Wind Turbine Switchgear Layout for Modular Fault Interruption
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Solution Overview
Problem
Existing wind turbine systems face challenges in efficiently interrupting current paths and interconnecting multiple systems while maintaining a compact and gas-insulated design, particularly in limited space and ensuring reliable operation.
Innovation Solution
A wind turbine system with three electrical energy transmission modules, each equipped with a power circuit-breaker, allows for interrupting current paths and interconnecting multiple systems, featuring gas-tight encapsulation, space-saving arrangements, and integrated current monitoring and grounding switches, with optional modules without circuit-breakers for cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple power circuit-breakers are installed to enable interruption of current paths and interconnection of multiple wind turbine systems, then the reliability and versatility of the system improve, but the device complexity and space requirements increase
Solution Approach 1:
The electrical energy transmission system is divided into three separate electrical energy transmission modules, each with its own power circuit-breaker. This segmentation allows independent control and interruption of different current paths, enabling reliable system operation while maintaining modular complexity management.
Solution Approach 2:
The power circuit-breakers are designed to serve multiple functions: interrupting current paths within a single wind turbine system, enabling interconnection of multiple wind turbine systems, and providing protection against faults. This multi-functionality reduces the need for separate specialized devices.
2Adaptability or versatility
If multiple power circuit-breakers are installed to enable interruption of current paths and interconnection of multiple wind turbine systems, then the adaptability of the system improves, but the device complexity and space requirements increase
Solution Approach 1:
The system is segmented into three electrical energy transmission modules that can be independently configured. This segmentation provides flexibility in how wind turbine systems are interconnected while keeping each module's complexity manageable.
Solution Approach 2:
The system configuration is made dynamic through the ability to selectively open or close power circuit-breakers based on operational requirements. This allows the system to adapt its topology (series or parallel connections) without requiring permanent structural changes.
3Reliability
If three electrical energy transmission modules with gas-tight encapsulation are used, then the reliability and insulation performance improve, but the volume and weight of the system increase
Solution Approach 1:
Three electrical energy transmission modules are combined within a single tower structure with gas-tight encapsulation. This merging provides the benefits of gas insulation for all modules while sharing the common gas envelope space, reducing the total volume compared to three separate enclosures.
Solution Approach 2:
The electrical energy transmission modules are nested within the gas-tight encapsulation of the tower. This nesting arrangement allows the modules to utilize the available tower space efficiently while maintaining the protective gas-insulated environment.
4Volume of stationary object
If cable terminal boxes are arranged below the first housing parts, then the space utilization improves, but the manufacturing and assembly complexity increase
Solution Approach 1:
The cable terminal boxes are arranged in the vertical dimension below the first housing parts, utilizing the vertical space within the tower. This vertical arrangement optimizes horizontal space utilization while organizing components in a structured hierarchical manner.
Solution Approach 2:
The cable terminal boxes are pre-assembled and positioned below the housing parts during the manufacturing stage. This preliminary arrangement simplifies the final assembly process by pre-organizing components in their operational positions.
Data Source
AI summary
A wind turbine system contains a generator, a tower, and an electrical energy transmission system which is arranged in the tower and which contains a bus bar and three mutually adjacent electrical energy transmission modules. Each electrical energy transmission module has a current path that connects the bus bar to a cable termination of the electrical energy transmission module. At least two electrical energy transmission modules each contain a circuit breaker by which the current path of the electrical energy transmission module can be interrupted. The cable termination of one of the electrical energy transmission modules containing a circuit breaker is connected to the generator.