HVDC Control Device Availability Monitoring
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Solution Overview
Problem
High voltage direct current (HVDC) systems lack effective methods for monitoring and evaluating the availability of their components, leading to inefficiencies and potential downtime, as existing technologies do not adequately measure or control system performance.
Innovation Solution
A control device is introduced that collects operating data from HVDC system components, calculates availability by determining the ratio of actual operation time to consumer request time, and performs evaluation and control actions to improve system performance, including prioritizing components and excluding low-weight components from data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If component availability monitoring is implemented in HVDC systems, then system reliability is improved, but device complexity increases
Solution Approach 1:
The control device automatically monitors component availability, calculates system availability metrics, and performs evaluation without requiring external intervention. The system self-manages the complexity of monitoring multiple components and computing availability statistics, reducing the burden on operators while improving reliability through continuous automated assessment.
2Measurement precision
If comprehensive component data collection is performed, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The control device selectively collects data from components based on their availability weight rather than monitoring all components equally. High-weight components that significantly impact system availability are monitored with greater precision, while low-weight components receive less intensive monitoring. This partial action approach achieves sufficient measurement precision for critical components without the time cost of exhaustive data collection from all components.
3Reliability
If system performance evaluation is continuously performed, then reliability is improved, but use of energy increases
Solution Approach 1:
The control device performs availability evaluation at periodic intervals rather than continuously. It collects component availability data, calculates system availability metrics, and performs evaluation at scheduled times. This periodic action maintains reliable availability assessment while significantly reducing energy consumption compared to continuous monitoring and evaluation processes.
Data Source
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AI summary
A control device (400) for a high voltage direct current (HVDC) system (100) is provided. The control device includes a communication unit (410) performing communication with a component in the HVDC system; and a control unit (430) enabling the communication unit to receive, from the component, data on an available state of the component, calculating availability of the HVDC system defined as a ratio of an actual operation time of the HVDC system to an operable time of the HVDC system based on data on the available state of the component, and then performing control of the HVDC system based on the data on the available state of the component and the availability of the HVDC system.