What is a hydraulic wind turbine generator?

The hydraulic wind turbine generator is mainly composed of hydraulic pump, hydraulic motor and synchronous generator . The working principle is shown in Fig. 2.

How hydraulic equipment is needed for wind power generation?

First of all, the high power development trend of wind power generation requires supporting hydraulic systems. At present, there are few hydraulic equipment that can meet this requirement, especially megawatt level hydraulic pumps and hydraulic motors.

How hydraulic technology is applied in wind energy?

With the development of hydraulic components and the growing size of wind power generation, hydraulic technology has gradually been applied in wind energy, such as the hydraulic pitch system 2 listed in Table 1, the hydraulic braking system, 3 and hydraulic transmission system 4, 5 depicted in Table 2.

How can hydrostatic wind turbines increase power generation?

Dutta et al. [142, 143] proposed a rule-based energy storage control strategy, and the research results showed that in a 50 kW hydrostatic wind turbine, the annual power generation can be increased by 4.1% by using a 60-L hydraulic accumulator, and the hydraulic energy storage system is shown in Fig. 23. Fig. 23.

How to promote the application of hydraulic wind turbine?

In order to further promote the application of hydraulic wind turbine, the research and development of high power hydraulic components is particularly important, especially the development of megawatt-level, low-speed, and high-torque hydraulic pump and hydraulic motor.

What is the role of energy storage systems in hydraulic wind turbine generators?

For the role of energy storage systems in hydraulic wind turbine generators, the following aspects can be summarized. Hydraulic accumulators play a significant role in solving the ‘fluctuation’ of wind energy. It mainly specializes in a steady system speed, optimal power tracking, power smoothing, and frequency modulation of the power systems.