HYDAC products we supply
We can supply any HYDAC product with our warehouse holding stock of many different systems at any one time.
✔ Filter elements
✔ Hydraulic accumulators
✔ Manifolds, housing
✔ Solenoid Coils
✔ Gear pumps
✔ Gear pump kits
✔ Heat exchangers/coolers
✔ Couplings for fluid
Wind power applications
After the nominal speed has been reached on the generator (nominal performance), the optimum setting angle of the rotor vanes is modified individually as the rpm increases, thus worsening the degree of aerodynamic efficiency. As a result, the rpm is slowed down while the operating point of the generator torque is maintained. This procedure is referred to as pitching.
Gears are positioned in front of the generator. In order to generate electrical energy, the asynchronous or synchronous generators must be kept at a constant rpm. Because of the slowly turning rotors, transmission ratio is used to bring the rpm up to the maximum required generator rpm. HYDAC lubrication and cooling systems ensure safe and reliable availability of the gears.
The generator of a wind power plant converts the mechanical energy of the rotor movement into electrical energy. However, fluctuating wind speeds cause the alternating current generated by the generator to also be subject to fluctuations. In order to be able to feed electrical energy into the electrical network, this electricity is treated with a converter for the supply network. The heat which arises during this process is channeled away through a cooling system.
Separate cooling circuits are strived for with the transformer cooling system, because here a separation of the surroundings and ambient air with all types of contaminations (dust, salt-bearing air, particles, etc.) from the interior, enclosed cooling circuit can be secured.
The hydraulic pressure supply to the brake systems is supplied, either centralized or decentralized, by HPU (Hydraulic Power Units). The drive train brake acts on a brake disk connected by either shaft or coupling and acts as the secondary braking system in wind power plants which have a pitch system. Due to safety considerations, bolts or slides are locked by means of hydraulic cylinders for maintenance work in or on the rotor. The engine house is maintained in position by means of an azimuth brake system. Compact hydraulic power units supply energy for the hydraulic brake systems.
The rotation of the gondola on the tower is implemented by means of either electrical or hydraulic actuation. In the case of hydraulic actuators, this energy is also drawn from the hydraulic system. On hydraulic drives, these also receive their energy from the hydraulic system.
The robust and modular design of the mounting systems which were specially developed for this application ensures an installation of the power cables in the tower which is not only simple and professionally correct but also optimized in terms of both time and expenditure, with "lying tower" pre-installation and final installation in the "erected tower". The modular system also permits great flexibility with respect to quantity and alignment (individual, bundles of three, static, flexible) of the power cables in the tower, in the transition to the gondola, to the loop and also in the engine house.
HYDAC BrochuresFluid Care Laboritory - Services Manual
Components, Systems and Service for Wind Turbines
Fluid Technology, Hydraulics and ElectronicsWorldwide.
For more information about any HYDAC products, please contact the team on 0141 886 1220 or email firstname.lastname@example.org.
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With over 20 years experience in wind turbine maintenance and parts supply, we have the technical expertise to help you reduce costs whilst maximising availability levels.
Renewable Parts Ltd,
Westways Business Park
Renewable Parts Ltd,Old Ambulance Station,School Brae, Lochgilphead,Argyll, ScotlandPA31 8LE