Multiobjective Optimal Power Flow for Static Voltage Stability Margin Improvement

New Line Voltage Stability Index (BVSI) for Voltage Stability Assessment in Power System: The Comparative Studies

“…Although the results are not optimum as obtained in hybrid-based approaches, the structure of algorithm is simple and also effectively provides the optimal results for single DG integration but not for solving multiple DGs integrations or multi-objective optimization problems. Moreover, index-based approach or also known as analytical approach or sensitive-based approach is reliable and computing efficiency algorithm which capable to provide an optimal or near-optimal global solution but lack of consideration of non-linearity and complexity of system [16]. This limitation can be solved by combining the proposed index, BVSI with a metaheuristic algorithm which formed the hybrid-based approach that will be the future work of this project.…”

“…VSIs are not only competent in identifying the critical lines and buses under both online and offline modes through static analysis or phasor measurement units, but also provide information on voltage instability or the proximity of a collapse under various loading conditions and contingencies, such as loss of generators or lines, and indicate real-time information for voltage instability through phasor measurement unit wide area measurement system (PMU-WAMS) [6][7][8][9]. The indices are also widely used as the objective function to solve various applications, such as determining the optimal location and sizing reactive power compensation (RPC) [10][11][12][13], optimal distributed generation allocation (DG) [14][15], optimal power flow [16][17][18][19], optimal reactive power dispatch in [20], optimal network reconfiguration [21], and optimal locations of PMUs [22]. The reviewed works on various applications of VSIs can be found in [23][24][25][26][27].…”