Wind-PV Power Ratio Control for Grid-Stable Output
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Solution Overview
Problem
Wind power and photovoltaic systems face limitations in power adjustment, leading to operational disadvantages due to their intermittent and fluctuating nature, which affects their integration into the power grid.
Innovation Solution
A power control method that combines wind parameters and light intensity parameters with optimal power ratio conditions to adjust power output effectively, ensuring high efficiency in wind power and photovoltaic combined operation by determining power adjustment amounts and control instructions based on system characteristics and environmental data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wind power and photovoltaic systems operate independently without coordinated control, then each system can maintain its own operational simplicity, but the overall power output becomes highly fluctuating and difficult to integrate into the power grid
Solution Approach 1:
The patent merges wind power and photovoltaic systems into a unified power generation system with coordinated control. The control system integrates wind speed parameters, light intensity parameters, and power ratio conditions to jointly determine power adjustment amounts for both wind turbines and photovoltaic panels, transforming independent operations into a coordinated system that reduces overall power fluctuation and improves grid integration stability.
2Adaptability or versatility
If the power generation system uses simple operational modes, then the system is easier to operate and maintain, but the power adjustment capability is limited and cannot effectively respond to changing environmental conditions
Solution Approach 1:
The patent implements dynamic power adjustment by continuously monitoring wind speed parameters, light intensity parameters, and power ratio conditions. The control system dynamically calculates power adjustment amounts based on real-time environmental conditions and system state, allowing the power generation system to adaptively respond to changing conditions while maintaining automated operation that does not significantly increase operational complexity.
Solution Approach 2:
The control system employs feedback mechanisms by continuously detecting wind speed, light intensity, and current power output, then using this information to adjust power generation. The system monitors the actual power output and compares it with target values derived from environmental parameters and optimal power ratios, making real-time adjustments to maintain optimal operation and improve adaptability.
3Productivity
If the system maintains fixed power output ratios between wind and photovoltaic, then the operational control is simpler, but the system cannot optimize power output based on varying environmental conditions and loses efficiency
Solution Approach 1:
The patent changes the power ratio parameter dynamically based on environmental conditions. The control system calculates optimal power ratios by considering wind speed parameters, light intensity parameters, and current system state, then adjusts the power output distribution between wind turbines and photovoltaic panels accordingly. This allows the system to optimize productivity by adapting the power ratio to match prevailing environmental conditions rather than maintaining a fixed ratio.
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
This method enables effective power adjustment and ensures high efficiency in the combined operation of wind power and photovoltaic systems, improving their integration into the power grid by optimizing power output and reducing operational disadvantages.
Implementation Method 1
Wind power and photovoltaic have complementary advantages and are the right-hand man of renewable energy system
Implementation Method 2
Wind power and photovoltaic have complementary advantages and are the right-hand man of renewable energy system
Data Source
AI summary
The disclosure relates to the technical field of power control, a power control method for wind power and photovoltaic combined power generation is provided, and includes: obtaining wind parameters and light intensity parameters of a wind power photovoltaic combined power generation system, and simultaneously obtaining a current operation characteristic of the power generation system; determining a first power adjustment amount for the power generation system based on the wind parameters, and determining a second power adjustment amount for the power generation system based on the light intensity parameters; obtaining an optimal power ratio condition under the current operation characteristic; determining a power control instruction for a current power output value of the power generation system based on the first power adjustment amount and the second power adjustment amount according to the optimal power ratio condition, and performing power control on power units in the power generation system.