Variable Speed Generator Load-Based Control Method
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Solution Overview
Problem
Existing methods for controlling variable speed generators based on output voltage result in slow and unstable speed adjustments, failing to quickly respond to load changes and effectively limit loads to prevent damage.
Innovation Solution
A method that controls the speed of a variable speed generator by detecting and responding to the measured load, using a controller to adjust the speed based on a target speed determined from load sensing, with optional corrections from a voltage correction controller to achieve quicker and more stable responses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If speed control is based on output voltage feedback, then constant output voltage is maintained, but speed adjustments become slow and unstable
Solution Approach 1:
Instead of controlling speed based on voltage feedback (traditional approach), the patent inverts the control logic by using voltage as a correction factor to load-based speed control. The controller determines target speed primarily from measured load, then applies voltage-based corrections only when needed, reversing the traditional feedback hierarchy to achieve both fast response and voltage stability.
Solution Approach 2:
The patent introduces voltage correction as an intermediary mechanism between load-based speed control and final speed adjustment. Rather than directly controlling speed from voltage feedback, the system uses voltage error as a corrective intermediary that微调 (fine-tunes) the load-determined target speed, enabling stable voltage output without sacrificing speed response.
2Stability of the object's composition
If speed control is based on output voltage feedback, then voltage stability is maintained, but load limiting becomes difficult
Solution Approach 1:
The patent applies preliminary action by determining the target speed based on measured load before voltage corrections are applied. This pre-determination of target speed from load conditions enables proactive load limiting, as the system can anticipate and respond to load changes before they cause damage, while voltage correction ensures stability is maintained.
3Stability of the object's composition
If speed adjustments are made slowly to maintain stability, then system stability is preserved, but response to load changes becomes lethargic
Solution Approach 1:
The patent implements dynamics by making the control system adaptive and responsive to actual operating conditions. The controller dynamically adjusts speed based on real-time load measurements, with voltage correction applied adaptively when needed. This dynamic approach allows the system to respond quickly to load changes while maintaining stability through conditional voltage-based adjustments rather than uniformly slow responses.
Data Source
AI summary
Some embodiments relate to a method of controlling speed of a variable speed generator. The method includes detecting a load of the variable speed generator and determining a target speed for the variable speed generator based on the load supplied by the variable speed generator. The method further includes using a controller to adjust the speed of the variable speed generator based on the target speed. The method may further include correcting the target speed by calculating a correction factor that corrects the target speed based on a voltage produced by the variable speed generator.