Techno-environmental impact analysis of optimally incorporated DSTATCOM and DG using modified shuffled frog leaping algorithm

In this study, a modified shuffled frog leaping algorithm (MSFLA) is formulated for the optimal placement of distributed static compensator (DSTATCOM) and distributed generation (DG) in a 33-bus distribution network (DN) with an aim to reduce line losses, improve system voltage, and decrease the environmental pollution. Voltage stability index (VSI) is applied to determine the weaker zones of the DN and considering that zones only, the optimal placement is performed. Innovative indexes are developed to measure the techno-environmental impact of these devices. In the modified version of SFLA (MSFLA), new frog leaping rules are formulated to improve the convergence characteristics of standard SFLA. The proposed MSFLA is conducted for the optimal placement of these devices at different load levels and the techno-environmental performances are accomplished to identify the most suitable device for DN. The proposed algorithm is also compared with the other algorithms to show its effectiveness.