Technical Description
ENERCON Wind energy converterE-82 E4
Страница 1: ...Technical Description ENERCON Wind energy converter E 82 E4...
Страница 2: ...application and use also in part require the express and written permission of the copyright holder unless any of the above are permitted by mandatory legal regulations Any infringement of the copyrig...
Страница 3: ...tem 9 6 Control system 12 6 1 Yaw system 12 6 2 Pitch control 12 6 3 WEC start 13 6 3 1 Start lead up 13 6 3 2 Wind measurement and nacelle alignment 14 6 3 3 Generator excitation 14 6 3 4 Power feed...
Страница 4: ...Table of contents D0376616 2 DA iv...
Страница 5: ...y converter with a three bladed rotor active pitch control variable speed operation and a nominal power output of 2350 3000 kW It has a rotor diameter of 82 m and can be supplied with hub heights of 5...
Страница 6: ...of power extracted from the wind In this way the maximum output of the E 82 E4 can be accurately limited to nominal power even at short notice By pitching the rotor blades into the feathered position...
Страница 7: ...filter cabinet 2 Hub 9 Excitation controller box 3 Blade adapter 10 Nacelle converter cabinet 4 Generator stator 11 Yaw drives 5 Generator rotor 12 Main carrier 6 Stator shield 13 Blade extension 7 Re...
Страница 8: ...he three rotor blades An angle encoder in each rotor blade constantly monitors the set blade angle and en sures blade angle synchronisation across all three blades This provides for quick accurate adj...
Страница 9: ...sections are simply stacked on top of each other and bolted together at the installation site They are linked to the foundation by means of a bolt cage The concrete tower is assembled from the precas...
Страница 10: ...nsmission conditions Sudden changes in wind speed are translated into controlled change in order to maintain stable grid feed Conversely possible grid faults have virtually no effect on WEC mechanics...
Страница 11: ...e grid If the voltage does not return to the operating range admissible for normal operation within an adjustable time frame 5 seconds max the wind energy converter is disconnected from the grid While...
Страница 12: ...y control If temporary overfrequency occurs as a result of a grid fault ENERCON wind energy converters can reduce their power feed dynamically to contribute to restoring the balance between the gener...
Страница 13: ...onents Lighting Sockets Main switch In an ENERCON wind energy converter main switches are installed on the control cabinet and the nacelle control cabinet When actuated they de energise virtually the...
Страница 14: ...ing The switches respond if the rotor speed exceeds the rated speed by more than 25 To enable the wind energy converter to restart the overspeed switches must be reset manually after the cause of the...
Страница 15: ...the wind energy converter but without an automatic restart after cooling down once the temperature exceeds a specific limit At low temperatures some assemblies such as the pitch system emergency power...
Страница 16: ...gle of attack i e the angle at which the air flow meets the blade profile Changes to the blade angle change the lift at the rotor blade and thus the force with which the rotor blade turns the rotor Du...
Страница 17: ...atically The rotor blades do not generate any lift even in the presence of wind the rotor stands still or moves very slowly Fig 4 Special blade positions 6 3 WEC start 6 3 1 Start lead up As long as t...
Страница 18: ...the WEC is taken from the grid 6 3 3 Generator excitation Once the rotor reaches a certain rotational speed that depends on the WEC type for instance ap prox 3 rpm with the E 82 generator excitation i...
Страница 19: ...n rotor speed at rated approx 17 5 rpm and thus limits the power to its nominal value of 2350 3000 kW Storm Control enabled normal case Storm Control enables WEC operation even at very high wind speed...
Страница 20: ...o as to achieve a smooth transition 6 4 3 Idle mode Wind speed v 2 5 m s At wind speeds below 2 5 m s no power can be fed into the grid The wind energy converter runs in idle mode i e the rotor blades...
Страница 21: ...pping the wind energy converter by means of pitch control In the event on a fault that is not safety relevant the WEC control system pitches the rotor blades out of the wind causing the rotor blades n...
Страница 22: ...ensures that the practical experience gained through the long term operation of ENERCON wind energy converters is taken into account for their continued development Connection of the individual wind e...
Страница 23: ...nance technicians not only perform visual maintenance but also top up or replace lubrication components and apply lubrication to seals Mechanical maintenance In addition to grease maintenance mechanic...
Страница 24: ...ass Nominal power 2350 kW 2350 kW 3000 kW 2350 kW 3000 kW 2350 kW 3000 kW Hub height 58 91 m 68 91 m 78 33 m 83 99 m IEC wind class ed 3 IIA IIA IA IA Rotor with pitch control Type Upwind rotor with a...
Страница 25: ...Active via yaw gears Control system Type Microprocessor Grid feed ENERCON inverter Remote monitoring system ENERCON SCADA Uninterruptible power supply UPS Integrated Tower variants Hub height Total he...
