When choosing the right small wind turbine, you need to consider several factors to ensure it can meet your needs and operate effectively. Here are some key purchase suggestions:
Clarify usage requirements:
1. Power demand: First determine your power consumption and power consumption time in order to choose a wind turbine with appropriate power. The rated power of small wind turbines is usually between 500W and 10kW.
2. Installation environment: Consider the abundance of wind resources, wind speed stability, and space limitations of the installation location. Generally speaking, small wind turbines can start generating electricity when the wind speed is above 3-5 m/s.
Performance parameters:
Rotor diameter
The larger the rotor diameter, the larger the area for capturing wind energy, and the corresponding increase in power generation. Select the appropriate rotor diameter according to the wind speed conditions of the installation environment.
Cut-in wind speed
The cut-in wind speed refers to the lowest wind speed at which the wind turbine starts to generate electricity, and the cut-out wind speed refers to the highest wind speed at which the wind turbine stops generating electricity. These two parameters determine the effective working range of the wind turbine.
Power generation efficiency
Power generation efficiency is an important indicator for evaluating the performance of wind turbines, usually between 20%-30%. Choosing products with higher power generation efficiency can improve energy utilization efficiency.
Quality and brand
1. Blade material: It is preferred to use high-strength nylon composite blades, which have high strength, good toughness, UV resistance, corrosion resistance and strong wind resistance.
2. Bearings and magnetic steel: It is best to use imported or domestic first-line brands for bearings, such as Japanese NSK bearings, domestic Ha shafts, etc., to ensure high working efficiency, wear resistance and durability. For magnetic steel, it is recommended to use rare earth neodymium iron boron permanent magnets to improve efficiency and reduce deadweight.
3. Strong wind protection design: The wind turbine with tail rudder pre-bias design can automatically and accurately align with the windward direction, increase output power and take into account strong wind protection.
4. Carbon brush and brush ring structure: This device can effectively solve the problem of cable being twisted off and improve the safety and stability of use.
Other issues
Maintenance and care
Understand the maintenance cycle and maintenance methods of the product to ensure that the wind turbine can operate stably for a long time.
Cost-effectiveness evaluation
Comprehensively consider factors such as product performance, quality, price and after-sales service, and choose products with high cost-effectiveness.
After-sales service
Choose brands and merchants with good after-sales service guarantees so that problems encountered during use can be solved in a timely manner.