Large Horizontal Wind Turbine Generator

A wind turbine, which is installed on top of a tall tower, collects kinetic energy from the wind and converts it to electricity that is compatible with a home's electrical system.

Our Megawatt wind turbine models from 1MW to 1.5MW, The design experience conceptual design, the system design, the structural design and the analysis, the design appraised that, the experimental simulation, processes and so on prototypical trial manufacturing, obtain a guarantor to post one's bail each step conform to the international standardized design requirement, designs the perfect excellent MW series Wind turbine can supply power for factory, power station, wind turbine farm, offshore wind power project, onshore wind power project etc.

Test and Assembly
1. Before wind turbine leave factory test project.
2. Hydraulic pressure station function experiment
3. Yawing system 500 hours continuous work test
4. Changes the prop pitch system function experiment
5. The transmission system centering tests
6. Transmission system continuous running coordination experiment
7. Master Control logical function test
8. Safety system function test
9. Generating system power control experiment.

Model		LDMG1	LDMG1.5
Designed  parameters	Rated power	1MW	1.5MW
	Power control	Variable speed and Pitch adjusted
	Rated wind speed	13.5m /s	12m /s
	Cut-in wind speed	3.5m /s	3.5m /s
	Cut-out wind speed	25m /s	25m /s
	security rank	IEC II A	IEC II A
	Designed lifespan	20year	20year
	Environment temperature	-30 ºC ~ +40ºC	-30 ºC ~ +41ºC
Rotor	Number of blades	3pcs	3pcs
	Rotor diameter	60.62m	70.5m
	Hub apex height	61.14m	65.1m
	Rpm of rotor	12-21.5rpm	12-20rpm
	Sweep area	2886 m²	3904 m ²
Blades	Blades length	29.1m	34m
	Blade model	NACA63-XX	DU-FFA-DU
	Material	GFR-Glass-fiber Reinforced Resin
	Weight	4000KG	4450KG
Pitch-control  system	Working way	Hydraulic driving/ crank-connecting rod & synchronous disc	electromotor pitch adjust, independently blades adjust
	Pitch –controlled bearing		4-points double row angular contact ball slewing ring with inner ring gear
	Pitch adjusted rate	7.5 /s-12.5 /s	7.5 /s-12.5 /s
	Pitch adjusted angle range	- 2 -90	-5 -89
	Battery		lead acid, 250-300VDC
	Slip ring	29 rows	29 rows
Gearbox	Type	One stage NGW planet gear/two stage cylindrical inclined	One stage planet gear/two stage parallel axis cylindrical inclined gear
	Inclined angle of main axis		5
	Ratio	1:78.158	1:90
	Oiling	splash lubricate/forced lubricate	mixed lubrication
Mechanical  brake	Position	high speed axis	high speed axis
	Working way	Fail safe spring brake, hydraulic brake	passive brake, spring locked, press and operate the brake
Yawing system	Working way	Drive motors active yawing
	No. of motors	2 units	4 units
	Yawing axis	single row external gear 4 points contact ball bearing	double row external gear 4 points contact ball bearing
	Yawing brake	motor brake sticking, 6 hydraulic brake clips
Generator	Type	Doubly-fed asynchronous wound generator
	Rotational speed	937~1680rpm	1000~1800rpm
	Rated voltage	690V	690V
	Frequency	50Hz	50Hz
	Seal rank	IP54	IP54
	Cooling	forced air cooling
	Converter	rotor-side converter, PWM Modulation IGBT
Coupling	Model	KTR RADEX-N	KTR RADEX-N
	Max. deviation of alignment	2	1.5
	Dynamic balance rank	6.3	6.3
Tower	Type	2 sections tapered tubular steel tower	3 sections tapered tubular steel tower
	Height	57.19m	63m
	Max. diameter	3875mm	4260mm
Control system	Core processor	micro processor	ARM embedded system WP4000
	Communication	Industry bus line	Industry bus line CAN Open
	Components	cabinet in generator case, cabinet under tower, power switch cabinet
Weight	Turbine weight	26 Tons	30 Tons
	Generator case	39.7 Tons	50 Tons
	Tower weight	78.6 Tons	93.6 Tons
	Total weight	144.3 Tons	173.6 Tons
Security system		Aerodynamic break  Mechanical high speed axis associated brake; Equipotential lighting protection system; Manual yawing function	Full wind span electromotor pitch adjust aerodynamic brake; Mechanical high speed axis associated brake; Equipotential lighting protection system; Manual yawing function