Dual-Rotor Wind Turbine Test Platform for Aerodynamic Coupling
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Solution Overview
Problem
Current full-power testing platforms are not designed for tandem dual-rotor wind turbine generator systems, failing to simulate the aerodynamic coupling effect between the two rotors and unable to perform full-power testing.
Innovation Solution
A full-power testing platform for tandem dual-rotor wind turbine generator systems, comprising a dragging frequency converter, unit converter, tandem dual-rotor transmission chain, dragging motor assemblies, signal acquisition instrument, load simulator, and hydraulic module, which applies driving torques to simulate the aerodynamic coupling effect and perform comprehensive testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing full-power testing platforms are used for single-rotor wind turbine generators, then single rotor aerodynamic force can be simulated, but tandem dual-rotor aerodynamic coupling force cannot be simulated
Solution Approach 1:
The testing platform is segmented into two independent driving systems, with each rotor having its own driving motor and control unit. This allows independent simulation of each rotor's aerodynamic characteristics while enabling the simulation of coupling effects between the two rotors, thereby resolving the contradiction between platform adaptability and testing accuracy for dual-rotor systems.
2Power
If transmission systems of tandem dual-rotor wind turbine generators are made longer and more complex to achieve high efficiency, then power output increases, but testing difficulty and safety risks increase
Solution Approach 1:
The testing platform introduces intermediary components including a multi-degree-of-freedom loading device, torque sensors, and specialized coupling mechanisms. These intermediaries enable the safe and controlled testing of complex transmission systems by providing precise load application, measurement capabilities, and protection against excessive forces, thereby allowing high-power testing while managing the risks associated with system complexity.
3Reliability
If comprehensive power tests are carried out on tandem dual-rotor wind turbine generators, then system safety and reliability can be ensured, but existing platforms cannot perform these tests due to design limitations
Solution Approach 1:
The testing platform is designed with universal multi-functionality, incorporating adjustable driving mechanisms, programmable control systems, and configurable loading capabilities. The platform can be configured to test both single-rotor and tandem dual-rotor systems, performing various test types including aerodynamic characterization, coupling effect analysis, and comprehensive power testing, thereby ensuring system reliability while maintaining broad platform compatibility.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables comprehensive full-power testing of tandem dual-rotor wind turbine generator systems, simulating the aerodynamic coupling effect and allowing for the verification of system performance, reliability, and safety.
Implementation Method 1
a dragging frequency converter, a unit converter, a tandem dual-rotor transmission chain, dragging motor assemblies
Data Source
Figure 1
Figure 2~3
AI summary
Disclosed are a full-power test platform and method for a tandem double-wind-wheel wind turbine generator set. The test platform comprises a driving frequency converter, a set converter, a tandem double-wind-wheel transmission chain, driving electric motor assemblies, a signal collector, a load simulator, and a hydraulic module, wherein two ends of the tandem double-wind-wheel transmission chain are respectively connected to the driving electric motor assemblies, the driving electric motor assemblies at the two ends are both connected to the driving frequency converter, and the set converter and the signal collector are both connected to the tandem double-wind-wheel transmission chain; the signal collector is connected to the load simulator, and the load simulator is connected to the hydraulic module; and the driving frequency converter and the set converter are respectively connected to an external power grid.