CN109713910A - Only handle the alternating current steady voltage plug of Partial Power - Google Patents
Only handle the alternating current steady voltage plug of Partial Power Download PDFInfo
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- CN109713910A CN109713910A CN201910040389.5A CN201910040389A CN109713910A CN 109713910 A CN109713910 A CN 109713910A CN 201910040389 A CN201910040389 A CN 201910040389A CN 109713910 A CN109713910 A CN 109713910A
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Abstract
The present invention relates to a kind of alternating current steady voltage plugs for only handling Partial Power, solve the deficiencies in the prior art, for handling flow of power caused by output voltage and input voltage difference, including Technics of Power Electronic Conversion circuit, for handling difference power；Control circuit constructs control signal for acquiring the amplitude and phase of input voltage, and according to the voltage setting value that human-computer interaction module provides；Human-computer interaction module, voltage needed for being set for user；The control terminal of the Technics of Power Electronic Conversion circuit connects to the control circuit, and the control circuit is connect with human-computer interaction module.
Description
Technical field
The invention belongs to power electronics fields, and in particular to a kind of alternating current steady voltage plug for only handling Partial Power.
Background technique
With the rapid development of science and technology, all kinds of electrical equipments are growing day by day.However, consolidating due to electrical power distribution facility
There is feature, the nominal voltage of the virtual voltage and power grid that user obtains often has deviation.This problem is special to electrical equipment
It is that the precision equipment stringent to voltage requirement has threat.For this purpose, in many applications to voltage-sensitive such as national defence, section
It grinds, detect etc. in mechanisms, can be all powered using regulated power supply.Alternating current steady voltage plug belongs to one kind of regulated power supply, defeated
Form of power is alternating current out.When network voltage momentary fluctuation occurs or deviates for a long time, alternating current steady voltage plug can pass through
Internal adjustment to make up the fluctuation of network voltage, and then is electricity consumption in output end output amplitude, the alternating current of frequency stabilization
Equipment provides reliable power utilization environment.
Fig. 1 is existing AC power supply system schematic diagram.Common AC power source is one based on power electronic technique
AC-AC converter.It inputs termination alternating current, output termination electrical equipment.Whole electric energy needed for electrical equipment pass through this
AC power source is converted and is handled.
Existing alternating current steady voltage plug belongs to total power converter, still has a disadvantage, the i.e. power of power supply at present
Capacity has to be larger than all electrical equipments.If the power of electrical equipment is larger, the volume of power supply is larger, and cost is very high.
Summary of the invention
For above-mentioned technical problem present in the prior art, the present invention provides one kind to set meeting existing electricity consumption
On the basis of standby demand, reduce power-supply device volume, reduces the alternating current steady voltage plug for only handling Partial Power of equipment cost.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of exchange for only handling Partial Power
Regulated power supply, for handling flow of power caused by output voltage and input voltage difference, including
Technics of Power Electronic Conversion circuit, for handling difference power；
Control circuit, for acquiring the amplitude and phase of input voltage, and the voltage setting value provided according to human-computer interaction module
Construct control signal；
Human-computer interaction module, voltage needed for being set for user；
The control terminal of the Technics of Power Electronic Conversion circuit connects to the control circuit, and the control circuit and human-computer interaction module connect
It connects.
When alternating current input power supplying voltage is lower than target ac output voltage value, rectifier works in rectification state, and leads to
Cross DC/DC isolated converter and provide energy to inverter, inverter works in inverter mode, to exchange output provide with exchange it is defeated
The positive difference voltage entered increases alive purpose to reach；When alternating current input power supplying voltage high pressure target exchanges output electricity
When pressure value, inverter works in rectification state, and reversely provides energy, rectifier to rectifier by DC/DC isolated converter
Work in inverter mode, and extra electric energy fed back to alternating current source, inverter absorb electric energy to exchange output provide with
The reversed difference voltage of input is exchanged, to achieve the purpose that exchange output reduces voltage.Final realization output voltage stabilization
Purpose.AC power source proposed by the present invention only handles flow of power caused by output voltage and input voltage difference, compared to biography
The alternating current steady voltage plug of total power of uniting transformation, can be greatly reduced equipment cost under the premise of meeting power demand, diminution is set
Standby volume.AC power source volume-diminished proposed by the present invention, installation is simple, easy to carry, does not change the electricity of original electrical equipment
Gas connection, using convenient with later maintenance.Control circuit of the invention acquires the voltage of output end, current information, can facilitate
Ground integrated power meter function.The regulated power supply scheme can also realize small-scale pressure regulation effect, to simulating grid voltage
Variation and fluctuation.
Preferably, the Technics of Power Electronic Conversion circuit includes rectifier, DC/DC converter and inverter；Described
Rectifier converter be load supplying when be used as rectifier, converter to power grid feed when as inverter；
DC/DC converter is for adjusting and stable DC voltage；
The inverter is used as inverter when converter is load supplying, when converter is to power grid feed as rectifier,
The rectifier, DC/DC converter and inverter are sequentially connected, the control terminal of the rectifier, DC/DC converter and inverter
It is electrically connected with the control circuit.
Preferably, the control circuit includes sample circuit, digital signal processor and driver, the digital signal
Processor is connected by sample circuit and rectifier, DC/DC converter and inverter sampling, and the digital signal processor passes through
Driver is connect with the control terminal of rectifier, DC/DC converter and inverter.
Preferably, the human-computer interaction module and control circuit are by communication connection, human-computer interaction module is electric to control
The setting instruction of road transfer overvoltage, the power state information that the control circuit that human-computer interaction module receives transmits.
Preferably, the rectifier includes metal-oxide-semiconductor rectifier bridge and inductance L1, the first end of inductance L1 with exchange input electricity
Source connection, the second end of inductance L1 are connect with the input terminal of metal-oxide-semiconductor rectifier bridge, and the output end of metal-oxide-semiconductor rectifier bridge is become by DC/DC
The connection of the input terminal of parallel operation and inverter, inverter includes metal-oxide-semiconductor inverter bridge, inductance L3 and capacitor C3, metal-oxide-semiconductor inverter bridge it is defeated
Outlet is connect with the first end of inductance L3, is connected between the output end of inductance L3 by capacitor C3, and two ends of capacitor C3 are exchange
The grid of all metal-oxide-semiconductors passes through driver and digital signal processor in output end, metal-oxide-semiconductor rectifier bridge and metal-oxide-semiconductor inverter bridge
It connects, is configured with sample circuit, the sampling on input terminal and output end on the rectifier, inverter and DC/DC converter
Circuit is electrically connected with the digital signal processor.
Preferably, DC/DC converter is configured with high-frequency isolation transformer isolated topology DC/DC converter.
Preferably, the DC/DC converter includes input rectifying bridge, capacitor C1, transformer T, output rectifier bridge and electricity
Hold C2, the input terminal of input rectifying bridge is parallel with capacitor C1, and the input terminal of the input rectifying bridge and the output end of rectifier connect
Connect, the output end of input rectifying bridge is connect by transformer T with the input terminal for exporting rectifier bridge, export rectifier bridge output end and
The input terminal of inverter connects, and the output end of inverter is parallel with capacitor C2.
Substantial effect of the invention is: (1) proposed by the present invention AC power source only handle output voltage and input voltage
Flow of power caused by difference can be before meeting power demand compared to the alternating current steady voltage plug of traditional total power transformation
It puts, equipment cost is greatly reduced, reduce equipment volume.(2) AC power source volume-diminished proposed by the present invention, installation is simple,
It is easy to carry, do not change the electrical connection of original electrical equipment, using convenient with later maintenance.(3) control circuit of the invention
Acquire voltage, the current information of output end, it is convenient to integrated power meter function.
Detailed description of the invention
Fig. 1 is existing AC power supply system block diagram.
Fig. 2 is that Partial Power proposed by the present invention converts AC power supply system block diagram.
Fig. 3 is AC power source functional block diagram proposed by the present invention.
Fig. 4 is a kind of implementation of AC power source proposed by the present invention.
In figure, 1, human-computer interaction module, 2, driver, 3, sample circuit, 4, Technics of Power Electronic Conversion circuit, 5, digital signal
Processor.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, a specific embodiment of the invention is further described in detail.
A kind of alternating current steady voltage plug (referring to attached drawing 2 to 4) only handling Partial Power, for handling output voltage and input
Flow of power caused by voltage difference, including
Technics of Power Electronic Conversion circuit 4, for handling difference power；
Control circuit, for acquiring the amplitude and phase of input voltage, and the voltage setting value provided according to human-computer interaction module
Construct control signal；
Human-computer interaction module 1, voltage needed for being set for user；
The control terminal of the Technics of Power Electronic Conversion circuit connects to the control circuit, and the control circuit and human-computer interaction module connect
It connects.
The Technics of Power Electronic Conversion circuit includes rectifier, DC/DC converter and inverter；The rectifier is becoming
As rectifier when parallel operation is load supplying, when converter is fed to power grid as inverter；
DC/DC converter is for adjusting and stable DC voltage；
The inverter is used as inverter when converter is load supplying, when converter is to power grid feed as rectifier,
The rectifier, DC/DC converter and inverter are sequentially connected, the control terminal of the rectifier, DC/DC converter and inverter
It is electrically connected with the control circuit.The control circuit includes sample circuit 3, digital signal processor 5 and driver 2,
The digital signal processor is connected by sample circuit and rectifier, DC/DC converter and inverter sampling, the number letter
Number processor is connect by driver with the control terminal of rectifier, DC/DC converter and inverter.The human-computer interaction module with
Control circuit communication connection, human-computer interaction module set to control circuit transfer overvoltage and instruct, and human-computer interaction module receives control
The power state information that circuit transmits.The rectifier includes metal-oxide-semiconductor rectifier bridge and inductance L1, the first end of inductance L1 with exchange
Input power connection, the second end of inductance L1 are connect with the input terminal of metal-oxide-semiconductor rectifier bridge, and the output end of metal-oxide-semiconductor rectifier bridge passes through
The connection of the input terminal of DC/DC converter and inverter, inverter includes that metal-oxide-semiconductor inverter bridge, inductance L3 and capacitor C3, metal-oxide-semiconductor are inverse
The output end for becoming bridge is connect with the first end of inductance L3, is connected between the output end of inductance L3 by capacitor C3, the two of capacitor C3
End is ac output end, and the grid of all metal-oxide-semiconductors passes through driver in metal-oxide-semiconductor rectifier bridge and metal-oxide-semiconductor inverter bridge and number is believed
The connection of number processor is configured with sample circuit on input terminal and output end on the rectifier, inverter and DC/DC converter,
The sample circuit is electrically connected with the processor.DC/DC converter is configured with high-frequency isolation transformer isolated topology DC/
DC converter.The DC/DC converter includes input rectifying bridge, capacitor C1, transformer T, output rectifier bridge and capacitor C2, input
The input terminal of rectifier bridge is parallel with capacitor C1, and the input terminal of the input rectifying bridge and the output end of rectifier are connected, inputted whole
The output end of stream bridge is connect by transformer T with the input terminal of output rectifier bridge, and the output end and inverter of rectifier bridge are exported
Input terminal connection, the output end of inverter are parallel with capacitor C2.
In use, when alternating current input power supplying voltage is lower than target ac output voltage value, rectifier works the present embodiment
Energy is provided to inverter in rectification state, and by DC/DC isolated converter, inverter works in inverter mode, to exchange
Output provides and exchanges the positive difference voltage of input, increases alive purpose to reach；When alternating current input power supplying voltage is high
When pressing target ac output voltage value, inverter works in rectification state, and reversed to rectifier by DC/DC isolated converter
Energy is provided, rectifier works in inverter mode, and extra electric energy is fed back to alternating current source, and inverter absorbs electric energy and gives
Exchange output provides and exchanges the reversed difference voltage of input, to achieve the purpose that exchange output reduces voltage.It is final to realize
The purpose of output voltage stabilization.The AC power source that the present embodiment proposes only is handled caused by output voltage and input voltage difference
Flow of power can be greatly reduced compared to the alternating current steady voltage plug of traditional total power transformation under the premise of meeting power demand
Equipment cost reduces equipment volume.The AC power source volume-diminished that the present embodiment proposes, installation is simple, easy to carry, does not change
The electrical connection of original electrical equipment, using convenient with later maintenance.The control circuit of the present embodiment acquires the electricity of output end
Pressure, current information, it is convenient to integrated power meter function.The regulated power supply scheme can also realize small-scale pressure regulation effect,
Variation and fluctuation to simulating grid voltage.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (7)
1. a kind of alternating current steady voltage plug for only handling Partial Power, for handling caused by output voltage and input voltage difference
Flow of power, which is characterized in that including
Technics of Power Electronic Conversion circuit, for handling difference power；
Control circuit, for acquiring the amplitude and phase of input voltage, and the voltage setting value provided according to human-computer interaction module
Construct control signal；
Human-computer interaction module, voltage needed for being set for user；
The control terminal of the Technics of Power Electronic Conversion circuit connects to the control circuit, and the control circuit and human-computer interaction module connect
It connects.
2. the alternating current steady voltage plug according to claim 1 for only handling Partial Power, which is characterized in that the electric power electricity
Sub- translation circuit includes rectifier, DC/DC converter and inverter；Rectifier conduct when converter is load supplying
Rectifier, when converter is fed to power grid as inverter；
DC/DC converter is for adjusting and stable DC voltage；
The inverter is used as inverter when converter is load supplying, when converter is to power grid feed as rectifier,
The rectifier, DC/DC converter and inverter are sequentially connected, the control terminal of the rectifier, DC/DC converter and inverter
It is electrically connected with the control circuit.
3. the alternating current steady voltage plug according to claim 2 for only handling Partial Power, which is characterized in that the control circuit
Including sample circuit, digital signal processor and driver, the digital signal processor by sample circuit and rectifier,
DC/DC converter and inverter sampling connection, the digital signal processor pass through driver and rectifier, DC/DC converter
It is connected with the control terminal of inverter.
4. the alternating current steady voltage plug according to claim 3 for only handling Partial Power, which is characterized in that the human-computer interaction
Module and control circuit are by communication connection, and human-computer interaction module sets to control circuit transfer overvoltage and instructs, human-computer interaction mould
The power state information that the control circuit that block receives transmits.
5. the alternating current steady voltage plug according to claim 4 for only handling Partial Power, which is characterized in that the rectifier packet
Metal-oxide-semiconductor rectifier bridge and inductance L1 are included, the first end of inductance L1 is connect with alternating current input power supplying, the second end and metal-oxide-semiconductor of inductance L1
The input terminal of rectifier bridge connects, and the output end of metal-oxide-semiconductor rectifier bridge is connected by the input terminal of DC/DC converter and inverter, inverse
Becoming device includes metal-oxide-semiconductor inverter bridge, inductance L3 and capacitor C3, and the output end of metal-oxide-semiconductor inverter bridge is connect with the first end of inductance L3, electricity
Feel and being connected between the output end of L3 by capacitor C3, two ends of capacitor C3 are ac output end, and metal-oxide-semiconductor rectifier bridge and metal-oxide-semiconductor are inverse
The grid for becoming all metal-oxide-semiconductors in bridge passes through driver and connect with digital signal processor, the rectifier, inverter and DC/
It is configured with sample circuit on input terminal and output end on DC converter, the sample circuit is electric with the digital signal processor
Connection.
6. the alternating current steady voltage plug according to claim 5 for only handling Partial Power, which is characterized in that DC/DC converter
For configured with high-frequency isolation transformer isolated topology DC/DC converter.
7. the alternating current steady voltage plug according to claim 5 for only handling Partial Power, which is characterized in that the DC/DC becomes
Parallel operation includes that input rectifying bridge, capacitor C1, transformer T, output rectifier bridge and capacitor C2, the input terminal of input rectifying bridge are parallel with
Capacitor C1, the input terminal of the input rectifying bridge and the output end of rectifier connect, and the output end of input rectifying bridge passes through transformation
Device T with output rectifier bridge input terminal connect, export rectifier bridge output end and inverter input terminal connection, inverter it is defeated
Outlet is parallel with capacitor C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040389.5A CN109713910A (en) | 2019-01-16 | 2019-01-16 | Only handle the alternating current steady voltage plug of Partial Power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910040389.5A CN109713910A (en) | 2019-01-16 | 2019-01-16 | Only handle the alternating current steady voltage plug of Partial Power |
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| Publication Number | Publication Date |
|---|---|
| CN109713910A true CN109713910A (en) | 2019-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910040389.5A Pending CN109713910A (en) | 2019-01-16 | 2019-01-16 | Only handle the alternating current steady voltage plug of Partial Power |
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| Country | Link |
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| CN110048401A (en) * | 2019-05-21 | 2019-07-23 | 陕西科技大学 | A kind of direct-current grid bus voltage regulation device and method |
| CN110380631A (en) * | 2019-05-14 | 2019-10-25 | 浙江省检验检疫科学技术研究院 | High power density DC power supply |
| CN114336571A (en) * | 2020-09-30 | 2022-04-12 | 西安西电高压开关有限责任公司 | Direct current power grid access method and system |
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