Power Distribution Restoration Planning With Isolated Switch Sections
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Solution Overview
Problem
Existing power restoration plans fail to efficiently restore power to as many customers as possible due to the lack of consideration for load capacity and isolated operation planning, leading to prolonged power outages and inefficient restoration efforts.
Innovation Solution
A restoration decision-making assistance apparatus and method that defines switch sections in a power system using adjacent switches, incorporates distributed power sources, and prepares isolated operation and restoration work plans to reconnect disconnected sections and address accidents or damaged facilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional restoration planning is used without isolated operation consideration, then restoration work can be performed sequentially, but the number of customers restored is limited and restoration time is prolonged
Solution Approach 1:
The power system is divided into multiple switch sections by adjacent switches, allowing independent restoration planning for each section. This segmentation enables parallel restoration operations across different sections, increasing overall restoration efficiency and reducing total outage time.
Solution Approach 2:
The system pre-identifies switch sections that can perform isolated operations by checking for distributed power sources or power source vehicles. This preliminary identification allows these sections to be restored immediately without waiting for main power restoration, reducing overall outage time.
2Productivity
If load capacity is not considered in restoration planning, then facilities can be restored in any order, but the efficiency of restoring customers from power outages is reduced
Solution Approach 1:
The system evaluates each switch section's load capacity and power supply capability locally, identifying sections where isolated operation can immediately restore power to critical loads. This local quality assessment enables prioritized restoration of high-value areas without requiring complex system-wide optimization.
3Area of stationary object
If isolated operation areas are not determined, then power sources cannot be effectively utilized, but without determination the power outage area cannot be minimized
Solution Approach 1:
Switch sections with distributed power sources or power source vehicles are identified as capable of self-powered isolated operation. These sections can independently restore power to their local areas without external assistance, minimizing the overall power outage area by creating self-sufficient restoration zones.
Data Source
AI summary
A restoration decision-making assistance apparatus and method are capable of restoring customers of a power outage by planning an isolated operation at the time of power outage restoration of a power distribution system and preparing a restoration work plan in consideration of the plan. A power system section, disconnected due to a power system accident, is connected to a power system again. A planning unit defines a switch section divided by adjacent switches for the disconnected section, and prepares an isolated operation plan with at least a switch section which includes a distributed power source therein or in which a power source vehicle is arranged as an isolated operation section. An isolated operation planning unit prepares an operation plan with a switch section in which a system accident is present as an isolated operation section and a restoration work plan is prepared for the isolated operation section.