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ENERCON E-40 Operating Instructions
Page 24 of 96
3 O
PERATION
3.1 Control and Monitoring System
Blade A pitch measurement activation of pitch control motor battery charging and monitoring regulation of battery heating generator air gap monitoring (2x) rotational speed measurement monitoring of other parameters
Blade B pitch measurement activation of pitch control motor battery charging and monitoring regulation of battery heating generator air gap monitoring (2x) front bearing temperature (main pin) generator temperature (rotor) monitoring of other parameters
Blade A pitch measurement activation of pitch control motor battery charging and monitoring regulation of battery heating generator air gap monitoring (2x) rear bearing temperature (main pin) monitoring of other parameters
OWG
I slip ring casing
OWG (optical waveguide) distribution rotor
Grid management 1
Control of inverter, synchronization with the grid current, monitoring of grid parameters, monitoring of current in the DC link and in the inverters, control of mains contactor
Generator excitation fault current detection overcurrent limiting
Converter control board 1
Control and monitoring of the step-up converter monitoring of the mains contactor, fan regulation, temperature measurement, sensor monitoring
Grid management 1
Control of inverter, synchronization with the grid current, monitoring of grid parameters, monitoring of current in the DC link and in the inverters, control of mains contactor
Converter control board 1
Control and monitoring of the step-up converter monitoring of the mains contactor, fan regulation, temperature measurement, sensor monitoring
Display
Display of operating data, indication and location of faults via LEDs, output of status messages in numeric code and in plain text, changing of operating data, internal clock
I
OWG nacelle sub-distribution starting / stopping the WEC operation for maintenance tower cable
OWG (optical waveguide) distribution
Customer interface (optional) output of operating data as analog values measuring of analog inputs, output of status messages in the form of switch contacts.
I / O board
Supply of voltage to all sensors in the control cabinet and in the nacelle.
Measurement and evaluation of analog and digital measuring data, such as wind direction, wind speed and rotational speed, stator temperature, etc.
Control of relays e.g. for yaw control, main security circuit etc.
MPU - Control and Monitoring
Organization of the data transmission between the processors, monitoring of the data bus, calculation of the power output reference value on the basis of the power curve, regulation of the excitation current, eveluation and processing of fault signals, starting and stopping of the WEC, measurement and monitoring of the power fed into the grid, communication with windfarm computer for data transmission
Data repeater (short-distance modem) communication with windfarm computer for data transmission
PC long-distance data transmission
Figure 5: Survey of the control and monitoring system of the E-40
Operation
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