H21.0-60KW On-Grid Wind Turbine

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H21.0-60KW On-Grid Wind Turbine

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Introduction for Hummer pitch-controlled system


1. Ultrasonic Dogvane & Anemometer

There is no mechanical moving parts, which with high accuracy and long lifespan. It can remove snow and frost automatically because of the electrical heating function. It can be used in cold and bad condition areas. All HUMMER pitch-controlled systems match with the ultrasonic dogvane & anemometer.


 2. PLC control system

Hummer 5kw and larger models are matched with Siemens PLC system, which is with high disturbance resisting and stable operation. Hummer pitch-controlled system adopts double PLC systems, the two systems are on real-time communication, which means that, if any of the PLC system is broken down, the other one can stop the system safely, which can greatly protect the system. 



3. Siemens serve motor 

Hummer pitch-controlled models matches with three high-performance Siemens serve motor:

(1) Yawing serve motor

(2) Hydraulic braking serve motor

(3) Pitch serve motor

Siemens PLC system greatly matches with Siemens serve motor, which make Hummer pitch-controlled models operate reliably. Because of the PID Self-turning function of the Siemens serve motor, the blades works rapidly and reliably.


4. Touch screen

Hummer 5kw and larger models match with touch screen. There is internet access, which can remote monitoring the system and get the operation data. Especially when there is fault, users can contact Hummer technician, they can remote diagnosis and debug the fault, and can offer software updating function. 


5. Rectifier and dumping controller & Dumping load

Wind turbine outputs unstable 3-phase alternating current power,it can be converted to DC power after the rectifying by the Silicon Controlled Rectifier(SCR), then supply to on-grid inverter,and send to power gird or charge the batteries to store. Under the strong wind speed status, the extra power above the rated power will be consumed by the dump load. Hummer matches the stainless steel dump load  with high temperature resistance, the heat will be emitted in naturally through the thermal efficiency of chimney, no cooling fan will be needed.





H21.0-60KW Specifications


3 Blades, Horizontal axis, Upwind

Rotor Diameter


Blade Length


Swept Area

346.36 m2

Direction of Rotation

Clockwise(face to blades)

Blade Material

Fiberglass reinforced composite,Resin Transfer Molding(RTM)

Rated Power


Direct Voltage


Direct Current


Start-up Wind Speed

2.5 m/s

Rated rotating rate

50 r/min

Working Wind Speed

1.5-25 m/s

Survival Wind Speed

50 m/s


Permanent magnet alternator, SCF technology

Alternator Weight


Generator Efficiency


Wind Energy Utilizing Ratio

0.45 Cp

Energy monitoring & User control

Siemens touch screen,Siemens PLC controller,internet telecommunication & remote monitoring


None, Direct drive generator design

Pitch Control System

Siemens servo motor drive 3pcs blades

Yawing System

Siemens servo motor drive to yaw

Hydraulic Braking System

Siemens servo motor drive braking cylinder,rotor blade brake & yaw brake


Ultrasonic,with electrical heating function

Over Speed Protection

Pitch control

Shutting Down Method

Blades feathering 90o degree, Hydraulic braking rotor blade


Output Power Curve:


1. Q: Are you factory or trading company?
    A: Factory. Anhui Hummer Dynamo Co., Ltd. is a famous high and new tech enterprise which is specialized in R&D and the production of wind turbines. With 11 million RMB registered capital, the company covers an area of 7.5 acres, a cradle for independent research, development, production and sales.

2. Q: What are your advantages?
    A: Hummer has its own scientific research team which is composed of experts who have got special government allowance support. With SCF generator supercritical technology as the core, we have developed Hummer wind turbines, and got 16 patents. We adopt Siemens PLC and touch screen for Hummer control system, as well as SKF bearings for high quality Hummer wind turbines.

3. Q: Do you have any certificates?
    A: Hummer wind turbine system follows the ISO9001 quality management, and has passed CE certificate.

4. Q: How many types of the wind turbines do we have?
    A: Currently Hummer offers minimum 400W up to 200kW wind turbine in off-grid and on-grid systems, of which 400W and 600W are originally designed for wind-solar hybrid LED street light system, 500W to 10kW are used for small home, 20kW to 200kW are for commercial and industrial like wind farm, etc.
5. Q: What type of warranty comes with a Hummer wind turbine?
    A: All Hummer wind turbine come with a standard 2 Year Limited Warranty for generator system and all other parts 1 Year Limited Warranty.

6. Q: Can I only buy parts not whole system?
    A: YES, for example you can manufacture tower in local, we can supply you tower drawing.

7. Q: What shall we do if there are some problems that clients can’t deal with?
    A: Our 30kw/40kw/50kw/60kw/100kw/200kw wind turbines have PLC controller, which can remote monitor to solve the problems.

8. Q: What type of generator does Hummer manufacture?
     A: All Hummer wind generators are three-phase, permanent-magnetic alternators with slip-ring.