CN208589910U - A kind of energy feedback all-in-one machine frequency-converter device - Google Patents
A kind of energy feedback all-in-one machine frequency-converter device Download PDFInfo
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- CN208589910U CN208589910U CN201821402869.9U CN201821402869U CN208589910U CN 208589910 U CN208589910 U CN 208589910U CN 201821402869 U CN201821402869 U CN 201821402869U CN 208589910 U CN208589910 U CN 208589910U
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Abstract
The energy feedback all-in-one machine frequency-converter device of the utility model, including shell and circuit part, circuit part are made of rectification module, inverted power module, feedback power module, reactor and capacitance component；Be characterized in that: power grid is connected to the input terminal of rectification module, the circuit that the output of rectification module is formed through timing contactor and time delay resistance parallel connection is followed by the input terminal in inverted power module, the input terminal of feedback power module is connected with the input terminal of inverted power module, and the output of feedback power module is successively followed by with contactor on power grid through reactor, cutting-in control.The energy feedback all-in-one machine frequency-converter device of the utility model, in energy feedback, inverted power module serves as rectification circuit, feedback power module is input to after the electric energy that motor issues is rectified, it feeds back in power grid, to realize the recycling of electric energy, avoids energy waste caused by existing energy consumption, beneficial effect is significant, is suitable for the application of popularization.
Description
Technical field
The utility model relates to a kind of frequency-converter devices, more specifically, more particularly to a kind of energy feedback all-in-one machine change
Frequency device device.
Background technique
Ac variable frequency speed regulation is with its excellent speed regulation and starting and braking performance and high efficiency, High Power Factor and energy conservation effect
It is main to become current energy conservation, improve process flow and improve product quality and improve environment, one kind of Promote Technology for fruit
Means.Motor is due to position energy or inertia, and in some stage of entire jig frequency, the rotating ratio frequency converter for loading drive motor is defeated
Revolving speed corresponding to frequency is taller out, and motor is in regenerative power generation state, and the regenerative electric energy of generation is transferred to DC side filter
On wave capacitor, pumping voltage is generated.Excessively high pumping voltage is possible to damage switching device, electrolytic capacitor, or even can destroy electricity
The insulation of machine, to threaten system trouble free service.Therefore, this partial regeneration energy must be handled.
The method of general processing regeneration energy has energy consumption and energy feedback.Energy consumption is added in frequency converter DC side
Regenerative electric energy is consumed on power resistor by special energy-dissipating brake circuit, is converted into thermal energy by discharge resistance unit block,
Because of referred to herein as resistive braking.To guarantee system safety operation, this part electric energy, which has to be changed into thermal energy, to be consumed in vain in resistance
On.Energy feedback is the effective means for realizing energy regenerating, the consumption ways of high energy consumption can be gradually substituted, however, in motor
Energy feedback circuit is added on frequency-variable controller, can not only change the circuit structure of existing frequency-variable controller, but also give frequency conversion
Heat dissipation of device etc., which does not have, proposes new technological challenge, if heat dissipation is unreasonable, it will influence the service life of frequency converter.
Summary of the invention
The utility model in order to overcome the shortcomings of the above technical problems, provides a kind of energy feedback all-in-one machine frequency converter dress
It sets.
The energy feedback all-in-one machine frequency-converter device of the utility model, including shell and the circuit portion being set in shell
Point, circuit part is made of rectification module, inverted power module, feedback power module, reactor and capacitance component；Its feature exists
In: power grid is connected to the input terminal of rectification module, the electricity that the output of rectification module is formed through timing contactor and time delay resistance parallel connection
Road is followed by the input terminal in inverted power module, and the output of inverted power module is connected with the power end of motor, inverter power
The input terminal of module is parallel with bus capacitor；The input terminal of feedback power module is connected with the input terminal of inverted power module,
The output of feedback power module is successively followed by with contactor on power grid through reactor, cutting-in control, and capacitor assembly is connected to electricity
On route between anti-device and cutting-in control contactor, feedback power module via line adopts the voltage-phase of power grid
Collection.
The energy feedback all-in-one machine frequency-converter device of the utility model, the shell by bottom plate, top panel, epipleural and under
Side plate composition, epipleural and lower side panel offer uptake and lower air port, uptake and lower air port close to the side of bottom plate respectively
Between be provided with heat sink assembly, the inverted power module, feedback power module, rectification module, reactor and capacitance component
It is both secured on heat sink assembly.
The energy feedback all-in-one machine frequency-converter device of the utility model, including connecting copper bar circuit board, power panel, master control borad
And liquid crystal display, liquid crystal display are set on top panel, connecting copper bar circuit board is located at the top of heat sink assembly, power supply
Plate is located at the top of connecting copper bar circuit board, and control panel is located at the top of power panel.
The energy feedback all-in-one machine frequency-converter device of the utility model, the inverted power module and feedback power module are equal
It is made of 3 IGBT, 3 IGBT interface boards and 3 Absorption Capacitances.
The beneficial effects of the utility model are: the energy feedback all-in-one machine frequency-converter device of the utility model, AC network
Successively rectified module, inverted power module are powered motor, realize the frequency adjusting for being input to motor power end, with
The revolving speed etc. of motor is controlled；By adding feedback power module, in energy feedback, inverted power module serves as rectification
Circuit is input to feedback power module after rectifying the electric energy that motor issues, then by feedback power module according to the power grid of detection
Voltage-phase is fed back in power grid after reactor and capacitance component filtering, to realize the recycling of electric energy, is avoided existing
There is energy waste caused by energy consumption, beneficial effect is significant, is suitable for the application of popularization.
Detailed description of the invention
Fig. 1 is the circuit diagram of the energy feedback all-in-one machine frequency-converter device of the utility model；
Fig. 2, Fig. 3 are the structural schematic diagram of the energy feedback all-in-one machine frequency-converter device of the utility model.
In figure: 1 inverted power module, 2 feedback power modules, 3 rectification modules, 4 heat sink assemblies, 5 reactors, 6 capacitors
Component, 7 connecting copper bar circuit boards, 8 power panels, 9 cooling fans, 10 liquid crystal displays, 11 top panels, 12 master control borads, 13 bottom plates,
14 epipleurals, 15 lower side panels, 16 uptakes, 17 lower air ports, 18 motors；1-1 IGBT, 1-2 Absorption Capacitance, 1-3 IGBT interface
Plate, 2-1 IGBT, 2-2 Absorption Capacitance, 2-3 IGBT interface board.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
The energy feedback all-in-one machine frequency-converter device of the utility model is made of shell and the circuit part in shell,
As shown in Figure 1, give the circuit diagram of the energy feedback all-in-one machine frequency-converter device of the utility model, shown in circuit portion
Divide and be made of rectification module 3, inverted power module 1, feedback power module 2, reactor 5 and capacitance component 6, power grid is connected to rectification
AC rectification is direct current and exported by the input terminal of module 3, rectification module 3.The output end and inverter power of rectification module 3
The input terminal of module 1 is connected, and timing contactor is in series on the route between rectification module 3 and inverted power module 1 and is prolonged
When resistance composition parallel circuit, be connected to bus capacitor, the output of inverted power module 1 on the input terminal of inverted power module 1
The supply terminals of motor 18 is connected, to realize power supply and frequency control to motor 18.When just powering on, electric current is very big, is
Realize that the protection to circuit, the output of rectification module 3 are first charged to bus capacitor through time delay resistance, set when voltage rises to
After definite value, then timing contactor is connected, realizes rectification module 3 to the normal power supply of inverted power module 1.
The input terminal of shown feedback power module 2 is connected with the input terminal of inverted power module 1, feedback power module 2
Output be successively followed by with contactor on power grid through reactor 5 and cutting-in control, reactor 5 and cutting-in control with contactor it
Between line on be connected to capacitance component 6, reactor 5 and capacitance component 6 pressure stabilizing and filter carried out to the output of feedback power module 2
Wave.The also via line of feedback power module 2 detects the voltage-phase of power grid, so that the electric energy that will feed back is with suitable phase
It is input on power grid.Inverted power module 1 is by 3 IGBT(1-1), 3 Absorption Capacitances (1-2) and 3 IGBT interface boards (1-3)
Composition, feedback power module 2 is also by 3 IGBT(2-1), 3 Absorption Capacitances (2-2) and 3 IGBT interface boards (2-3) form.
When energy feedback, inverted power module 1 serves as finishing circuit, is direct current by the AC rectification of 18 feedback of motor, is input to
In feedback power module 2, feedback power module 2 carries out inversion processing to the output of inverted power module 1 again, is converted into alternating current
And be fed back on power grid according to electric network voltage phase, realize that energy regenerating utilizes.
As shown in Figures 2 and 3, the structural representation of the energy feedback all-in-one machine frequency-converter device of the utility model is given
Figure, shown in shell be made of bottom plate 13, top panel 11, epipleural 14 and lower side panel 15, shown epipleural 14 and lower side panel 15
The upper side close to bottom plate 13 offers uptake 16 and lower air port 17 respectively, and heat sink assembly 4 is arranged close to bottom plate 13, heat dissipation
Be provided with cooling fan 9 at the uptake 16 in device assembly 4, in this way, the cooling wind that is blown into of cooling fan 9 by uptake 16 into
Out, it is escaped after taking away the heat on heat sink assembly 4 by lower air port 17.As the biggish inverted power module 1 of calorific value, feedback
Power module 2, rectification module 3, reactor 5 and capacitance component 6 are all set on heat sink assembly 4, the heat issued so as to device
Amount can shed in time, guarantee the service life of device.
Connecting copper bar circuit board 7, power panel 8, master control borad 12 are disposed between heat sink assembly 4 and top panel 11,
Connecting copper bar circuit board 7 is located at the top of heat sink assembly 4, and power panel 8 is located at the top of connecting copper bar circuit board 7, master control borad
12 are located at the top of power panel 8.Liquid crystal display 10 is additionally provided on top panel 11, to show the parameter letter of frequency-converter device
Breath.
Claims (4)
1. a kind of energy feedback all-in-one machine frequency-converter device, including shell and the circuit part being set in shell, circuit part
It is made of rectification module (3), inverted power module (1), feedback power module (2), reactor (5) and capacitance component (6)；It is special
Sign is: power grid is connected to the input terminal of rectification module (3), and the output of rectification module is through timing contactor and time delay resistance parallel connection shape
At circuit be followed by the input terminal of inverted power module (1), the output and the power end phase of motor (18) of inverted power module
Connection, the input terminal of inverted power module are parallel with bus capacitor；The input terminal and inverted power module of feedback power module (2)
Input terminal be connected, the output of feedback power module is successively followed by with contactor in power grid through reactor (5), cutting-in control
On, capacitor assembly is connected on the route between reactor and cutting-in control contactor, and feedback power module via line is to electricity
The voltage-phase of net is acquired.
2. energy feedback all-in-one machine frequency-converter device according to claim 1, it is characterised in that: the shell is by bottom plate
(13), top panel (11), epipleural (14) and lower side panel (15) composition, epipleural and lower side panel are opened respectively close to the side of bottom plate
Equipped with uptake (16) and lower air port (17), heat sink assembly (4), the inverter power are provided between uptake and lower air port
Module (1), feedback power module (2), rectification module (3), reactor (5) and capacitance component (6) are both secured to heat sink assembly
On.
3. energy feedback all-in-one machine frequency-converter device according to claim 1 or 2, it is characterised in that: including connecting copper bar
Circuit board (7), power panel (8), master control borad (12) and liquid crystal display (10), liquid crystal display are set on top panel (11),
Connecting copper bar circuit board is located at the top of heat sink assembly, and power panel is located at the top of connecting copper bar circuit board, and control panel is located at
The top of power panel.
4. energy feedback all-in-one machine frequency-converter device according to claim 1 or 2, it is characterised in that: the inverter power
Module (1) and feedback power module (2) are made of 3 IGBT, 3 IGBT interface boards and 3 Absorption Capacitances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402869.9U CN208589910U (en) | 2018-08-29 | 2018-08-29 | A kind of energy feedback all-in-one machine frequency-converter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402869.9U CN208589910U (en) | 2018-08-29 | 2018-08-29 | A kind of energy feedback all-in-one machine frequency-converter device |
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| Publication Number | Publication Date |
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| CN208589910U true CN208589910U (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821402869.9U Active CN208589910U (en) | 2018-08-29 | 2018-08-29 | A kind of energy feedback all-in-one machine frequency-converter device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669101A (en) * | 2020-06-17 | 2020-09-15 | 上海辛格林纳新时达电机有限公司 | Frequency conversion control cabinet |
-
2018
- 2018-08-29 CN CN201821402869.9U patent/CN208589910U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669101A (en) * | 2020-06-17 | 2020-09-15 | 上海辛格林纳新时达电机有限公司 | Frequency conversion control cabinet |
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