Power System Equipment Introduction Assistance Device
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Solution Overview
Problem
Lack of publicly available detailed information on power systems hinders agencies from evaluating the impact of renewable energy integration and determining optimal installation locations and capacities for FACTS devices and storage, limiting their ability to stabilize power systems effectively.
Innovation Solution
A power system equipment introduction assistance device that calculates introduction points based on predetermined system information and evaluation indices, using complex network theory to assess stability and optimize device placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed information concerning the power system is obtained to determine optimal installation places and introduction capacities of FACTS devices and storage, then the evaluation precision of power system stability and device placement is improved, but the information availability deteriorates because such detailed information is owned by power companies and not disclosed to the public
Solution Approach 1:
The patent extracts only the necessary topological structure information from the complete detailed power system information, separating the essential network topology (buses, lines, generators, loads) from other detailed operational data. This extraction enables public access to sufficient information for stability evaluation without requiring disclosure of proprietary detailed information held by power companies.
Solution Approach 2:
The patent applies different information requirements to different evaluation purposes by focusing on topological structure information rather than complete operational details. The topological information provides locally sufficient quality for stability assessment and device placement optimization without needing comprehensive detailed information across the entire system.
2Measurement precision
If conventional calculation methods are used to evaluate power system stability, then the evaluation accuracy is improved, but the information requirement increases significantly requiring detailed power system information that is not publicly available
Solution Approach 1:
The patent extracts and utilizes only the topological structure information from the power system, eliminating the need for detailed operational parameters. This extraction approach maintains evaluation capability while significantly reducing information requirements to only what is publicly available.
Solution Approach 2:
The patent changes the evaluation parameters from detailed operational parameters (requiring extensive information) to topological structure parameters (readily available). By evaluating stability and device placement based on network topology rather than detailed operational data, the method achieves reasonable accuracy with minimal information requirements.
3Power
If transmission lines are extended to improve power system capacity and stability, then the transmission capacity is improved, but the cost and extension period increase significantly requiring several years and expensive infrastructure development
Solution Approach 1:
The patent performs preliminary evaluation of optimal FACTS device and storage installation locations using topological analysis before any physical infrastructure changes. This preliminary action identifies the most effective locations for capacity enhancement, enabling rapid deployment of cost-effective solutions without lengthy transmission line extension processes.
Solution Approach 2:
The patent changes the approach from physical infrastructure expansion (transmission line extension) to device-based capacity enhancement (FACTS devices and storage). This parameter change enables rapid capacity improvement through device installation rather than lengthy infrastructure construction, dramatically reducing both cost and time requirements.
Data Source
AI summary
Conventionally, optimum introduction assistance for devices including a FACTS device and a storage adapted to changes in impedance and a transmission capacity involved in an increase of renewable energy power supplies has not been achieved. Therefore, in order to solve the problem, the present invention provides a power system equipment introduction assistance device that calculates an introduction point of power system equipment coupled to a power system, the introduction assistance device including a calculating unit configured to calculate, on the basis of predetermined system information and information concerning the power system equipment scheduled to be introduced, a characteristic of the power system affecting the power system during the introduction of the power system equipment and calculate the introduction point of the power system equipment from a predetermined evaluation index related to the characteristic of the power system.