Working principle of electro-hydraulic cooling energy storage system

How does hydraulic energy storage work?

In addition to the traditional energy storage methods of wind power, hydraulic energy storage can also achieve energy storage in the process of converting wind energy to electrical energy. That is, hydraulic wind turbines can convert wind energy into other forms of energy storage and then convert other energy into electrical energy, when needed.

What energy storage technology is used in hydraulic wind power?

This article mainly reviews the energy storage technology used in hydraulic wind power and summarizes the energy transmission and reuse principles of hydraulic accumulators, compressed air energy storage and flywheel energy storage technologies, combined with hydraulic wind turbines.

What is a hydraulic wind turbine energy storage system?

Perry Y. Li et al. first designed a new high-efficiency compressed air energy storage system for hydraulic wind turbines, as shown in Fig. 14. The principle is that the hydraulic power created by the pump in the nacelle drives the hydraulic transformer.

What are the functions of the energy storage system?

It also discusses the functions of the energy storage system in terms of the stabilizing speed, optimal power tracking, power smoothing, and power system frequency modulation when generating power from hydraulic wind turbines.

Can energy storage be used in hydraulic wind power?

On one hand, introducing the energy storage system into hydraulic wind power solves the problems caused by the randomness and volatility of wind energy on achieving the unit’s own functions, such as speed control, power tracking control, power smoothing, and frequency modulation control.

Why are pumped hydroelectric storage and Flywheel energy storage still important?

Technologies such as pumped hydroelectric storage, battery storage and flywheel energy storage are still mainly based on verifying the feasibility of the schemes and assessing the performance of existing structures. The reason is that the integration of these technologies with hydraulic wind turbines is in its infancy and not yet mature.