Driving control system of intelligent isolation switch of micro power grid

A technology of isolating switch and drive control, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of reducing equipment efficiency and reliability, increasing operating expenses, power loss of semiconductor devices, etc., to ensure accuracy and speed, Improve the real-time control ability and ensure the effect of normal operation

Inactive Publication Date: 2014-12-31
STATE GRID CORP OF CHINA +2
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In microgrids, power quality problems for critical and sensitive loads will become clearly visible through static switching, however, one of the main problems of static switching is the power loss of solid-state semiconductor devices
In static switching, due to the continuous line current, this will cause power dissipation and heat loss of the components during normal operation, thus requiring a larger cooling device, which adds additional operating expenses to Controlling the temperature of the SCR will also reduce the efficiency and reliability of the device

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
  • Driving control system of intelligent isolation switch of micro power grid
  • Driving control system of intelligent isolation switch of micro power grid
  • Driving control system of intelligent isolation switch of micro power grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-4 As shown, the invention of this example is a micro-grid intelligent isolating switch drive control system. The system mainly uses a static switch to isolate the main grid and the micro-grid, and connects the main grid and the micro-grid at an appropriate time; the system includes Main circuit; the main circuit includes a static switch arranged between the microgrid and the main grid, a lower-level controller for controlling the switch, an upper-level controller for controlling the lower-level controller, and the detected The voltage and current information between the microgrid and the main grid is transmitted to the analog signal acquisition board of the upper-level controller. The analog signal acquisition board includes an analog-to-digital converter.

[0032] A current transformer 1, a circuit breaker 1 and a voltage transformer 1 are sequentially provided between the static switch and the microgrid side; the current transformer 1 is connected t...

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 driving control system of an intelligent isolation switch of a micro power grid. The system comprises a main circuit, wherein the main circuit comprises a static switch, a lower-level controller, an upper-level controller and a simulation signal collecting board, wherein the static switch is arranged between the micro power grid and a main power grid, the lower-level controller is used for controlling the switch, the upper-level controller is used for controlling the lower-level controller, and the simulation signal collection board is used for sending the detected voltage and current signal between the micro power grid and the main power grid to the upper-level controller. The control process of the system comprises the following steps of pre-closing, judging whether a bidirectional silicon controlled rectifier is good or not, and triggering a thyristor. The system can guarantee the accuracy and high speed of opening and closing of the switch.

Description

Technical field: [0001] The invention relates to a drive control system for an isolating switch, and more particularly to a drive control system for an intelligent isolating switch in a microgrid. Background technique: [0002] In the power system, micro-grid technology refers to the integration of decentralized power generation resources (such as self-powered power generation equipment or backup generator sets, solar power generation devices, wind power generation equipment and other renewable energy sources) in a certain area or in some enterprises and institutions. Power generation devices) are connected together to supply power to users, and run in parallel with the main large-scale power grid through the distribution network to form a system of joint operation of large-scale power grids and small-scale power generation equipment. In a sense, when the distributed power reaches a certain proportion, it can be called a micro grid. [0003] An important part of the microgr...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38
Inventor 李晓强李武峰严辉郭萍卞秀婷苑卫娜丁晓赟
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap