621.3 Електричні станції, мережі і системи capacitor placement particle swarm optimization размещение конденсаторов DG placement Dehghani method SSA dice game optimizer distributed generation distribution network distribution networks distribution systems dynamic programing energy energy carrier energy carriers energy commitment energy consumption energy planning final energy consumption metaheuristic algorithm optimization algorithm power generating unit power loss minimization power system optimization sensitive index tardigrade optimization algorithm two-stage simultaneous placement unit commitment