][4][5][6][7][8][9][10][11]. The mentioned local optimization techniques providing the optimum PSS parameters need a target function.…”