CN208299717U - A kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running - Google Patents
A kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running Download PDFInfo
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- CN208299717U CN208299717U CN201820914672.7U CN201820914672U CN208299717U CN 208299717 U CN208299717 U CN 208299717U CN 201820914672 U CN201820914672 U CN 201820914672U CN 208299717 U CN208299717 U CN 208299717U
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- frequency converter
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Abstract
The utility model discloses a kind of constant frequency and constant voltage cabinets of achievable motor four quadrant running, including shield, touch screen, cabinet body, frequency converter, breaker, connecting terminal, sinusoidal filter, field power supply module, zero curve power module；It is shield on cabinet body, touch screen is set in the cabinet door of the positive front side of cabinet body, mounting knob in the cabinet door of positive front side, cabinet body inside frequency converter lower section are breaker, are connecting terminal below breaker, it is sinusoidal filter on the inside of connecting terminal, sinusoidal filter connects the output end of frequency converter, and field power supply module is powered by connecting terminal to generator exciter, makes generator normal power generation, frequency converter is also connected with zero curve power module, and zero curve power module makes the output three-phase four-wire system of constant frequency and constant voltage cabinet.What the utility model exported always is the three-phase alternating current of constant frequency constant voltage, can greatly shorten the runing time of marine auxiliary, and consumption of lubricating oil is reduced, and abrasion is reduced, and the expenses such as operation, maintenance are minimized.
Description
Technical field
The present invention relates to a kind of constant frequency and constant voltage cabinet more particularly to a kind of constant frequency and constant voltages of achievable motor four quadrant running
Cabinet.
Background technique
As " 13 " Plan is put into effect, green ship is due to characteristics such as its energy-saving and environmental protection, it has also become mainstream ship
Oceangoing ship.In response to national energy-saving environmental protection policy, using sophisticated equipment and technology, the speed change provided using ship's main diesel engine is unstable
Determined power, the three-phase alternating current for exporting constant voltage constant frequency are used for the load on ship, are greatly improved the main bavin of ship
The efficiency of oil machine.
But since axle generator peculiar to vessel is driven by ship's main diesel engine, as the variation of main diesel engine operating condition, revolving speed become
Change, the frequency and voltage of axle generator change therewith, when other loads need the three-phase alternating current of constant frequency and constant voltage
When electric, common axle generator be just unable to satisfy requirement,
In order to solve this problem, constant frequency and constant voltage cabinet matched with axle generator can be very good to solve this problem,
In main diesel engine operating condition and rotation speed change, constant frequency and constant voltage cabinet can guarantee the different frequency different voltages of axle generator output
Alternating current by the way that after it, what is exported always is the three-phase alternating current of constant frequency constant voltage, and it is auxiliary can to greatly shorten ship
The runing time of machine, consumption of lubricating oil are reduced, and abrasion is reduced, and the expenses such as operation, maintenance are minimized.
Summary of the invention
The purpose of the present invention is to provide a kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running, constant frequency and constant voltage cabinet energy
Guarantee the alternating current of the different frequency different voltages of axle generator output by the way that after it, what is exported always is that constant frequency is constant
The three-phase alternating current of voltage can greatly shorten the runing time of marine auxiliary, and consumption of lubricating oil is reduced, and abrasion is reduced, fortune
The expenses such as row, maintenance are minimized.
For achieving the above object, The technical solution adopted by the invention is as follows: a kind of achievable motor four quadrant running
Constant frequency and constant voltage cabinet, including shield, touch screen, cabinet body, frequency converter, breaker, connecting terminal, sinusoidal filter, excitation electricity
Source module, zero curve power module；It is shield on cabinet body, touch screen is set in the cabinet door of the positive front side of cabinet body, in the cabinet door of positive front side
Door lock is installed, is breaker below frequency converter on the inside of cabinet body, breaker lower section is connecting terminal, is filtered on the inside of connecting terminal to be sinusoidal
Wave device, sinusoidal filter connect the output end of frequency converter, and field power supply module is powered by connecting terminal to generator exciter,
Make generator normal power generation, frequency converter is also connected with zero curve power module, and zero curve power module makes the output three of constant frequency and constant voltage cabinet
Phase four-wire system.
Frequency converter is mainly made of IGBT rectifying part, IGBT Converting Unit and commutation inversion control loop part.Due to
What its commutation inversion circuit used is all wholly-controled device IGBT device, therefore its commutation inversion is the process of bidirectional reversible, can
To meet the operating statuses such as motor powered, regenerative braking, the four quadrant running of motor is realized.What frequency converter can export generator
Voltage and frequency with rotation speed change three-phase alternating current commutation inversion at constant voltage constant frequency three-phase alternating current.
Sinusoidal filter is mainly made of inductance and capacitor.Since the electric energy of frequency converter output contains high-frequency harmonic, can increase
Add the loss of power cable and motor.Therefore sinusoidal filter need to be installed additional in the outlet side of frequency converter, by frequency converter output
The filter of SPWM modulating wave makes power quality meet standard requirements at close to sinusoidal voltage waveform.
Field power supply module provides exciting current to generator and controls the size of generator output voltage.
Zero curve power module makes the output of constant frequency cabinet be three-phase four-wire system, makes it have the ability with three-phase imbalance load.
Use principle: after the host tape on ship moves axle generator starting, first by 24V battery pack to field power supply mould
Block power supply, field power supply module power to exciter, and generator is made to establish voltage；The voltage of generator output enters four-quadrant change
Frequency device, after being rectified into DC bus-bar voltage and rising to setting value, field power supply module by relay make its power supply state by
Battery power switching is DC bus-bar voltage power supply.Bus DC voltage another mistake is become constant frequency constant voltage by frequency converter
It is exported after three-phase alternating current, which supplies after being converted into pure three-phase alternating current by sinusoidal filter directly to load
Electricity.
The advantages of the utility model patent is: the constant frequency and constant voltage cabinet can become the voltage and frequency that generator exports with revolving speed
The three-phase alternating current of change is converted into the three-phase alternating current electricity output of constant frequency constant voltage, directly to the illumination on ship, air-conditioning
Etc. electrical equipments load supplying.It can provide field power supply to generator and control the size of generator output voltage simultaneously, and
And there are also the abilities with unbalanced load, moreover it is possible to realize the four quadrant running of motor.The utility model circuit modular is convenient for control
System and maintenance, structure is simple, versatile.
Detailed description of the invention
Fig. 1 is the structure chart of constant frequency and constant voltage cabinet.
Fig. 2 is the structural schematic diagram inside Fig. 1.
Fig. 3 is the electrical schematic diagram of constant frequency and constant voltage cabinet
In figure: 1, shield, 2, touch screen, 3, cabinet body, 4, frequency converter, 5, breaker, 6, connecting terminal, 7, sinusoidal filter
Wave device, 8, field power supply module, 9, zero curve power module.
Specific embodiment
The preferred embodiment of the utility model is described in detail in 1-3 with reference to the accompanying drawing, so that the utility model
Advantages and features can be easier to be readily appreciated by one skilled in the art, to make to the protection scope of the utility model apparent
Explicitly define.
In the present embodiment, it is to be understood that the orientation or position of the instructions such as term " centre ", " front side ", " top "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this hair
Bright limitation.
It is shown such as Fig. 1,2,3, the present invention is implemented as follows: a kind of constant frequency and constant voltage of achievable motor four quadrant running
Cabinet, including shield (1), touch screen (2), cabinet body (3), frequency converter (4), breaker (5), connecting terminal (6), sinusoidal filter
(7), field power supply module (8), zero curve power module (9)；It is shield (1) cabinet door of the positive front side of cabinet body (3) on cabinet body (3)
On set touch screen (2), door lock is installed in the cabinet door of positive front side, is below the frequency converter (4) on the inside of cabinet body (3) breaker (5), is broken
Being below road device (5) connecting terminal (6) is sinusoidal filter (7) that sinusoidal filter (7) connects frequency conversion on the inside of connecting terminal (6)
The output end of device (4), field power supply module (8) are powered by connecting terminal (6) to generator exciter, send out generator normally
Electricity, frequency converter (4) are also connected with the zero curve power module (9) of side setting.
The alternating current of generator output enters constant frequency and constant voltage cabinet by connecting terminal (6), and breaker (5) controls its input
On-off, electric current export after entering frequency converter (4) commutation inversion, enter back into after sinusoidal filter (7) is converted into pure sine wave
Powering load is exported by breaker (5).Field power supply module (8) is powered by connecting terminal (6) to generator exciter,
Make generator normal power generation.Zero curve power module (9) makes the output of constant frequency and constant voltage cabinet be three-phase four-wire system, has band unbalanced load
Ability.
Not limited to this, any change or replacement expected without creative work should all be covered in the utility model
Protection scope within.Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running, which is characterized in that including shield (1), touch screen
(2), cabinet body (3), frequency converter (4), breaker (5), connecting terminal (6), sinusoidal filter (7), field power supply module (8), zero
Line power module (9)；It is shield (1) to set touch screen (2) in the cabinet door of the positive front side of cabinet body (3) on cabinet body (3), positive front side
Door lock is installed in cabinet door, is below the frequency converter (4) on the inside of cabinet body (3) breaker (5), is connecting terminal below breaker (5)
It (6), is sinusoidal filter (7) that sinusoidal filter (7) connects the output end of frequency converter (4), excitation electricity on the inside of connecting terminal (6)
Source module (8) is powered by connecting terminal (6) to generator exciter, makes generator normal power generation, frequency converter (4) is also connected with side
The zero curve power module (9) of side setting.
2. the constant frequency and constant voltage cabinet of achievable motor four quadrant running according to claim 1, which is characterized in that frequency converter master
It to be made of IGBT rectifying part, IGBT Converting Unit and commutation inversion control loop part, the commutation inversion circuit uses
Be wholly-controled device IGBT device.
3. the constant frequency and constant voltage cabinet of achievable motor four quadrant running according to claim 1, which is characterized in that sine filtering
Device is mainly made of inductance and capacitor.
4. the constant frequency and constant voltage cabinet of achievable motor four quadrant running according to claim 1, which is characterized in that zero curve power supply
Module makes the output of constant frequency cabinet be three-phase four-wire system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820914672.7U CN208299717U (en) | 2018-06-13 | 2018-06-13 | A kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820914672.7U CN208299717U (en) | 2018-06-13 | 2018-06-13 | A kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208299717U true CN208299717U (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820914672.7U Active CN208299717U (en) | 2018-06-13 | 2018-06-13 | A kind of constant frequency and constant voltage cabinet of achievable motor four quadrant running |
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| CN (1) | CN208299717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687307A (en) * | 2019-01-29 | 2019-04-26 | 山西壹泰科电工设备有限公司 | Large power supply cabinet for powering to electron accelerator |
-
2018
- 2018-06-13 CN CN201820914672.7U patent/CN208299717U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687307A (en) * | 2019-01-29 | 2019-04-26 | 山西壹泰科电工设备有限公司 | Large power supply cabinet for powering to electron accelerator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 330008 3088 Ziyang Avenue, Nanchang hi tech Development Zone, Jiangxi Patentee after: Kangfu Technology Co., Ltd Address before: 330008 3088 Ziyang Avenue, Nanchang hi tech Development Zone, Jiangxi Patentee before: Fu Fu Polytron Technologies Inc |
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| CP01 | Change in the name or title of a patent holder |