CN210156746U

CN210156746U - Electric energy quality integrated control device

Info

Publication number: CN210156746U
Application number: CN201921133771.2U
Authority: CN
Inventors: 王东垒; 江经委; 刘新伟; 刘阳锋
Original assignee: Hangzhou Rongke Electrical Equipment Co Ltd
Current assignee: Hangzhou Rongke Electrical Equipment Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-03-17
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses an electric energy quality integrated control device, including rack and intelligent control unit, the quick-witted door is installed to rack the place ahead downside, and the upper left side of quick-witted door is provided with the handle, the bottom of rack is fixed with the base, the intelligent control unit is installed in the place ahead upside of rack, and the inside mounting groove that is provided with in below of rack, the internally mounted of mounting groove has SVG static type dynamic reactive power generating device and TSC silicon controlled rectifier dynamic reactive power compensation device, and TSC silicon controlled rectifier dynamic reactive power compensation device is located SVG static type dynamic reactive power generating device's downside. The comprehensive control device for the power quality mainly comprises an SVG static dynamic reactive power generation device, a TSC silicon controlled dynamic reactive power compensation device and an intelligent power quality comprehensive controller, can break through the traditional reactive power compensation technology through an optimized intelligent control strategy, and can optimize and solve the problems of harmonic waves and reactive power compensation in a system while effectively reducing the cost.

Description

Electric energy quality integrated control device

Technical Field

The utility model relates to an electric energy quality integrated control technical field specifically is an electric energy quality integrated control device.

Background

The power quality is directly related to the power supply safety and the power supply quality of a power system, and harmonic suppression and reactive power compensation are important subjects related to the fields of power electronic technology, the power system, automatic control technology, theoretical electrician and the like. The current and voltage are important indexes for measuring the quality of electric energy, and ensuring that the voltage at a user is close to a rated value is one of basic tasks of operation adjustment of a power system. In order to realize the comprehensive control of the power quality, a power quality comprehensive control device is needed.

The existing electric energy quality comprehensive control device is poor in ventilation and heat dissipation effects, inconvenient to open, close and disassemble to overhaul the inside of a cabinet, and insufficient in the aspects of reactive compensation, harmonic filtering, voltage drop inhibition, three-phase imbalance inhibition and the like, so that the electric energy quality comprehensive control device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric energy quality integrated control device to it is relatively poor to solve the general ventilation cooling effect of the current electric energy quality integrated control device that provides in the above-mentioned background art, and be not convenient for open and shut the dismantlement and carry out the inside maintenance of rack, moreover in reactive compensation and harmonic filtering, voltage fall the suppression, three-phase unbalance restrain the aspect not enough problem of utility.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electric energy quality integrated control device, includes rack and intelligent control unit, the quick-witted door is installed to rack the place ahead downside, and the upper left side of quick-witted door is provided with the handle, the bottom of rack is fixed with the base, intelligent control unit installs in the place ahead upside of rack, and the below of rack is inside to be provided with the mounting groove, the internally mounted of mounting groove has SVG static type dynamic reactive power generating device and TSC silicon controlled rectifier dynamic reactive power compensation device, and TSC silicon controlled rectifier dynamic reactive power compensation device is located SVG static type dynamic reactive power generating device's downside, first radiating groove has been seted up to the rear upside of rack, and the rear shell plate is installed to the rear downside of rack, the second radiating groove has been seted up at the middle part of rear shell plate, and the four corners department of rear shell plate is fixed with.

Preferably, the machine door and the machine cabinet are movably connected through hinges, and the outer side of the machine door is of a hollow mesh structure.

Preferably, the symmetry center of the control display screen coincides with the symmetry center of the cabinet, and the control display screen is embedded in the cabinet.

Preferably, the intelligent control unit comprises a control display screen, a control operation button, a case and an intelligent electric energy quality comprehensive controller, the control display screen is installed above the cabinet, the control operation button is arranged on the lower side of the control display screen, the case is installed inside the cabinet, and the intelligent electric energy quality comprehensive controller is arranged inside the case.

Preferably, the first heat dissipation groove is of a long strip-shaped hollow structure, and the symmetry center of the first heat dissipation groove coincides with the symmetry center of the cabinet.

Preferably, the rear shell plate forms a detachable structure with the cabinet through bolts, and second heat dissipation grooves are distributed in the middle of the rear shell plate at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the electric energy quality comprehensive control device mainly comprises an SVG static dynamic reactive power generation device, a TSC silicon controlled dynamic reactive power compensation device and an intelligent electric energy quality comprehensive controller, can break through the traditional reactive power compensation technology through an optimized intelligent control strategy, combines the economical efficiency of capacitor reactive power compensation and the flexibility of the function application of electric energy quality comprehensive control, effectively reduces the cost, and simultaneously optimally solves the problems of harmonic wave and reactive power compensation in the system;

the control display screen is convenient for current and voltage observation in the process of comprehensive control of the electric energy quality, and by the matched use of the SVG static dynamic reactive power generation device, the TSC silicon controlled dynamic reactive power compensation device and the intelligent electric energy quality comprehensive controller, the purposes of reactive power compensation and harmonic filtering, voltage drop inhibition, three-phase unbalance inhibition and comprehensive compensation can be realized, and the purposes of electric energy quality control and application cost reduction are realized in a comprehensive compensation mode;

the setting of first radiating groove is convenient for dispel the heat to intelligent electric energy quality comprehensive control ware, and the fretwork dress structure of quick-witted door sets up the ventilation cooling of the rack inner device of being convenient for to can also realize the dismouting of back coverboard through the bolt, so that overhaul the inside rear side position of mounting groove, the second radiating groove can be equally to the rack inner device ventilation cooling simultaneously, makes rack heat dispersion good.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic view of the rear view structure of the present invention.

In the figure: 1. a cabinet; 2. a machine door; 3. a handle; 4. a base; 5. an intelligent control unit; 6. controlling the display screen; 7. controlling an operation button; 8. a chassis; 9. an intelligent electric energy quality comprehensive controller; 10. mounting grooves; 11. the SVG static dynamic reactive power generation device; 12. TSC silicon controlled dynamic reactive power compensation device; 13. a first heat sink; 14. a rear shell plate; 15. a second heat sink; 16. and (4) bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an electric energy quality comprehensive control device comprises a cabinet 1, a machine door 2, a handle 3, a base 4, an intelligent control unit 5, a control display screen 6, a control operation button 7, a case 8, an intelligent electric energy quality comprehensive controller 9, a mounting groove 10, an SVG static dynamic reactive power generation device 11, a TSC silicon controlled rectifier dynamic reactive power compensation device 12, a first radiating groove 13, a rear shell plate 14, a second radiating groove 15 and a bolt 16, wherein the machine door 2 is mounted on the lower side in front of the cabinet 1, the handle 3 is arranged on the upper left side of the machine door 2, the machine door 2 is movably connected with the cabinet 1 through a hinge, the outer side of the machine door 2 is in a hollowed-out mesh structure, and the hollowed-out structure of the machine door 2 is convenient for ventilation and heat dissipation of internal devices;

a base 4 is fixed at the bottom of the cabinet 1, an intelligent control unit 5 is installed at the upper side in front of the cabinet 1, an installation groove 10 is formed in the lower portion of the cabinet 1, the intelligent control unit 5 comprises a control display screen 6, a control operation button 7, a cabinet 8 and an intelligent electric energy quality integrated controller 9, the control display screen 6 is installed at the upper middle of the cabinet 1, the control operation button 7 is arranged at the lower side of the control display screen 6, the cabinet 8 is installed at the upper portion of the cabinet 1, the intelligent electric energy quality integrated controller 9 is arranged in the cabinet 8, the symmetry center of the control display screen 6 is overlapped with the symmetry center of the cabinet 1, the control display screen 6 is embedded in the cabinet 1, and the control display screen 6 is convenient to observe current and voltage in the electric energy quality integrated control process;

an SVG static dynamic reactive power generation device 11 and a TSC silicon controlled dynamic reactive power compensation device 12 are arranged in the mounting groove 10, the TSC silicon controlled dynamic reactive power compensation device 12 is positioned at the lower side of the SVG static dynamic reactive power generation device 11, a first heat dissipation groove 13 is arranged at the upper side of the rear part of the cabinet 1, a rear shell plate 14 is arranged at the lower side of the rear part of the cabinet 1, the first heat dissipation groove 13 is in a strip-shaped hollow structure, the symmetry center of the first heat dissipation groove 13 is superposed with the symmetry center of the cabinet 1, the arrangement of the first heat dissipation groove 13 is convenient for dissipating heat of the intelligent electric energy quality integrated controller 9, a second heat dissipation groove 15 is arranged at the middle part of the rear shell plate 14, bolts 16 are fixed at the four corners of the rear shell plate 14, the rear shell plate 14 forms a detachable structure with the cabinet 1 through the bolts 16, the second heat dissipation grooves 15 are equidistantly distributed at the middle part of the rear shell plate 14, and convenient assembly and disassembly, thereby facilitating the maintenance of the rear side part inside the mounting groove 10.

The working principle is as follows: when the electric energy quality comprehensive control device is used, the door 2 can be opened through the handle 3 to check the operation and use conditions of the SVG static dynamic reactive power generation device 11 and the TSC silicon controlled dynamic reactive power compensation device 12 in the installation groove 10, the door 2 with the hollowed-out installation structure on the outer side is convenient for ventilation and heat dissipation of devices in the cabinet 1 in the use process, the rear shell plate 14 can be disassembled and assembled through the bolt 16 so as to be convenient for overhauling the rear side part in the installation groove 10, meanwhile, the second heat dissipation groove 15 can also be used for ventilation and heat dissipation of devices in the cabinet 1, and the heat dissipation performance is good;

when the device works, the current and voltage in the electric energy quality comprehensive control process can be conveniently observed by controlling the display screen 6, by using the SVG static dynamic reactive power generation device 11, the TSC silicon controlled dynamic reactive power compensation device 12 and the intelligent electric energy quality comprehensive controller 9 in a matching way, reactive components and harmonic components can be extracted by utilizing theories of instantaneous reactive power, FFT (fast Fourier transform algorithm) and the like and can be used as reference values, and reactive and harmonic currents which are opposite in phase and equal in size to the reference currents are generated on the output side of the device, so that only fundamental wave active current is left in the current on the system side, and the purposes of reactive power compensation and harmonic filtering are achieved;

harmonic current and reactive current can be tracked in real time, large-capacity direct-current side bus capacitance in the cabinet 1 can rapidly provide large current for compensation, impact of the large current is reduced, system voltage is stabilized, reactive compensation and harmonic suppression can be controlled in a split-phase mode, negative-sequence fundamental current is compensated (a three-phase four-wire system can also compensate zero-sequence current), further three-phase current of a power grid is balanced, internal harmonic voltage drop of a power grid transformer is reduced, and the purpose of three-phase voltage balance is achieved;

on the working condition occasions with large reactive power demand and high change speed, the comprehensive control device for the power quality is matched with a TTSC (thyristor switched capacitor bank) module arranged in the cabinet 1 to realize the comprehensive compensation function under the coordination control of the intelligent control unit 5, the TTSC module meets the basic reactive power demand with large capacity, the device realizes the quick response treatment of impact reactive power and harmonic compensation, and the purposes of realizing the power quality treatment and reducing the application cost in a comprehensive compensation mode are achieved, so that the using process of the whole comprehensive control device for the power quality is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an electric energy quality integrated control device, includes rack (1) and intelligent control unit (5), its characterized in that: a machine door (2) is arranged at the lower side in front of the machine cabinet (1), a handle (3) is arranged at the upper left side of the machine door (2), a base (4) is fixed at the bottom of the cabinet (1), the intelligent control unit (5) is arranged at the upper side in front of the cabinet (1), and a mounting groove (10) is arranged inside the lower part of the cabinet (1), an SVG static dynamic reactive power generating device (11) and a TSC silicon controlled dynamic reactive power compensating device (12) are arranged inside the mounting groove (10), and the TSC silicon controlled dynamic reactive power compensation device (12) is positioned at the lower side of the SVG static dynamic reactive power generation device (11), a first heat dissipation groove (13) is arranged at the upper side of the rear part of the cabinet (1), and a rear shell plate (14) is installed on the lower side of the rear part of the cabinet (1), a second heat dissipation groove (15) is formed in the middle of the rear shell plate (14), and bolts (16) are fixed at the four corners of the rear shell plate (14).

2. The integrated control device of electric energy quality as claimed in claim 1, characterized in that: the machine door (2) and the machine cabinet (1) are movably connected through hinges, and the outer side of the machine door (2) is of a hollow mesh structure.

3. The integrated control device of electric energy quality as claimed in claim 1, characterized in that: the intelligent control unit (5) is including control display screen (6), control operation button (7), quick-witted case (8) and intelligent electric energy quality integrated control ware (9), install in the well top of rack (1) control display screen (6), and the downside of controlling display screen (6) is provided with control operation button (7), the top internally mounted of rack (1) has quick-witted case (8), and the inside of machine case (8) is provided with intelligent electric energy quality integrated control ware (9).

4. The integrated control device of electric energy quality as claimed in claim 3, characterized in that: the symmetry center of the control display screen (6) coincides with the symmetry center of the cabinet (1), and the control display screen (6) is embedded in the cabinet (1).

5. The integrated control device of electric energy quality as claimed in claim 1, characterized in that: the first radiating grooves (13) are of elongated hollow structures, and the symmetric centers of the first radiating grooves (13) are overlapped with the symmetric center of the cabinet (1).

6. The integrated control device of electric energy quality as claimed in claim 1, characterized in that: the rear shell plate (14) forms a detachable structure with the cabinet (1) through bolts (16), and second heat dissipation grooves (15) are distributed in the middle of the rear shell plate (14) at equal intervals.