MISO Hybrid Power System Controller for Variable Source Optimization
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Solution Overview
Problem
Existing power systems struggle to maximize output from multiple disparate power sources, such as wind turbines and solar cells, due to highly variable energy input and complex relationships between environmental conditions and power production, making it challenging to capture the maximum power point from each source.
Innovation Solution
A multiple input single output (MISO) hybrid power system with an intelligent controller that samples and monitors input from various power sources, applies appropriate resistance, and uses a decision-making algorithm to achieve maximum power output, incorporating power converters and a hierarchical control system to manage and optimize energy production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple disparate power sources (wind turbines, solar cells) are used to increase energy input, then the system can capture more energy, but the variability of energy input and complex environmental relationships make it difficult to maximize power output from each source
Solution Approach 1:
The system divides the power management into separate control loops for each power source (wind turbine, solar cells, grid, generator). Each control loop independently manages its respective power source, allowing complex multi-source integration while maintaining manageable control complexity through modular segmentation of the control architecture.
Solution Approach 2:
The controller dynamically adjusts the desired input voltage for each power source based on real-time conditions. The system continuously searches for and tracks the maximum power point for each source, adapting to changing environmental conditions (wind speed, solar irradiance) to maximize power extraction while handling the variability inherent in renewable sources.
2Power
If the system integrates multiple types of power sources to increase energy capture, then more energy can be obtained, but controlling and optimizing the variable input becomes more difficult
Solution Approach 1:
The controller is designed as a universal multi-functional device that can manage multiple disparate power sources (wind, solar, grid, generator) through a unified control architecture. The same controller hardware and software framework handles all power sources, applying consistent control strategies across different energy types, which simplifies operation despite the diversity of inputs.
Solution Approach 2:
The system implements feedback control loops that continuously monitor the actual input voltage and power output from each source, comparing it against the desired maximum power point. The controller adjusts the duty cycle of power converters based on this feedback to maintain optimal operation, automatically adapting to changing conditions without requiring manual intervention.
3Productivity
If the system uses an intelligent controller with multiple control loops to maximize power from each source, then power optimization is improved, but the control system complexity increases
Solution Approach 1:
The control system is segmented into distinct, independent control loops for each power source. Each loop contains its own maximum power point tracking algorithm and control logic, allowing the system to optimize power extraction from multiple sources simultaneously while keeping each control module relatively simple and manageable.
Solution Approach 2:
The controller implements control loops for all available power sources, even though not all sources may be active simultaneously. This excessive action ensures that when any combination of sources is available, the system is already configured to optimize from each one, simplifying the control logic by always having the same structure ready rather than dynamically reconfiguring based on which sources are active.
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
The system efficiently generates a single, relatively constant output voltage, capable of powering loads and charging batteries while maximizing power from diverse energy sources, even under variable conditions, ensuring high efficiency and adaptability.
Implementation Method 1
the electronics system takes in variable power from a plurality of sources and outputs a precisely controlled voltage
Implementation Method 2
the electronics system takes in variable power from a plurality of sources and outputs a precisely controlled voltage that may simultaneously power a load and charge one or more batteries
Data Source
AI summary
A multiple input single output (MISO) hybrid power system includes an electronics system that maximizes output from multiple input sources of different types. In certain embodiments, the electronics system takes in variable power from a plurality of the input sources and outputs a precisely controlled voltage that may simultaneously power a load and charge batteries. The electronics system includes an intelligent controller that monitors input from the power sources and desired output of the system substantially constantly to control maximum power output from each power source. The controller runs through a decision making algorithm to obtain maximum power from the power sources and output a single constant load.