With the development of social economy in our nation,
electric load is facing swift growth. Our top cities are
suffered from several problems of electricity supply.
Taking Fujian province as example, the quantity of its
social electricity consumption will reach as high as
171.5GW in 2012, increasing 13% compared with the
same period of last year.[lj Constant increasing of electricity demand not only brought challenges to
electricity grid in aggregate quantity of electric load, but
also raised the difficulty of distribution and regulating.
However, the huge increasing of air conditioning is one
of the main reason related to the climbing peak load, so
doing research on how to reduce central air-conditioning
load rationally and effectively has significance towards
releasing the conflict between electricity supplying and
demanding in the period of peak load.
In order to release the grim condition of constant
growing of air conditioning load in peak load period, lots
of professors and experts from related areas have already
done deeply research about controlling of air
conditioning load and reducing peak load. There are three
main measures to deal with air conditioning load, first
one is ameliorating equipments and using air
conditioning which is more effective and saving energy,
second one is using ice storage air conditioning to stagger
power consumption, third one is pushing the technology
of periodic stopping of central air conditioning. Practice
has proved that application of the first two measures
hasn't achieved success abroad because of large
investment of equipments and long payback period of
investment, however, the third one lacks of feasibility
analysis of foundation because of its systematization and
complexity.
Above all, the first problem we are forcing on is
establishing research strategy about drawing up a rational
duty cycling plan, which includes grouping air
conditioning units and setting the space of periodic
stopping. We will serve it in the second part of this article.
The second problem is designing an operable
experimental scheme about periodic stopping of central
air conditioning, and we discuss it in this article's third
part. At last, simulating the experimental scheme and
doing further discussion about the result.