APPLICATION OF DOUBLE-LAYER CAPACITOR TECHNOLOGY TO STATIC CONDENSERSFOR DISTRIBUTION-SYSTEM VOLTAGE CONTROL

Static condensers may be utilized to mitigate many power quality probl ems in distribution systems. The condenser requires some type of energ y storage such as a battery, a superconducting magnetic system, or a c apacitor. The use of double-layer capacitors in static condensers is e xamined in this paper. These capacitors are characterized by high valu es of capacitance and equivalent parallel resistance and low values of equivalent series resistance. Double-layer capacitor technology is di scussed and equivalent circuit models are presented. Test results for a 2.3 V, 470 F double-layer capacitor are presented to demonstrate how operation in a static condenser may affect capacitor performance, Des ign considerations for the use of this technology in a static condense r are discussed, Operation of a static condenser employing double-laye r capacitors is illustrated using EMTP.