Power System Line Parameter Error Detection
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Solution Overview
Problem
Current power system analysis simulations rely on static line parameters, which may be incorrect, leading to inaccurate results and errors due to the presence of noise in real-time dynamic data, as the static data are not verified for errors before simulation.
Innovation Solution
A simulation apparatus and method that compares surveyed data from a system line with set line parameters using a parameter error detector, calculator, comparator, and controller to determine if the line parameters are erroneous, adjusting the simulation accordingly to produce more accurate results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If static line parameters are used directly in system analysis simulation without verification, then the simulation can be performed quickly, but the accuracy and reliability of the simulation results deteriorate due to potential errors in the static data
Solution Approach 1:
The patent applies preliminary action by comparing surveyed data with static line parameters before performing the system analysis simulation. The parameter error detector pre- validates the static data by calculating surveyed line parameters from surveyed data and comparing them with stored static parameters, identifying errors in advance so that the subsequent simulation uses verified accurate parameters, thus improving result reliability without significantly impacting simulation speed
2Reliability
If static line parameters are verified by comparing with surveyed data before simulation, then the accuracy of simulation results is improved, but the complexity of the system increases due to additional error detection components and processes
Solution Approach 1:
The patent applies segmentation by dividing the simulation system into distinct functional modules: a parameter error detector module that compares surveyed data with static parameters, a calculator module that computes surveyed line parameters, and a system analysis simulator module. This modular segmentation allows the error detection function to be added as a separate component rather than integrating it throughout the entire system, thereby improving reliability while managing system complexity through organized functional separation
3Reliability
If static line parameters are verified by comparing with surveyed data before simulation, then the accuracy of simulation results is improved, but the time required for data processing increases due to additional comparison and calculation steps
Solution Approach 1:
The patent applies partial action by implementing selective error detection that focuses on comparing only the critical line parameters (such as resistance, reactance, and impedance values) between surveyed data and static parameters, rather than verifying every single parameter in the system. This partial verification approach identifies the most significant errors that would affect simulation accuracy while minimizing the additional processing time required, thus improving reliability without excessive time loss
Data Source
AI summary
A simulation apparatus includes a database configured to a set line parameter for a system line configuring a power system; a parameter error detector configured to compare surveyed data measured in the system line and the line parameter to detect error of the line parameter; a system analysis simulator configured to perform a system analysis simulation based on the surveyed data and the line parameter; and a monitor configured to display an error detection result of the line parameter from the parameter error detector and a system analysis simulation result performed in the system analysis simulator.