Powerflowimprovementof220kvtransmission line using static synchronous series compensator. A case of iringa- shinyanga transmission line

Abstract

 Any society's economy depends heavily on a stable
 electrical power infrastructure, and its collapse could have
 a major impact. Various studies are being conducted to
 attain the power system's dependable functioning.
 Devices from Flexible AC Transmission Systems
 (FACTS) can regulate power flow in the transmission
 system to reduce loop flows, ease congestion, and
 maximize asset use. A series FACTS device based on a
 voltage
 source,
 the
 Static
 Synchronous Series
 Compensator (SSSC) offers inductive or capacitive
 compensation that is not dependent on line current. The
 voltage is injected in quadrature with the line current by
 the SSSC, a voltage source inverter that is coupled in
 series with the transmission line. Due to the advancement
 of several mining development projects in the northwest
 (Geita, Musoma, and Shinyanga) and the economic
 growth occurring in the central (Dodoma) and
 northeastern (Arusha and Kilimanjaro) regions of
 Tanzania, the demand for electrical power has grown in
 recent years and is predicted to continue growing in the
 northern part of Tanzania. Although hydroelectric sources
 in the south provide the majority of the power for the
 north, there is an urgent need to expand the capacity for
 power transmission from the south to the north. There is a
 power shortage in the north grid as a result of rising load
 demand. The active and reactive power flow into the line
 is described in this study in order to improve the
 transmission line's power transmission capabilities and
 provide correction utilizing SSSC. Insulated gate bipolar
 transistors (IGBTs) were used in the design of a three
phase, three-level, neutral point clamped (NPC) voltage
 source converter. The Pulse Width Modulation (PWM)
 control technique was used in the design of the voltage
 source converter control circuit. Research has been done
 on the north regions' peak demand. In order to estimate
 the load for the upcoming years, the load demand forecast
 for Tanzania's northern areas has been completed in this
 article.