Page 3 - Energy_en

WANDFLUH ENERGY

Redundancy and switching safety combined with a long service life are the main
characteristics of components used in the energy sector. The hydraulic switching circuits
at the heart of these installations often are a part of the system-relevant and sometimes
safety-critical control elements in power plants.

FOCUS
In energy plants, extremely high forces are bundled and con- …designed to ensure extreme forces and a long service life
trolled. Since the advent of hydropower, hydraulic control
systems have been used for this. They regulate water sup-
ply, for example, and control the angles of turbine blades.
In the wind energy sector, the position of the rotor blades
angles are adjusted hydraulically in a similar way as with wa-
ter turbines. In addition, hydraulic brake systems are used
in wind power plants to decelerate the turbines in case of
heavy winds to prevent any damage to the installations. In
thermal power plants, a typical application is controlling but-

terfly valves, which reduce the steam pressure quickly and in
a controlled way in the event of an emergency. In all of these
applications, safety is the top priority. Frequently redundant ENERGY
systems with switching position monitoring are used here
which can be precisely adapted to the relevant system to-
gether with the customer.

APPLICATION EXAMPLES CHARACTERISTICS
• Steam flap controllers • Corrosion protection valves, from zinc-nickel

• Adjustment of the rotor blades of wind generators through to stainless steel
• Control of disc brakes • Redundant systems
• Turbine controllers • Valve technology with switching position monitoring
• Process control • Precise adaptation to a hydraulics system by means of

• Butterfly valve control electronics developed in-house and intelligent software
• Continuous positioning of solar panels • Parameterisable controller electronics with bus
connection (HART, Profibus, etc.)

• Sensitive control characteristics
• Precise proportional valves
• Reduced electrical power
• Ease of maintenance
• BlueCompetence products

• Individual customer-specific adaptations
• Worldwide customer service

WANDFLUH ENERGY | BRANCH | ENERGY | PAGE 1