Hybrid compensation filter cabinet

A hybrid compensation and filter cabinet technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, harmonic reduction devices, etc., can solve the problem of increased voltage and current distortion rates, equipment damage, and unusable compensation devices, etc. problems, to achieve the effect of eliminating harmonics, stable work, and ensuring load safety

Pending Publication Date: 2018-09-18
苏州中康电力开发有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The capacitor bank and the line resonate in series, which increases the voltage and current distortion rate on the line, which is very likely to cause equipment damage. In this case, the compensation device cannot be used.

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
  • Hybrid compensation filter cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0013] Such as figure 1 As shown, the hybrid compensation filter cabinet includes: a cabinet body, a dynamic filter reactive power compensation device and a static filter reactive power compensation device are arranged in the cabinet, the dynamic filter reactive power compensation device and the static filter reactive power compensation device The compensation devices all include a controller, a switching switch, a compensation capacitor bank, a fuse and a circuit breaker, and are characterized in that: the external three-phase power grid is connected with the dynamic filter reactive power compensation device and the static filter reactive power compensation device respectively A current transformer and a voltage transformer are also arranged between the controllers, and the active filter capacitor banks of...

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 hybrid compensation filter cabinet in the field of reactive power compensation equipment of the power system. The hybrid compensation filter cabinet comprises a cabinet body.A dynamic filter reactive power compensation device and a static filter reactive power compensation device are arranged in the cabinet body; and each of the dynamic filter reactive power compensationdevice and the static filter reactive power compensation device consists of a controller, a change-over switch, a compensation capacitor bank, a fuse and a circuit breaker; and a current transformerand a voltage transformer are arranged between an external three-phase power grid and controllers of the dynamic filter reactive power compensation device and the static filter reactive power compensation device. Active power filters and the filter reactors are connected in series to the compensation capacitor banks of the dynamic filter reactive power compensation device and the static filter reactive power compensation device in sequence. Besides, a CPU processing module is arranged in the controller and includes a clock circuit and an energy storage module. The dynamic filter reactive powercompensation device and the static filter reactive power compensation device are connected in parallel with the external three-phase power grid. Therefore, harmonics in the power grid can be eliminated effectively; and the quality of the power grid is improved.

Description

technical field [0001] The invention relates to the field of reactive power compensation equipment in electric power systems, in particular to a hybrid compensation filter cabinet. Background technique [0002] Most of the load types in the power system are inductive loads, coupled with the widespread use of power electronic equipment by power companies, the power factor of the grid is low. Low power factor reduces equipment utilization, increases power supply investment, damages voltage quality, reduces equipment service life, and greatly increases line loss. In order to improve the energy waste caused by the low power factor of the grid and these unfavorable factors for power supply production, the power factor of the grid must be effectively improved. Obviously, it is unreasonable and usually impossible to provide all these reactive powers by generators and transmit them over long distances. A reasonable way is to generate reactive power where reactive power is needed, ...

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): H02J3/18H02J3/01
CPCH02J3/01H02J3/1842H02J3/1864Y02E40/30Y02E40/40
Inventor 王永东王晓亮郑春阳
Owner 苏州中康电力开发有限公司
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