ccording to the northwest branch of state grid co., LTD., the generating
capacity of new energy in the northwest power grid reached 787 million
kilowatt-hours on April 25, accounting for 32.39% of the total power
generation and 44.35% of the total power consumption of the whole
network on that day. Among them, wind power has the largest generating
capacity of 32.93 million kw, generating 621 million KWH. The five new
energy indexes of northwest power grid have all reached new highs.
It
is reported that the theoretical generating capacity of this new energy
day reached 888 million kilowatt-hours, and the maximum amount of wind
power in the evening peak was 32.93 million kilowatts, both of which
were the highest single-day levels in history. The northwest branch of
state grid overcame the adverse influence of the important new energy
power supply channel maintenance and other problems in the network, made
full use of the new energy flexible scheduling mechanism, planned
ahead, and took multiple measures to improve the consumption level of
new energy power generation.
According to the forecast, the
forecast accuracy of the northwest power grid's new energy day-ahead
theoretical power generation is 99.4%, and the forecast accuracy of the
evening peak wind power is 97.4%, which provides the basis for the
arrangement of the power grid operation mode.
The northwest
division of state grid arranged 23 times for the shutdown and peak-load
adjustment of thermal power units with a capacity of 8.34 million
kilowatts through the backup coordination of large power grid. The
negative standby capacity of conventional power supply was reduced to
-12.73 million kilowatts, and the new energy capacity was increased to
96.84 million KWH. Communicate with the national power dispatch and
control center of state grid co., LTD., reduce the restriction of
600,000kw on the dc power of jiquan by adjusting the operation mode of
jiquan dc. The application of intelligent coordinated control system,
automatic coordination of all kinds of power supply output, 750 kv sand
fish line, pull the official line during the maintenance of the network
important section utilization rate of more than 95%.
At the same
time, the northwest branch of state grid carried out a total of 46
transactions and auxiliary services, increasing the consumption of new
energy by 58.37 million KWH.