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Wind Turbines
3 Series · 6 Models
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Wind Turbines Overview
QDTB onshore wind turbines span the 2 MW, 3 MW and 5 MW classes for utility-scale and distributed wind power generation. Designed to IEC 61400 requirements with three-blade horizontal-axis rotors and doubly-fed induction generator (DFIG) or direct-drive permanent-magnet generator topologies, they deliver grid-code-compliant renewable power for onshore wind farms.
Available Series
WT 2MW Series
The 2 MW-class onshore wind turbine is a three-blade, horizontal-axis unit for utility-scale and distributed wind farms. Rated approximately 2 MW with a rotor diameter suited to moderate wind sites, it is designed to IEC 61400 requirements and available with doubly-fed induction generator (DFIG) or direct-drive permanent-magnet generator topologies for grid-connected power generation.
WT 3MW Series
The 3 MW-class onshore wind turbine is a large three-blade horizontal-axis unit optimized for utility-scale wind farms and good wind-resource sites. Rated approximately 3 MW and designed to IEC 61400, it offers a higher energy yield per foundation and a lower balance-of-plant cost per megawatt, with DFIG or direct-drive generator topologies and grid-code-compliant controls.
WT 5MW Series
The 5 MW-class onshore wind turbine is a high-capacity three-blade horizontal-axis unit for the largest onshore wind farms and the strongest wind-resource regions. Rated approximately 5 MW and designed to IEC 61400, it maximizes energy output per installation and minimizes balance-of-plant cost per megawatt, with direct-drive or DFIG topologies and full grid-code compliance.
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Application Scenarios
Utility-Scale Wind Farms
High-capacity turbines for grid-scale onshore wind generation.
Distributed Wind Projects
Community and industrial self-generation wind power.
Repowering
Replacing older low-rated turbines with higher-capacity units.
Hybrid Renewable Projects
Wind combined with solar PV and energy storage.
Technical Advantages
2–5 MW Classes
Turbines matched to site wind resource and project scale.
IEC 61400 Design
Compliance with international wind turbine safety requirements.
DFIG & Direct-Drive
Two generator topologies for different site and O&M strategies.
Grid-Code Compliance
Low/high-voltage ride-through and reactive power control.
FAQ - Wind Turbines
What is an onshore wind turbine?
What does IEC 61400 specify?
What is the difference between DFIG and direct-drive?
Which turbine size should I choose?
What capacity and voltage range is available for Wind Turbines?
What is the minimum order quantity (MOQ) for Wind Turbines?
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2 MW vs 3 MW vs 5 MW Onshore Class: How to Choose
| 2 MW Class | 3 MW Class | 5 MW Class | |
|---|---|---|---|
| Site access | Easiest — standard roads and crane sizes | Requires wider roads and a larger crane | Needs a purpose-built transport route and heavy crane |
| Transport | Blades and tower sections fit a standard low-loader | Longer blades and tower sections | Specialist blade trailers and large nacelle transport |
| Foundation | Smallest foundation and crane pad | Moderate foundation, larger crane pad | Largest foundation, with a heavy-lift pad |
| Land use per MW | Highest — more machines for the same capacity | Balanced | Lowest — fewer machines for the same capacity |
| Grid connection | Suits distributed and smaller collector systems | Suits utility collector substations | Needs a collector system sized for the block |
| O&M | More machines to visit for the same capacity | Balanced | Fewer machines, but each visit is heavier |
| Typical application | Distributed wind and constrained sites | Utility-scale onshore wind farms | Large onshore blocks and repowering |
Where QDTB® Onshore Wind Turbines Are Specified
Turbine class is chosen from the site before the machine is chosen: the wind resource, the transport route to the ridge and the crane that can reach it together decide whether a site takes the smaller or the larger machine. A constrained site with a narrow access road often delivers more energy with more small turbines than with fewer large ones it cannot physically reach.
Utility-scale onshore wind farms specify the larger classes where the road and crane access exist, because fewer machines mean fewer foundations and less collector cabling for the same capacity. Distributed wind projects and constrained sites stay on the smaller class, where the transport and foundation cost per MW is what actually decides the economics.
Hybrid renewable projects and repowering schemes mix turbine classes across a site, matching the machine to the wind resource at each position instead of standardising on one size. That is where a turbine supplier's class range matters more than any single model.
Turbines are designed to IEC 61400-1 with three-blade horizontal-axis rotors. Both doubly-fed induction and direct-drive permanent-magnet topologies are available across the 2 MW to 5.5 MW range at 0.69 kV, with grid-code compliance demonstrated at the point of connection.
Frequently Asked Questions
What is an onshore wind turbine?
An onshore wind turbine converts wind energy into electricity through a three-blade rotor driving a generator, for installation on land-based wind farms.
What does IEC 61400 specify?
IEC 61400 is the international standard series for wind turbine design, covering loads, structural integrity, electrical systems and performance verification.
What is the difference between DFIG and direct-drive?
DFIG uses a gearbox with a partial-scale converter, while direct-drive removes the gearbox and uses a full-scale converter with a permanent-magnet generator.
Which turbine size should I choose?
Turbine size depends on the wind resource, site access and project scale — larger turbines lower cost per megawatt but require stronger wind and larger logistics.
What capacity and voltage range is available for Wind Turbines?
QDTB® supplies Wind Turbines from 2 to 5.5 MW, with a 0.69 kV voltage rating.
What is the minimum order quantity (MOQ) for Wind Turbines?
One unit for standard products. Custom-designed equipment is quoted on specifications — send your parameters or drawings and our sales team will confirm the MOQ for your configuration.