Series compensation device

A series compensation, series access technology, applied in reactive power compensation, circuit devices, reactive power adjustment/elimination/compensation and other directions, can solve the cost, land occupation and equipment loss limit the application of series compensation device, increase investment cost and The problems such as the increase of floor space and overall loss can improve the economy and reliability, save equipment cost and floor space, and improve the operation efficiency.

Inactive Publication Date: 2016-11-23
NR ELECTRIC CO LTD +1
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most cases, the total operating current of the double-circuit lines is far less than the sum of the current ratings of the double-circuit lines. The above scheme causes a serious waste of capacity during normal operation, which will inevitably...

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
  • Series compensation device
  • Series compensation device
  • Series compensation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] The invention provides a series compensation device, which includes at least two voltage source converters, at least two three-phase transformers, and at least one three-phase reactor; the AC sides of the at least two voltage source converters pass through the The at least one three-phase reactor is interconnected; the windings on one side of the at least two three-phase transformers are connected to the above-mentioned interconnection branch, and the windings on the other side are respectively connected in series to each circuit.

[0024] Such as figure 1 As shown, it is a schematic diagram of a wiring structure applied to a double-circuit line according to the present invention, including two three-phase transformers and two voltage source converters and one three-phase reactor. The three-phase transformer is directly connected to th...

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 discloses a series compensation device. The device comprises at least two voltage source current converters, at least two three-phase transformers, and at least one three-phase electric reactor; the voltage source current converters are connected to a multi-loop line in series through the three-phase transformers, and the AC sides of the voltage source current converters are connected with one another through the three-phase electric reactors, thereby realizing the function of equally dividing system flow by the plurality of current converters. The device scheme provided by the application can be independently installed in a power transmission system to be used as a static synchronous series compensator, and can also be used as a component of a unified flow controller, a convertible static compensator, an inter-line flow controller and a unified power quality regulator to be connected to a power transmission system device in series. The device is capable of saving the capacity of the current converters, the application efficiency of the series compensation device is improved, and the cost and the floor area are reduced.

Description

technical field [0001] The invention relates to the field of flexible alternating current transmission, in particular to a series compensation device. Background technique [0002] The equipment of flexible AC transmission system (FACTS) can be divided into series compensation device, parallel compensation device and comprehensive control device. Among them, the parallel compensation device can be directly connected to various levels of power grids, and the series compensation device and the comprehensive control device need to be connected to the power grid in series at one end, so the reliability, flexibility and safety of the device need to be integrated to study its connection mode. [0003] Among series compensation devices and integrated control devices, Static Synchronous Series Compensator (SSSC), Unified Power Flow Controller (UPFC), Interline Power Flow Controller (IPFC) and Switchable Static Compensator (CSC) can all improve the power transmission capacity of the ...

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): H02J3/18
CPCH02J3/1807Y02E40/30H02J3/18
Inventor 黄如海卢宇董云龙潘磊邱德峰姜崇学鲁江李钢胡兆庆汪楠楠丁久东王柯胡仙来王辉随顺科
Owner NR ELECTRIC CO LTD
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