Overview of small wind turbine technology

Overview of small wind turbine technology

Core functions

Convert wind energy into electricity to provide clean electricity for off-grid or microgrid users. The single-machine capacity is usually between 100W-100kW.

System composition

Wind wheel system

2-5 composite blades

Aerodynamic optimization design

Rated starter wind speed 3-4m/s

Power generation system

Permanent magnet synchronous generator (mainstream)

AC or DC output

Efficiency can reach more than 85%

Control system

MPPT maximum power point tracking

Automatic windward yaw control

Speed protection device

Support structure

Tower height 10-30 meters

Lightweight steel structure

Simple basic design

Technical Features

Low wind speed start: Use an optimized airfoil, and the starting wind speed can be as low as 2.5m/s

Intelligent control: It has automatic brake and remote monitoring functions

Low noise design: special blade tip design, noise <45dB

Easy to install: modular design, on-site installation time <2 days

Application scenarios

Rural household electricity

Power supply to communication base station

Power supply at border posts

Electricity for agriculture, animal husbandry and fishery

Street light lighting system

Performance parameters

Rated power: 5-50kW

Working wind speed: 3-25m/s

Design lifespan: 20 years

Maintenance cycle: 1 year/time

Technical Advantages

Off-grid operation: can be independently powered or formed with photovoltaic system

Low-carbon and environmental protection: zero emissions, extremely low carbon emissions throughout the life cycle

Good economy: 5-8 years of investment payback period

Strong adaptability: can operate in high altitude, low temperature and other environments

Innovation direction

Lightweight composite blades

Develop vertical axis wind turbines

Intelligent micronet integration technology

Reduce manufacturing costs

Things to note

Wind resource assessment is required

Regular maintenance inspections

Pay attention to lightning protection

Comply with local installation specifications

Summarize

Small wind turbines are an important part of distributed energy, with high technological maturity and are especially suitable for power supply demand in remote areas. With the application of new materials and new technologies, their economy and reliability will continue to improve.