WindStax Energy is a full-service developer of integrated renewable energy solutions. WindStax® makes the largest vertical wind turbines in the US. Our award-winning wind and solar microgrids are changing the industry's perspective of energy as a commodity to energy as an opportunity. Contact online >>
WindStax Energy is a full-service developer of integrated renewable energy solutions. WindStax® makes the largest vertical wind turbines in the US. Our award-winning wind and solar microgrids are changing the industry''s perspective of energy as a commodity to energy as an opportunity.
These turbines are optimised for tough and varied environmental conditions from high snowy altitudes to arid deserts and rugged terrain. As shown in any regional Wind Atlas, annual average winds will vary a lot from coastal to inland areas and are also affected by general topology
Vertical Axis Wind Turbines are ideally suited to wind turbulence as they require no orientation of the rotor and can work with winds from any direction. They are far less noisy than horizontal turbines and therefore will not disturb livestock or nearby occupants. High-end small-scale turbines are fast becoming a necessary addition to renewable energy systems. Turbines supplement solar energy limitations of sunshine and seasonal hours. Additional battery energy storage systems will provide a 24-hour power resource.
Aerodynamic Performance. Every shape and size of a surface such as an airfoil or blade, has a different set of characteristics. As they revolve around a fixed central axis, they are subjected to myriad wind force dynamics in addition to wind speed and direction. Their dimensions, quantity, diameter across the circumference, and internal volume or swept area, helps determine energy potential and performance.
Variable Pitch Blades. This VAWT design incorporates a Positive Attack Angle Regulation which is controlled by the RPM – (variable pitch blades). This means that each blade has an optimal angle of attack at any position to maximise wind harvesting efficiency. After wind in the upwind direction passes through the first half of the VAWT, it becomes the downwind direction. Magnitudes of the power generated by the blades differ at different positions thereby optimising the performance at each instant.
Our VAWTs with their broad sweep, can be grouped in a proximity. Specifically, they are not encumbered by myriad guy wires that are generally considered unfriendly to grazing cattle; nor need protective surrounding fences that absorb valuable land requiring continual spraying to keep grass and weeds at bay.
VAWTs integrate perfectly with renewable systems, on or off-grid. Every site is uniquely varied in wind resources, so a site survey and energy assessment are necessary. This includes the geographic location, topology, obstructions and annual wind averages for the area.
Adjusting the blade angle in real-time per rotation, enables the blade to obtain the best angle at any azimuth, increasing the driving torque in both upwind and downwind positions. This means that each blade can supply power from any position using positive attack angle regulation.
Our VAWTs are noise-free and safe due to their low rotational speed, higher torque, and box girder structure of the blades. VAWTs have less impact on the grid because their rotational speed is less sensitive to changes in wind speed, and their rotational inertia is bigger, whereby their output voltage only fluctuates mildly.
Optimised for tough Australian conditions, they combine numerous curved aerofoil blades connected to a centrally mounted permanent magnet generator. Mounted high on a 12-metre pole they require a low start-up torque, or light gentle breeze to drive them and generate power. ATD Energy currently provide these in 3, 5 and 10kW models to suit any environment from rural, to industrial and commercial locations.
A lot more attention is now being focussed on VAWT advantages such as their excellent aerodynamic performance, higher wind energy utilization rates and wider working wind speed range.
This Power, or Wind Controller, is designed to work as an integrated system with the VAWT. It essentially manages the turbine and applies automatic braking when the RPM reaches the limits of the safety levels caused by high-velocity wind conditions.
All VAWT installations and maintenance MUST be carried out by qualified personnel with appropriate certifications – both electrical and engineering, to avoid damage, injury, electrocution or any other high life risks.
The Controller has three-phase AC inputs and one-phase DC output, and differs slightly for on-grid or off-grid applications. Each controller is equipped with a Microchip MCU and static switch, and various mechanisms to protect the wind generator.
Because of the lack of design theories and design basis, many companies apply the experiences of horizontal turbine design to vertical turbines. And some companies design vertical turbines based on their own preference. Most of the vertical turbines designed in this way are drag-type.
A good vertical turbine must have good performance in power generation – particularly at low wind speeds. And must be able to work in a wide range of wind speeds similar to large horizontal wind turbines.
Additionally, good methods of over-speed control and automatic mechanical braking are necessary features of a good vertical turbine. A generator short circuit is quite common for braking, but it is not a good solution. It causes the degaussing of the permanent magnet generator and eventually shortens its lifespan.
As wind power is proportional to the cube of wind speed, a doubling of wind speed results in a multiple of 8 times the wind energy. Vertical turbines can''t yaw like horizontal ones and therefore if a vertical turbine does not have pitch angle control for over-speed regulation, and automatic mechanical braking, it could break up and collapse very easily, even when the wind is not that strong.
For example, the images below show the poorly designed Heng Feng brand with fundamental design flaws and in particular, the central struts – as highlighted in these video frame excerpts.
A vertical turbine must have an electricity generation performance comparable to large horizontal turbines; have pitch control, over-speed regulation, and an automatic mechanical brake. Otherwise, it has no commercial value.
Our vertical turbines have very high system efficiency, which is comparable to that of large horizontal turbines; particularly in low wind speeds such as 3 – 8m/s. Our turbines perform even better than large horizontal turbines, as shown by the real-time monitoring of our operating turbines.
About Vertical turbine with power storage
As the photovoltaic (PV) industry continues to evolve, advancements in Vertical turbine with power storage have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.
When you're looking for the latest and most efficient Vertical turbine with power storage for your PV project, our website offers a comprehensive selection of cutting-edge products designed to meet your specific requirements. Whether you're a renewable energy developer, utility company, or commercial enterprise looking to reduce your carbon footprint, we have the solutions to help you harness the full potential of solar energy.
By interacting with our online customer service, you'll gain a deep understanding of the various Vertical turbine with power storage featured in our extensive catalog, such as high-efficiency storage batteries and intelligent energy management systems, and how they work together to provide a stable and reliable power supply for your PV projects.
