BF-C Series 20kW Vertical Axis Wind Turbine System
Our BF-C-series wind power generating system features advanced vertical axis technology with magnetic suspension structure, delivering exceptional wind energy efficiency and reliable performance for residential and small business applications.
Key Features
- High wind energy coefficient with low startup wind speed (3.8m/s)
- Superior anti-wind capability and stable operation
- Noise-free performance with maintenance-free design
- Advanced anti-corrosion treatment and sealing for long service life
- Captures wind from any direction without yaw mechanism
- Ideal for urban and suburban environments with turbulent wind flows
Technical Specifications
| Power |
20KW |
| Rotor diameter |
6m |
| Height of blade |
6.6m |
| Material of blades and numbers |
Glass fiber reinforce plastic/5 |
| Rated rotor speed |
150r/min |
| Output voltage |
220V/380V |
| Start up wind speed |
3.8m/s |
| Rated wind speed |
13m/s |
| Work speed |
3.8-25m/s |
| Security wind speed |
50m/s |
| Height of tower |
12m |
| Top weight except tower |
1800kg |
| Tower type |
133mm steel tube |
| Wind energy utilized coefficient |
30%-40% |
| Suggested batteries information |
64pcs 12V 200AH |
| Speed regulation method |
electromagnetic control |
| Range of working temperature |
-45℃-60℃ |
Generator Body
Features high-grade Neodymium Iron Boron permanent magnets, each tested for magnetic flux by authorized institutions. Engineered for low starting torque while maintaining high generating efficiency through optimized internal structure.
Blade Specifications
Streamline shape with 3 reinforced fiber plastic blades. Manufactured using unidirectional fiber fabric and epoxy resin molds with inner foam core construction. Designed for low noise operation, excellent balance, and superior fatigue resistance.
Wheel Hub & Connectors
Precision-made steel wheel hub connects blades to generator. Blades connectors constructed from Q235 plate with anti-corrosion surface treatment for durable performance.
Tower Options
Available in Q235 guy wire tower with anti-corrosion painting or free stand tower with hot dip galvanized plastic spraying for various installation requirements.
Off-grid Controller
Wind-solar hybrid controller which rectifies AC current generated by wind generator into DC current and charges the battery bank. Unload function activates when strong wind produces excess current. The controller brakes when batteries reach full capacity (125% voltage) and resumes charging when voltage reduces to 108%. Includes manual brake button for emergency stops.
| Product Model |
WWS200-220-N00 |
| Rated Battery Voltage |
220V |
| Rated Wind Turbine Input Power |
20kW |
| Maximum Wind Turbine Input Power |
30kW |
| Wind Turbine Brake Current |
91A |
| Rated Solar Input Power |
6kW |
| Floating Charging Voltage |
266V |
| Display Mode |
LCD |
| Quiescent Current |
≤20mA |
| Ambient Temperature & Humidity |
-20～+55℃/35～85%RH(Without Condensation) |
| Temperature Compensation Function (Optional) |
-4mV/℃/2V ,-35℃--+80℃ ,Precision:±1℃ |
| Dimension(L×W×H) |
Controller Box: 440×300×170mm ; Dumpload Box: 680×420×675mm |
| Net Weight |
Controller Box:9kg ; Dumpload Box: 30kg |
In order to serve our customers better. Our company can adjust parameters configuration according to customer's requirement.
Off-grid Inverter
Pure sine wave output capable of driving any household appliances. Features integrated circuit design with minimal wiring connections. Utilizes microprocessor technology for enhanced system integration. Includes comprehensive protection systems with high efficiency transformer design and LCD operation status display.
20kW Off-grid Inverter Technical Data
| Product Model |
WI200-220-3N01 |
| Rated Output Capacity |
20kVA |
| Rated Battery Voltage |
220VDC |
| Over Voltage Shutoff |
312VDC |
| Over Voltage Recovery |
302VDC |
| Under Voltage Shutoff |
198VDC |
| Under Voltage Recovery |
220VDC |
| No-load Loss |
≤0.9A |
| Output Wave |
Pure sine Wave |
| Display Mode |
LCD |
| Cooling |
Fan |
| Rated Output Voltage |
220VAC |
| Wave Distortion |
≤4％ |
| Output Frequency |
50±0.5Hz |
| Dynamic Response |
5% |
| Power Factor |
≥0.8 |
| Over-load Capacity |
120% 1min,150% 10s |
| Invert Efficiency |
90% Max |
| Isolating Mode |
Toroidal Transformer |
| Noise (1m) |
≤40dB |
| Insulating Strength |
1500VAC,1min |
| Protection Functions |
Input over voltage protection, Battery under voltage protection, Battery anti-reverse connection protection, Output overload protection, Output short circuit protection, Over temperature protection. |
| Ambient Temperature |
-20～+55℃ |
| Working Altitude |
≤4000m |
| Ambient Humidity |
0~90%,Without Condensation |
| Dimensions (Lx W x H) |
500 x 500 x 1100mm |
| Net Weight |
130kg |
In order to serve our customers better, our company can adjust parameter configuration according to customer's requirement.
Performance Curves
Additional Technical Specifications
- Generator Type: Permanent magnetic synchronous style
- Surface Treatment: Multi-layer painting including base coat (2 layers), anti-corrosion paint, and surface finish
- Complete System Includes: Base flange, guy wires, wire tighteners, ground anchors, nuts, screws, bolts, and cables
- Off-Grid System Requirements: 64 x 12V 100AH batteries (not included in base price)
- Certifications: CE product certificate and ISO factory report
Company Profile
Qingdao Bofeng Wind Turbine Co., Ltd., established in August 2006, is an integrated enterprise engaging in R&D, production, sales and service. Specializing in wind turbine manufacturing, we boast strong R&D and production capabilities. Our team of seasoned engineers and technical professionals is dedicated to developing new products, leveraging advanced technologies to manufacture wind turbines and other wind power equipment. Our product portfolio mainly focuses on wind power solutions, including vertical-axis wind turbines, horizontal-axis wind turbines, wind-solar hybrid street light systems, and wind-solar hybrid power supply systems.
Currently, we have a workforce of over 63 employees, among whom more than 60% hold college degrees or above. Our technical team consists of 6 professionals, including 2 senior engineers.
In terms of corporate governance, we implement standardized management across production operations, financial accounting, human resources and other key areas, covering property right systems, operational mechanisms and management regulations. Guided by ethical principles, we advocate humanistic spirit and practice people-oriented management, fostering a positive corporate culture. This ensures the efficient execution of all internal activities, thereby enhancing operational efficiency and economic benefits. As the social environment evolves and the enterprise grows, our management structure is continuously optimized to meet the demands of social and corporate transformation and innovation.
Since our founding in 2006, we have independently developed and manufactured a range of products with proprietary intellectual property rights, including vertical-axis wind turbines, horizontal-axis wind turbines, wind-solar hybrid street light systems, and wind-solar hybrid power supply systems. Our products are exported to countries and regions across the European Union, the United States, East Asia, Southeast Asia, Latin America and beyond, earning high praise from global customers and generating remarkable social and economic benefits.
