CN103064036B - Aviation ground inverter power characteristic test system and observing and controlling method - Google Patents
Aviation ground inverter power characteristic test system and observing and controlling method Download PDFInfo
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- CN103064036B CN103064036B CN201210575374.7A CN201210575374A CN103064036B CN 103064036 B CN103064036 B CN 103064036B CN 201210575374 A CN201210575374 A CN 201210575374A CN 103064036 B CN103064036 B CN 103064036B
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Abstract
The invention discloses an aviation ground inverter power characteristic test system and observing and controlling method. The aviation ground inverter power characteristic test system comprises a three-phase large-power program control load, a voltage current signal processing circuit, a data acquisition card and a computer. An A input end, a B input end, a C input end and a N phase input end of the three-phase large-power program control load are respectively connected with an A phase, a B phase, a C phase and a N wire of the aviation ground inverter power. An A input end, B input end, C input end and N phase input end of the voltage current signal processing circuit are respectively connected with the A phase, the B phase, the C phase and the N wire of the aviation ground inverter power, and an output end of the aviation ground inverter power is connected with an input end of the data acquisition card. An output end of the data acquisition card is connected with the computer. The computer is connected with the three-phase large-power program control load through serial ports. The aviation ground inverter power characteristic test system can not only meet the aviation ground inverter power characteristic test requests to the international standard international standardization organization (ISO) 6858 and the civil aviation administration of China MH/T 6018, and but also be provided with the function of analyzing and assessing. And the system structure is arranged to reasonable, and the observing and controlling method is simple. The operation is convenient to do, and the measurement accuracy is high.
Description
Technical field
The invention belongs to technical field of electrical measurement, particularly relate to a kind of Ground inverter characteristic test system and investigating method.
Background technology
Ground inverter is the power supply civil power of ground 220/380V, 50Hz being transformed to 115/200V, the 400Hz meeting aviation power supply demand, for when ground to aviation power supply.Because the power supply quality of the consumer on aircraft to electric power system has strict requirement, and the ground power supply of Civil Aviation Airport will to the aviation power supply of home and overseas airline, therefore surface power supply power supply must meet ISO6858 international standard, meet civil aviaton of China MH/T6018 aircraft floor static power rows industry standard simultaneously, in addition, underproof power supply can impact consumer performance, thus generation potential safety hazard, and civil aviaton has been found that the situation of the airplane equipment operation irregularity that many cases cause therefrom and damage, therefore need to detect the characteristic of Ground inverter.The characteristic of current domestic existing Ground inverter mainly adopts Ground inverter testing table to test, this testing table is mainly used to the change of simulated aircraft load, for checking the power supply capacity of power supply, but lack according to the international standard ISO6858 of airplane power source and CAAC MH/T6018 the measurement of ground inverter supplied character, assessment and analysis.But up to the present domestic also do not have satisfactory Ground inverter characteristic testing equipment.
Summary of the invention
In order to solve the problem, a kind of content measurement is the object of the present invention is to provide to meet ISO6858 international standard and CAAC MH/T6018 industry standard, the Ground inverter characteristic test system that can test the characteristic of Ground inverter and assess and investigating method.
In order to achieve the above object, Ground inverter characteristic test system provided by the invention comprises the program control load of Three-phase high-power, voltage and current signal treatment circuit (voltage current transformer and interlock circuit composition), data collecting card and computing machine; Wherein A, B, C and the N phase input end of the program control load of Three-phase high-power are connected with N line with the A phase of Ground inverter, B phase, C phase respectively; A, B, C of voltage and current signal treatment circuit and N phase input end are connected with N line with the A phase of Ground inverter, B phase, C phase respectively, and its output terminal is connected with the input end of data collecting card; The output terminal of data collecting card is connected with computing machine, and computing machine is then connected by the program control load of serial communication interface and Three-phase high-power.
Described Ground inverter characteristic test system also comprises the printer be connected with computing machine.
The program control load of described Three-phase high-power is by output contactor identical with three, independent controlled A phase, B phase and C phase load are formed, output contactor is connected to Ground inverter and A phase, B phase, between C phase load, every phase load is by electric resistance array, electric inductance array, resistance contactor array, inductance contactor array, resistance controls, inductance control single chip computer and voltage signal conditioning circuit composition, wherein the output terminal of output contactor is connected with inductance contactor array with resistance contactor array simultaneously, resistance contactor array is connected with electric resistance array and electric inductance array respectively with inductance contactor array, resistance control single chip computer is connected with resistance contactor array by resistance control and drive system, inductance control single chip computer is connected with inductance contactor array by inductance control and drive system, is then connected by computer serial communication interface between resistance control, inductance control single chip computer, voltage signal conditioning circuit is connected between output contactor and resistance control single chip computer, electric resistance array is made up of 16 resistance, electric inductance array is made up of 16 inductance, employing digital form combines, step-length 10W or 10VAR, resistance contactor array is made up of 16 corresponding with 16 resistance in electric resistance array respectively resistance contactors, and inductance contactor array is made up of 16 corresponding with 16 inductance in electric inductance array respectively inductance contactors.
Described data collecting card adopts National Instruments's high-speed data acquisition card.
Described computing machine adopts industrial control computer, is provided with LABVIEW programming software and corresponding hardware driver software software in it.
In Ground inverter characteristic provided by the invention, steady-state characteristic parameter investigating method comprises the following step carried out in order:
1) carry out the S1 stage of power-factor of load setting: in this stage, on computer input device, set the power-factor of load according to test request by tester;
2) to the tested Ground inverter S2 stage whether no load test judges: if judged result is "No", enter next stage, otherwise enter the S8 stage;
3) whether it is the S3 stage that balanced load judges to the loading of tested Ground inverter institute: namely setting Ground inverter is balanced load test or asymmetric load test, if judged result is "Yes", enter next stage, otherwise enter the S15 stage;
4) the S4 stage of load percentage is set: in this stage, being set gradually by load percentage under the power factor of above-mentioned setting is 25%, 50%, 75%, 100%, 75%, 50% and 25%, and test terminates rear change power factor and proceeds test;
5) carry out the S5 stage calculated according to setup parameter: in this stage, computing machine calculates according to the power factor of above-mentioned setting and load percentage;
6) send the S6 stage of load steering order: in this stage, computing machine sends corresponding steering order by serial communication interface to A, B, C threephase load according to the result of calculation of previous step, to carry out the load preparatory stage;
7) in the S7 stage of output contactor adhesive: in this stage, the program control load of Three-phase high-power will load according to above-mentioned steering order, then by reliable for output contactor adhesive, complete and will load to tested Ground inverter;
8) carry out the S8 stage of data acquisition: in this stage, computing machine will gather corresponding test data from the program control load of Three-phase high-power;
9) carry out the S9 stage of data operation: in this stage, computing machine carries out computing by the test data of above-mentioned collection;
10) carry out the S10 stage of data display: in this stage, the data after above-mentioned computing are shown by display by computing machine;
11) carry out the S11 stage of data record: in this stage, the data after above-mentioned computing are carried out record with the form of excel form by computing machine;
12) to whether terminating to test the S12 stage judged: if judged result is "Yes", enter next stage, otherwise return the S4 stage;
13) the S13 stage of generating report forms: computing machine is by the data genaration report file after above-mentioned computing;
14) determining program S14 stage of whether exiting: if judged result is "Yes", finish test procedure, otherwise return the S1 stage;
15) to the S15 stage that the parameter of unbalance load calculates: in this stage, computing machine will directly calculate the parameter of unbalance load according to standard-required, and send corresponding steering order by serial communication interface to A, B, C threephase load according to result of calculation, namely enter the S6 stage.
In Ground inverter characteristic provided by the invention, transient characterisitics parameter investigating method comprises the following step carried out in order:
1) to the S16 stage of testing the pickup time of output contactor: in this stage, computing machine by testing the pickup time of output contactor, to determine the start time of transient measuring;
2) the S17 stage of power-factor of load setting is carried out: in this stage, on computer input device, according to test request, the power-factor of load is set as 1 by tester; Again the power-factor of load is set as after test terminates that 0.6 proceeds test;
3) set the S18 stage of tested Ground inverter load percentage: in this stage, when power factor is set as 1 by load from 0 impact to 80% of Ground inverter nominal load; When power factor is set as 0.6 by load from 0 impact to 150% of Ground inverter nominal load;
4) carry out the S19 stage calculated according to setup parameter: in this stage, computing machine calculates according to the power factor of above-mentioned setting and load percentage;
5) send the S20 stage of load steering order: in this stage, computing machine sends corresponding steering order by serial communication interface to A, B, C threephase load according to the result of calculation determined by power factor and load percentage of previous step;
6) send the S21 stage of the instruction that powers on: in this stage, computing machine sends the instruction that powers on of connection to output contactor;
7) in the S22 stage of output contactor adhesive: in this stage, the program control load of Three-phase high-power will load according to above-mentioned steering order, then by reliable for output contactor adhesive, load to Ground inverter;
8) carry out the S23 stage of data acquisition: in this stage, computing machine will gather corresponding test data from the program control load of Three-phase high-power;
9) carry out the S24 stage of data operation: in this stage, the test data that Ground inverter external plug place gathers is carried out computing by computing machine;
10) the S25 stage of data, figure display is carried out: in this stage, the data after above-mentioned computing, figure are shown by display by computing machine; The pickup time of the output contactor calculated in the S18 stage has been deducted herein in the figure shown;
11) carry out the S26 stage of data record: in this stage, the data after above-mentioned computing are carried out record with the form of excel form by computing machine;
12) the S27 stage of generating report forms: computing machine is by the data after above-mentioned computing and graphic hotsopt report file;
13) to whether unloading the S28 stage judged: if judged result is "Yes", enters the S32 stage, otherwise enter next stage;
13) whether program is terminated to the S29 stage judged: if judged result is "Yes", finish test procedure, otherwise return the S17 stage;
14) disconnect the S30 stage of output contactor: in this stage, output contactor is disconnected, then returns the S23 stage.
Ground inverter characteristic test system provided by the invention can not only meet the test request to Ground inverter supplied character in international standard ISO6858 and CAAC MH/T6018, but also there is assessment and analysis function, and system architecture arranges rationally, investigating method is simple, easy to operate, and measuring accuracy is high.
Accompanying drawing explanation
Fig. 1 is that Ground inverter characteristic test system provided by the invention forms schematic diagram.
Fig. 2 is that in Ground inverter characteristic test system provided by the invention, the program control load of Three-phase high-power forms schematic diagram.
Fig. 3 is steady-state characteristic parameter investigating method process flow diagram in Ground inverter characteristic test method provided by the invention.
Fig. 4 is transient characterisitics parameter investigating method process flow diagram in Ground inverter characteristic test method provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, Ground inverter characteristic test system provided by the invention and investigating method are described in detail.
As shown in Figure 1, Ground inverter characteristic test system provided by the invention comprises the program control load 20 of Three-phase high-power, voltage and current signal treatment circuit 21, data collecting card 22 and computing machine 23; Wherein A, B, C and the N phase input end of the program control load 20 of Three-phase high-power are connected with N line with the A phase of Ground inverter 25, B phase, C phase respectively; A, B, C of voltage and current signal treatment circuit 21 and N phase input end are connected with N line with the A phase of Ground inverter 25, B phase, C phase respectively, and its output terminal is connected with the input end of data collecting card 22; The output terminal of data collecting card 22 is connected with computing machine 23, and computing machine 23 is then connected by the program control load 20 of serial communication interface and Three-phase high-power.
Described Ground inverter characteristic test system also comprises the printer 24 be connected with computing machine 23.
As shown in Figure 2, the program control load of described Three-phase high-power 20 is by output contactor 11 identical with three, independent controlled A phase, B phase and C phase load are formed, to meet the setting of unbalance load, output contactor 11 is connected to Ground inverter 25 and A phase, B phase, between C phase load, every phase load is by electric resistance array 2, electric inductance array 4, resistance contactor array 1, inductance contactor array 3, resistance controls, inductance control single chip computer 7, 8 and voltage signal conditioning circuit 9 form, wherein the output terminal of output contactor 11 is connected with inductance contactor array 3 with resistance contactor array 1 simultaneously, resistance contactor array 1 is connected with electric resistance array 2 and electric inductance array 4 respectively with inductance contactor array 3, resistance control single chip computer 7 is connected with resistance contactor array 1 by resistance control and drive system 5, inductance control single chip computer 8 is connected with inductance contactor array 3 by inductance control and drive system 6, resistance controls, inductance control single chip computer 7, is then connected by computer serial communication interface 12 between 8, voltage signal conditioning circuit 9 is connected between output contactor 11 and resistance control single chip computer 7, electric resistance array 2 is made up of 16 resistance, electric inductance array 4 is made up of 16 inductance, employing digital form combines, step-length 10W or 10VAR, resistance contactor array 1 is made up of 16 corresponding with 16 resistance in electric resistance array 2 respectively resistance contactors, and inductance contactor array 3 is made up of 16 corresponding with 16 inductance in electric inductance array 4 respectively inductance contactors.
The power factor of the program control load 20 of described Three-phase high-power is 0.6-1, load is from 0 to fully loaded, control accuracy is 1%, ISO6858 and MH/T6018 standard can be met to power factor command, for carrying out Steady state and transient state (load switching) load test of Ground inverter 25.
Described data collecting card 22 adopts National Instruments (NI) high-speed data acquisition card, for the high speed acquisition of data.
Described computing machine 23 adopts industrial control computer, is provided with LABVIEW programming software and corresponding hardware driver software in it.
Now Ground inverter characteristic test system principle of work provided by the invention is described below:
According to ISO6858 international standard and CAAC MH/T6018 standard, Ground inverter 25 needs to carry out Steady state and transient state characteristic test, wherein steady-state characteristic test event comprises three-phase voltage, electric current, active power, reactive power, power factor (PF), frequency, phase place symmetry, balance of voltage degree, the voltage modulated amount under unloaded and various loading condition, crest factor, waveform distortion (total harmonic distortion) and maximum single harmonic wave; Transient characterisitics test event comprises the mutually the most serious and wave time of the response of voltage and frequency, electric voltage frequency extreme cases, fluctuation.
When needs carry out steady-state characteristic test, first on the input media of computing machine 23, the power-factor of load and power is set according to test request by tester, when needs measure balanced load under stable state, first the power-factor of load and power are set as 1 and 0.8 respectively, then computing is carried out by computing machine 23, and generate A phase, the result of resistance and inductor combination in B phase and C phase load, send 6 single-chip microcomputers in the program control load 20 of Three-phase high-power respectively to, by single-chip microcomputer through driver and 16 resistance contactors, 16 inductance contactors are switched on or switched off corresponding resistance and inductance, after load configuration is good, computing machine 23 will send instruction, connect the output contactor 11 in the program control load 20 of Three-phase high-power, to connect threephase load, at this moment system is measured starting, and demonstrate load parameter over the display, whether correctly monitor load set simultaneously.Measurement parameter has three-phase voltage, electric current, active power, reactive power, applied power, power factor and voltage waveform.When needs measure unbalance load under stable state, first the power-factor of load is set as 1 and 0.8 respectively, A phase is 40% of nominal load, other two-phases are 30% of nominal load, then computing is carried out by computing machine 23, and generate A phase, the result of B phase and C phase resistance and inductor combination, give 6 single-chip microcomputers in the program control load 20 of Three-phase high-power respectively, by single-chip microcomputer through driver and 16 resistance contactors, 16 inductance contactors are switched on or switched off corresponding resistance and inductance, after load configuration is good, computing machine 23 will send instruction, connect the output contactor 11 in the program control load 20 of Three-phase high-power, to connect threephase load, at this moment system is measured starting, and demonstrate load parameter over the display, whether correctly monitor load set simultaneously.Measurement parameter has three-phase voltage, frequency, phase place, balance of voltage degree, voltage modulated amount, crest factor, harmonic measure analysis, waveform distortion (total harmonic distortion) and maximum single harmonic wave.
When needs test transient characterisitics parameter, first test the pickup time of output contactor 11, to determine the start time of transient measuring, afterwards the power-factor of load is set as 1, load from 0 impact to 80% of Ground inverter nominal load, then from 80% anticlimax to 0.Measure and record: the response of voltage and frequency, electric voltage frequency extreme cases, the most serious phase of fluctuation, the parameters such as wave time.Finally the power-factor of load is set as 0.6 (delayed), load from 0 impact to 150% of Ground inverter nominal load, then from 150% anticlimax to 0.Measure and record: the response of voltage and frequency, electric voltage frequency extreme cases, the most serious phase of fluctuation, the parameters such as wave time.
Test rear system and automatically generated the form meeting MH/T6018 and require, and qualified and underproof test event has been described, export all test results by printer 24 simultaneously.
As shown in Figure 3, in Ground inverter characteristic test method provided by the invention, steady-state characteristic parameter investigating method comprises the following step carried out in order:
1) carry out the S1 stage of power-factor of load setting: in this stage, on the input media of computing machine 23, set the power-factor of load according to test request by tester;
2) to the tested Ground inverter S2 stage whether no load test judges: if judged result is "No", enter next stage, otherwise enter the S8 stage;
3) whether it is the S3 stage that balanced load judges to the loading of tested Ground inverter institute: namely setting Ground inverter 25 is balanced load test or asymmetric load test, if judged result is "Yes", enter next stage, otherwise enter the S15 stage;
4) the S4 stage of load percentage is set: in this stage, being set gradually by load percentage under the power factor of above-mentioned setting is 25%, 50%, 75%, 100%, 75%, 50% and 25%, and test terminates rear change power factor and proceeds test;
5) carry out the S5 stage calculated according to setup parameter: in this stage, computing machine 23 calculates according to the power factor of above-mentioned setting and load percentage;
6) send the S6 stage of load steering order: in this stage, computing machine 23 sends corresponding steering order by serial communication interface to A, B, C threephase load according to the result of calculation of previous step, to carry out the load preparatory stage;
7) in the S7 stage of output contactor adhesive: in this stage, the program control load of Three-phase high-power 20 will load according to above-mentioned steering order, then by reliable for output contactor 11 adhesive, complete and will load to tested Ground inverter 25;
8) carry out the S8 stage of data acquisition: in this stage, computing machine 23 will gather corresponding test data from the program control load of Three-phase high-power 20;
9) carry out the S9 stage of data operation: in this stage, computing machine 23 carries out computing by the test data of above-mentioned collection;
10) carry out the S10 stage of data display: in this stage, the data after above-mentioned computing are shown by display by computing machine 23;
11) carry out the S11 stage of data record: in this stage, the data after above-mentioned computing are carried out record with the form of excel form by computing machine 23;
12) to whether terminating to test the S12 stage judged: if judged result is "Yes", enter next stage, otherwise return the S4 stage;
13) the S13 stage of generating report forms: computing machine 23 is by the data genaration report file after above-mentioned computing;
14) determining program S14 stage of whether exiting: if judged result is "Yes", finish test procedure, otherwise return the S1 stage;
15) to the S15 stage that the parameter of unbalance load calculates: in this stage, computing machine 23 will directly calculate the parameter of unbalance load according to standard-required, and send corresponding steering order by serial communication interface to A, B, C threephase load according to result of calculation, namely enter the S6 stage.
As shown in Figure 4, in Ground inverter characteristic test method provided by the invention, transient characterisitics parameter investigating method comprises the following step carried out in order:
1) to the S16 stage of testing the pickup time of output contactor: in this stage, computing machine 23 by testing the pickup time of output contactor 11, to determine the start time of transient measuring;
2) carry out the S17 stage of power-factor of load setting: in this stage, on the input media of computing machine 23, according to test request, the power-factor of load is set as 1 by tester; Again the power-factor of load is set as after test terminates that 0.6 proceeds test;
3) set the S18 stage of tested Ground inverter load percentage: in this stage, when power factor is set as 1 by load from 0 impact to 80% of Ground inverter nominal load; When power factor is set as 0.6 by load from 0 impact to 150% of Ground inverter nominal load;
4) carry out the S19 stage calculated according to setup parameter: in this stage, computing machine 23 calculates according to the power factor of above-mentioned setting and load percentage;
5) send the S20 stage of load steering order: in this stage, computing machine 23 sends corresponding steering order by serial communication interface to A, B, C threephase load according to the result of calculation determined by power factor and load percentage of previous step;
6) send the S21 stage of the instruction that powers on: in this stage, computing machine 23 sends the instruction that powers on of connection to output contactor 11;
7) in the S22 stage of output contactor adhesive: in this stage, the program control load of Three-phase high-power 20 will load according to above-mentioned steering order, then by reliable for output contactor 11 adhesive, load to Ground inverter;
8) carry out the S23 stage of data acquisition: in this stage, computing machine 23 will gather corresponding test data from the program control load of Three-phase high-power 20;
9) carry out the S24 stage of data operation: in this stage, the test data that Ground inverter 25 external plug place (the plug place that Ground inverter 25 connects with load) gathers is carried out computing by computing machine 23;
10) the S25 stage of data, figure display is carried out: in this stage, the data after above-mentioned computing, figure are shown by display by computing machine 23; The pickup time of the output contactor 11 calculated in the S18 stage has been deducted herein in the figure shown;
11) carry out the S26 stage of data record: in this stage, the data after above-mentioned computing are carried out record with the form of excel form by computing machine 23;
12) the S27 stage of generating report forms: computing machine 23 is by the data after above-mentioned computing and graphic hotsopt report file;
13) to whether unloading the S28 stage judged: if judged result is "Yes", enters the S32 stage, otherwise enter next stage;
13) whether program is terminated to the S29 stage judged: if judged result is "Yes", finish test procedure, otherwise return the S17 stage;
14) the S30 stage of output contactor is disconnected: in this stage, disconnected by output contactor 11, then return the S23 stage.
Claims (3)
1. a Ground inverter characteristic test system, described Ground inverter characteristic test system comprises the program control load of Three-phase high-power (20), voltage and current signal treatment circuit (21), data collecting card (22) and computing machine (23), wherein A, B, C and the N phase input end of the program control load of Three-phase high-power (20) are connected with N line with the A phase of Ground inverter (25), B phase, C phase respectively, A, B, C of voltage and current signal treatment circuit (21) and N phase input end are connected with N line with the A phase of Ground inverter (25), B phase, C phase respectively, and its output terminal is connected with the input end of data collecting card (22), the output terminal of data collecting card (22) is connected with computing machine (23), and computing machine (23) is then connected by the program control load of serial communication interface and Three-phase high-power (20), it is characterized in that: the program control load of described Three-phase high-power (20) is by output contactor (11) identical with three, independent controlled A phase, B phase and C phase load are formed, output contactor (11) is connected to Ground inverter (25) and A phase, B phase, between C phase load, every phase load is by electric resistance array (2), electric inductance array (4), resistance contactor array (1), inductance contactor array (3), resistance control single chip computer and inductance control single chip computer (7, 8) and voltage signal conditioning circuit (9) composition, wherein the output terminal of output contactor (11) is connected with inductance contactor array (3) with resistance contactor array (1) simultaneously, resistance contactor array (1) is connected with electric resistance array (2) and electric inductance array (4) respectively with inductance contactor array (3), resistance control single chip computer (7) is connected with resistance contactor array (1) by resistance control and drive system (5), inductance control single chip computer (8) is connected with inductance contactor array (3) by inductance control and drive system (6), resistance control single chip computer and inductance control single chip computer (7,8) are connected with computer serial communication interface (12), voltage signal conditioning circuit (9) is connected between output contactor (11) and resistance control single chip computer (7), electric resistance array (2) is made up of 16 resistance, electric inductance array (4) is made up of 16 inductance, resistance contactor array (1) is made up of 16 corresponding with 16 resistance in electric resistance array (2) respectively resistance contactors, and inductance contactor array (3) is made up of 16 corresponding with 16 inductance in electric inductance array (4) respectively inductance contactors.
2. utilize a steady-state characteristic parameter investigating method for the Ground inverter characteristic test system described in claim 1, it is characterized in that: described investigating method comprises the following step carried out in order:
1) carry out the S1 stage of power-factor of load setting: in this stage, on the input media of computing machine (23), set the power-factor of load according to test request by tester;
2) to the tested Ground inverter S2 stage whether no load test judges: if judged result is "No", enter next stage, otherwise enter the S8 stage;
3) whether it is the S3 stage that balanced load judges to the loading of tested Ground inverter institute: namely setting Ground inverter (25) is balanced load test or asymmetric load test, if judged result is "Yes", enter next stage, otherwise enter the S15 stage;
4) the S4 stage of load percentage is set: in this stage, being set gradually by load percentage under the power factor of above-mentioned setting is 25%, 50%, 75%, 100%, 75%, 50% and 25%, and test terminates rear change power factor and proceeds test;
5) carry out the S5 stage calculated according to setup parameter: in this stage, computing machine (23) calculates according to the power factor of above-mentioned setting and load percentage;
6) send the S6 stage of load steering order: in this stage, computing machine (23) sends corresponding steering order by serial communication interface to A, B, C threephase load according to the result of calculation of previous step, to carry out the load preparatory stage;
7) the S7 stage of output contactor adhesive: in this stage, the program control load of Three-phase high-power (20) will load according to above-mentioned steering order, then by reliable for output contactor (11) adhesive, complete and load to tested Ground inverter (25);
8) carry out the S8 stage of data acquisition: in this stage, computing machine (23) will gather corresponding test data from the program control load of Three-phase high-power (20);
9) carry out the S9 stage of data operation: in this stage, computing machine (23) carries out computing by the test data of above-mentioned collection;
10) carry out the S10 stage of data display: in this stage, the data after above-mentioned computing are shown by display by computing machine (23);
11) carry out the S11 stage of data record: in this stage, the data after above-mentioned computing are carried out record with the form of excel form by computing machine (23);
12) to whether terminating to test the S12 stage judged: if judged result is "Yes", enter next stage, otherwise return the S4 stage;
13) the S13 stage of generating report forms: computing machine (23) is by the data genaration report file after above-mentioned computing;
14) determining program S14 stage of whether exiting: if judged result is "Yes", finish test procedure, otherwise return the S1 stage;
15) to the S15 stage that the parameter of unbalance load calculates: in this stage, computing machine (23) will directly calculate the parameter of unbalance load according to standard-required, and send corresponding steering order by serial communication interface to A, B, C threephase load according to result of calculation, namely enter the S6 stage.
3. utilize a transient characterisitics parameter investigating method for the Ground inverter characteristic test system described in claim 1, it is characterized in that: described investigating method comprises the following step carried out in order:
1) to the S16 stage of testing the pickup time of output contactor: in this stage, computing machine (23) by testing the pickup time of output contactor (11), to determine the start time of transient measuring;
2) carry out the S17 stage of power-factor of load setting: in this stage, on the input media of computing machine (23), according to test request, the power-factor of load is set as 1 by tester; Again the power-factor of load is set as after test terminates that 0.6 proceeds test;
3) set the S18 stage of tested Ground inverter load percentage: in this stage, when power factor is set as 1 by load from 0 impact to 80% of Ground inverter nominal load; When power factor is set as 0.6 by load from 0 impact to 150% of Ground inverter nominal load;
4) carry out the S19 stage calculated according to setup parameter: in this stage, computing machine (23) calculates according to the power factor of above-mentioned setting and load percentage;
5) send the S20 stage of load steering order: in this stage, computing machine (23) sends corresponding steering order by serial communication interface to A, B, C threephase load according to the result of calculation determined by power factor and load percentage of previous step;
6) send the S21 stage of the instruction that powers on: in this stage, computing machine (23) sends the instruction that powers on of connection to output contactor (11);
7) the S22 stage of output contactor adhesive: in this stage, the program control load of Three-phase high-power (20) will load according to above-mentioned steering order, then by reliable for output contactor (11) adhesive, load to Ground inverter (25);
8) carry out the S23 stage of data acquisition: in this stage, computing machine (23) will gather corresponding test data from the program control load of Three-phase high-power (20);
9) carry out the S24 stage of data operation: in this stage, the test data that Ground inverter (25) external plug place gathers is carried out computing by computing machine (23);
10) the S25 stage of data, figure display is carried out: in this stage, the data after computing, figure are shown by display by computing machine (23); The pickup time of the output contactor (11) calculated in the S16 stage has been deducted herein in the figure shown;
11) carry out the S26 stage of data record: in this stage, the data after above-mentioned computing are carried out record with the form of excel form by computing machine (23);
12) the S27 stage of generating report forms: computing machine (23) is by the data after computing and graphic hotsopt report file;
13) to whether unloading the S28 stage judged: if judged result is "Yes", enters the S30 stage, otherwise enter next stage;
14) whether program is terminated to the S29 stage judged: if judged result is "Yes", finish test procedure, otherwise return the S17 stage;
15) disconnect the S30 stage of output contactor: in this stage, output contactor (11) is disconnected, then returns the S23 stage.
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| CN105223443A (en) * | 2015-10-19 | 2016-01-06 | 北京经纬恒润科技有限公司 | A kind of hardware automated method of testing, system and equipment |
| CN106772116B (en) * | 2016-11-28 | 2019-02-15 | 北京卫星制造厂 | A kind of Auto-Test System for aerospace satellite secondary power supply |
| CN106771766A (en) * | 2017-01-05 | 2017-05-31 | 上海富崇电子科技有限公司 | Airborne electrical equipment supplied character pilot system |
| CN110994775B (en) * | 2019-11-26 | 2021-05-11 | 中国航天时代电子有限公司 | Intelligent power supply switching method considering load characteristics |
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| JP2008104344A (en) * | 2001-08-27 | 2008-05-01 | Shinko Electric Co Ltd | Inverter test device |
| CN101587138A (en) * | 2009-06-30 | 2009-11-25 | 朱晓明 | A kind of control system of load box |
| CN201812000U (en) * | 2009-11-12 | 2011-04-27 | 张进滨 | Detecting device for ACLT grid-connected inverter |
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| US7439753B2 (en) * | 2005-11-23 | 2008-10-21 | Zippy Technology Corp. | Inverter test device and a method thereof |
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| CN201812000U (en) * | 2009-11-12 | 2011-04-27 | 张进滨 | Detecting device for ACLT grid-connected inverter |
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