Method for improving calculation speed of power system state estimation
A state estimation and calculation speed technology, which is applied in the field of improving the calculation speed of power system state estimation, can solve the problems that the calculation efficiency is difficult to meet real-time calculation and analysis, and achieve the effect of improving the overall calculation speed, avoiding the calculation of zero elements, and reducing the amount of calculation
Active Publication Date: 2018-01-12
NARI TECH CO LTD +3
View PDF2 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] With the construction of dispatching systems and model data centers of the intelligent dispatching technical support system (D5000) at all levels in the country and provinces and the development of the scale of the power grid, the calculation scale of the state estimation of the power system is increasing. At present, the actual production and operation in the intelligent dispatching technical support system State estimation, especially the state estimation of model data center operation, its modeling range is from UHV 1000kV to 10kV feeder outlets, the calculation scale of state estimation is very large, making its calculation efficiency difficult to meet the needs of real-time calculation and analysis
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
[0036] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the present invention, but cannot limit the protection scope of the present invention with this.
[0037] Such as figure 1 As shown, a method for improving the calculation speed of power system state estimation includes the following steps:
[0038] Step 1. Convert the relational grid model in the dispatch control system into a hierarchical grid model and store it in the hierarchical database.
[0039] Because the grid structure of the power system has a hierarchical relationship, in order to facilitate the analysis and calculation, the analysis and calculation method based on the hierarchical database is used in the state estimation calculation. First, the relational grid model in the regulation and control system is converted into a hierarchical grid model. And store the power ...
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 discloses a method for improving the calculation speed of power system state estimation, which uses a multithreading parallel algorithm by an OpenMP-based shared memory programming method to achieve rapid calculation of a real and reactive Jacobian matrix and an information matrix, reduces the amount of calculation through zero-forcing operation by using sparse technology in a matrixmultiplication process, and accelerates the decomposition of the information matrix based on non-zero metasymbol analysis and numerical decomposition in a factorization process so as to improve the overall calculation speed of large-scale power system state estimation.
Description
technical field [0001] The invention relates to a method for improving the calculation speed of power system state estimation, which belongs to the technical field of electric power automation. Background technique [0002] With the construction of dispatching systems and model data centers of the intelligent dispatching technical support system (D5000) at all levels in the country and provinces and the development of the scale of the power grid, the calculation scale of the state estimation of the power system is increasing. At present, the actual production and operation in the intelligent dispatching technical support system State estimation, especially the state estimation of model data center operation, has a modeling range from UHV 1000kV to 10kV feeder outlets. The calculation scale of state estimation is very large, making its calculation efficiency difficult to meet the needs of real-time calculation and analysis. Therefore, improving the computational efficiency of...
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 Applications(China)
IPC IPC(8): H02J3/00
Inventor 罗玉春闪鑫邹德虎王毅陆娟娟习新魁彭龙王亚军马斌
Owner NARI TECH CO LTD