Promotion of Power Supply Stability
Owing
to continuous economic growth, booming growth of industry and
commerce, the upgrading of people’s living standard, etc., the
demand on electricity has developed from merely “having” power to
having “stable and reliable” power. To stabilize power supply
system quality, the company specially set up a committee to take the
responsibility of ① making decisions on the improvement measures
for power system stability and reliability and ② reviewing and
following-up measures for strengthening power system stability. Measures
for power supply stability include: ① undertaking reasonable,
effective and safe power dispatch, ② simplifying the scales of
power voltages, ③ upgrading distribution voltages, ④ adding
high-efficiency (over 40%) combined-cycle units to the power system,
⑤ balancing regional power demand, ⑥ conducting load management -
implementing time-of-use and seasonal rates, interruptible power
rates and promoting ice-storage central air conditioning system, ⑦
installing transmission facilities, ⑧ strengthening power theft
control, etc. In
addition to executing the annual plans of power supply and
distribution system expansion to increase power supply capacity and
strengthen load management, the company has also been actively
implementing feeder automation system projects. It is in an effort to
control system operation status to effectively reduce outage time and
range. The
major advantages of implementing the distribution feeder automation
system are to reduce ① outage duration from 60 minutes to lower
than 5 minutes and ② fault location time and effort. The priority
areas for implementing the feeder automation system include science
parks, industrial zones, popular areas in cities and counties,
tourist scenic spots, and important government facilities. In 2007,
Taipower accomplished the goal of installing 2,110 feeders. It is
planned to install over 50% of the overall automatic feeders for the
distribution system. The company listed power supply reliability as its important annual management index. Its goal is to reduce SAIDI (System Average Interruption Duration Index) and SAIFI (System Average Interruption Frequency Index) to pursue excellent power supply quality. |