Research on Key Technologies of Energy Storage Composite Condenser
Aiming at the problems of inertia imbalance,reactive power imbalance,and insufficient support capacity of active power and frequency of new energy stations,an energy storage composite condenser combining flywheel energy storage technology and doubly-fed motor technology was proposed.The condenser combined with lithium battery energy storage,to improve the frequency modulation speed and capacity of the system.Compared with the synchronous condenser,the power adjustment can be carried out in a large speed range by using slip.Under the same inertia,the power adjustment time of the energy storage composite condenser is longer,which is more conducive to enhance the stability of the power system.The simulation results show that it has good power regulation characteris-tics.When applied in power system,it can realize power generation,energy storage,phase modulation and other functions at the same time.It can also realize bidirectional and rapid adjustment of active power and reactive power at the same time.
energy storage composite condenserDoubly fed induction motorFlywheel energy storageSynchronous condenser
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