​WRTB / VRTB TURBINE vertical wind turbine

 "WINDROTOR BOLOTOV" - "WRTB" PROVEN WIND TECHNOLOGY 

 Windrotor Bolotov (WRTB) – innovative solution, designed to transform the kinetic energy of wind flow into clean electricity.

The wind turbine consists of three main components, technically  jointed to each other:

- Wind turbine

• Electric generator
  
• Smart Wind Energy Harvester 
  

​- The HybridWB 5 kWt solution (see the photo Ground installation)

Wind direction and Wind Speed.
What is the value of benefits gives the omnidirectional wind turbine (VAWT) compared with propellers (HAWT) of any kind of your systems?
Answer. about 2 times more relative to electricity production and 3-4 times less relatively maintenance cost.

Energy Storage System for a Sustainable Power Supply.

ESS is a smart battery system that has a fast charge using electricity generated from the wind turbine, solar panels, and powers your needs by your demand.​ 

Adjustable capacity (kWh) for specific inquiries.

The monitoring system 

We designed functional monitoring for remote data collection. Our monitoring system allows you to keep records of data and monitor the object`s key indicators in real-time mode.

​​​© Copyright 2019 Windrotor Bolotov wind power - All Rights Reserved

VRTB turbine WRTB turbine vertical wind turbine 

The "WRTB MPCT" is a highly reliable wind turbine controller - battery charger and its most critical feature is to maximize the harvested energy from the 3-Phase wind turbine into the battery by using the advanced technology of MPCT. The controller allows direct maximum power coefficient tracking for winds of entire range speeds.

The wide range of the input generator’s voltage and output battery voltage is well applied to the wind system to allow the system planner to produce the most of the wind energy. The input voltage range of the "WRTB MPCT" family may be wired in the range of 0 ~ 220 VAc nominal and the Maximum Automatic Brake Function is 300 Vdc.
"WRTB MPCT" may not only be used in wind off-grid systems but also wind hybrid systems.

Maximum Wind Turbine Capacity

​Charging 96 Vdc Batteries 8 KW

Charging 48 Vdc Batteries 4 KW

Charging 24 Vdc Batteries 2 KW

Charging 12 Vdc Batteries 1 KW  

Multi-blade WRTB turbine with smooth rotation will withstand gusty wind under load.

The vertical axis wind turbine (WRTB) has great potential for applications in marine transport. With its vertical compact cylindrical shape, the wind turbine can effectively generate electricity on board a vessel regardless of the wind direction.

Serge Albertovich

Bolotov

 ​The well-known wind turbine's solutions divided into 2 major groups:

• Horizontal axis wind turbines (HAWT) - propeller type

• Vertical axis wind turbines (VAWT) - Savonious, Dareus types, and their modifications.​​​​
  

The concept of VERTICAL AXIS WIND TURBINE - WINDROTOR BOLOTOV type (VAWT WRTB) was developed based on a thorough study of wind as an energy carrier for its main parameters - speed and direction, as well as the continuous changes in these parameters over time - characterized as a "pulsation", "gusts" and flurry.

Studies show that every estimated kilowatt of power from Windrotor Bolotov in small and medium wind speeds produces more energy than a kilowatt of power from a propeller (HAWT).

​​Existing wind turbines solutions may divide into 2 major groups:     

- Horizontal  Axis Wind Turbines  (HAWT) - propeller windmills

- Vertical Axis Wind Turbines (VAWT) - wind rotor

 Historically, horizontal-axis propeller windmills (HAWT) have been widely utilized. These systems feature blades (usually 1, 2, or 3) of intricate design, along with costly speed reducers and control systems to adjust the mill and blades' orientation in response to changing wind direction and speed. Smaller to medium-sized windmill setups often employ basic yaw mechanisms for wind capture. Despite Betz's law suggesting that only 59% of wind's kinetic energy can be converted into mechanical energy, propeller windmills face challenges due to rapid wind speed and direction changes as well as turbulence. Consequently, HAWT turbines can only harness around 10-25% of wind kinetic energy as mechanical power, which is then converted to electrical energy output at rates ranging from 50-69%. This conversion process involves various components like reducers, friction oil, electrical circuitry, and generators.
Propeller windmills require a stable and perpendicular wind stream for optimal performance, as any deviations in wind direction can significantly reduce power extraction efficiency, leading to higher energy output costs per kilowatt-hour (kW-h).

R&D WRTB Team.
The research center's team comprises highly skilled professionals with extensive R&D experience across various domains. Serving as the driving force behind the center, these experts analyze, test, and select the most promising solutions, securing the company's competitive edge. The team includes: Academic, Ph.D. holders and candidates of science. The presence of the research center not only ensures technical superiority in implemented systems but also facilitates proper planning of the company's economic and financial activities.

The Offered Solution   ​

The Windrotor Bolotov, a vertical axis wind turbine (VAWT) with high efficiency, offers several key advantages. It features standardized assembly modules and low maintenance costs, making it a cost-effective option. The turbine's design allows it to convert wind energy into mechanical power with a conversion ratio of around 42%, subsequently transformed into electric energy with an impressive ratio of 92-94%. This efficient conversion is achieved through a unique stator-rotor solution that accelerates wind speed, eliminating the need for a reducer and utilizing a specialized electrical generator and scheme.
One notable feature of the Windrotor is its modular design, enabling output scalability by adjusting the height through adding standard modules with "pads." This turbine operates across a broader range of wind speeds compared to traditional propeller windmills, boasting higher energy effectiveness as demonstrated in accompanying diagrams. Moreover, by placing components like the generator and gearbox on the ground, maintenance costs are significantly reduced, making it a more economically viable option.
A comparative analysis between Horizontal Axis Wind Turbines (HAWT) and Vertical Axis Wind Turbines (VAWT) like the Windrotor Bolotov was conducted based on experiments carried out in a specific geographic region of Middle Asia, considering the annual wind speed distribution. The paradoxical nature of wind speed averages, as highlighted, underscores the significance of capturing energy from a wide spectrum of wind speeds, a principle central to the efficiency of the "windrotor Bolotov" machine, exemplified in Figures 2 and 3.

​Turbine Components (see the wind turbine diagram)

Windrotor Bolotov turbine components include:

1) Blades of the rotors convert the wind energy in rotating the shaft;
2) Blades of the stators, direct and accelerate the airflow to the rotor’s blades;
3) A generator box and a generator are designed for a counter-rotation function of 2 modular blades system (upper and lower module);
4) A “tower”- foundation that supports the wind rotor machine;
5) Electrical enclosure with other equipment, including controller, electrical cables, batteries, and interconnection equipment. 
​
 

The VAWT Windrotor Bolotov and its integrated power systems have demonstrated remarkable long-term performance across various macro-climatic conditions, proving to be highly efficient. Over 100 projects of a critical infrastucture have been successfully completed in the alternative energy sector, utilizing WRTB equipment known for its diverse lineup. These systems have been deployed in extreme environments such as the Yenisei Bay (with an annual average wind speed of 10 m/s and temperatures as low as -50°C), the "Dzungarian Gate" (facing annual hurricanes with speeds reaching up to 47 m/s), and the islands of the Finland Bay (with wind speeds of 30 m/s and moist sub-zero temperatures). An emerging trend in the realm of sustainability and cost-effectiveness lies in energy complexes integrating alternative wind and solar converters with a capacity of up to 50 kW. These systems find application as reliable power sources for telecommunications equipment, lighthouses, hydrometeorological services, and technical monitoring stations.

Introducing an innovative wind turbine solution, the WRTB turbine boasts a power curve akin to conventional wind turbines.

However, through a blend of design elements and cutting-edge technologies, this turbine excels in efficiently harvesting wind energy.
The Vertical-axis wind turbine Windrotor Bolotov - "WRTB" is a standout performer, offering a 30% increase in wind energy harvesting efficiency compared to most small wind turbines. It showcases the following key features:

- Guide vanes that enhance wind energy concentration, directing it optimally towards the turbine rotor blades.
- Aerodynamic modules with varying diameters and heights, enabling the production of turbines across a wide capacity range.
- Independent rotation capability of turbine rotors and generator stator and rotor, facilitating generator output at rated voltage even during low wind speeds.

The Windrotor WRTB is not just a highly efficient energy source but also visually appealing, meeting the highest sanitary standards. With no external moving parts or disruptive elements, it ensures a tranquil energy generation experience.
Over a span of 17 years, the team of authors has spearheaded a diverse array of fundamental and applied scientific and technical research focused on identifying promising wind turbine solutions and enhancing renewable energy power systems.

At the forefront of advancements in efficiency and sustainability, VRTB is turning proven experience and innovative thinking into exceptional results in  projects around the world.

S= 6.2 m2. Wind speed 13 m/s. P=3000 Wt