Judgment method of 220kv power grid complex protection action based on scada steady-state information
A technology of protection action and steady-state information, applied in the direction of emergency protection circuit devices, electrical components, etc., can solve problems such as inability to comprehensively judge, delay of protection action information, lack of protection action information, etc., to improve emergency response capabilities and accurate analysis and judgment high degree of adaptability
Active Publication Date: 2020-06-02
STATE GRID TIANJIN ELECTRIC POWER +2
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
On the one hand, the current protection action fast judgment system is hindered by the performance of the industrial computer and the reliability of the communication channel. The protection action information provided by it has a certain delay, and it only reflects the protection action information. It cannot make comprehensive judgments on more complex situations and cannot analyze The connection between several action protections; the comprehensive intelligent alarm application only reflects the tripping equipment, lacks protection action information, and cannot locate the root fault equipment in more complex situations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0034] A 220kV power grid complex protection action judgment method based on SCADA steady-state information is based on the identification of the topological structure of the power grid and substation under its jurisdiction, and according to the equipment category and real-time status, protection configuration principles and action time limit, the switch protection action of the whole station Establish a mathematical model described by vector or matrix for the feasible solution, protection action priority, and substation switch remote signal displacement when a fault occurs, and use the binary group table method to calculate and evaluate the matching degree between the protection action behavior and the switch state change in the substation during the fault occurrence, and Filter the results according to the protection action priority. When mor...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a 220kV power grid complex protection action determination method based on SCADA steady state information. The method comprises the steps of: based on real-time topologies andprotection configuration principles in a power grid and transformer substations, automatically generating the protection configuration and action trip rule information table and the protection priority column vector of each transformer substation; expressing a matrix in a binary group table form; and selecting one or more than one elements as a final determination result of action protection. The220kV power grid complex protection action determination method is reasonable in design, establishes a mathematical model described by vectors or matrixes for the feasible solution of the whole station switch protection, the priority of the protection action and the transformer substation switch remote signalling displacement condition when faults are generated, employs the binary group table method to calculate and assess the matching of a protection action behavior and the change of the switching state in the transformer substation during generation of faults, and screens results accordingto the priority of the protection action to rapidly determine action protection and fault devices so as to effectively reduce the dependence one other data sources and improve the emergency disposal ability and determination accuracy in a complex fault condition.
Description
technical field [0001] The invention belongs to the technical field of power grid automation, in particular to a method for judging complex protection actions of a 220kV power grid based on SCADA steady-state information. Background technique [0002] When a fault occurs in the power grid, dispatching and operating personnel need to grasp the action information of primary and secondary equipment at the first time, analyze and judge the cause of the fault in a timely and accurate manner, and then take relevant measures to isolate the fault and restore power supply as soon as possible. At present, when dispatching and operating personnel analyze and judge, on the one hand, they must come from various data sources or auxiliary systems, such as grasping switch displacement information through SCADA remote signaling, locating tripping equipment through comprehensive intelligent alarm applications, and grasping through the protection action quick judgment system The specific infor...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/22H02H7/28
Inventor 史磊王海林郭凌旭王刚陈玉涛郝达智宋永贞张杰陈建路树森
Owner STATE GRID TIANJIN ELECTRIC POWER