Unlock instant, AI-driven research and patent intelligence for your innovation.

Circuit with symmetrical component method calculation function

A technology of symmetrical component method and calculation function, which is applied in the direction of measuring electrical variables, measuring current/voltage, measuring devices, etc., and can solve problems affecting understanding and application, simulation of symmetrical component method, and complex processing circuits.

Inactive Publication Date: 2015-05-27
FUJIAN AGRI & FORESTRY UNIV
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing circuits and devices are more complicated to simulate and process the symmetrical component method, which affects beginners' understanding and application of this method

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Circuit with symmetrical component method calculation function
  • Circuit with symmetrical component method calculation function
  • Circuit with symmetrical component method calculation function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Such as figure 1 , figure 2 , image 3 , The present invention provides a circuit with the calculation function of the symmetrical component method, including: a three-phase transformer, a leading 60-degree angle circuit, a lagging 60-degree angle circuit, an addition and proportional setting circuit, and an output phase-shifting circuit. It is characterized in that phase b and phase c of the secondary side of the three-phase transformer are connected with a 60-degree lead circuit and a 60-degree lag circuit, through addition and proportional setting circuits, and then through two single-phase transformers, a 60-degree lead circuit and a 60-degree lag circuit The circuit combination can output a set of positive sequence component voltage, reverse sequence component voltage and zero sequence component voltage.

[0008] exist image 3 Among them, the three-phase four-wire voltage is added to the original side of the three-phase transformer, and the terminal of the pay...

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

No PUM Login to View More

Abstract

The invention relates to a circuit with a symmetrical component method calculation function. The circuit is characterized in that three-phase four-wire input voltage is subjected to isolation and phase shift by virtue of a three-phase transformer, and a group of positive sequence voltage, a group of reverse sequence voltage and zero sequence voltage can be output at the output phase shift circuit port by virtue of addition and proportion setting circuit processing due to correction of a leading 60-degree angle circuit and a lagging 60-degree angle circuit. The symmetrical component method calculation function is completely realized. The circuit is simple and clear in thinking, the analogue function is powerful, the used devices in the device are fewer, the wiring is simple, the maintenance is convenient, and the circuit can serve as an experimental device for students in the electrical laboratory of colleges and universities and also can be applied to a power system related test setting device.

Description

technical field [0001] The invention relates to a circuit and a device capable of realizing the calculation function of the symmetrical component method, which are suitable for the electrician laboratory of a university as a student experiment device, and also suitable for the application of a power system related test setting device. Background technique [0002] The symmetrical component method is a better method for dealing with three-phase asymmetrical circuits for effective calculation. Existing circuits and devices are relatively complex for simulating and processing circuits of the symmetrical component method, which affects beginners' understanding and application of this method. Contents of the invention [0003] In view of the above-mentioned deficiencies, the present invention relates to a circuit with the calculation function of the weighing method, which isolates and phase-shifts the three-phase four-wire input voltage through a three-phase transformer, correc...

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
no application Login to View More
IPC IPC(8): G01R19/00
Inventor 王琳基王研兆李燕平
Owner FUJIAN AGRI & FORESTRY UNIV