Segmented Stator Wind Turbine Generator with Integrated Conversion Assemblies
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Solution Overview
Problem
Existing wind turbines face inefficiencies due to the limited compatibility and reliability of mechanical and power electronic components, leading to underutilized power generation capacity and increased maintenance costs, particularly in the nacelle where space is constrained and numerous power cables are required.
Innovation Solution
The integration of preassembled conversion assemblies mechanically attached or integrally connected to segmented stator segments in wind turbines, allowing for redundant power transmission and easy replacement, reducing the need for additional protection and cooling systems, and enabling efficient testing before installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the nacelle contains all essential machinery and power electronic devices, then the wind turbine can function reliably, but the nacelle space becomes limited and requires numerous power cables adding costs
Solution Approach 1:
The stator is divided into multiple stator segments that can be assembled in different configurations. This segmentation allows the electrical components to be distributed more efficiently, reducing the need for extensive power cables and improving space utilization within the nacelle while maintaining functional reliability.
2Reliability
If electrical and mechanical components are operated with large margins for operating limitations, then component reliability is ensured, but wind turbine operation becomes inefficient and power generation capability is underutilized
Solution Approach 1:
The patent enables dynamic adjustment of operating parameters by allowing flexible configuration of stator segments and their connections. This permits the system to operate closer to component limits when conditions allow, improving efficiency while maintaining reliability through the ability to reconfigure and protect individual segments as needed.
3Reliability
If predefined rated power limits are designed into the wind turbine, then component compatibility is ensured, but easy testing of components before installation and efficient operation are hindered
Solution Approach 1:
The segmented stator design allows individual segments to be tested and validated independently before final assembly. This modular approach enables easier pre-installation testing of electrical and mechanical components while maintaining overall system compatibility through standardized segment interfaces and configurations.
Solution Approach 2:
The system allows dynamic reconfiguration of stator segment connections to match different rotor configurations. This flexibility enables components to be tested in various configurations before installation and allows the system to adapt to different operating conditions, improving both testing ease and operational efficiency.
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
This solution enhances the reliability and efficiency of wind turbines by reducing nacelle size, material costs, and maintenance complexity, while allowing for uninterrupted power delivery and simplified component exchange, thereby optimizing power generation and reducing downtime.
Implementation Method 1
The blades transform wind energy into a mechanical rotational torque that drives one or more generators via the rotor. The generators convert the rotational mechanical energy to electrical energy
Data Source
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AI summary
According to the present disclosure, a wind turbine power generator (118) including a stator (120) comprising at least one stator segment (120, 121), a rotor (122) rotatably mounted in the stator (120, 121) and one or more conversion assemblies (210, 220, 222) is provided. The one or more power conversion assemblies (210, 220) are attached to the at least one stator segment (120, 121).