1

12

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1. PM synchronical generator + full power converterGeoho Energy 2MW high speed permanent magnet wind turbine with high power and high speed permanent magnet generator, has higher power efficiency in low wind, and produces 5% more power than Double-fed did. The property of maintenance-free will definitely decrease the maintenance workload in the future. With full power converter technology, it can make the wind turbine and power grid full decoupling, which can significantly improve the power quality and has incomparable advantages in the function of low voltage ride-through compared with double-fed wind turbine, satisfy the requirement of stable grid-fed.

2. Full intellectual property possessing Geoho Energy 2MW high speed permanent magnet wind turbine has applied 15 patents, and has all the rights of intellectual property including: the all data, drawings, design, analysis, reports and products. It can be personalized according to the different demands of users.

3. Product seriationThe five type machines: GHFD87-2000/II, GHFD93-2000/III, GHFD100-2000/III, GHFD112-2000/III, GHFD125-2000/III, which offer more choice for customers.

4. Adapt to the harsh natural environmentAdopt special design the wind turbine has weatherproof, dustproof and low temperature resistance abilities.

5. The new technology of gear boxGeoho energy 2 MW high speed permanent magnet wind turbine adopts two types of gear box: one kind is the traditional secondary gear planetary + primary parallel axis gear. another one is adopts power split and flexible shaft technology, compared with the traditional, more even distribution of load along the tooth surface. this kind of gearbox is light in weight, small in volume, which can reducing the load and cost of the wind turbine effectively.

2MW Wind turbine Superiority

Certification: 2MW

1.Spinner/Hub

2.Blade

3.Nacelle cover

4.Main shaft

5.Gearbox

6.Main bearing

7.Yaw drive

8.Tower

9.Nacelle Frame

10.Control system

11.PM synchronical generator 12.Met Station and Lighting System

2MW Wind turbine internal structure

Geoho Energy 2MW wind turbine (GHFD87-2000/II, GHFD93-2000/III, GHFD100-2000/III, GHFD112-2000/III, GHFD125-2000/III) adopts a high-speed permanent magnet synchronous generator and a full power converter technology. The turbine is certificated and supported by Intertek during design and manufacturing. It is in the form of three blades, horizontal axis and upwind. Wind turbine converts energy from wind into mechanical energy, and then the mechanical energy is converted into electrical energy through gear box and permanent magnet synchronous generator coaxially connected. With the help of the four quadrants full power converter, the electrical power with high quality is fed into grid. In order to adapt to the local environment in China, the turbine is specified in the design of sand and low temperature protection. At present, Geoho energy 2 MW wind turbine has been installed 300MW capacity in places such as Inner Mongolia, Xinjiang, Ningxia,and has a reliable operation for many years.

2MW Power curve

WIND ENERGY MAKES LIFE BETTER

2013.09 Ver.

SpecificationWind turbine

Blade

Tower

Generator

Brake System

Yaw system

Lightning protection

Description

Type Rated power Blade diameter Power regulation

Cut-in speed(10 min average value)

Rated wind speed(10 min average value)

Cut-out speed(10 min average value)

Life span Operational temperature range Noise(300m away turbine)

Manufacture/Type Blade materials Blade number Speed range Direction of rotation

Type Rated power Rated voltage Rated current Speed range Insulation classProtection classLubrication system

Main brake system The second brake system

Drive type Brake type Control Yaw bearing Lubrication system

Lightning pretection standard Lightning pretection measures Wind turbine earthling resistance

Type Hub height

Surface erosion protection

Ω

Unit

m

rpm

rpm

AV

kW

dB ℃

Year

m/sm/sm/s

m kW

GHFD87-2000/Ⅱ GHFD93-2000/Ⅲ GHFD100-2000/ⅢGHFD112-2000/Ⅲ

aeroBlade2.0-42.2 aeroBlade2.0-45.3 windnovition2.0-48.8 WE4CE2.0-54

87 93Pitch

Clockwise

FIP54

Self-lubrication

Electric/Aerodynamic brake (Optional)Electric/Hydraulic brake (Optional)

Electric/Hydraulic brake (Optional)Active yawing

Outer ring gear four-point contact ball bearingSelf-lubrication

IEC61400-24-II Surge protection，Lightning conductor,Equipotential connection etc.

≤3.5

Steel tubular tower

Painting

Motor drive

Permanent magnet synchronous generator

20-30 ~ +40

≤45@rated rotor speed ≤20@cut-in rotor speed

Glass fiber reinforced resin

100 2000

112

3 3 3 3

3 3 3 3 4.6-18.3 4.3-16.8

2200

1995690

330-1552

80

4-15.6 4-15

90

12 11 10.5 10 25 25 23 25

Geoho energy 2 MW high speed permanent magnet wind turbine has been certified by American Intertek company and

has now received type certificate; This is the first China 2 MW high speed permanent magnet wind turbine passed the

certification which based on GL2003 standard.

Air densi ty:1.225kg/m3

GHFD87-2000/II

GHFD93-2000/III

GHFD100-2000/III

GHFD112-2000/III

850kW Wind turbine Superiority

Spinner/Hub

BladeNacelle cover

Main shaftGearbox

Main bearing

Yaw drive

Tower

Nacelle Frame

Control system

Crane

Generator

Met Station and Lighting System

1.Adopt advanced control technology, improve the power production; improve the quality of power capacity.

2.Generator adopts brushless excitat ion t e c h n o l o g y w h i c h c a n b e r e d u c e t h e generator's failures effectively and improve the reliability of wind turbine.

3.Through the reshaping of wind turbine, which can better adapt to the distributed power grid s y s t e m , m i c r o n e t w o r k s y s t e m , a n d independent power generation system.

4.Through the reshaping, it can be applied in the wind power field for heating and provided

“zero emissions” clean energy which can c reate a warm and comfor tab le indoor environment for us.

At present, 850kW VSCF wind turbine has been received A design certification of China General Certification Center.

Geoho Energy 850kW variable speed constant frequency wind turbine has the same technology platform with the mainstream MW wind turbines. It is in the form of three blades，horizontal axis and upwind type. The power train consists of rotor, main shaft, gear-box and synchronous generator. The wind turbine adopts Variable Speed Constant Frequency (independent electrical pitching) control system，and it has a better performance in the aspect of low voltage fault ride through compared with the doubly fed wind turbine. Power converter adopts full power inverter technology, the synchronous generator is brushless and maintenance free. This wind turbine is efficient, credible and with high performance. So far more than 130 units are installed in Inner Mongolia, Liaoning, Zhejiang and operate reliably. It is approved by several developers for its high quality and benefit.

Geoho Energy 850kW variable speed constant frequency wind turbine includes three types: GHFD52-850/I, GHFD56-850/II, GHFD60-850/III, which applicable to I, II, III class domestic wind farm respectively. And can be personalized design based on the actual wind condition of the wind farm.

850kW Wind turbine internal structure

Certification: 850kW

850kW Power curve

WIND ENERGY MAKES LIFE BETTER

Description Unit Specification Wind turbineType GHFD52-850/Ⅰ GHFD56-850/Ⅱ GHFD60-850/ⅢRated power kW 850Blade diameter m 52 56 60Power regulation PitchCut-in speed(10 min average value) m/s 4 3 3Rated wind speed(10 min average value) m/s 12.5 11.5 10.5Cut-out speed(10 min average value) m/s 25 20 20Life span Year 20Operational temperature range ℃ -30～ +40Noise (300m away turbine) dB ≤40@rated rotor speed ≤20@cut-in rotor speed BladeManufacture/Type APX52 APX56 APX60Blade materials Glass fiber reinforced resinBlade number 3Speed range rpm 15-31 14.5-29 13-27Direction of rotation Clockwise GeneratorType Brushless excitation synchronous generatorRated power kW 900Rated voltage V 690Rated current A 755Rated speed rpm 1710Insulation class FProtection class IP54Lubrication system Self-lubrication Brake systemMain brake system AirbrakeThe second brake system Hydraulic brake Yaw systemType/Design Motor drive/4 planet decelerationControl Active yawingYaw bearing Internal 4 stages planetary gearboxLubrication system Manual lubrication Lightning protectionLightning protection standard IEC61400-24-II Lightning protection measures Electrical lightning protection, tip lightning protectionWind turbine earthling resistance ≤3.5 TowerType Steel tubular towerHub height m 50/60/70Surface erosion protection Painting

Ω

2013.09 Ver.

Air densi ty:1.225kg/m3

GHFD52-850/IGHFD56-850/IIGHFD60-850/III

R e m o t e d a t a b r o w s i n g s y s t e m ( R D B S ) w h i c h c a n rea l ized query o f the remote rea l- t ime tes t ing data and t he w ind t u rb i ne ope ra t i on da ta o f w ind f a rm , and t he d a t a b a s e a s t h e c o r e t o b u i l d t h e d a t a q u e r y o f w i n d f a rm , ana l ys i s , and t he v i ew ing p l a t f o rm , imp rove t he ab i l i t y o f rea l- t ime mon i to r ing and data ana lys is o f the wind turbine.

Remote mon i to r ing sys tem (SCADA sys tem) o f the tes t b e d n o t o n l y r e a l i z e s r e m o t e m o n i t o r i n g , a n d a l s o widens the appl icat ion scope of test-bed .convenient in the process of the test to a l l sor ts of operat ion condi t ion of the wind turbine for test ing.

A d o p t s t h e e n e r g y f e e d b a c k t e s t m e t h o d , t h e e n e r g y consumpt ion is about 10% of the wind turb ine which has been tes ted . I n t h i s way , we can save the ene rgy and protect the environment.

WTG fu l l power , mul t i- funct ion test bed is the most impor tant dev ice

o f w ind tu rb ine manufac tu r ing en te rp r i se , and i s the embod iment o f

i ts comprehensive strength.

Geoho Energy 3 .7MW fu l l power tes t bed des igned accord ing to IEC

s tandard and nat iona l sca le o f tes t ing center which sat is f ies the tes t

r e q u i r e m e n t s o f d o m e s t i c m a i n s t r e a m w i n d t u r b i n e a n d k e y

c o m p o n e n t s . T h e a c c o m p l i s h m e n t o f t e s t b e d m a r k s t h a t G e o h o

Energy possesses capab i l i t y to tes t la rge w ind tu rb ine . And i t i s the

fundamental for R&D and commissioning of the New Product . S ince i t

p u t i n t o o p e r a t i o n , i t c a n n o t o n l y m e e t t h e t e s t r e q u i r e m e n t s o f

G e o h o E n e r g y ’ s t u r b i n e a n d c o m p o n e n t s , a l s o p r o v i d e t e s t i n g

s e r v i c e s t o e x t e r n a l d o m e s t i c c o m p a n i e s . A l l o f t h e w i n d t u r b i n e

w o u l d b e t e s t i n t h i s b e d b e f o r e t h e y l e a v e t h e f a c t o r y w h i c h t o

ensure the rel iabi l i ty and qual i ty of wind turbine.

Three Characteristics of the Test-bed

3.7 MW Full Power Test Bed

WIND ENERGY MAKES LIFE BETTER

画册2013年9月版.pdf单页2013年9月版