5
PWM constant voltage control is 120% of the rated power of the wind turbine . In
case exceeding of PWM
’
s capacity, the three-phase dump load will automatically
start immediately to ensure safe running of the overall wind turbine system.
Under the circumstances of disconnecting or damage of the battery, the
three-phase dump load will start automatically to avoid the idling for wind turbine
and the occurrence of runaway accident.
Under the strong or super-strong wind conditions PWM control to ensure battery
charged by the wind turbine with constant voltage and current.
The protection function of reverse connection, disconnection and
damage-resisting of the battery will be applied.
Over-charging protection of the battery: When the battery is full (the battery
voltage getting 125% of the rated voltage), the controller will carry out
three-phase dump load automatically to stop charging the battery.
Auto recharging of battery: When the battery voltage reduces to 108% of the
rated voltage, it stops three-phase dump load to recharge battery automatically.
For the different wind turbine type, the controller can be equipped with
mechanical yawing, furled empennage, mechanical or hydraulic, pneumatic,
electric magnetic and other brake functions.
The inside of the controller is equipped with surge arrester. Contain the over
voltage into the wind turbine under the bearable voltage of the equipment or
system. On the other way, to conduct the strong lightening current into the earth
directly to avoid any damage of equipment.
Ammeter and voltmeter indication: Indicate the charging current and voltage of
the battery.
The controller is equipped with manual three-phase dump load switch. To using
this switch, the wind turbine will carry out three-phase dump load forcibly.
Содержание FKJ-B(PWM)-1KW48Vdc
Страница 9: ...9 Remove wiring step controller...
Страница 10: ...10...
Страница 17: ...17 Functional Diagram Wiring diagram PWM off grid Controller Unloader...