CN206559239U - It is easy to the high-power ABB frequency converters of upper electric test-run a machine - Google Patents

Abstract

The utility model discloses a kind of high-power ABB frequency converters for being easy to upper electric test-run a machine, including transformer, rectifier bridge, energy capacitance set, IGBT inversion modules, POWER plates, AGDR driving plates, AINT main circuit boards, RDCU control panels and guidance panel；Also include test switching circuit, test switching circuit includes test control device, two current limliting bulbs, one section of connecting copper bar and single-pole double-throw relay；Wherein, the positive output end connection of two current limliting bulbs test branch road in series, its one end and energy capacitance set；One end of connecting copper bar and the positive output end of energy capacitance set are connected；One of movable contact of single-pole double-throw relay is connected with testing one end of branch road, and the other end connection of another movable contact and connecting copper bar, stationary contact is connected with the positive feeder ear of IGBT inversion modules；Test control device includes two terminals, and two terminals are coupled with the two ends of the coil of single-pole double-throw relay respectively.The utility model has the advantage for being easy to upper electric test-run a machine.

Description

It is easy to the high-power ABB frequency converters of upper electric test-run a machine

Technical field

The utility model is related to a kind of frequency converter maintenance technology, more specifically, it relates to which a kind of be easy to upper electric test-run a machine High-power ABB frequency converters.

Background technology

Frequency converter is the electric energy control that power frequency supply is transformed to another frequency using the on-off action of power semiconductor device Device processed.With the fast development of modern power electronics technology and microelectric technique, high-power RHVC is continuous Ground is grown up, and is difficult to the high-voltage problem solved always originally, has been obtained very well by devices in series or unit series connection in recent years Solution.

Frequency converter needs electric test-run a machine after final assembly, and this is an event that must be acted cautiously, it is necessary to take phase The measure answered, it is ensured that when abnormal conditions occur, newly changing IGBT module will not damage.During test-run a machine, frequency converter startup moment is most " will At one moment of life ", without the hasty upper electricity under some safeguard procedures, the IGBT module newly changed can be made to damage in a flash, made Cheng Geng great loss.

At present, conventional measure is：The power supply of IGBT module is disconnected, that is, one section of connecting copper bar is removed, by three contraries The positive feeder ear for becoming circuit disconnects.Then two 25W alternating current 220V bulbs are sealed in gap, because frequency converter DC voltage is about 560V or so, the pressure-resistant deficiency of a bulb, two bulbs of palpus connect to meet resistance to pressure request.So, even if inverter circuit has Short trouble is present, and because of the decompression metering function of light, hands over the supply electric current of inverter circuit to be limited in 100mA, thus IGBT moulds Block there will be no the danger of damage.

But, as the measure using the above, it is necessary to first pull down one section of connecting copper bar, then by current limliting bulb string in circuit, It is cumbersome, it is unfavorable for improving the efficiency of test-run a machine.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of big work(for being easy to upper electric test-run a machine Rate ABB frequency converters, with the advantage for being easy to upper electric test-run a machine.

To achieve the above object, the utility model provides following technical scheme：

A kind of high-power ABB frequency converters for being easy to upper electric test-run a machine, including transformer, rectifier bridge, energy capacitance set, IGBT are inverse Become module, POWER plates, AGDR driving plates, AINT main circuit boards, RDCU control panels and guidance panel；Also include test switching Circuit, the test switching circuit include test control device, two current limliting bulbs, one section of connecting copper bar and single-pole double throw after Electrical equipment；Wherein, the positive output end connection of two current limliting bulbs test branch road in series, its one end and energy capacitance set；Connection One end of copper bar and the positive output end of energy capacitance set are connected；One of movable contact of single-pole double-throw relay and test branch road One end connection, the other end of another movable contact and connecting copper bar connects, the positive feeder ear of stationary contact and IGBT inversion modules Connection；The test control device includes two terminals, two terminals respectively with the coil of single-pole double-throw relay two End coupling, the coil on/off electricity for controlling single-pole double-throw relay.

Pass through above technical scheme：On needs during electric test-run a machine, by operating test control device to make single-pole double throw relay The coil electricity of device, and then the contact switch of single-pole double-throw relay switches to test branch road, is disconnected with connecting copper bar；Work as test At the end of, make the coil blackout of single-pole double-throw relay, contact switch and the connecting copper bar of single-pole double-throw relay are reconnected. In this way, operating personnel save the time, improve efficiency without being dismounted again to connecting copper bar.

Preferably, the test control device includes power supply and controlling switch, wherein, the positive pole of the power supply is connected to it In a terminals, negative pole is connected to another terminals by controlling switch.

Pass through above technical scheme：Only need to operate the controlling switch, the coil of turn-on power single-pole double-throw relay Link circuit, you can realize the coil power supply to single-pole double-throw relay.

Preferably, the controlling switch is also in series with indicator lamp.

Pass through above technical scheme：When single-pole double-throw relay, which is switched to, to be connected with test branch road, indicator lamp can be bright Rise, to indicate operating personnel.

Preferably, the test control device also include charging control circuit, the input of the charging control circuit with The output end of POWER plates is connected to obtain charging voltage, and output end is connected to export charging voltage to power supply with power supply.

Pass through above technical scheme：Can be using the direct current inside frequency converter to the power source charges, it is to avoid because power supply lacks After electricity, the contact switch of single-pole double-throw relay is caused to reset.

Preferably, the controlling switch include triode, some solving locking keys, first with gate circuit, second with gate circuit with And some not circuits；Described first couples with a portion solving locking key respectively with the input of gate circuit, some NOT gates electricity The input on road is coupled with another part solving locking key respectively；Described second with the input of gate circuit respectively with first and door electricity The output end coupling of road and some not circuits；The base stage of the triode and the second output end coupling with gate circuit, transmitting Pole, colelctor electrode are connected with terminals, power supply respectively.

Pass through above technical scheme：Operating personnel are only when only pressing the solving locking key being connected with first with gate circuit, and three Pole pipe can just be turned on, and power supply starts the coil power supply to single-pole double-throw relay.

Preferably, the solving locking key uses self-locking button.

Pass through above technical scheme：Operating personnel are easy to operate without always according to solving locking key.

Brief description of the drawings

Fig. 1 is the integral module figure of high-power ABB frequency converters in embodiment；

Fig. 2 is the circuit diagram of test control device in embodiment；

Fig. 3 is the physical circuit figure of controlling switch in embodiment.

Reference：100th, rectifier bridge；200th, energy capacitance set；300th, switching circuit is tested；310th, test control device； 311st, charging control circuit；312nd, power supply；313rd, controlling switch；320th, connecting copper bar；400th, IGBT inversion modules；500、AGDR Driving plate；600th, POWER plates；700th, AINT main circuit boards；800th, guidance panel；900th, RDCU control panels.

Embodiment

With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model The mode of applying is not limited only to this.

Reference picture 1, the present embodiment provides a kind of high-power ABB frequency converters for being easy to upper electric test-run a machine, including transformer T1, whole Flow bridge 100, energy capacitance set 200, IGBT inversion modules 400, POWER plates 600, AGDR driving plates 500, AINT main circuit boards 700th, RDCU control panels 900, guidance panel 800 and test switching circuit 300.

It is AC380V voltages that transformer T1, which is used for the AC220V voltage conversions of input, and the AC380V voltages are successively via whole After the stream progress of bridge 100 rectification, energy capacitance set 200 are filtered, DC560V voltages are converted to.The DC560V voltages are on the one hand defeated Enter to POWER plates 600, be depressured（DC-DC is converted）, voltage stabilizing processing, the voltage such as final output DC24V, DC12V, DC5V, with AGDR driving plates 500, AINT main circuit boards 700, RDCU control panels 900 is supplied respectively to use；On the other hand by test switching Circuit 300 is input to IGBT inversion modules 400, is used as the operating voltage of IGBT inversion modules 400.

AGDR driving plates 500 are connected by 3 groups of connection winding displacements with AINT plates, and its effect is：(1) directly with IGBT module phase Even；(2) gate pole is controlled, control IGBT conductings, saturation feedback and temperature detection.Thus AGDR driving plates 500 are controllable by AINT Control instruction, for the directly work of control IGBT inversion modules 400, and the work of IGBT inversion modules 400 can be gathered Make parameter, such as electric current, temperature.

The effect of AINT main circuit boards 700：（1）All high pressures and internal measurement element in control operation；（2）Electric current is surveyed Amount；（3）Control instruction is sent to AGDR to power to control AGDR, and to AGDR；（4）Detect current failure (ground connection, short circuit）.

RDCU control panels 900 are connected by optical fiber with AINT main circuit boards 700, and its effect is：（1）Receive AINT main circuits The analog quantity of the output of plate 700, digital quantity signal；（2）With three programmable relay outputs, to control part mould in frequency converter The work of block；（3）Communication module interface, coder module interface is connected with guidance panel 800, and power is carried out for operating personnel Modification of parameter etc..

Due in ABB frequency converters, POWER plates 600, AGDR driving plates 500, AINT main circuit boards 700, RDCU control panels 900 belong to the hardware module of standard configuration, and its specific circuit structure and operation principle belong to the well known of those skilled in the art and known Know, therefore the present embodiment is repeated no more.

With reference to Fig. 1, Fig. 2, test switching circuit 300 includes test control device 310, two current limliting bulbs, one section of connection Copper bar 320 and single-pole double-throw relay KM1；Wherein, two current limliting bulb (L1, L2) test branch roads in series, its one end It is connected with the positive output end of energy capacitance set 200；One end of connecting copper bar 320 is connected with the positive output end of energy capacitance set 200； Single-pole double-throw relay KM1 one of movable contact is connected with testing one end of branch road, another movable contact and connecting copper bar 320 other end connection, stationary contact is connected with the positive feeder ear of IGBT inversion modules 400；Test control device 310 includes two Terminals, power supply 312, controlling switch 313 and indicator lamp L3, wherein, the positive pole of power supply 312 is connected to one of wiring End, negative pole is connected to another terminals by controlling switch 313；Two terminals are respectively with single-pole double-throw relay KM1's The two ends coupling of coil.

Above-mentioned power supply 312 includes at least one piece chargeable lithium cell, meanwhile, in order to be charged to the chargeable lithium cell, In the present embodiment, test control device 310 also include charging control circuit 311, the input of charging control circuit 311 with The output end of POWER plates 600 is connected to obtain charging voltage, and output end is connected with power supply 312 with electric to the output charging of power supply 312 Pressure.

Reference picture 2, Fig. 3, controlling switch 313 include triode Q1, some solving locking keys, first with gate circuit N1, second with Gate circuit N4 and some not circuits；Wherein, solving locking key uses self-locking button；As an example, the quantity of solving locking key takes 5. The quantity of not circuit takes 2（N2、N3）；First with gate circuit N1 input respectively with 3 solving locking keys（1 number key, 2 number keys, 3 number keys）Coupling, two other not circuit（N2、N3）Input respectively with a solving locking key（4 number keys, 5 number keys）Coupling； Second with gate circuit N4 input respectively with first and gate circuit N1 and not circuit（N2、N3）Output end coupling.Wherein, When each solving locking key is pressed, a high level signal is exported.Therefore, only in 1 number key, 2 number keys, 3 number keys while quilt When pressing, first can export the signal of high level with gate circuit N1；And 4 number keys, 5 number keys are not when being pressed, not circuit N2, N3 can just export the signal of high level, in this way, second can just export the unlocking signal Vj of high level with gate circuit N4.And It is other in any case, second with gate circuit N4 export low level unlocking signal Vj.Export high with gate circuit N4 when second During the unlocking signal Vj of level, triode Q1 conductings, and then cause coil power supply of the power supply 312 to single-pole double-throw relay KM1.

Claims (6)

1. a kind of high-power ABB frequency converters for being easy to upper electric test-run a machine, including transformer, rectifier bridge (100), energy capacitance set (200), IGBT inversion modules (400), POWER plates (600), AGDR driving plates (500), AINT main circuit boards (700), RDCU controls Making sheet (900) and guidance panel (800)；It is characterized in that, in addition to test switching circuit (300), the test switching circuit (300) test control device (310), two current limliting bulbs (L1, L2), one section of connecting copper bar (320) and single-pole double throw are included Relay；Wherein, two current limliting bulbs test branch road in series, the positive output end of its one end and energy capacitance set (200) connects Connect；One end of connecting copper bar (320) is connected with the positive output end of energy capacitance set (200)；Wherein the one of single-pole double-throw relay Individual movable contact with test branch road one end be connected, another movable contact is connected with the other end of connecting copper bar (320), stationary contact and The positive feeder ear connection of IGBT inversion modules (400)；The test control device (310) includes two terminals, two wiring End is coupled with the two ends of the coil of single-pole double-throw relay respectively, the coil on/off electricity for controlling single-pole double-throw relay.

2. the high-power ABB frequency converters according to claim 1 for being easy to upper electric test-run a machine, it is characterized in that, the testing and control Device (310) includes power supply (312) and controlling switch (313), wherein, the positive pole of the power supply (312) is connected to one of them Terminals, negative pole is connected to another terminals by controlling switch (313).

3. the high-power ABB frequency converters according to claim 2 for being easy to upper electric test-run a machine, it is characterized in that, the controlling switch (313) also it is in series with indicator lamp (L3).

4. the high-power ABB frequency converters according to claim 2 for being easy to upper electric test-run a machine, it is characterized in that, the testing and control Device (310) also includes charging control circuit (311), input and the POWER plates (600) of the charging control circuit (311) Output end connect to obtain charging voltage, output end is connected with power supply (312) with to power supply (312) output charging voltage.

5. the high-power ABB frequency converters according to claim 2 for being easy to upper electric test-run a machine, it is characterized in that, the controlling switch (313) including triode, some solving locking keys, first and gate circuit, second and gate circuit and some not circuits；Described first Coupled respectively with a portion solving locking key with the input of gate circuit, the inputs of some not circuits respectively with other one Decompose locking key coupling；Described second with the input of gate circuit respectively with the first output end with gate circuit and some not circuits Coupling；The base stage of the triode is coupled with second with the output end of gate circuit, emitter stage, colelctor electrode respectively with terminals, electricity Source (312) is connected.

6. the high-power ABB frequency converters according to claim 5 for being easy to upper electric test-run a machine, it is characterized in that, the solving locking key is adopted Use self-locking button.