Waveform-Based Power Output Evaluation for Grid Interconnection
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Solution Overview
Problem
The increasing number of electric power output apparatuses connected to the distribution network makes it difficult to perform examinations conforming to interconnection regulations, potentially allowing substandard devices to connect, which can hinder demand response services by failing to meet output performance expectations.
Innovation Solution
A control apparatus and method that includes receiving attribute information from electric power output apparatuses, determining output conditions based on this information, processing output waveform data, and evaluating the performance of these devices to ensure they meet specified output values, thereby preventing substandard connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If examinations conforming to interconnection regulations are performed on all electric power output apparatuses, then the quality and reliability of connected devices are ensured, but the increasing number of devices makes it physically difficult to perform examinations on all apparatuses
Solution Approach 1:
The patent uses waveform data from actual device operation as a copy or representation of device performance characteristics. Instead of examining each physical device individually, the system analyzes copied operational waveforms to evaluate whether devices meet interconnection regulation requirements, enabling scalable quality assessment without physical examination bottlenecks
Solution Approach 2:
The patent replaces manual physical examination processes with automated waveform analysis using a control apparatus. The mechanical/manual examination system is substituted with an electronic automated system that processes waveform data to determine compliance with interconnection regulations, significantly increasing examination capacity while maintaining quality standards
2Ease of operation
If electric power output apparatuses are allowed to be connected without examinations, then connection speed and ease of operation are improved, but substandard devices may connect and fail to meet output performance expectations
Solution Approach 1:
The patent performs preliminary waveform analysis and evaluation before allowing device connection to the electric power distribution network. The control apparatus evaluates waveform data obtained during a test period to determine in advance whether the device meets interconnection regulation requirements, ensuring that only compliant devices are permitted to connect, thus maintaining reliability while simplifying the connection process
Solution Approach 2:
The patent implements a feedback mechanism where waveform data from device operation is continuously monitored and evaluated. The control apparatus provides feedback on whether the device meets performance requirements, and this information is used to determine connection permission. This closed-loop feedback system ensures output performance guarantees while maintaining ease of operation through automated decision-making
Data Source
AI summary
Provided is a server (10) including an attribute information receiving unit (15) which receives attribute information of an electric power output apparatus (30) from the electric power output apparatus (30) having a function of outputting electric power; an output condition transmitting unit (18) which transmits an output condition determined in accordance with the attribute information to the electric power output apparatus (30); a processing result receiving unit (16) which receives a processing result obtained by performing predetermined processing on output waveform data at the time when the electric power output apparatus (30) outputs electric power according to the output condition; and an evaluating unit (17) which evaluates an electric power output performance of the electric power output apparatus (30) on the basis of the processing result and the output condition.