Our main wind turbines
As a specialist wind turbine manufacturer, vanshol offers different wind power solutions that can be highly customized to your usage scenario.
5kw wind turbine
3kw small wind turbine for on-Grid,off-Grid and Telecom Applications
10kw wind turbine
5kw small wind turbine for on-Grid,off-Grid and Telecom Applications
20kw wind turbine
10kw small wind turbine for on-Grid and off-Grid power system
30kw wind turbine
30kw small wind turbine for on-Grid and off-Grid power system
Intelligent Wind Turbine Technology
Lead your green energy bathing lifestyle with the latest technology from Vanshol.
- Permanent magnet generators
- Pitch Control System
- Safe operation around the clock
- Stable operation over a long period of time
- Maximising the efficiency of power generation
- Low noise operation
- 3 years maintenance free
- All certificates are available
The Ultimate Guide Of Wind Turbines
Wind Turbines Types, System, Uses and More…
Chapter 1
What is Wind turbine?
A wind turbine is an energy transducer that converts wind energy into electrical energy. The higher the wind speed, the more energy we get from the wind. Wind power is therefore a sustainable and clean source of green energy.
It may come as no surprise to some that the main advantage of wind energy is that it is primarily climate-friendly, and thus does not pollute our planet. In addition, a calculation by the European Environment Agency showed that by 2020, existing wind turbines could cover three times the EU’s total electricity consumption.
Another advantage of a wind turbine is that they require relatively little space compared to the amount of electricity they produce. At the same time, wind turbine technology is developing rapidly. Wind turbine technology is getting bigger and more efficient as the cost of installing them falls.
Chapter 2
How did wind turbines work?
A wind turbine is one of the most widespread forms of renewable energy, and it plays a significant role in combating the world’s many climate problems. Turning wind energy into power – but how?
It has long been known that wind can be harnessed for energy. This has been seen for 1000 years, for example, in the way the wind powers sailing ships. Fortunately, a new technology has now been developed that allows us to harness the energy of the wind to turn it into power – a wind turbine. Electricity in our life comes from a variety of sources, including oil, gas, coal, solar, water and wind. A wind turbine is a renewable energy source and a good answer to the world’s many climate problems.
We know the importance of sustainable development of the environment, and we also know that wind energy can bring us clean energy, so vanshol has been obvious to spend resources on research into wind turbine technology. Domestic wind turbines are also seen in private homes as an alternative to solar PV, but these are far from widespread. This is because, among other things, it requires a number of permits from the municipality to set up a wind turbine.
In the old days, a windmill was used to grind grain and pump water, but today they can be put to much more sensible use – producing sustainable electricity for the many households.
How is wind energy converted into electricity?
A wind turbine is a transducer that converts the energy of the wind into electricity. The higher the wind speed, the more energy there is in the wind. That’s why most wind farms are located on the water.
In practical terms, a wind turbine works by the wind rotating the turbine blades, which creates electricity.
The blade of a wind turbine has a flat side facing the wind, which causes the wind pressure to rotate the blades. Wind is created around the blade as it rotates and cuts through the air. The blades are attached to a main shaft, and as the blades rotate, the shaft rotates at the same speed. At this speed, the axle turns a rotor of magnets inside a generator. This creates alternating current, due to six coils of wires that set electrons in motion.
A wind turbine is connected to our grid, which is an interconnected network for distributing electricity from different sources to our consumers. This is done through a series of wires on masts and cables in the ground.
Chapter 3
Components of wind turbines
- Generator
- Blades
- Blade shaft
- Flying rod
- Nose cone
- Wind rotor
- Maintenace window
- Tail vane
- Vertical shaft
- Controller and inveter
Every part of the wind turbine is important and every detail is tested and inspected by Vanshol.
- We use direct-drive permanent magnet wind turbines, which have the advantage of having no gearbox, which reduces transmission losses and increases the efficiency of power generation, especially in low wind conditions.
- The blades was profiles optimized using CFD simulations and made with the latest resin compounds based on acrylic urethane and epoxyin combination with composite carbon and giass fibre, high strength hardness and corrosion resistance.
- Patented, active variable pitch control system with passive safety features offers accurate control of the position of the blades and protects automatically in case of system failure, to a certain extent, it also increases the efficiency of power generation.
- Configurable controller electronics allows the turbine to adapt to the type of on-Grid or off-Gird connected providing maximum energy generation. Remote Monitoring ensures the wind turbine is operating at its peak performance at all times.
Chapter 4
Which wind turbine is most efficient?
We all know the wind generator that works converting the wind’s kinetic energy into mechanical energy and through a wind turbine into electrical energy, and we must know there are two main types of wind turbines with vertical and horizontal axis.
We’ll dive into the two main ones, such as the above vertical and horizontal axis wind turbines, and what they would be new proposals that try to make the most of it to the wind to produce electrical energy.
The conclusions show that the horizontal axis is more energy efficient than the vertical axis wind turbine.
vertical axis wind turbine
What is a vertical wind turbine?
A vertical axis wind turbine is essentially a wind turbine where the rotor shaft is installed vertically and can generate electricity regardless of the direction of the wind. The advantage of this type of vertical wind turbine is that it can generate electricity even in places with little wind and urban areas where building regulations generally prohibit the installation of horizontal wind turbines.
Vertical or vertical axis wind turbines are no need for orientation mechanism and what would be the electrical generator can be found on the ground. But its energy production is lower and it has some small handicaps as it needs to be motorized to get started.
How does a vertical axis wind turbine work?
In vertical axis wind turbines, the blades rotate with the force of the wind. Vertical wind turbines, unlike horizontal ones, are always in line with the wind. It doesn’t matter which direction it is, as they can work even when the wind is blowing at low speeds. The advantage of these vertical wind turbines is that they are smaller and lighter than wind turbines. Since they are smaller, they generate less energy.
Horizontal axis wind turbines
What is a Horizontal axis wind turbines?
- The horizontal axis are the most used and these are the ones we can find in the large wind farms where this type of wind turbines can be used over 1 Mw of power.
- It is basically a rotating machine where the motion is produced by the kinetic energy of the wind when acting on a rotor that usually has three blades. The rotational motion produced is transmitted to the direct-drive permanent generator, which is responsible for producing the electrical energy.
- All these components they stand on a gondola It is placed on top of a support tower. They are the conventional ones found in certain regions of our country that draw a different horizon and landscape but offer clean and cheap energy.
- Each wind turbine has a microprocessor that is responsible for the control and regulate its start-up, operation and shutdown variables. This feeds all this information and data to the installation’s control centre. Each of these wind turbines contains at the base of the tower a cabinet with all the electrical components (controller,inveter,dump load, etc.) that facilitate the transport of the generated electrical energy until the connection of the network or consumption point.
- The energy obtained from a wind turbine depends on the force of the wind passing through the rotor and is directly proportional to the density of the air, the area swept by its blades and the speed of the wind.
- The operation of a wind turbine is characterized by its power curve which indicates the range of wind speeds in which it can be operated and the power required in each case.Vertical or vertical axis wind turbines are no need for orientation mechanism and what would be the electrical generator can be found on the ground. But its energy production is lower and it has some small handicaps as it needs to be motorized to get started.
Which type of wind turbine is more efficient?
When it comes to energy efficiency, horizontal wind turbines are the ones that win the game. And that is that they are able to reach a higher rotational speed. In addition, because the construction of these wind turbines must be carried out quite high increased wind speed is used to a greater extent. In the upper layers of the atmosphere, the wind speed is higher, as it has no kind of obstacle. However, the horizontal axis is more energy efficient than the vertical axis wind turbine.
Chapter 5
What is variable pitch control tecnology?
The world’s leading centrifugal pitch-controlled technology
We went through a long test on our wind turbine. This authoritative test will include the following stages: 1. Design of the wind turbine tests. 2. Practical construction. 3. Design of model tools and expansion. 4. Design of regulators. 5. Test of running operation of the wind turbine. 6. Test of selected control strategies. 7. Outline of a demo wind turbine based on pitch and variable speed control.
As a result our wind turbines gain the following advantages:
- Big positive blade angle for initial(+9°), acceleration performance is excellent.
- Start up at 2.5m/s low wind speed.
- Below the rated wind speed, high-efficiency output.
- Above the rated wind speed, regulate pitch angle, keep the wind rotor rotate.
- Speed nearby the rated rotate speed, stable output power.
Chapter 6
What is on-Grid and off-Grid for wind power?
on-Grid Mode
On-grid means that your power generation system is connected to the power company’s grid.
Grid-connected means that you have to be connected to the public grid, which means that solar power, wind power, the home grid and the public grid are linked together, which is a power generation system that has to rely on the existing grid in order to operate.
However, on-Grid Mode also has its disadvantages, in that when the public grid is disconnected, solar PV power or wind power cannot be operate.
off-Grid Mode
off-Grid means that your power generation system is not connected to power company’s grid.
Off-Grid mode, this mode do not rely on the grid and operate independently, mainly consisting of wind turbines or solar panels, storage batteries, charge and discharge controllers, inverters and other components. It is also highly practical for households in areas without a grid or in areas with frequent power outages. In particular, it is very practical to use DC energy-saving lamps simply to solve the problem of lighting during power outages.
The off-grid power generation system is therefore specifically designed for use in areas without a grid or in premises in areas with frequent power outages.
Chapter 7
Are wind turbines loud?
Modern wind turbines emit significantly less noise than the earliest wind turbines from the 1970s and ’80s. In particular, the mechanical noise from the turbine’s has been reduced. In modern wind turbines, the engine house is soundproofed and the upgrade generator is mounted to reduce noise as much as possible. The design of the blades has been developed to limit noise.
So, The impact of modern life with wind turbines on our lives is minimal.
Chapter 8
Where wind turbines are located?
If the sole aim is to maximise the wind turbine’s electricity production, the simple answer is: where the wind blows the most! Although factors such as the location of the turbine in the cultural landscape also play a role when planning a wind farm project, how much it produces is of course very important.
In order to get a concrete and reasonably accurate assessment of the expected annual production of a wind turbine at a specific location, a so-called wind atlas calculation is carried out in the planning process, which includes:
- Wind statistics, using statistical information on wind conditions at the site.
- Landslide correction, which is used to correct the wind statistics data by geographical location.
- Terrain assessment, which includes an assessment of the “roughness” of the landscape around the mill; i.e. hills, forests, urban areas and other local lakes.
- Power curve showing the expected power of the selected turbine type at different wind speeds.
Wind Power Statistics
The wind statistics tell you how often it blows from different directions and with what strength. Take Denmark as an example, in most parts of Denmark, the wind blows mostly from the west and southwest, but in Northwest Jutland it blows mostly from the northwest. How much it blows varies from year to year. Variations of up to 20% are not unusual.
In addition to annual variations, the amount of wind also varies from region to region. In north-western Jutland, for example, wind energy is about 1.25 times the average for the country as a whole. In north-eastern Zealand, wind energy is multiplied by 0.85.
Another example of regional differences in the efficiency of a wind turbine is the type of landscape. A wind turbine located in a certain type of terrain – for example in a completely open, flat field – will produce 50 percent more energy in the best windy part of the country than in the worst windy part.
Map of Denmark showing the correction of the country.
Source: Danish Wind Turbine Association
Terrain assessment
The terrain around a wind turbine itself has a big impact on how much output the turbine can produce. By analysing maps and investigating the terrain in all corners of the world around the turbine site, the landscape can be divided into different classes of roughness.
The roughness classes range from 0 to 4, with class 0 being the best and class 4 the worst. They include the following landscape types:
- On water.
- Open farmland with few buildings and no shelterbelts.
- Farmland with some hedges and no buildings.
- Forests, towns, farmland with many shelterbelts.
- Towns with large buildings.
Wind atlas calculation showing the prevailing wind direction at a given location.
Source: Danish Wind Turbine Association
Chapter 9
Installation and maintenance
Installation of wind turbines
The installation of a wind turbine is generally divided into several parts:
- Installation of the concrete base, architectural drawings provided by Vanshol.
- Selection of the main lifting machinery.
- Installation of the tower.
- Installation of the generator.
- Installation of the blades.
- Connection to grid-connected or storage equipment.
When we are assembling a wind turbine, the general procedure is to first install all the components as a whole onto the iron pole and then to stand the pole upright. Vanshol reminds us that the impellers must be mounted firmly and reliably as they rotate in order to drive the generator by electromagnetic induction, which generates electricity, otherwise accidents can easily occur. Next we need to lead two wires from the terminals of the generator, the two wires will be connected to the storage equipment, storage equipment in the next will be stored from the generator in a continuous flow of current, therefore, we must ensure that the storage equipment storage power, and need to ensure the safety and reliability of the storage equipment.
Maintenance of wind turbines
After installation, wind turbines are always under the harsh test of nature. In addition to the wind, frost, rain, snow and sun, they may also be attacked by lightning, hail and sand. The working environment of wind turbines is very harsh, so the correct use and maintenance of wind turbines is particularly important, and the system of daily use and maintenance and regular use and maintenance should be established quickly to maintain the normal operation of the system.
1) Daily use and maintenance
Daily use and maintenance is to frequently and carefully check the wind turbine’s various fastening situation and the normal operation of the main components, in daily use should often observe the operation of the wind turbine, found that there is an abnormal sound and more violent shaking to be timely maintenance. If the wind turbine is not running smoothly, the head of the machine is shaking violently or there is an abnormal noise, it should be stopped immediately to check and exclude. Check the components of the wind turbine often, and find out the problem by looking, listening and checking. Look and listen to the generator whether there is violent shaking, abnormal noise, such problems should be immediately shut down to exclude.
2) Regular use and maintenance
Regular use and maintenance is preventive of regular inspection, regular lubrication, the main parts of the wind turbine should be disassembled and cleaned, the worn parts should be replaced, and the clearance of each ministry should be readjusted. Regular maintenance of wind turbines should be developed by the management and the technical person in charge of regular maintenance plans. A system of equipment technical files should be established to keep detailed records of the condition and maintenance of wind turbines. The establishment of equipment technical files is of practical significance to improve the use and management of wind turbines and to ensure the stable and safe operation of wind turbines.
(1) Regularly check the working condition of wind turbines. When the wind is blowing, observe whether the rotation of the wind turbine blades changes in time with the change in the size of the wind, and whether the wind turbine is adjusted in time with the change in wind direction. This check should be carried out at least once a month, and should be carried out after experiencing high winds.
(2) Regularly check the electrical wiring of the wind turbine. Check the electrical wiring once every six months, focusing on whether the wiring connection points are secure and whether the connection terminals are loose.
(3) Check, clean and lubricate all rotating parts once a year. The main working parts of the small wind turbine, such as the wind wheel, generator and tail fin, are mounted on the rotating body. The long sleeve of the slewing body and the light shaft at the upper end of the light pole should be kept well lubricated. In order to keep the tail rotating flexibly with the wind direction, so that the wind wheel is facing the wind. Generally wind turbines should be dismantled and scrubbed clean (can be cleaned with petrol) in half a year to a year, and re-lubricated (calcium-based grease). Note that there is a pressure bearing at the top of the shaft of the light pole should also be cleaned and greased back to its original position.
Chapter 10
How much does a wind turbine cost to install?
Every day we learn more about the environment and the changes we can make to better care for it – that’s why you should know about a wind turbine. Because it’s about all of us becoming more environmentally aware and focusing on sustainability. Because in the future, climate change will only increase, and therefore it will have a greater impact on future generations.
This is precisely why all the green alternatives and the good benefits they bring are winning. This can be seen in areas such as waste sorting, heat sources being switched to heat pumps, solar cells being placed on rooftops and, most importantly, domestic wind turbines. And these are actually gaining ground around the world.
So maybe it’s time you learned a bit more about wind turbines, because maybe one could be good for you and your wallet.
Prices of wind turbines
The prices for wind turbines vary greatly depending on the type, size and quality of the turbine. We usually start from 300w for small models, while a large and very efficient wind turbine can be 500kw. Here, however, The price budget here also needs to include the foundation and installation. There are many different types of wind turbines in the market, so you should research the market thoroughly before making your final decision.
You should also check how much you will benefit from a wind turbine. You do not want to place your wind turbine in the wrong direction and lose a large amount of free power.
Chapter 11
Can one wind turbine power a house?
HOW MUCH POWER CAN A WIND TURBINE PRODUCE?
How much power a wind turbine makes depends on how big the turbine is. For example, many large wind turbines are up to 150 metres high, while private domestic wind turbines can be no more than 25 metres high. So there will be a big difference in how much power each type of wind turbine can produce.
How much power a wind turbine produces per year will therefore be difficult to answer definitively, as it depends on the current wind conditions.
However, in order to roughly estimate how much power a given wind turbine could produce per year, wind turbine manufacturers use a power rating. It can track the energy company or other owner on how much power the wind turbine in question can deliver on an annual basis.
To show a data for a 5kw domestic wind turbine per year:
| Annual average wind speed (m/s) | 4 | 5 | 6 | 7 |
| Annual electricity production (kWh) | 3744 | 7298 | 12120 | 16980 |
Obviously, a 5kW wind turbine is sufficient to power a house.
Chapter 12
What to look for in a wind turbines Manufacturer
The search for a wind turbine supplier is to be able to offer you the right product and after-sales service.
Therefore, it should be positioned as follows: find trustworthy suppliers to achieve the goal of purchasing at a good value for money. And the supplier can maintain a good competitive edge for you based on quality, pricing, reliability and technological breakthroughs.
We know that the main components of wind power include blades, generators, bearings, electronic control systems, wind turbines and wind towers, and that each component needs to undergo rigorous examination and testing.
Vanshol is a global wind power total solution provider with the ability to independently design, build and operate wind farms, and is committed to becoming a global leader in clean energy equipment and services.
With its leading core wind power technology and outstanding cost advantages, Vanshol has been able to make a name for itself in the wind power industry, increasing its market share and ranking in the industry.
In terms of core components, Vanshol has the ability to independently develop and manufacture wind turbine blades and engines, as well as the ability to design some other core components. Compared with competitors who rely on outsourcing for all core components, the company’s products are more independently controllable and have lower overall costs.
In the wind farm design, construction and operation business, Vanshol has a professional wind farm design and EPC project management team, which owns and operates a number of wind farms and has established a comprehensive wind turbine operation database, providing positive feedback for the improvement and upgrading of upstream wind turbine products and operation and maintenance services.
After years of research and development, accumulation and independent innovation, we have formed a core technology system in digital top-level design, intelligent manufacturing, complete machine systems, core components, wind farm design and wind farm operation and management, as well as mature products and solutions in wind power products and operation and maintenance services, wind farm design, construction and operation and management.
From a product point of view, our wind turbine products have five main features: high tower, high power, long blades, light weight and intelligent control, and have the advantages of high configuration, high reliability, high power generation and low electricity cost.
In recent years, the “double carbon” goal to new energy generation to the wind, wind power in 2020, 2021 were ushered in the rush to install boom, in the coal energy shortage, thermal power costs go high background, wind power parity has become a major trend.
The advent of the price parity era has accelerated the progress of wind power generation technology and industrial upgrading on the one hand, and forced the wind power industry chain upstream to reduce costs on the other. Against this backdrop, we are committed to improving production efficiency and building a competitive cost advantage, and have achieved good cost reduction through a multi-pronged approach in design solutions, product development, production efficiency and supply chain assurance.
In terms of supply chain security, the company has achieved independent control of core components through independent research and development, design and production of blades and engines. At the same time, the company has also established a good and solid cooperation relationship with major first-line manufacturers of components.