Integrated Three-Phase Power Supply Rotation Detection
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Solution Overview
Problem
Existing power supply devices lack the capability to effectively analyze network parameters of the input-side supply network, requiring complex and expensive external devices for monitoring, which is inefficient and costly.
Innovation Solution
Integration of a network analysis device within the power supply device that determines and outputs network parameters, such as the direction of rotation of a three-phase supply network, allowing for improved network analysis without the need for external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate network analysis devices are used to monitor network parameters, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the network analysis device with the power supply device into a single integrated unit. The network analysis device shares the housing and power supply with the voltage converter, eliminating the need for separate external analysis equipment. This merging maintains measurement precision while significantly reducing device complexity and cost.
Solution Approach 2:
The integrated network analysis device performs multiple functions: it monitors network parameters, determines direction of rotation, and provides this information through the message output. By making the power supply device universal (capable of both power conversion and network analysis), the patent eliminates the need for separate specialized devices.
2Adaptability or versatility
If separate network analysis devices are used, then network parameter monitoring capability is improved, but ease of operation deteriorates
Solution Approach 1:
By integrating the network analysis device with the power supply device, the patent creates a single unit that performs both power conversion and network monitoring. This eliminates the need for users to connect and operate separate external analysis devices, significantly improving ease of operation while maintaining full network parameter monitoring capability.
Solution Approach 2:
The power supply device performs network analysis on its own without requiring external specialized equipment. The integrated device monitors network parameters autonomously and outputs the information directly, allowing the system to serve itself and eliminating the need for users to manage separate analysis devices.
3Device complexity
If no network analysis device is integrated, then device complexity is reduced, but loss of information increases
Solution Approach 1:
The patent merges the network analysis device with the power supply device, creating an integrated unit that maintains full network parameter monitoring capability while avoiding the need for separate external devices. This preserves information completeness without increasing overall system complexity.
Solution Approach 2:
The integrated network analysis device acts as an intermediary between the power network and the user/system. It captures network parameter information that would otherwise be lost, processes it, and makes it available through the message output, thereby preventing information loss without requiring complex external analysis equipment.
Data Source
AI summary
A power supply device for supplying at least one load from a three-phase supply network includes: a) a voltage converter with an input for connection to the three-phase supply network and an output for supplying the at least one load; b) a network analysis device for network analysis and generating at least one network parameter; and c) a message output. d) The network analysis device outputs the at least one network parameter at the message output. e) The at least one network parameter indicates a direction of rotation of the three-phase supply network at the input of the voltage converter.