Power System Operation Planning for Typhoon Outage Prevention

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Solution Overview

Problem

Existing power system operation methods fail to effectively mitigate the social impact of multiple failures caused by natural disasters like typhoons, as they only respond after the event occurs, lacking proactive measures to prevent power outages.

Innovation Solution

A planned power system operation device that calculates and implements typhoon countermeasures by optimizing power station outputs, transmission line expansions, and substation reinforcements based on typhoon data and reliability economy indices to minimize power outages before disasters strike.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional power system operation methods are used, then system operation is simple and responsive, but the system cannot proactively prevent power outages caused by typhoons and multiple failures

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidoperation system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by calculating typhoon countermeasures and determining optimal power station outputs before the typhoon actually causes damage. The planned power system operation device computes countermeasure candidates and selects optimal operations in advance, enabling proactive prevention of power outages rather than reactive response after failures occur.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The operation system is segmented into distinct functional modules: a typhoon countermeasures candidate calculation unit that generates multiple countermeasure options, a reliability economy index value calculation unit that evaluates each option, and a typhoon countermeasures determination unit that selects the optimal countermeasure. This segmentation allows complex decision-making to be broken down into manageable, specialized components.

Inventive Principle:
Principle #1Segmentation

2Reliability

If proactive typhoon countermeasures are implemented, then power outage prevention is improved, but calculation and decision-making complexity increases

Engineering Contradiction:
Improvepower outage prevention capabilityVSAvoidcountermeasure calculation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system calculates multiple typhoon countermeasures candidate outputs and evaluates them before the typhoon event occurs. By performing these calculations in advance, the system transforms a complex real-time decision-making problem into a series of pre-computed evaluations, reducing the complexity during actual emergency response.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The reliability economy index value calculation unit provides feedback by evaluating each countermeasure candidate based on computed indices that balance reliability improvement against economic cost. This feedback mechanism guides the determination unit in selecting the optimal countermeasure, transforming complex multi-objective optimization into a structured evaluation process.

Inventive Principle:
Principle #23Feedback

3Reliability

If multiple failure countermeasures are taken, then system resilience is improved, but operational flexibility is reduced

Engineering Contradiction:
Improvesystem resilienceVSAvoidoperational flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adjusts power station outputs based on the selected typhoon countermeasures while maintaining the ability to respond to actual system conditions. The determined countermeasures provide a resilient baseline operation that adapts to the specific typhoon scenario, rather than imposing rigid fixed operations that would reduce flexibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (power station outputs) based on computed countermeasures while maintaining adaptability through the structured evaluation framework. By adjusting parameters systematically based on reliability economy indices, the system achieves enhanced resilience without sacrificing operational flexibility, as the framework can accommodate different typhoon scenarios and system conditions.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250286373A1Planned power system operation device and planned power system operation method
Publication Date: 2025.09.11 HITACHI LTD
  • US20250286373A1 patent drawing
  • US20250286373A1 patent drawing
  • US20250286373A1 patent drawing

AI summary

A planned power system operation device includes: a typhoon countermeasures candidate calculation unit that obtains typhoon countermeasures candidate calculation result data including a change value of an output of a power station for each typhoon countermeasures case from typhoon information data including at least course information and wind speed of a typhoon and system operation countermeasures candidate data including output information of a power station; a reliability economy index value calculation unit that obtains reliability economy index value calculation result data, which is an index value of reliability economy, from the typhoon countermeasures candidate calculation result data, system data indicating a system configuration, damage cost data associated with a power outage, and reliability economy index data indicating a weight on an influence of a power outage; and a typhoon countermeasures determination unit that obtains typhoon countermeasures determination result data from the reliability economy index value calculation result data.