Application Application Case 01 APPLICATION : metropolitan area MIGEUM S/S 345kV ��100MVAr STATCOM TRANSMISSION MAP BACKGROUND How to overcome difference between power Metropolitan KEY supply and demand in metropolitan area? T N E SVC STATCOM M 80 E L P P 70 U S 60 Supply 50 & 40 30 42/ 23 6 / 12 Demand 20 10 0 Demand Supply Demand Supply 12 / 19 metropolitan None-metropolitan 32/ 26 Metropolitan ? Occupied 23% of power-supply Case ? Focused on 42% of power-demand 8 / 20 ? Use of high unit-price fuel on generation in 765kV Line 345kV Line metropolitan area, such as LNG & oil & etc.. DC�� 180kV Substation Regional 765kV Substation Power Plant ? Use of low unit price fuel on generation in 345kV Substation non-metropolitan area, such as Nuclear & Demand(%) Supply(%) Power Plant Bituminous, & Anthracite(Hard coal) & etc.. �� Improvement of voltage stabilization CUSTOMER �� Prevention of blackout NEEDS �� Adopting an eco-friendly Equipment �� Improvement of voltage-stability ? By dynamic reactive-power compensation �� Transmission-capacity expansion ? Maximazing available active power without new installation of generator EFFECTIVENESS ? Relaxing restriction on inflow of power-flow in metropolitan area by dynamic reactive-power compensation �� Economical operation of power transmission ? An decrease of 300MW generation per year FACTS based on IT SOLUTION - Migeum ��100MVA STATCOM (2009) I 12 13 STATCOM STATic Synchronous COMpensator