Distributed Power Control for Secondary Regulation
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Solution Overview
Problem
Current systems fail to economically and efficiently involve small power plants in secondary level regulation of nation-wide or regional electrical power supply systems due to high initial costs, low energetic efficiency, and low availability, limiting their ability to provide stable and quick power adjustments.
Innovation Solution
A distributed power generation system with a central control apparatus that receives instantaneous power data from small power plants and adjusts their output based on system load, allowing for coordinated power control and high availability by instructing plants to increase or decrease production quickly in response to demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small power plants individually participate in secondary level regulation, then their availability and response speed improve, but the initial costs and device complexity increase due to required direct data transmission connections to the production control center
Solution Approach 1:
Multiple small power plants are merged into a distributed power generation system that collectively participates in secondary level regulation. The system aggregates their capacity to achieve system-level power range control, making individual direct connections to the production control center unnecessary while maintaining high availability and response speed.
Solution Approach 2:
A distributed power generation system acts as an intermediary between small power plants and the production control center. This intermediary manages data transmission and coordination, reducing the complexity of direct connections for each individual plant while ensuring reliable participation in regulation.
2Speed
If small power plants individually participate in secondary level regulation, then their response speed improves, but the initial costs increase due to direct data transmission connections to the production control center
Solution Approach 1:
Multiple small power plants are merged into a distributed power generation system that collectively participates in secondary level regulation. The system aggregates their capacity to achieve system-level power range control, making individual direct connections to the production control center unnecessary while maintaining high availability and response speed.
Solution Approach 2:
A distributed power generation system acts as an intermediary between small power plants and the production control center. This intermediary manages data transmission and coordination, reducing the complexity of direct connections for each individual plant while ensuring reliable participation in regulation.
3Reliability
If small power plants individually participate in secondary level regulation, then their availability improves, but the initial costs increase due to direct data transmission connections to the production control center
Solution Approach 1:
Multiple small power plants are merged into a distributed power generation system that collectively participates in secondary level regulation. The system aggregates their capacity to achieve system-level power range control, making individual direct connections to the production control center unnecessary while maintaining high availability and response speed.
Solution Approach 2:
A distributed power generation system acts as an intermediary between small power plants and the production control center. This intermediary manages data transmission and coordination, reducing the complexity of direct connections for each individual plant while ensuring reliable participation in regulation.
4Use of energy by moving object
If small power plants are used for power production, then the combined energetic efficiency improves, but the ability to provide system-level power control deteriorates due to lower nominal power and available free capacity
Solution Approach 1:
Multiple small power plants are merged into a distributed power generation system that collectively participates in secondary level regulation. The system aggregates their capacity to achieve system-level power range control, making individual direct connections to the production control center unnecessary while maintaining high availability and response speed.
Solution Approach 2:
The distributed power generation system enables small power plants to simultaneously maintain high combined energetic efficiency and provide system-level power control capability. By coordinating multiple plants, the system achieves both efficiency benefits of small plants and the power control capability required for secondary level regulation.
Data Source
AI summary
An apparatus and method for controlling the power generation of a distributed power generation system including a plurality of small power plants. The apparatus has a first communication interface unit to receive measured values of the instantaneous power generated by the small power plants, and to transmit to each of the small power plants, information relating to the individual power control thereof. A second communication interface unit receives, from a production control center, power values specified as a function of the instantaneous load of the power supply system. A central data processing unit determines the aggregate instantaneous power of the distributed power generation system based on the measured power values, determines the difference between the power specified by the production control center and the aggregate instantaneous power of the system, and generates power control information for each of said small power plants as a function of said power difference.