CN110165882A - For powering on the inverter of buffering - Google Patents
For powering on the inverter of buffering Download PDFInfo
- Publication number
- CN110165882A CN110165882A CN201810430849.0A CN201810430849A CN110165882A CN 110165882 A CN110165882 A CN 110165882A CN 201810430849 A CN201810430849 A CN 201810430849A CN 110165882 A CN110165882 A CN 110165882A
- Authority
- CN
- China
- Prior art keywords
- inverter
- circuit
- thyristor
- diode
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/34—Snubber circuits
- H02M1/344—Active dissipative snubbers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The present invention relates to technical field of electricity, disclose a kind of for powering on the inverter of buffering.Wherein, which includes: buffer circuit, rectification circuit, filter circuit, inverter circuit, and the rectification circuit is arranged in ac input end, and the filter circuit is connect with the rectification circuit and the inverter circuit；The buffer circuit is arranged in direct-flow input end, and the buffer circuit includes that thyristor Q1, diode D4 and resistance R1, the thyristor Q1 and diode D4 are connected in series on direct current input positive pole line loop, and the resistance R1 is connected in parallel on the both ends of the thyristor Q1.Thus, it is possible to solve the shock problem in the input power up of direct current in alternating current-direct current Mixed design and alternating current-direct current handoff procedure to inverter input terminal.
Description
Technical field
The present invention relates to technical field of electricity more particularly to a kind of for powering on the inverter of buffering.
Background technique
Complicated and changeable with missile truck use environment, the requirement of battlefield survival is constantly promoted, newer versions of these missiles
The energy resource system of car launcher mostly uses direct current lithium battery group and alternating current generator energy mix for electricity output, and two kinds of energy pass through
Inverter is transformed to stablize alternating voltage for the electrical equipment or secondary power supply use on missile truck.When two kinds of energy are same
When be input to during inverter switches over mutually to inverter input circuit design bring many technological difficulties:
1) two kinds of energy are input in inverter simultaneously, when AC-input voltage is higher than DC input voitage, can be produced
Anti- filling of the raw AC-input voltage to DC input voitage；
2) it in the state of being especially DC voltage in two kinds of mutual handoff procedures of input voltage and being higher than alternating voltage, can produce
Impact in raw direct current input power up to inverter input terminal.
Summary of the invention
It is an object of the invention to overcome the shortage of prior art, provide a kind of for powering on the inverter of buffering, energy
Enough solve above-mentioned the problems of the prior art.
Technical solution of the invention: a kind of for powering on the inverter of buffering, which includes: buffering electricity
Road, rectification circuit, filter circuit, inverter circuit, in which:
The rectification circuit setting is in ac input end, the filter circuit and the rectification circuit and the inverter circuit
Connection；
The buffer circuit is arranged in direct-flow input end, and the buffer circuit includes thyristor Q1, diode D4 and resistance
R1, the thyristor Q1 and diode D4 are connected in series on direct current input positive pole line loop, and the resistance R1 is connected in parallel on described
The both ends of thyristor Q1.
Preferably, the anode of the thyristor Q1 is connected to the positive bus-bar of direct current input, and cathode is connected to the diode
The anode of D4, controlled stage are connected to the accessory power supply end of inverter, and the cathode of the diode D4 is connected to inverter
DC bus, one end of the resistance R1 are connected to the anode of the thyristor Q1, and the other end is connected to the thyristor Q1's
Cathode.
Preferably, the filter circuit includes filter capacitor C1.
Preferably, the filter capacitor C1 is arranged on the DC bus of inverter.
Preferably, which further includes radiator, for radiating to the resistance R1.
Preferably, the rectification circuit is three-phase rectification bridge.
Through the above technical solutions, switching input direct-current input and direct current during AC-input voltage has already powered on
The amplitude of voltage can end DC bus-bar voltage to straight by diode D4 when being less than the amplitude of the voltage after AC rectification
Input terminal is counter fills for stream；The amplitude of voltage after switching input is greater than AC rectification for the amplitude of direct current input and DC voltage
When can prevent voltage jump occur at the DC bus end at C1 capacitor both ends by resistance R1 and thyristor Q1.Thus, it is possible to
It solves to rush inverter input terminal in direct current input power up and alternating current-direct current handoff procedure in alternating current-direct current Mixed design
Problem is hit, to avoid each device failure of inverter and lead to inverter failure.
Detailed description of the invention
Included attached drawing is used to provide to be further understood from the embodiment of the present invention, and which constitute one of specification
Point, for illustrating the embodiment of the present invention, and come together to illustrate the principle of the present invention with verbal description.It should be evident that below
Attached drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, is not paying creation
Property labour under the premise of, be also possible to obtain other drawings based on these drawings.
Fig. 1 is provided in an embodiment of the present invention a kind of for powering on the schematic illustration of the inverter of buffering.
Specific embodiment
Specific embodiments of the present invention are described in detail below in conjunction with attached drawing.In the following description, for solution
Purpose and not restrictive is released, elaborates detail, to help to be apparent from the present invention.However, to those skilled in the art
It is readily apparent that the present invention can also be practiced in the other embodiments departing from these details for member.
It should be noted that only showing in the accompanying drawings in order to avoid having obscured the present invention because of unnecessary details
Gone out with closely related device structure and/or processing step according to the solution of the present invention, and be omitted with relationship of the present invention not
Big other details.
Fig. 1 is provided in an embodiment of the present invention a kind of for powering on the schematic illustration of the inverter of buffering.
Wherein, it for example can be applied to car launcher for powering on the inverter of buffering described in Fig. 1.
As shown in Figure 1, a kind of inverter for powering on buffering provided in an embodiment of the present invention may include: buffering electricity
Road 10, rectification circuit 12, filter circuit 14, inverter circuit 16, in which:
The rectification circuit 12 setting is in ac input end, the filter circuit 14 and the rectification circuit 12 and described inverse
Power transformation road 16 connects；
The buffer circuit 10 is arranged in direct-flow input end, and the buffer circuit 10 may include thyristor Q1, diode
D4 and resistance R1, the thyristor Q1 and diode D4 are connected in series on direct current input positive pole line loop, and the resistance R1 is simultaneously
It is associated in the both ends of the thyristor Q1.
Wherein, resistance R1 can be metalfilmresistor, and thyristor Q1 can be unidirectional thyristor.
Through the above technical solutions, switching input direct-current input and direct current during AC-input voltage has already powered on
The amplitude of voltage can end DC bus-bar voltage to straight by diode D4 when being less than the amplitude of the voltage after AC rectification
Input terminal is counter fills for stream；The amplitude of voltage after switching input is greater than AC rectification for the amplitude of direct current input and DC voltage
When can prevent voltage jump occur at the DC bus end at C1 capacitor both ends by resistance R1 and thyristor Q1.Thus, it is possible to
It solves to rush inverter input terminal in direct current input power up and alternating current-direct current handoff procedure in alternating current-direct current Mixed design
Problem is hit, to avoid each device failure of inverter and lead to inverter failure.
According to an embodiment of the present invention, the anode of the thyristor Q1 is connected to the positive bus-bar of direct current input, and cathode connects
It is connected to the anode of the diode D4, controlled stage is connected to the accessory power supply end of inverter, and the cathode of the diode D4 connects
It is connected to the DC bus (positive bus-bar) of inverter, one end of the resistance R1 is connected to the anode of the thyristor Q1, another
End is connected to the cathode of the thyristor Q1.
According to an embodiment of the present invention, the filter circuit may include filter capacitor C1.
According to an embodiment of the present invention, the filter capacitor C1 can be set on the DC bus of inverter.
According to an embodiment of the present invention, which further includes radiator, for radiating to the resistance R1.
According to an embodiment of the present invention, the rectification circuit can be three-phase rectification bridge.
As shown in Figure 1, the three-phase rectification bridge may include three groups of thyristors being connected in parallel, every group of thyristor may include
Two thyristors.
In addition, as shown in Figure 1, inverter circuit may include three inductance L1、L2、L3, three diode D1, D2, D3, three
A triode V1, V2, V3, and three diode (wherein, sun of diode in parallel with three triodes V1, V2, V3 respectively
Pole is connected with the emitter of corresponding triode, and the cathode of diode is connected with the collector of corresponding triode).
More specifically, inductance L1One end is connected to the cathode of diode D4, inductance L1The other end is connected to the sun of diode D1
Between pole and the collector of triode V1；Inductance L2One end is connected to the cathode of diode D4, inductance L2The other end is connected to two poles
Between the anode of pipe D2 and the collector of triode V2；Inductance L3One end is connected to the cathode of diode D4, inductance L3The other end connects
It connects between the anode of diode D3 and the collector of triode V3.
When independent exchange input, alternating voltage is rectified into DC voltage by rectifier bridge and is existed by filter capacitor C1 load
On DC bus.End DC bus-bar voltage by diode D4 to fill to direct-flow input end is counter.When DC voltage individually enters,
DC voltage slowly charges to filter capacitor C1 by resistance R1 and diode D4, is delayed after 3~5S, thyristor Q1 receives height
Level signal makes turn on thyristors, and DC input voitage is loaded by thyristor Q1 and diode D4 by filter capacitor C1
On DC bus.In the case that AC and DC inputs simultaneously, exchange input is rectified into direct current load by three-phase rectification bridge
On the DC bus at the both ends filter capacitor C1, direct current input is loaded in filter capacitor C1 simultaneously by resistance R1 and diode D4
On the DC bus at both ends, when the amplitude of AC-input voltage is higher than the amplitude of DC input voitage, diode D4 can be to prevent
Only the DC voltage after ac voltage rectifier is counter to direct-flow input end fills, when the amplitude of DC input voitage is higher than exchange input electricity
When the amplitude of pressure, resistance R1 and thyristor Q1 in buffer circuit can prevent the DC voltage mutation at the both ends filter capacitor C1 from making
At there is biggish dash current to cause the device failures such as diode D4, filter capacitor C1 on DC bus.
In other words, in the case that AC power source has inputted, inverter works normally, diode D4 cathode is connected
Inverter positive bus-bar voltage amplitude be equal to AC rectification after voltage amplitude, DC voltage is input at this time
In inverter, the amplitude of DC input voitage is greater than the amplitude of the voltage after AC rectification, and DC input voitage can lead to
Cross resistance R1 in buffer circuit and carry out current limliting, thus slowly charge to the both ends filter capacitor C1 reduce to diode D4 and
The impact of capacitor C1, thyristor Q1 receive high level signal and execute conducting operation, DC input voitage by thyristor Q1 and
Diode D4 is loaded on DC bus by filter capacitor C1.
It solves direct current in alternating current-direct current Mixed design as a result, to input in power up and alternating current-direct current handoff procedure to inversion
The shock problem of power input.
The inverter of the present invention for powering on buffering is described below with reference to example.
In this example, by taking inverter of the present invention is using Mr. Yu's type of missile car launcher as an example.
Inverter input voltage can be high-energy battery group and power takeoff generation unit device, wherein battery in car launcher
Group voltage range for example can be with are as follows: DC210V~420V, power takeoff generation unit device voltage range for example can be with are as follows: and AC150V~
420V。
When inverter exchanges input 150V, the busbar voltage after rectification is about 210V, at this time battery group direct current
It is 420V that crush-cutting, which changes to DC voltage in inverter,.If buffer circuit is powered on without the R1 and Q1 direct current formed, at this point, directly
Galvanic electricity powers on and voltage is 420V, has the voltage jump of 210-420V in the DC bus-bar voltage of inverter, since bus connects
There is 5000uF filter capacitor, this voltage jump will cause heavy current impact, and it is harmful to thyristor Q1 and filter capacitor C1,
Influence reliability.(wherein, buffer resistance R1 for example can be 50 Europe to the buffer circuit of the inverter through the invention
Nurse), maximum buffer current is 210V/50 ohm=4 amperes.It is, can limit current in 4A, thyristor Q1 and
The rated current of diode D4 can be for example 150A, have biggish current margin, reduce to filter capacitor C1 and two
The impact of pole pipe D4.
As above it describes for a kind of embodiment and/or the feature that shows can be in a manner of same or similar at one or more
It is used in a number of other embodiments, and/or combines or substitute the feature in other embodiments with the feature in other embodiments
It uses.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when using herein, but simultaneously
It is not excluded for the presence or additional of one or more other features, one integral piece, step, component or combinations thereof.
The many features and advantage of these embodiments are clear according to the detailed description, therefore appended claims are intended to
Cover all these feature and advantage of these embodiments fallen into its true spirit and range.Further, since this field
Technical staff is readily apparent that many modifications and changes, therefore is not meant to for the embodiment of the present invention to be limited to illustrated and description essence
Really structurally and operationally, but all suitable modifications and the equivalent fallen within the scope of its can be covered.
Unspecified part of the present invention is known to the skilled person technology.
Claims (6)
1. a kind of for powering on the inverter of buffering, which is characterized in that the inverter include: buffer circuit, rectification circuit,
Filter circuit, inverter circuit, in which:
The rectification circuit setting connects in ac input end, the filter circuit and the rectification circuit and the inverter circuit
It connects；
The buffer circuit is arranged in direct-flow input end, and the buffer circuit includes thyristor Q1, diode D4 and resistance R1, institute
It states thyristor Q1 and diode D4 to be connected in series on direct current input positive pole line loop, the resistance R1 is connected in parallel on the thyristor
The both ends of Q1.
2. inverter according to claim 1, which is characterized in that the anode of the thyristor Q1 is connected to direct current input
Positive bus-bar, cathode is connected to the anode of the diode D4, and controlled stage is connected to the accessory power supply end of inverter, described two
The cathode of pole pipe D4 is connected to the DC bus of inverter, and one end of the resistance R1 is connected to the sun of the thyristor Q1
Pole, the other end are connected to the cathode of the thyristor Q1.
3. inverter according to claim 2, which is characterized in that the filter circuit includes filter capacitor C1.
4. inverter according to claim 3, which is characterized in that the straight of inverter is arranged in the filter capacitor C1
It flows on bus.
5. inverter described in any one of -4 according to claim 1, which is characterized in that the inverter further includes heat dissipation
Device, for radiating to the resistance R1.
6. inverter described in any one of -4 according to claim 1, which is characterized in that the rectification circuit is three phase rectifier
Bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810430849.0A CN110165882A (en) | 2018-05-08 | 2018-05-08 | For powering on the inverter of buffering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810430849.0A CN110165882A (en) | 2018-05-08 | 2018-05-08 | For powering on the inverter of buffering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110165882A true CN110165882A (en) | 2019-08-23 |
Family
ID=67644969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810430849.0A Pending CN110165882A (en) | 2018-05-08 | 2018-05-08 | For powering on the inverter of buffering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110165882A (en) |
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Application publication date: 20190823 |