Hydraulic pitch control system for wind turbines: Advanced modeling and verification of an hydraulic accumulator

Modeling and control of an open accumulator Compressed Air Energy Storage (CAES) system for wind turbines

This paper presents the modeling and control for a novel Compressed Air Energy Storage (CAES) system for wind turbines. The system captures excess power prior to electricity generation so that electrical components can be downsized for demand instead of supply. Energy is stored in a high pressure dual chamber liquid-compressed air storage vessel. It takes advantage of the power density of hydra...

Hydraulic Motor Driving Variable-Pitch System for Wind Turbine

The present hydraulic variable-pitch mechanism of wind turbine uses three hydraulic cylinders to drive three crank and connecting rod mechanisms respectively; the blades are moved with the cranks. The hydraulic variable-pitch mechanism has complex structure, occupies a lot of space and its maintenance is trouble. In order to make up for the shortcomings of hydraulic cylinder variable-pitch syst...

Mathematical Modelling of a Hydraulic Accumulator for Hydraulic Hybrid Drives

Hydraulic Control Technology for Wind Turbine Generators

Extra efficiency in manufacture, operation and maintenance

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...