Smart wind farm energy storage

Do wind farms need energy storage capacity?

Considering the economic benefits of the combined wind-storage system and the promotion value of using energy storage to suppress wind power fluctuations, it is of great significance to study the optimal allocation of energy storage capacity for wind farms.

Can energy storage help integrate wind power into power systems?

As Wang et al. argue, energy storage can play a key role in supporting the integration of wind power into power systems. By automatically injecting and absorbing energy into and out of the grid by a change in frequency, ESS offers frequency regulations.

Can wind farms extend the service life of self-built energy storage?

Taking full account of the demand of wind farms to extend the service life of self-built energy storage and suppress wind power fluctuations, an optimization model of wind farm capacity configuration based on CES service is established. Through theoretical analysis and case studies, the following conclusions can be drawn:

How CES can help a wind farm?

The CES operator can aggregate idle energy storage capacity and invest in a portion of centralized energy storage devices to provide energy storage leasing service. Wind farms can lease CES to suppress wind power fluctuations, which brings new problems of energy storage capacity configuration.

Why is energy storage important in wind farms?

In wind farms, the energy storage system can realize the time and space transfer of energy, alleviate the intermittency of renewable energy and enhance the flexibility of the system. However, the high cost limits its large-scale application.

How to reduce the cost of energy storage in wind farms?

Considering whole-life-cycle cost of the self-built energy storage, leasing and trading cost of the CES and penalty cost of wind abandonment and smooth power shortage, an optimal configuration model of combined energy storage capacity in wind farms based on CES service was established to minimize the total annual cost.