Power Source Adjusting Power Amplification Coefficient
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Solution Overview
Problem
The challenge in power transmission and distribution systems is the difficulty in flexibly increasing or decreasing governor-free (GF) adjusting power to address short-period demand fluctuations, particularly with the rise of solar photovoltaic generation, which can lead to shortages in adjusting power supply.
Innovation Solution
A power source system comprising a generator, turbine device, and control device that monitors rotation speed, calculates adjusting power instruction values, and amplifies adjusting power based on an amplification coefficient to reduce frequency fluctuations, allowing for flexible adjustment of power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of power plants performing GF operations is increased to address short-period demand fluctuations, then the adjusting power supply capability is improved, but the device complexity and system cost increase
Solution Approach 1:
The invention changes the parameter of adjusting power amplification coefficient to enable existing power plants to provide amplified GF adjusting power. By adjusting the amplification coefficient parameter, the system can increase adjusting power supply capability without adding more power plants, thus avoiding increased device complexity while improving reliability
Solution Approach 2:
The invention enables existing power plants to perform multiple functions - both regular power generation and amplified GF adjusting power supply. By making the GF operation capability universal across existing plants through parameter adjustment, the system avoids the need for specialized additional equipment, reducing device complexity while improving adjusting power supply capability
2Measurement precision
If detailed instructions are provided for each location in the power transmission and distribution system, then the measurement precision and control accuracy are improved, but the loss of time increases due to processing complexity
Solution Approach 1:
The invention merges the frequency measurement and adjusting power calculation functions into a single integrated process at the power source. Instead of detailed location-by-location instructions, the system combines measurement data to calculate GF adjusting power instruction values directly, reducing processing time while maintaining necessary accuracy for short-period demand fluctuations
Solution Approach 2:
The system performs preliminary setup by pre-configuring the amplification coefficient and measurement parameters. This preliminary action enables rapid response during actual short-period demand fluctuations without requiring complex real-time processing of detailed location-specific instructions, thus reducing response time while maintaining measurement precision
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 solution enables flexible and efficient adjustment of power supply to match short-period demand fluctuations, enhancing the stability of the power transmission and distribution system by allowing for increased GF adjusting power without requiring a significant increase in the number of power plants performing GF operations.
Implementation Method 1
A power source (21) includes a generator (212), a turbine device (211), and a control device (210). The turbine device (211) drives and rotates the generator (212).
Implementation Method 2
a generator (212), a turbine device (211) that drives and rotates the generator (212)
Data Source
AI summary
A power source includes: a generator; a turbine device that drives and rotates the generator; and a control device that: monitors a rotation speed of the generator; calculates a first adjusting power instruction value corresponding to a deviation between a reference value and an observed value of the rotation speed of the generator; acquires an adjusting power amplification coefficient from an external device; calculates a second adjusting power instruction value indicating a degree of increase of the adjusting power, based on the first adjusting power instruction value and the adjusting power amplification coefficient; amplifies the adjusting power based on the second adjusting power instruction value; and outputs the amplified adjusting power to the turbine device to adjust power supply from the generator and reduces fluctuation of frequency in a power transmission and distribution system.