Modular Wind Power Converter for Harsh Marine Environments
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Offshore wind power converters face challenges such as high temperature, humidity, and corrosion, requiring enhanced environmental adaptability, reliability, and cost-effectiveness, with existing designs leading to complexity and high production and maintenance costs due to varied components for different capacity levels.
Innovation Solution
A modular intelligent combined wind power converter system comprising separate bridge arm power units connected in parallel, forming a high-capacity bridge arm power module, with integrated control units for active circulation, harmonic optimization, thermal stress balance, and self-adaptive power grid impedance control, enabling rapid capacity expansion and reduced component specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different specifications of wind power converters are developed for different capacity levels, then the converter can meet diverse application needs, but the device complexity and production difficulty increase significantly
Solution Approach 1:
The wind power converter is divided into standardized modular components (bridge arm power modules, three-phase full-controlled bridge power modules, basic converter modules) that can be combined in different quantities to achieve various capacity levels. This segmentation allows a single component type to serve multiple capacity requirements through modular assembly.
Solution Approach 2:
A single specification of bridge arm power module is designed to be universally applicable across different converter capacity levels. The same basic converter module can be used to build converters of various capacities by changing only the number of modules in parallel, eliminating the need for different component specifications.
2Adaptability or versatility
If multiple specifications of wind power converters are produced, then various application scenarios are covered, but the manufacturing cost and maintenance cost increase
Solution Approach 1:
By segmenting the converter into standardized modules, mass production of identical basic components becomes possible, reducing per-unit manufacturing costs through economies of scale. The same bridge arm power modules and basic converter modules can be mass-produced and then assembled into different capacity configurations as needed.
Solution Approach 2:
All converters use the same homogeneous basic converter module design, which simplifies the manufacturing process, reduces tooling costs, and enables standardized production lines. This homogeneity across different capacity levels significantly reduces overall manufacturing complexity and cost.
3Reliability
If traditional wind power converter designs are used, then existing technology is maintained, but environmental adaptability to high temperature, humidity and corrosion is insufficient
Solution Approach 1:
The converter is segmented into modular basic converter modules that can be independently enclosed and protected. Each module can be designed with its own environmental protection measures (sealing, cooling, corrosion-resistant materials), making it easier to achieve high environmental adaptability compared to a monolithic design.
Data Source
AI summary
The present invention discloses a modular intelligent combined wind power converter and a control method thereof. The modular intelligent combined wind power converter comprises separate bridge arm power units, wherein a plurality of the bridge arm power units are connected in parallel to form a high-capacity bridge arm power module, three bridge arm power modules form a three-phase full-controlled bridge power module, and the three-phase full-controlled bridge power module comprises an electric reactor, a capacitor, a fuse and a circuit breaker to form a basic converter module, and the basic converter module forms a high-capacity wind power converter through a modular intelligent combination method.