Construction of anticipated risk scenario set and model-based response method for AC / DC power distribution system
By building an expected risk scenario set and response strategy library for AC and DC distribution systems, the problem that traditional N-1 criteria are difficult to deal with uncertain factors is solved, and the rapid response and safe operation of system risk scenarios are achieved.
CN119204695BActive Publication Date: 2025-03-25NANJING UNIV OF SCI & TECH +1
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Patent Information
- Application Number
- CN202411688445.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2044-11-25
AI Technical Summary
Technical Problem
The traditional N-1 criteria are difficult to fully reflect uncertainty factors in the power system, resulting in inefficiency in risk assessment and regulatory strategy design.
Method used
By traversing the distribution network, receiving active and reactive resource information, using the 2n+1 point estimation method and the DistFlow current equation, combining fuzzy comprehensive evaluation and Euclidean distance similarity function, an expected risk scenario set and response strategy library for the AC-DC distribution system are constructed.
Benefits of technology
It realizes rapid and effective response to risk scenarios in AC and DC distribution systems, and improves the safe operation level and response speed of the system.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses a method for constructing a set of anticipated risk scenarios for AC and DC power distribution systems and a patterned response method, and relates to the technical field of steady-state analysis of power systems. The present invention includes: traversing the distribution network, receiving all adjustable active resource information and reactive resource information, and organizing their operating characteristics; using 2n+1 point estimation method probability flow and Cornish‑Fisher series expansion, and using an interval flow algorithm based on the DistFlow flow equation to comprehensively construct an AC and DC power distribution system operation risk assessment index. The present invention includes the over-limit probability and over-limit degree of node voltage and branch power, and proposes to construct an AC and DC power distribution system operation risk assessment system considering multi-dimensional factors. The assessment result is more accurate, and the response method proposed in the present invention realizes the rapid and effective response to the risk scenarios of the AC and DC power distribution system, and effectively improves the safe operation level of the AC and DC power distribution system.
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