Simulated Power Converter Selection for Variable Sources
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Solution Overview
Problem
The challenge lies in determining the optimal power converter for variable power sources like PV panels and wind turbines, as existing methods lack a systematic approach to compare and select converters based on real-time environmental conditions, leading to inefficiencies in power generation and delivery.
Innovation Solution
A simulation system that mimics real-time environmental conditions using recorded or historical data, fed into a programmable logic circuit, which controls a simulated variable power supply to analyze and compare the efficiency of different power converters, determining the most efficient one for a specific location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple power converters are tested in real-world conditions to determine optimal performance, then the accuracy of efficiency comparison is improved, but the time and cost required for testing increases significantly
Solution Approach 1:
The patent creates a simulated copy of real-world environmental conditions in a laboratory setting. Instead of testing power converters in actual field conditions over extended periods, the system uses a programmable load and control system that replicates various environmental scenarios (different temperatures, wind speeds, solar irradiance levels) to evaluate converter performance. This copying approach maintains measurement accuracy while dramatically reducing testing time and costs.
Solution Approach 2:
The system performs preliminary testing and evaluation in a controlled laboratory environment before actual field deployment. By using the programmable load and control system to simulate various operating conditions in advance, the optimal power converter can be identified beforehand, eliminating the need for lengthy field testing and trial-and-error installations.
2Device complexity
If power converters are selected based on theoretical specifications without environmental simulation, then the planning and design process is simplified, but the actual energy yield and efficiency in specific locations cannot be optimized
Solution Approach 1:
The programmable load and control system serves multiple functions: it can simulate various environmental conditions (temperature, wind, solar radiation), test different power converter models, and evaluate performance metrics. This universal testing platform allows the system to maintain relatively simple operation while providing comprehensive evaluation capabilities that account for specific environmental factors, thereby optimizing energy yield without excessive complexity.
3Speed
If existing power converters are upgraded without prior simulation testing, then the implementation speed is increased, but the efficiency improvement potential is reduced due to lack of optimization
Solution Approach 1:
The system enables preliminary evaluation of different power converter options in the laboratory before actual field upgrades are implemented. By using the programmable load to simulate local environmental conditions and testing candidate converters in advance, the most efficient option can be identified beforehand. This allows for rapid, informed decision-making during the actual upgrade process, maintaining implementation speed while ensuring optimal energy efficiency through data-driven selection.
Data Source
AI summary
A method and apparatus use a programmable logic circuit to receive data representing environmental conditions such as irradiance, temperature, wind, snow, elevation, and the like, in a given location, to provide an input signal to a simulated variable power source which produces an output that approximates the output of a variable power source such as a photovoltaic panel that is subject to such environmental conditions. Power from the simulated variable power source is separately directed to each of a number of power converters and the efficiency of each power converter is tested to determine the optimum power converter for use with the variable power source in the given location.