Assessment and Impact of VAR Injection Devices on System Parameters before 100% Renewable Grid

Research carried contains analysis of test network over the inclination of authority towards providing var compensation at higher voltage with respect to distributed pattern of reactive compensation made available at load end. Sectionalized scenario of 39 bus network (a part of North-Regional Indian Grid) having two 400 kV, five 220 KV and sixteen 132 KV stepping down to sixteen 33 kV Grid substations are modeled. Analytics of reactive power penetration at different voltage level is carried out. Because currently utilities are hampered by jumbled way of network compensation during peak hours causing the role of voltage-controlled devices questionable. Exactly now substation run the equipment's as guided from load dispatch centers. Large grid investments unable to identify the desired amount of reactive power penetration to compensate from the utility end. These untracked observations are collected as vulnerable results at utility end, as it causes poor voltage profile, raised losses, abrupt tripping and unnecessary heating of elements. Thus, load flow studies to judge the Capacitive/Inductive needs at the component end by placing fictious generator is carried out. Peak and off-peak studies for a load of 370 MW is underlined hereby to judge the variance in var behavior for different amount of compensation made. Also, to build a program for var assessment important markups for static and dynamic var compensation planning are suggested. Its impact on power system elements is carried out with different proposals