Load distribution method for multi-line power restoration after power distribution network fault
A technology for distribution network faults and load distribution, applied in circuit devices, AC network circuits, electrical components, etc., can solve the problems of long time, poor solution stability, time consumption, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0067] Such as Figure 1-4 , the nouns involved in the present invention are explained as follows:
[0068] Non-fault outage area: The power outage area downstream of the faulty line fault after a fault occurs in the distribution network and the fault is removed.
[0069] No power loss area: The distribution network continues to maintain the normal power supply area after a fault occurs in the distribution network and the fault is removed.
[0070] Power supply path: the line from the power supply point to the tie switch node.
[0071] Primary support feeder: The power supply path whose tie switch is directly connected to the non-fault de-energized area.
[0072] Secondary supporting feeder: The supply path whose tie switch is connected to the primary supporting feeder.
[0073] Total load in the power-off area: the sum of all node loads (apparent power) in the non-fault power-off area.
[0074] Critical load distribution ratio: the percentage of the load distributed by th...
example 1
[0171] The present invention takes the IEEE33 node system as an example, when the node 6-7 line section fails to be removed, such as figure 2 shown.
[0172] 1) Nodes 7-17 become non-fault power-off areas, and the total load of the power-off areas is 966.29kW. There are three contact switches 7-20, 11-21, and 17-32 connecting the power supply area and non-fault power-off areas, as shown in the table 1.
[0173] 2) Set the reference voltage to 10kV, and the total load current I in the non-fault de-energized area = 96.629A.
[0174]3) According to the allowable deviation of the three-phase power supply voltage of 10kV and below in our country, the voltage threshold can be set to 9.33kV, and the steps (4), (5) and (6) in the fault recovery process of the distribution network can be set. ), the critical load distribution ratio of each tie switch is calculated, as shown in Table 2.
[0175] 4) Because the tie switches 7-20 and 11-21 are on the same line, only one of them is sel...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com