Generator Excitation Control Using Measured Operating-Point Interpolation
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Solution Overview
Problem
Existing controllable voltage generating devices require complex simulations and knowledge of parameters to determine characteristic curves, making it difficult to dynamically adjust to load changes and requiring extensive modeling and measurement processes.
Innovation Solution
A controllable voltage generating device that uses measurement technology to determine excitation signals by approaching defined operating points, eliminating the need for complex simulations and parameter knowledge, with a determination device calculating setpoints for excitation current or voltage based on power and speed values, allowing for simple and accurate mathematical determination of the excitation signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex simulation-based determination of characteristic curve is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system performs self-characterization by automatically determining its own characteristic curve through controlled operation at different operating points. The control device varies operating parameters, measures resulting values, and mathematically determines the characteristic curve without external simulation or complex modeling, making the system self-sufficient and eliminating the need for complex predetermined models.
2Manufacturing precision
If complex modeling and simulation processes are used, then manufacturing precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent replaces complex mechanical/mathematical modeling and simulation processes with a direct measurement and mathematical determination approach. Instead of using predetermined simulation models requiring extensive parameter input, the system directly measures operating values at different operating points and mathematically determines the characteristic curve, significantly simplifying the commissioning process.
3Stability of the object's composition
If disturbance control is implemented, then stability is improved, but device complexity increases
Solution Approach 1:
The control device continuously monitors actual operating values, compares them with the determined characteristic curve, and adjusts excitation signals to maintain stable operation despite load changes. This feedback mechanism enables automatic disturbance control by dynamically compensating for deviations from optimal operating conditions based on real-time measurements.
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 easy regulation of load fluctuations with minimal effort, providing precise and dynamic control of electrical excitation signals without the need for additional complex devices or expert knowledge, allowing for efficient operation of the voltage generating device.
Implementation Method 1
a generator device (10) which is separately electrically excited by an excitation device (20) and has a three-phase electrical output voltage
Implementation Method 2
a rectifier device (30) connected to the generator device (10), by means of which a rectified electrical output voltage (ud) is generated
Data Source
Figure 1
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AI summary
The invention relates to a controllable voltage-generating apparatus (100) comprising: - a mechanically driven separately excited generator device (10); - wherein an electric output voltage of the generator device (10) can be rectified using a rectifier device (30); - the voltage-generating apparatus (100) can be controlled by means of a control system (40, 50); - a voltage-control device (40) of the control system (40, 50) has a calculation device (42), by means of which an electric excitation signal for the generator device (10) can be calculated by means of a defined interpolation from measurement values of the electric excitation signals of the voltage-generating apparatus (100).