CN203519779U - Detection apparatus of three-phase inverter power module - Google Patents
Detection apparatus of three-phase inverter power module Download PDFInfo
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- CN203519779U CN203519779U CN201320630001.5U CN201320630001U CN203519779U CN 203519779 U CN203519779 U CN 203519779U CN 201320630001 U CN201320630001 U CN 201320630001U CN 203519779 U CN203519779 U CN 203519779U
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Abstract
Disclosed in the utility model is a detection apparatus of a three-phase inverter power module. The detection apparatus is characterized in that an input side of a direct-current input module is electrically connected with an anode (Ud+) of a direct-current input voltage and a cathode (Ud-) of the direct-current input voltage; and an output side of the direct-current input module is electrically connected with a three-phase inverter power module. An input side of an alternating-current output module is electrically connected with the three-phase inverter power module; and an output side of the alternating-current output module is electrically connected with a load. The direct-current input module includes a first voltmeter (PV1) for detecting the input voltage of the three-phase inverter power module; and the alternating-current output module includes a second voltmeter (PV2) for detecting the output voltage of the three-phase inverter power module. According to the embodiment of the utility model, under the circumstances that the personal safety of the staff is guaranteed, the three-phase inverter power module can be effectively detected, thereby reducing the risk of line fault occurrence at the electric locomotive.
Description
Technical field
The utility model relates to electric locomotive field, relates in particular to a kind of pick-up unit of three-phase inverter power model.
Background technology
In electric locomotive field, three-phase inverter is one of important devices in auxiliary converter cabinet of locomotive; Its main application is for blower fan provides regulated power, and the purposes of blower fan is to provide wind regime for the cooling system of main circuit of electric locomotive and the Pneumatic brake systems of locomotive, so the working condition of three-phase inverter has directly affected the overall performance of electric locomotive.
Three-phase inverter power model is the core circuit of three-phase inverter, and its quality has directly determined the working condition of three-phase inverter.As shown in Figure 1, for the electrical block diagram of three-phase inverter power model in prior art, it can comprise with the interface circuit of external circuit: input dc power anodal In+, input dc power negative pole In-, output three-phase electricity first-phase R, output three-phase electricity second-phase S, output three-phase electricity third phase T, R phase drive plate X1, S phase drive plate X2 and T phase drive plate X3.The three-phase inverter power model using due to electric locomotive need to have very good reliability and stability, and the three-phase inverter power model that therefore current domestic electric locomotive uses is all from external import mostly; And in the prior art, lack pick-up unit and detection means that three-phase inverter power model is detected, so this has buried potential safety hazard to the operation of electric locomotive.
Summary of the invention
One of the purpose of this utility model is to provide a kind of pick-up unit of three-phase inverter power model, so that the in the situation that of safeguard work personnel personal safety, three-phase inverter power model effectively detected, thereby reduced the risk that line fault appears in electric locomotive.
The purpose of this utility model is achieved through the following technical solutions:
A pick-up unit for three-phase inverter power model, comprising: direct current load module, AC output module and load;
Direct current load module comprises: the first circuit breaker Q A1, the first voltage table PV1, the first D.C. contactor KM1, the second D.C. contactor KM2, the first resistance R 1, the second resistance R 2 and the first capacitor C 1;
Two input ends of the first circuit breaker Q A1 are electrically connected to the anodal Ud+ of DC input voitage and the negative pole Ud-of DC input voitage respectively; The cathode output end of the first circuit breaker Q A1 is electrically connected to the positive pole of the first voltage table PV1 and the input end of the first D.C. contactor KM1 respectively; The cathode output end of the first circuit breaker Q A1 is electrically connected to the negative pole of the first voltage table PV1 and the input end of the second D.C. contactor KM2 respectively;
The output terminal of the first D.C. contactor KM1 is electrically connected to one end of the first resistance R 1 and the anodal In+ of the input dc power of three-phase inverter power model respectively; The output terminal of the second D.C. contactor KM2 is electrically connected to the input dc power negative pole In-of one end of the first capacitor C 1, one end of the second resistance R 2 and three-phase inverter power model respectively; The other end interconnection of the other end of the other end of the first resistance R 1, the first capacitor C 1 and the second resistance R 2;
AC output module comprises: the first three-phase reactor L1, the 3rd three-phase commutation bridge ZP3 and second voltage table PV2; R phase input end, S phase input end, the corresponding connection of T phase input end of the output three-phase electricity first-phase R of three-phase inverter power model, output three-phase electricity second-phase S, output three-phase electricity third phase T and the first three-phase reactor L1; R phase input end, S phase input end, the corresponding connection of T phase input end of the R phase output terminal of the first three-phase reactor L1, S phase output terminal, T phase output terminal and the 3rd three-phase commutation bridge ZP3; Two DC output ends of the 3rd three-phase commutation bridge ZP3 are electrically connected to second voltage table PV2;
The corresponding connection of R phase output terminal, S phase output terminal, T phase output terminal of the U phase input end of load, V phase input end, W phase input end and the first three-phase reactor L1;
The first voltage table PV1 is for detection of the input voltage of three-phase inverter power model;
Second voltage table PV2 is for detection of the output voltage of three-phase inverter power model.
Preferably, described direct current load module also comprises: the first voltage detecting pilot lamp LD1; The first voltage detecting pilot lamp LD1 is in parallel with the first voltage table PV1.
Preferably, this pick-up unit also comprises: main control module;
Described direct current load module also comprises: the first voltage sensor TV1 and the first current sensor TA1; The first voltage sensor TV1 is connected in parallel between the output terminal of the first D.C. contactor KM1 and the output terminal of the second D.C. contactor KM2; The first current sensor TA1 connects with the anodal In+ of input dc power of three-phase inverter power model, and the output terminal of the first D.C. contactor KM1 is electrically connected to the anodal In+ of input dc power of three-phase inverter power model by the first current sensor TA1;
Described AC output module also comprises: the first three-phase commutation bridge ZP1, the 5th voltage sensor TV5, the second three-phase commutation bridge ZP2, the second current transformer TA2, the 3rd current transformer TA3, the 4th current transformer TA4, the first transient diode V1, the second transient diode V2, the 3rd transient diode V3, the 4th transient diode V4, the 5th transient diode V5 and the 6th transient diode V6;
The primary side of the second current transformer TA2 is connected between the R phase output terminal of the first three-phase reactor L1 and the U phase input end of load; After the first transient diode V1 and the second transient diode V2 differential concatenation, in parallel with the secondary side of the second current transformer TA2, thus form the first sys node and the second sys node;
The primary side of the 3rd current transformer TA3 is connected between the S phase output terminal of the first three-phase reactor L1 and the V phase input end of load; After the 3rd transient diode V3 and the 4th transient diode V4 differential concatenation, in parallel with the secondary side of the 3rd current transformer TA3, thus form the 3rd sys node and the 4th sys node;
The primary side of the 4th current transformer TA4 is connected between the T phase output terminal of the first three-phase reactor L1 and the W phase input end of load; After the 5th transient diode V5 and the 6th transient diode V6 differential concatenation, in parallel with the secondary side of the 4th current transformer TA4, thus form the 5th sys node and the 6th sys node;
R phase input end, S phase input end, the corresponding connection of T phase input end of the first sys node, the 3rd sys node, the 5th sys node and the second three-phase commutation bridge ZP2; Ground connection after the second sys node, the 4th sys node and the interconnection of the 6th sys node;
R phase input end, S phase input end, the corresponding connection of T phase input end of the R phase output terminal of the first three-phase reactor L1, S phase output terminal, T phase output terminal and the first three-phase commutation bridge ZP1; Two DC output ends of the first three-phase commutation bridge ZP1 are electrically connected to the 5th voltage sensor TV5;
Main control module is electrically connected to the first voltage sensor TV1 in direct current load module, to obtain the input voltage of three-phase inverter power model;
Main control module is electrically connected to the first current sensor TA1 in direct current load module, to obtain the input current of three-phase inverter power model;
Main control module is electrically connected to two DC output ends of the second three-phase commutation bridge ZP2 in AC output module, to obtain the output current of three-phase inverter power model;
Main control module is electrically connected to the 5th voltage sensor TV5 in AC output module, to obtain the output voltage of three-phase inverter power model;
Main control module is also electrically connected to R phase drive plate X1, S phase drive plate X2 and the T phase drive plate X2 of three-phase inverter power model respectively, so that the working condition of three-phase inverter power model is monitored.
Preferably, this pick-up unit also comprises: display module; Main control module is electrically connected to display module, to show the detection data of three-phase inverter power model.
Preferably, this pick-up unit also comprises: user's load module; User's load module is directly electrically connected to main control module, thereby main control module directly obtains the input message of user's load module; Or,
User's load module is electrically connected to display module, thereby the input message of user's load module is by after display module, is delivered to main control module.
Preferably, this pick-up unit also comprises: detect testing table and line interface technique car;
Direct current load module, AC output module, main control module, display module and user's load module are all arranged on and detect on testing table;
Line interface technique car is provided with direct current input interface, alternating current output interface and the drive plate interface mating with three-phase inverter power model;
Direct current load module is electrically connected to the anodal In+ of input dc power and the input dc power negative pole In-of three-phase inverter power model by the direct current input interface on line interface technique car;
AC output module is electrically connected to output three-phase electricity first-phase R, output three-phase electricity second-phase S and the output three-phase electricity third phase T of three-phase inverter power model by the alternating current output interface on line interface technique car;
Main control module is electrically connected to R phase drive plate X1, S phase drive plate X2 and the T phase drive plate X2 of three-phase inverter power model by the drive plate interface on line interface technique car.
Preferably, described detection testing table comprises housing 1, control panel 2, access door 3 and light fixture 4;
The display screen of display module is arranged on control panel 2, and other circuit of display module are all arranged on the inside of housing 1;
The input block of user's load module is arranged on control panel 2, and other circuit of user's load module are all arranged on the inside of housing 1;
Direct current load module, AC output module and main control module are all arranged on the inside of housing 1.
The technical scheme being provided by above-mentioned the utility model can be found out, the pick-up unit of the three-phase inverter power model that the utility model embodiment provides is electrically connected to three-phase inverter power model by direct current load module and AC output module, thereby has built a platform that three-phase inverter power model is detected; Owing to being all provided with testing circuit in direct current load module and AC output module; and be provided with a lot of holding circuits; therefore make the realization of the utility model embodiment can be the in the situation that of safeguard work personnel personal safety; three-phase inverter power model effectively detected, thereby reduced the risk that line fault appears in electric locomotive.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the electrical block diagram of three-phase inverter power model in prior art;
The structural representation one of the pick-up unit of the three-phase inverter power model that Fig. 2 provides for the utility model embodiment;
The structural representation two of the pick-up unit of the three-phase inverter power model that Fig. 3 provides for the utility model embodiment;
The structural representation three of the pick-up unit of the three-phase inverter power model that Fig. 4 provides for the utility model embodiment;
The structural representation four of the pick-up unit of the three-phase inverter power model that Fig. 5 provides for the utility model embodiment;
The structural representation five of the pick-up unit of the three-phase inverter power model that Fig. 6 provides for the utility model embodiment;
The structural representation six of the pick-up unit of the three-phase inverter power model that Fig. 7 provides for the utility model embodiment;
The structural representation seven of the pick-up unit of the three-phase inverter power model that Fig. 8 provides for the utility model embodiment;
The structural representation eight of the pick-up unit of the three-phase inverter power model that Fig. 9 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to protection domain of the present utility model.
The pick-up unit of the three-phase inverter power model below the utility model embodiment being provided is described in detail.
As shown in Fig. 2 to Fig. 9, a kind of pick-up unit of three-phase inverter power model, its concrete structure can comprise: direct current load module, AC output module and load;
The input side of direct current load module is electrically connected to the anodal Ud+ of DC input voitage and the negative pole Ud-of DC input voitage; The outgoing side of direct current load module is electrically connected to the anodal In+ of input dc power and the input dc power negative pole In-of three-phase inverter power model;
The input side of AC output module is electrically connected to output three-phase electricity first-phase R, output three-phase electricity second-phase S and the output three-phase electricity third phase T of three-phase inverter power model; The outgoing side of AC output module is electrically connected to U phase input end, V phase input end, the W phase input end of load.
Particularly, as shown in Figure 2, Figure 3 and Figure 4, the specific implementation of above-mentioned each parts can comprise:
(1) direct current load module: this direct current load module can comprise: the first circuit breaker Q A1, the first voltage table PV1, the first D.C. contactor KM1, the second D.C. contactor KM2, the first resistance R 1, the second resistance R 2 and the first capacitor C 1.
Two input ends of the first circuit breaker Q A1 are electrically connected to the anodal Ud+ of DC input voitage and the negative pole Ud-of DC input voitage respectively, thereby obtain DC input voitage, to send three-phase inverter power model to, detect; In actual applications, in order to make the detection of three-phase inverter power model meet the operation demand of electric locomotive, DC input voitage is preferably DC600V, and input current is preferably 83A, and nominal power is preferably 50kVA.
The cathode output end of the first circuit breaker Q A1 is electrically connected to the positive pole of the first voltage table PV1 and the input end of the first D.C. contactor KM1 respectively; The cathode output end of the first circuit breaker Q A1 is electrically connected to the negative pole of the first voltage table PV1 and the input end of the second D.C. contactor KM2 respectively; That is to say, DC input voitage enters the first D.C. contactor KM1 and the second D.C. contactor KM2 after by the first circuit breaker Q A1.The first circuit breaker Q A1 can adopt air-break of the prior art, and it can carry out short-circuit protection to circuit; The first D.C. contactor KM1 and the second D.C. contactor KM2 can provide electric protection when circuit breaks down, once i.e. circuit connection mistake produces after large electric current or input voltage exceed regulation setting, the first D.C. contactor KM1 and/or the second D.C. contactor KM2 will disconnect, to protect subsequent conditioning circuit; The first voltage table PV1 can detect and demonstrate the numerical value of DC input voitage, the i.e. input voltage of three-phase inverter power model.
The output terminal of the first D.C. contactor KM1 is electrically connected to one end of the first resistance R 1 and the anodal In+ of the input dc power of three-phase inverter power model respectively; The output terminal of the second D.C. contactor KM2 is electrically connected to the input dc power negative pole In-of one end of the first capacitor C 1, one end of the second resistance R 2 and three-phase inverter power model respectively; The other end interconnection of the other end of the other end of the first resistance R 1, the first capacitor C 1 and the second resistance R 2 (described interconnection can comprise that three intersects at a point by wire, or in three any both all by wire, connect); The first resistance R 1, the first capacitor C 1 and the second resistance R 2 threes have formed RC connection in series-parallel filtering circuit, the surge in can filtering direct current load module, thus provide stable detection voltage for three-phase inverter power model.
(2) AC output module: this AC output module can comprise: the first three-phase reactor L1, the 3rd three-phase commutation bridge ZP3 and second voltage table PV2;
R phase input end, S phase input end, the corresponding connection of T phase input end of the output three-phase electricity first-phase R of three-phase inverter power model, output three-phase electricity second-phase S, output three-phase electricity third phase T and the first three-phase reactor L1; DC input voitage is flowed through after three-phase inverter power model can become AC three-phase output voltage, in actual applications, if the function of three-phase inverter power model is normal, the DC input voitage of DC600V can be changed by three-phase inverter power model into the ac output voltage of AC380V/3P.Short-circuit current rush when the first three-phase reactor L1 can suppress three-phase electricity output.
R phase input end, S phase input end, the corresponding connection of T phase input end of the R phase output terminal of the first three-phase reactor L1, S phase output terminal, T phase output terminal and the 3rd three-phase commutation bridge ZP3; Two DC output ends of the 3rd three-phase commutation bridge ZP3 are electrically connected to second voltage table PV2; The 3rd three-phase commutation bridge ZP3 can distill the three-phase electricity of the first three-phase reactor L1 output, and forms two DC output ends; Second voltage table PV2 is by being electrically connected to two DC output ends of the 3rd three-phase commutation bridge ZP3, thereby can detect and demonstrate the numerical value of ac output voltage, the i.e. output voltage of three-phase inverter power model.The pick-up unit of the three-phase inverter power model that the utility model embodiment provides can detect by the first voltage table PV1 the DC input voitage of three-phase inverter power model, and can by second voltage table PV2, detect the ac output voltage of three-phase inverter power model, whether the basic function that just can determine three-phase inverter power model in conjunction with the two is normal.
(3) load: this load can for example, for being used the various consumers of three-phase electricity work: motor in prior art.The corresponding connection of R phase output terminal, S phase output terminal, T phase output terminal of the U phase input end of load, V phase input end, W phase input end and the first three-phase reactor L1.
Except technique scheme, as shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the pick-up unit of the three-phase inverter power model that the utility model embodiment provides can also comprise following technical scheme:
(1) direct current load module can also comprise: the first voltage detecting pilot lamp LD1; The first voltage detecting pilot lamp LD1 is in parallel with the first voltage table PV1; The first voltage detecting pilot lamp LD1 can provide input voltage demonstration, safe deixis, the safe-discharge deixis after power-off also can be provided, thereby facilitate the operation and maintenance of staff's safety.
(2) direct current load module can also comprise: the first voltage sensor TV1 and the first current sensor TA1;
The first voltage sensor TV1 is connected in parallel between the output terminal of the first D.C. contactor KM1 and the output terminal of the second D.C. contactor KM2; The first current sensor TA1 connects with the anodal In+ of input dc power of three-phase inverter power model, and the output terminal of the first D.C. contactor KM1 is electrically connected to the anodal In+ of input dc power of three-phase inverter power model by the first current sensor TA1; Therefore, the first voltage sensor TV1 can detect the input voltage of three-phase inverter power model, and the first current sensor TA1 can detect the input current of three-phase inverter power model.
(3) AC output module can also comprise: the first three-phase commutation bridge ZP1, the 5th voltage sensor TV5, the second three-phase commutation bridge ZP2, the second current transformer TA2, the 3rd current transformer TA3, the 4th current transformer TA4, the first transient diode V1, the second transient diode V2, the 3rd transient diode V3, the 4th transient diode V4, the 5th transient diode V5 and the 6th transient diode V6;
The primary side of the second current transformer TA2 is connected between the R phase output terminal of the first three-phase reactor L1 and the U phase input end of load; After the first transient diode V1 and the second transient diode V2 differential concatenation, in parallel with the secondary side of the second current transformer TA2, thus form the first sys node and the second sys node;
The primary side of the 3rd current transformer TA3 is connected between the S phase output terminal of the first three-phase reactor L1 and the V phase input end of load; After the 3rd transient diode V3 and the 4th transient diode V4 differential concatenation, in parallel with the secondary side of the 3rd current transformer TA3, thus form the 3rd sys node and the 4th sys node;
The primary side of the 4th current transformer TA4 is connected between the T phase output terminal of the first three-phase reactor L1 and the W phase input end of load; After the 5th transient diode V5 and the 6th transient diode V6 differential concatenation, in parallel with the secondary side of the 4th current transformer TA4, thus form the 5th sys node and the 6th sys node;
R phase input end, S phase input end, the corresponding connection of T phase input end of the first sys node, the 3rd sys node, the 5th sys node and the second three-phase commutation bridge ZP2; The second sys node, the 4th sys node and the interconnection of the 6th sys node (described interconnection can comprise that three intersects at a point by wire, or in three any both all by wire, connect) after ground connection.The second current transformer TA2 is for obtaining the output current of the output three-phase electricity first-phase R of three-phase inverter power model; The 3rd current transformer TA3 is for obtaining the output current of the output three-phase electricity second-phase S of three-phase inverter power model; The 4th current transformer TA4 is for obtaining the output current of the output three-phase electricity third phase T of three-phase inverter power model; The second three-phase commutation bridge ZP2 carries out rectification to the output current of the output current of the output current of output three-phase electricity first-phase R, output three-phase electricity second-phase S and output three-phase electricity third phase T, thereby obtains the output current of three-phase inverter power model.
R phase input end, S phase input end, the corresponding connection of T phase input end of the R phase output terminal of the first three-phase reactor L1, S phase output terminal, T phase output terminal and the first three-phase commutation bridge ZP1; Two DC output ends of the first three-phase commutation bridge ZP1 are electrically connected to the 5th voltage sensor TV5; The 5th voltage sensor TV5 can obtain the output voltage of three-phase inverter power model.
(4) this pick-up unit can also comprise: main control module; Main control module is electrically connected to the first voltage sensor TV1 in direct current load module, to obtain the input voltage of three-phase inverter power model; Main control module is electrically connected to the first current sensor TA1 in direct current load module, to obtain the input current of three-phase inverter power model; Main control module is electrically connected to two DC output ends of the second three-phase commutation bridge ZP2 in AC output module, to obtain the output current of three-phase inverter power model; Main control module is electrically connected to the 5th voltage sensor TV5 in AC output module, to obtain the output voltage of three-phase inverter power model; Main control module can also be electrically connected to R phase drive plate X1, S phase drive plate X2 and the T phase drive plate X3 of three-phase inverter power model respectively, so that the working condition of three-phase inverter power model is monitored.The working condition of the three-phase inverter power model that main control module can collect according to the input voltage of the three-phase inverter power model obtaining, input current, output voltage, output current and R phase drive plate X1, S phase drive plate X2 and T phase drive plate X3; control the operation of three-phase inverter power model, and three-phase inverter power model is carried out to safeguard protection.
Wherein, main control module can adopt take the circuit structure that dsp chip TMS320LF2407A is core in prior art, because the A/D signal input requirements of this dsp chip is the magnitude of voltage of 0～+ 3.3V, do not process current signal, therefore it is when obtaining the input voltage of three-phase inverter power model, input current, output voltage, output current and working parameters, need to nurse one's health these signals, make it to meet the A/D signal input requirements of this dsp chip.Concrete signal conditioning circuit can, with reference to accompanying drawing and known signal modulate circuit of the prior art, repeat no more in present specification.In actual applications, for guaranteeing that main control module can safe operation, main control module preferably adopts voltage sample input circuit of the prior art, and is preferably provided with overvoltage crowbar and under-voltage protecting circuit; Because voltage sample input circuit, overvoltage crowbar and under-voltage protecting circuit all can adopt known circuits of the prior art, so repeat no more in present specification.In addition, on main control module, be preferably provided with the scram button for Long-distance Control, once there is catastrophic failure, can cut off rapidly remote power feeding power supply, to protect the safety of whole pick-up unit and three-phase inverter power model.
(5) this pick-up unit can also comprise: display module; Main control module is electrically connected to display module, to show the detection data (these Monitoring Data can comprise: the input voltage of three-phase inverter power model, input current, output voltage, output current and working parameters) of three-phase inverter power model.Main control module can be electrically connected to display module by CAN bus, and can send to display module to show input voltage, input current, output voltage, output current and the working parameters of the three-phase inverter power model getting; Staff can learn by display module the detection data of three-phase inverter power model, and can determine in testing process and whether break down according to detection data, thereby not only can guarantee that this pick-up unit can safe operation, and can safeguard work personnel personal safety.
(6) this pick-up unit can also comprise: user's load module; User's load module can be electrically connected to main control module by any one in following two kinds of modes:
1. user's load module is directly electrically connected to main control module, thereby main control module directly obtains the input message of user's load module; Main control module can be used the operation of controlling three-phase inverter power model according to the input message of user's load module.
2. user's load module is electrically connected to display module, thereby the input message of user's load module is by after display module, is delivered to main control module; Main control module can be controlled input voltage, input current, output voltage, output current and the working parameters that display module shows three-phase inverter power model, and can control according to the input message of user's load module the operation of three-phase inverter power model.In actual applications, display module is preferably touch-screen, and user's load module can be button, and button is electrically connected to touch-screen, and staff can complete an operation by button and/or touch-screen.
This shows, the realization of the utility model embodiment can be the in the situation that of safeguard work personnel personal safety, three-phase inverter power model is effectively detected, and real-time exhibition is to staff, thereby reduced the risk that line fault appears in electric locomotive.
In order to make the technical solution of the utility model, technique effect complete display more, below illustrative example be elaborated.
Embodiment mono-
As shown in Figure 7, Figure 8 and Figure 9, a pick-up unit for three-phase inverter power model, its concrete structure can comprise: direct current load module, AC output module, load, main control module, display module, user's load module, detection testing table and line interface technique car.
As shown in Figures 2 to 6, direct current load module, AC output module, load, main control module, display module and user's load module all can adopt the content in technique scheme to arrange, and direct current load module, AC output module, main control module, display module and user's load module are all arranged on detection testing table.
Line interface technique car is provided with direct current input interface, alternating current output interface and the drive plate interface mating with three-phase inverter power model; Direct current load module is electrically connected to the anodal In+ of input dc power and the input dc power negative pole In-of three-phase inverter power model by the direct current input interface on line interface technique car; AC output module is electrically connected to output three-phase electricity first-phase R, output three-phase electricity second-phase S and the output three-phase electricity third phase T of three-phase inverter power model by the alternating current output interface on line interface technique car; Main control module is electrically connected to R phase drive plate X1, S phase drive plate X2 and the T phase drive plate X3 of three-phase inverter power model by the drive plate interface on line interface technique car.In the interface technique that line interface technique car adopts and interface layout and existing electric locomotive, the interface of three-phase inverter power model matches, thereby make testing environment that three-phase inverter power model is detected consistent as possible with the applied environment in actual electric locomotive, to guarantee to obtain good detection effect.
Particularly, described detection testing table can comprise housing 1, control panel 2, access door 3 and light fixture 4; Light fixture 4 is arranged at the top in housing 1 the place ahead; Control panel 2 is arranged at the top in housing 1 the place ahead, and is positioned at the below of light fixture 4; Access door 3 is arranged at the rear of housing 1; The display screen of display module is arranged on control panel 2, and other circuit of display module are all arranged on the inside of housing 1; The input block of user's load module is arranged on control panel 2, and other circuit of user's load module are all arranged on the inside of housing 1; Direct current load module, AC output module and main control module are all arranged on the inside of housing 1.In actual applications, on the housing 1 of control panel 2 belows, drawer 5 can be set, for placing for detection of some parts with record, make the hommization more of this pick-up unit.
This shows, the realization of the utility model embodiment can effectively detect three-phase inverter power model in the situation that of safeguard work personnel personal safety, thereby has reduced the risk that line fault appears in electric locomotive.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (7)
1. a pick-up unit for three-phase inverter power model, is characterized in that, comprising: direct current load module, AC output module and load;
Direct current load module comprises: the first isolating switch (QA1), the first voltage table (PV1), the first D.C. contactor (KM1), the second D.C. contactor (KM2), the first resistance (R1), the second resistance (R2) and the first electric capacity (C1);
Two input ends of the first isolating switch (QA1) are electrically connected to the positive pole (Ud+) of DC input voitage and the negative pole (Ud-) of DC input voitage respectively; The cathode output end of the first isolating switch (QA1) is electrically connected to the positive pole of the first voltage table (PV1) and the input end of the first D.C. contactor (KM1) respectively; The cathode output end of the first isolating switch (QA1) is electrically connected to the negative pole of the first voltage table (PV1) and the input end of the second D.C. contactor (KM2) respectively;
The output terminal of the first D.C. contactor (KM1) is electrically connected to one end of the first resistance (R1) and the input dc power of three-phase inverter power model anodal (In+) respectively; The output terminal of the second D.C. contactor (KM2) is electrically connected to the input dc power negative pole (In-) of one end of the first electric capacity (C1), one end of the second resistance (R2) and three-phase inverter power model respectively; The other end interconnection of the other end of the other end of the first resistance (R1), the first electric capacity (C1) and the second resistance (R2);
AC output module comprises: the first three-phase reactor (L1), the 3rd three-phase commutation bridge (ZP3) and second voltage table (PV2); The output three-phase electricity first-phase (R) of three-phase inverter power model, output three-phase electricity second-phase (S), output three-phase electricity third phase (T) and R phase input end, S phase input end, the corresponding connection of T phase input end of the first three-phase reactor (L1); R phase input end, S phase input end, the corresponding connection of T phase input end of the R phase output terminal of the first three-phase reactor (L1), S phase output terminal, T phase output terminal and the 3rd three-phase commutation bridge (ZP3); Two DC output ends of the 3rd three-phase commutation bridge (ZP3) are electrically connected to second voltage table (PV2);
The corresponding connection of R phase output terminal, S phase output terminal, T phase output terminal of the U phase input end of load, V phase input end, W phase input end and the first three-phase reactor (L1);
The first voltage table (PV1) is for detection of the input voltage of three-phase inverter power model;
Second voltage table (PV2) is for detection of the output voltage of three-phase inverter power model.
2. pick-up unit according to claim 1, is characterized in that, described direct current load module also comprises: the first voltage detecting pilot lamp (LD1); The first voltage detecting pilot lamp (LD1) is in parallel with the first voltage table (PV1).
3. pick-up unit according to claim 1 and 2, is characterized in that, this pick-up unit also comprises: main control module;
Described direct current load module also comprises: the first voltage sensor (TV1) and the first current sensor (TA1); The first voltage sensor (TV1) is connected in parallel between the output terminal of the first D.C. contactor (KM1) and the output terminal of the second D.C. contactor (KM2); The first current sensor (TA1) is connected with the input dc power anodal (In+) of three-phase inverter power model, and the output terminal of the first D.C. contactor (KM1) is electrically connected to the input dc power anodal (In+) of three-phase inverter power model by the first current sensor (TA1);
Described AC output module also comprises: the first three-phase commutation bridge (ZP1), the 5th voltage sensor (TV5), the second three-phase commutation bridge (ZP2), the second current transformer (TA2), the 3rd current transformer (TA3), the 4th current transformer (TA4), the first transient diode (V1), the second transient diode (V2), the 3rd transient diode (V3), the 4th transient diode (V4), the 5th transient diode (V5) and the 6th transient diode (V6);
The primary side of the second current transformer (TA2) is connected between the R phase output terminal of the first three-phase reactor (L1) and the U phase input end of load; After the first transient diode (V1) and the second transient diode (V2) differential concatenation, in parallel with the secondary side of the second current transformer (TA2), thus form the first sys node and the second sys node;
The primary side of the 3rd current transformer (TA3) is connected between the S phase output terminal of the first three-phase reactor (L1) and the V phase input end of load; After the 3rd transient diode (V3) and the 4th transient diode (V4) differential concatenation, in parallel with the secondary side of the 3rd current transformer (TA3), thus form the 3rd sys node and the 4th sys node;
The primary side of the 4th current transformer (TA4) is connected between the T phase output terminal of the first three-phase reactor (L1) and the W phase input end of load; After the 5th transient diode (V5) and the 6th transient diode (V6) differential concatenation, in parallel with the secondary side of the 4th current transformer (TA4), thus form the 5th sys node and the 6th sys node;
R phase input end, S phase input end, the corresponding connection of T phase input end of the first sys node, the 3rd sys node, the 5th sys node and the second three-phase commutation bridge (ZP2); Ground connection after the second sys node, the 4th sys node and the interconnection of the 6th sys node;
R phase input end, S phase input end, the corresponding connection of T phase input end of the R phase output terminal of the first three-phase reactor (L1), S phase output terminal, T phase output terminal and the first three-phase commutation bridge (ZP1); Two DC output ends of the first three-phase commutation bridge (ZP1) are electrically connected to the 5th voltage sensor (TV5);
Main control module is electrically connected to the first voltage sensor (TV1) in direct current load module, to obtain the input voltage of three-phase inverter power model;
Main control module is electrically connected to the first current sensor (TA1) in direct current load module, to obtain the input current of three-phase inverter power model;
Main control module is electrically connected to two DC output ends of the second three-phase commutation bridge (ZP2) in AC output module, to obtain the output current of three-phase inverter power model;
Main control module is electrically connected to the 5th voltage sensor (TV5) in AC output module, to obtain the output voltage of three-phase inverter power model;
Main control module is also electrically connected to R phase drive plate (X1), S phase drive plate (X2) and the T phase drive plate (X2) of three-phase inverter power model respectively, so that the working condition of three-phase inverter power model is monitored.
4. pick-up unit according to claim 3, is characterized in that, this pick-up unit also comprises: display module; Main control module is electrically connected to display module, to show the detection data of three-phase inverter power model.
5. pick-up unit according to claim 4, is characterized in that, this pick-up unit also comprises: user's load module;
User's load module is directly electrically connected to main control module, thereby main control module directly obtains the input message of user's load module; Or,
User's load module is electrically connected to display module, thereby the input message of user's load module is by after display module, is delivered to main control module.
6. pick-up unit according to claim 5, is characterized in that, this pick-up unit also comprises: detect testing table and line interface technique car;
Direct current load module, AC output module, main control module, display module and user's load module are all arranged on and detect on testing table;
Line interface technique car is provided with direct current input interface, alternating current output interface and the drive plate interface mating with three-phase inverter power model;
Direct current load module is electrically connected to input dc power anodal (In+) and the input dc power negative pole (In-) of three-phase inverter power model by the direct current input interface on line interface technique car;
AC output module is electrically connected to output three-phase electricity first-phase (R), output three-phase electricity second-phase (S) and the output three-phase electricity third phase (T) of three-phase inverter power model by the alternating current output interface on line interface technique car;
Main control module is electrically connected to R phase drive plate (X1), S phase drive plate (X2) and the T phase drive plate (X2) of three-phase inverter power model by the drive plate interface on line interface technique car.
7. pick-up unit according to claim 6, is characterized in that, described detection testing table comprises housing (1), control panel (2), access door (3) and light fixture (4);
Light fixture (4) is arranged at the top in housing (1) the place ahead; Control panel (2) is arranged at the top in housing (1) the place ahead, and is positioned at the below of light fixture (4); Access door (3) is arranged at the rear of housing (1);
It is upper that the display screen of display module is arranged on control panel (2), and other circuit of display module are all arranged on the inside of housing (1);
It is upper that the input block of user's load module is arranged on control panel (2), and other circuit of user's load module are all arranged on the inside of housing (1);
Direct current load module, AC output module and main control module are all arranged on the inside of housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630001.5U CN203519779U (en) | 2013-10-12 | 2013-10-12 | Detection apparatus of three-phase inverter power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320630001.5U CN203519779U (en) | 2013-10-12 | 2013-10-12 | Detection apparatus of three-phase inverter power module |
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| Publication Number | Publication Date |
|---|---|
| CN203519779U true CN203519779U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320630001.5U Withdrawn - After Issue CN203519779U (en) | 2013-10-12 | 2013-10-12 | Detection apparatus of three-phase inverter power module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576077A (en) * | 2013-10-12 | 2014-02-12 | 北京赛德高科铁道电气科技有限责任公司 | Device for detecting three-phase inverter power module |
| CN106531424A (en) * | 2016-12-30 | 2017-03-22 | 北京金风科创风电设备有限公司 | Water-cooled air reactor, power conversion device and wind generating set |
-
2013
- 2013-10-12 CN CN201320630001.5U patent/CN203519779U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576077A (en) * | 2013-10-12 | 2014-02-12 | 北京赛德高科铁道电气科技有限责任公司 | Device for detecting three-phase inverter power module |
| CN103576077B (en) * | 2013-10-12 | 2016-09-07 | 北京赛德高科铁道电气科技有限责任公司 | The detection device of three-phase inverter power module |
| CN106531424A (en) * | 2016-12-30 | 2017-03-22 | 北京金风科创风电设备有限公司 | Water-cooled air reactor, power conversion device and wind generating set |
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