Power Generation Controller Output Allocation for Backfeed Prevention
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Solution Overview
Problem
In distributed power generation systems, power generation controllers with different specifications and operational characteristics require individualized control to optimize power output, as a single output command value may not effectively manage controllers with varying capacities and performance levels, leading to inefficiencies and potential backfeeding.
Innovation Solution
A control program for a power generation system that calculates an output command value for each power generation controller based on real-time power consumption levels and system capacity, allowing for dynamic adjustment of output levels to match individual controller capabilities and optimize overall system efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same output command value is provided to all power generation controllers, then the control system is simple and easy to operate, but the power generation efficiency is reduced and backfeeding may occur due to individual differences in controller response speeds and characteristics
Solution Approach 1:
The patent segments the control approach by dividing power generation controllers into groups based on their response characteristics and individual differences. Instead of applying a single uniform output command value to all controllers, the system calculates and applies different output command values to different groups or individual controllers, thereby optimizing power generation efficiency while maintaining manageable control complexity
Solution Approach 2:
The patent changes the control parameter from a single uniform output command value to multiple differentiated output command values. By calculating individual output command values based on each controller's response speed and characteristics, the system optimizes power generation efficiency without significantly increasing control complexity
2Productivity
If individualized output command values are calculated for each power generation controller, then power generation efficiency is optimized and backfeeding is prevented, but the control system complexity increases
Solution Approach 1:
The patent reduces control system complexity by segmenting controllers into groups with similar characteristics and applying group-based output command values rather than fully individualized control. This segmentation approach maintains optimization benefits while simplifying the control architecture and reducing computational burden
Solution Approach 2:
The patent implements a universal control framework that can adapt to different controller types and characteristics. The control terminal uses a standardized process to calculate output command values that works across diverse power generation controllers, reducing the need for controller-specific control logic and thereby reducing overall system complexity
3Adaptability or versatility
If power generation controllers with different specifications are used, then system adaptability and versatility are improved, but control precision is reduced due to varying response speeds and characteristics
Solution Approach 1:
The patent applies local quality by tailoring output command values to the specific characteristics of each controller or controller group. The control terminal calculates differentiated output command values based on individual controller response speeds and specifications, ensuring that each controller operates at optimal precision despite hardware variations
Solution Approach 2:
The patent compensates for hardware variations by dynamically adjusting control parameters (output command values) based on each controller's characteristics. This parameter adaptation maintains control precision across diverse controller specifications while preserving system adaptability
Data Source
AI summary
A power generation system including multiple power generation controllers responds to a changeable power consumption level and efficiently supplies power from power generators to loads. A program is used for a control terminal to control output power of a power generation system. The power generation system includes multiple power generators and multiple power generation controllers to control output power generation levels of the respective power generators. The program is executable to perform operations including obtaining a power consumption level of a load, obtaining a total power generation level of the power generation system, determining whether to tighten or loosen control by calculating a total allowable power generation level of the power generation system based on the power consumption level and the total power generation level, and calculating, based on a result of the determining, an output command value at a current time (t=t1) for each power generation controller.