Multiple Power Supply Integration Apparatus for Renewable Energy Stability
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Solution Overview
Problem
Renewable energy sources, such as wind and solar power, face instability due to natural fluctuations, making it difficult to provide a stable power supply, and existing hybrid generation systems are susceptible to sharp power fluctuations, requiring larger generators and motors to compensate for variable output.
Innovation Solution
A multiple power supply integration apparatus that includes a measurement unit, an optimum allocation search unit, and an allocation control unit to calculate and adjust the use allocation rate of various power supplies, optimizing electric energy output and stability using metaheuristic methods to stabilize power supply across multiple renewable energy sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If renewable energy sources are used to meet increasing energy demand, then clean and sustainable power supply is achieved, but unstable output and sharp power fluctuations occur
Solution Approach 1:
The patent combines multiple irregular power supplies (wind power generation, solar photovoltaic power generation, and other renewable energy sources) into a hybrid power generation system. By merging these diverse power sources, the system leverages their complementary characteristics to stabilize overall output, reducing sharp fluctuations while maintaining reliability and sustainability.
Solution Approach 2:
The patent implements dynamic allocation control that continuously adjusts the operating states of individual power supplies based on real-time conditions. The control unit monitors output levels and dynamically reallocates power distribution to maintain stable total output, allowing the system to adapt to changing environmental conditions and prevent sharp fluctuations.
2Reliability
If the size of motor and generator is increased to compensate for power fluctuations from larger wind power generation, then power supply stability is improved, but device complexity and cost increase
Solution Approach 1:
The patent changes the operational parameters of existing power supplies by dynamically adjusting their allocation rates rather than physically increasing equipment size. The control unit modifies operating states and power distribution parameters to compensate for fluctuations, achieving stability through parameter optimization instead of hardware expansion.
Solution Approach 2:
The patent uses measurement and calculation units to create virtual models of power supply behavior, allowing the system to predict and compensate for fluctuations through information processing rather than physical redundancy. The control system uses data copying and analysis to maintain stability without requiring oversized backup equipment.
Data Source
AI summary
A multiple power supply integration apparatus measures electric power and stability of power supplies, outputs thereof having irregularity. Based on measured values of the electric power and the stability, certainty of entire supply of the electric power when a use allocation rate of the power supplies is changed is indexed as an evaluation value. The multiple power supply integration apparatus adjusts each converter according to a use allocation rate corresponding to a largest evaluation value, thereby adjusting a magnitude of the electric power supplied from each power supply to a common power line.