CN105403792A - Solid state power distribution device reset function testing system and testing method - Google Patents
Solid state power distribution device reset function testing system and testing method Download PDFInfo
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- CN105403792A CN105403792A CN201510909589.1A CN201510909589A CN105403792A CN 105403792 A CN105403792 A CN 105403792A CN 201510909589 A CN201510909589 A CN 201510909589A CN 105403792 A CN105403792 A CN 105403792A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention discloses a solid state power distribution device reset function testing system and a testing method, and belongs to the testing technology field. The testing system comprises a power supply, a measurement and control computer, and an interface box. The power supply can be used to supply the solid state power distribution device with the working power supply and the power input power supply. The measurement and control computer can be used to send control commands to the solid state power distribution device in order to control switching on/off of power channels. The measurement and control computer is also connected with an electronic load, which is used to transmit rated current setting commands. The input end of the interface box is connected with any power channel, and the output end of the interface box is connected with the electronic load. Under the control of the measurement and control computer, the input end of the interface box can be communicated with the power channels of the solid state power distribution device. The measurement and control computer can be used to control the current of the electronic load and the connection relation between the power channels and the interface box. All power channel reset function test of the solid state power distribution device can be completed by using one load, and the automation degree is high, and the testing efficiency is high.
Description
Technical field
The invention belongs to technical field of measurement and test, be specifically related to a kind of solid state distribution device reset function test macro and method of testing.
Background technology
Solid state distribution device is a kind of power distribution equipment based on solid state distribution technology and computer generalization control technology, realizes the intelligent management of distribution system by detecting power distribution system information.Solid state distribution device forms primarily of CPU module, Signal-regulated kinase and multiple solid-state power controller passage.
Before solid state distribution device is delivered for use, reset function test must be carried out by the solid-state power controller passage all to its inside, to confirm that solid-state power controller passage can reclose after tripping.
Common solid state distribution device reset function test macro has two kinds:
The first, for the power channels of solid state distribution device each needs test inner is equipped with a road load, see accompanying drawing 1.The advantage of this test macro is simple, reliable, and shortcoming is that solid state distribution device internal power number of channels is more, and the load number that system needs is more, and purchase cost is high.
The second, whole test macro is only equipped with the load much smaller than surveyed solid state distribution rating of set number of channels of a road or load number.During test, often test a power channels, tester reconnects a circuit between power channels and load.This test macro advantage is that system working load quantity is few, purchase cost is low, and shortcoming tester workload is large, tests the length that expends time in.
Summary of the invention
In order to solve the problem, in use one road or load number much smaller than under the loading condition of surveyed solid state distribution rating of set number of channels, often test a power channels, not needing tester to reconnect a circuit between power channels and load.For this reason, the invention provides a kind of solid state distribution device reset function test macro and method of testing.
First aspect present invention provides a kind of solid state distribution device reset function test macro, and the solid state distribution device with multiple power channels is carried out to the test of reset function, it comprises:
Power supply, connects described solid state distribution device, for described solid state distribution device provides working power and power input power;
Measurement &control computer, connect described solid state distribution device, the state of the power channels of solid state distribution device is stated to described solid state distribution device sending controling instruction and reception, described steering order comprises the switch of the power channels controlling described solid state distribution device, described Measurement &control computer also connects electronic load, sends rated current arrange instruction to described electronic load;
Interface box, input end connects arbitrary power channels of described solid state distribution device, and output terminal connects described electronic load, and wherein, the input end controlling described interface box by described Measurement &control computer connects the power channels of described solid state distribution device.
Preferably, described testing and control computing machine is connected with the CAN interface of described solid state distribution device by CAN interface card.
In such scheme preferably, described interface box comprises relay and contactor, and described relay is controlled by described Measurement &control computer, and can drive described contactor, one end of described contactor connects the output terminal of described interface box, and the other end can the arbitrary power channels of selective exposure.
In such scheme preferably, be connected by discrete magnitude control line between described interface box with described Measurement &control computer.
In such scheme preferably, described Measurement &control computer is provided with the pci card that discrete magnitude exports, and the output interface quantity of described pci card is not less than the quantity of power channels.
The present invention another aspect provides the test of a kind of solid state distribution device reset function, adopts the solid state distribution device reset function test macro described in above-mentioned any one to test, comprises the following steps:
Step one, arrange load current value, the size of described load current value can make solid state distribution device transship after power channels is connected;
Step 2, by interface box, power channels to be tested for solid state distribution device to be connected with electronic load;
Step 3, make described power channels work to be tested, until described power channels to be tested sends overload;
Step 4, load current value is set to the power channels to be tested in step 3 ratings within;
Step 5, transmission reset instruction, check whether described solid state distribution device resets successfully.
Preferably, in described step one, the size of described load current value is solid state distribution device 2 times of this power channels rated current when power channels is connected.
The invention has the advantages that:
The input end come by interface box carrys out a certain power channels of selectivity access solid state distribution device, its output terminal is unified is connected to electronic load, and, the right to choose of the input end connection power channels of interface box is controlled by Measurement &control computer, simultaneously, Measurement &control computer also controls the power path switch of described solid state distribution device, like this, use a load can complete the whole power channels reset function test of solid state distribution device, and have the advantages that automaticity is high, testing efficiency is high, purchase low cost.
Accompanying drawing explanation
Fig. 1 is solid state distribution device reset function proving installation structural representation in prior art.
Fig. 2 is the structural representation of a preferred embodiment of solid state distribution device reset function test macro of the present invention.
Fig. 3 is interface box principle schematic embodiment illustrated in fig. 2.
Embodiment
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Task of the present invention is in use one road or load number much smaller than under the loading condition of surveyed solid state distribution rating of set number of channels, often tests a power channels, does not need tester to reconnect a circuit between power channels and load.For this reason, the invention provides a kind of solid state distribution device reset function test macro and method of testing.
First aspect present invention provides a kind of solid state distribution device reset function test macro, the solid state distribution device with multiple power channels is carried out to the test of reset function, it comprises power supply, testing and control computing machine, special purpose interface box and electronic load composition, wherein
Power supply, connects described solid state distribution device, for described solid state distribution device provides working power and power input power;
Measurement &control computer, connect described solid state distribution device, the state of the power channels of solid state distribution device is stated to described solid state distribution device sending controling instruction and reception, described steering order comprises the switch of the power channels controlling described solid state distribution device, described Measurement &control computer also connects electronic load, sends rated current arrange instruction to described electronic load;
Interface box, input end connects arbitrary power channels of described solid state distribution device, and output terminal connects described electronic load, and wherein, the input end controlling described interface box by described Measurement &control computer connects the power channels of described solid state distribution device.
It should be noted that, testing and control computing machine is connected with electronic load by bus, while arranging instruction, also comprises reception electronic load rated current and arranges result to electronic load transmission electronic load rated current.Special purpose interface box power input interface quantity is identical with solid state distribution rating of set output interface quantity.Multiple power stage passages of special purpose interface box (many) individual power input channel adaptation and solid state distribution device.Special purpose interface box has a power stage interface.Special purpose interface box is inner, and synchronization only has a power input interface to be connected with power stage interface.Special purpose interface box power stage interface is connected with electronic load.
In the present embodiment, described testing and control computing machine is connected with the CAN interface of described solid state distribution device by CAN interface card.
Described interface box comprises relay and contactor, and described relay is controlled by described Measurement &control computer, and can drive described contactor, and one end of described contactor connects the output terminal of described interface box, and the other end can the arbitrary power channels of selective exposure.As an alternate embodiment of the present embodiment, as shown in Figure 3, also comprise a bus-bar, described bus-bar selects an interface from multiple power input interface, connects power stage interface.Namely one end of contactor connects bus-bar, and other end selective exposure power channels, the bus-bar other end is the output terminal of interface box.Examination computer for controlling is connected with special purpose interface box by discrete magnitude control line, by discrete magnitude interface, the relay in special purpose interface box is driven, carry out drived control by relay to contactor, realizing synchronization only has a power channels to be connected with electronic load.
The present invention another aspect provides the test of a kind of solid state distribution device reset function, adopts the solid state distribution device reset function test macro described in above-mentioned any one to test, comprises the following steps:
Step one, arrange load current value, the size of described load current value can make solid state distribution device transship, with simulated power channel overload process after power channels is connected;
Step 2, by interface box, power channels to be tested for solid state distribution device to be connected with electronic load, namely on testing and control computing machine, to send instruction to special purpose interface box, solid state distribution device power channels to be tested is connected with electronic load;
Step 3, make described power channels work to be tested, until described power channels to be tested sends overload, namely testing and control computing machine sends instruction, connect power channels, electric current arrives electronic load from power power-supply by power channels, and after a period of time, power channels is transshipped;
Step 4, load current value is set to the power channels to be tested in step 3 ratings within, namely after testing and control computing machine receives power channels overload, within electronic load current value is set to power channels ratings, wait for solid state distribution rating of set channel reset;
Step 5, transmission reset instruction, check whether described solid state distribution device resets successfully, whether reset instruction is issued solid state distribution device by bus by testing and control computing machine, reset and the power channels of overload occurs, and observe on testing and control computing machine and resetting successfully.
It should be noted that, in described step one, the size of described load current value is solid state distribution device 2 times of this power channels rated current when power channels is connected.
Below above-mentioned method of testing is illustrated.
Suppose to need the solid state distribution device carrying out reset function test to have 60 direct current 28V power channels.Passage 1 to passage 20 load current value is 3A; Passage 21 to passage 40 load current value is 5A, and passage 41 to passage 60 load current value is 10A.Solid state distribution device communication bus is CAN.
See Fig. 2.Solid state distribution device reset function test macro is made up of power supply, testing and control computing machine, special purpose interface box and an electronic load.Power supply selects 28V high-power DC power supply; The industrial computer with pci card groove selected by testing and control computing machine, is equipped with one piece of pci card being no less than 60 road discrete magnitudes and exporting, one piece of CAN interface card; Special purpose interface box needs custom-made, and inside is made up of relay, contactor and bus-bar; Electronic load should be able to analog DC 28V load, and rated current should be able to reach 20A.
Power supply is connected with solid state distribution device by cable, for solid state distribution device provides working power and power power-supply.
Testing and control computing machine is connected with the CAN interface of solid state distribution device by CAN interface card, to solid state distribution device transmitted power passage steering order (being switched on or switched off), from solid state distribution device received power channel status (on-off, overload etc.).Testing and control computing machine is connected with electronic load by bus, sends electronic load current and arranges instruction, receives electronic load current and arranges result.Testing and control computing machine is connected with special purpose interface box by discrete magnitude control line, by discrete magnitude interface, the relay in special purpose interface box is driven, carry out drived control by relay to contactor, realizing synchronization only has a power channels to be connected with electronic load.
See accompanying drawing 3, special purpose interface box input interface quantity N corresponding to present embodiment equals 60.Special purpose interface box has 60 power input interfaces, a power stage interface.Synchronization only has a power input interface to be connected with power stage interface.60 power input interfaces, connect 60 power stage passages of solid state distribution device respectively; Power stage interface, connects electronic load.
Electronic load has bus interface, and testing and control computing machine carries out the setting of load rating current value by bus.
Take load current value as the power channels 1 of 3A be example, test process is described.
Step 1, electronic load current value is set to the 6A of power channels 1 ratings by testing and control computing machine, simulated power passage 1 overload.
Step 2, is connected power channels to be tested for solid state distribution device with electronic load by special purpose interface box
On testing and control computing machine, instruction is sent to special purpose interface box by discrete magnitude pci card, drive the relay in special purpose interface box, again by the contactor of relay driving power passage 1 correspondence in special purpose interface box, contacts of contactor closes, and solid state distribution device power channels to be tested is connected with electronic load;
Step 3, testing and control computing machine sends steering order by CAN, and connect power channels 1, electric current from power source arrives electronic load by power channels 1.After a period of time, power channels 1 is transshipped.
Step 4, after testing and control computing machine receives power channels 1 overload, is set to power channels 1 ratings by bus by electronic load current value.
Step 5, whether reset instruction is issued solid state distribution device by CAN by testing and control computing machine, reset powers passage 1, and observe on testing and control computing machine and resetting successfully.
The test of power channels 2 to power channels 60, similar with power channels 1 test process.
The invention has the advantages that:
The input end come by interface box carrys out a certain power channels of selectivity access solid state distribution device, its output terminal is unified is connected to electronic load, and, the right to choose of the input end connection power channels of interface box is controlled by Measurement &control computer, simultaneously, Measurement &control computer also controls the power path switch of described solid state distribution device, like this, use a load can complete the whole power channels reset function test of solid state distribution device, and have the advantages that automaticity is high, testing efficiency is high, purchase low cost.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a solid state distribution device reset function test macro, carries out the test of reset function, it is characterized in that, comprising to the solid state distribution device with multiple power channels:
Power supply, connects described solid state distribution device, for described solid state distribution device provides working power and power input power;
Measurement &control computer, connect described solid state distribution device, the state of the power channels of solid state distribution device is stated to described solid state distribution device sending controling instruction and reception, described steering order comprises the switch of the power channels controlling described solid state distribution device, described Measurement &control computer also connects electronic load, sends rated current arrange instruction to described electronic load;
Interface box, input end connects arbitrary power channels of described solid state distribution device, and output terminal connects described electronic load, and wherein, the input end controlling described interface box by described Measurement &control computer connects the power channels of described solid state distribution device.
2. solid state distribution device reset function test macro as claimed in claim 1, is characterized in that: described testing and control computing machine is connected with the CAN interface of described solid state distribution device by CAN interface card.
3. solid state distribution device reset function test macro as claimed in claim 1, it is characterized in that: described interface box comprises relay and contactor, described relay is controlled by described Measurement &control computer, and can described contactor be driven, one end of described contactor connects the output terminal of described interface box, and the other end can the arbitrary power channels of selective exposure.
4. solid state distribution device reset function test macro as claimed in claim 1, be is characterized in that: be connected by discrete magnitude control line between described interface box with described Measurement &control computer.
5. solid state distribution device reset function test macro as claimed in claim 4, is characterized in that: described Measurement &control computer is provided with the pci card that discrete magnitude exports, and the output interface quantity of described pci card is not less than the quantity of power channels.
6. a solid state distribution device reset function test, is characterized in that: adopt the solid state distribution device reset function test macro according to any one of claim 1-4 to test, comprising:
Step one, arrange load current value, the size of described load current value can make solid state distribution device transship after power channels is connected;
Step 2, by interface box, power channels to be tested for solid state distribution device to be connected with electronic load;
Step 3, make described power channels work to be tested, until described power channels to be tested sends overload;
Step 4, load current value is set to the power channels to be tested in step 3 ratings within;
Step 5, transmission reset instruction, check whether described solid state distribution device resets successfully.
7. solid state distribution device reset function method of testing as claimed in claim 6, is characterized in that: in described step one, and the size of described load current value is solid state distribution device 2 times of this power channels rated current when power channels is connected.
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