Power System Topology Analysis for Concurrent Device Maintenance
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Solution Overview
Problem
In complex power systems, device outages can trigger chain outages due to interconnected relationships, making predictive maintenance challenging and costly, as maintaining one device often requires another to be offline, leading to multiple unnecessary outages.
Innovation Solution
The method involves acquiring and analyzing the power system topology structure to identify unification sets of devices that share the same outage state, allowing for concurrent maintenance to minimize the number of outages and reduce maintenance impact on the power supply without the need for extensive backup systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices are maintained individually according to their own schedules, then each device can be maintained independently, but multiple outages occur causing greater disruption to power supply
Solution Approach 1:
The patent merges maintenance schedules of multiple devices into unified maintenance windows by identifying devices that can be maintained simultaneously without compromising power supply reliability. This combines previously separate maintenance activities into coordinated operations, reducing the total number of outages while maintaining individual device reliability standards.
2Reliability
If backup systems are implemented for all devices, then outage impact is reduced, but system complexity and cost increase significantly
Solution Approach 1:
The patent segments the power system into interconnected device groups based on topological relationships and power flow dependencies. By identifying which devices can be maintained together without affecting others, it creates maintenance clusters that reduce the need for comprehensive backup systems while maintaining adequate outage resilience through coordinated scheduling.
3Ease of operation
If maintenance is performed on interconnected devices at different times, then maintenance flexibility is maintained, but chain outages are triggered affecting more devices
Solution Approach 1:
The patent performs preliminary analysis of device interconnections and power flow relationships before scheduling maintenance. By pre-identifying devices that can be maintained together in unified windows, it prevents chain outages before they occur while maintaining operational flexibility through advance planning and coordinated scheduling approaches.
Data Source
AI summary
A topology structure of a power system is acquired. At least one unification set in the power system is identified based on the topology structure. Devices belonging to the same unification set have the same outage state. The at least one unification set is recorded, so as to concurrently maintain devices belonging to the same unification set. Advantageously, one or more embodiments reduce number of outages caused by power system device maintenance.