Modular Adjustable-Speed Drive Stacked Configuration
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Solution Overview
Problem
Traditional medium-voltage adjustable-speed drives are limited to side-by-side installations due to their large and heavy design, making them unsuitable for environments with space constraints, particularly where horizontal or vertical space is limited.
Innovation Solution
The design of an adjustable-speed drive system that allows for installation in either side-by-side or vertically stacked configurations, utilizing improved housing configurations and equipment design to accommodate different space requirements, with the power inverter module positioned proximate and elevated above the transformer module in the stacked configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional side-by-side configuration is used, then the adjustable-speed drive can be installed with standard housing design, but the horizontal footprint area is too large for space-constrained locations
Solution Approach 1:
The patent transitions the adjustable-speed drive from a horizontal side-by-side arrangement to a vertical stacked arrangement, utilizing the vertical dimension to reduce horizontal footprint. The inverter module is positioned above the transformer module, allowing installation in locations with limited horizontal space while maintaining all necessary functional connections.
Solution Approach 2:
The housing design is made universal by incorporating features that accommodate both side-by-side and stacked configurations. The housing includes removable panels and standardized mounting interfaces that allow the same housing structure to support either arrangement, providing installation flexibility without requiring multiple specialized housing designs.
2Area of stationary object
If the adjustable-speed drive is designed for compact installation, then space constraints are satisfied, but protection from environmental elements may be compromised
Solution Approach 1:
The housing incorporates removable panels that can be taken off to provide access to the modules while maintaining protection when installed. These panels act as flexible protective barriers that can be opened for maintenance or configuration changes and closed to protect against environmental elements like dust, moisture, and debris.
Solution Approach 2:
The inverter module is positioned within the housing structure in a nested arrangement that allows it to be protected by the housing enclosure while maintaining access to necessary connections. The modular design allows each module to be independently protected while fitting within the overall compact housing structure.
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 installation in a variety of locations previously unsuitable due to space and size restrictions, providing flexibility and adaptability to meet specific installation needs while maintaining efficient operation and protection from environmental elements.
Implementation Method 1
The transformer-module receives a high voltage alternating current ('AC') stream and lowers the voltage to a usable level
Implementation Method 2
The power inverter module takes the AC stream and converts it to a direct current ('DC') stream
Implementation Method 3
The adjustable-speed drive may then control the output of the DC stream so as to simulate a wide range of AC output streams
Data Source
AI summary
Presently disclosed embodiments are directed to an adjustable-speed drive comprising a transformer module and an inverter module configured for installation in either of a side-by-side or stacked configurations. The disclosed embodiments utilize a modular design for the transformer and inverter modules. Thus, the adjustable-speed drive is capable of being installed in either of a side-by-side configuration or a stacked configuration. This modular design allows for installation at a site in accordance with the space limitations of any given location.