CN100406899C - Apparatus for testing electric power system - Google Patents
Apparatus for testing electric power system Download PDFInfo
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- CN100406899C CN100406899C CN031592643A CN03159264A CN100406899C CN 100406899 C CN100406899 C CN 100406899C CN 031592643 A CN031592643 A CN 031592643A CN 03159264 A CN03159264 A CN 03159264A CN 100406899 C CN100406899 C CN 100406899C
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Abstract
The present invention relates to a device for testing electric power systems. The device of the present invention comprises an abnormity simulating control module, and a main control module, wherein the main control module is used for controlling the abnormity simulating control module and providing change combinations of various abnormity simulating control modules; primary power source is input to the corresponding abnormity simulating control module; under the control of the main control module, the abnormity simulating control module processes the input primary power source and outputs secondary power sources to a tested system. The multi power source combination abnormity and tolerance limit testing device is a testing tool which has multiway power output, and can simulate power supply abnormity and can control the abnormity of multiway power sources in a combined way; the present invention can be used for testing the stability and the fault tolerance limit of hardware systems to verify the resistance power of a system circuit for the discreteness of the performance of a power supply system, and the stability and the safety of the hardware system when multiway power sources simultaneously generate multiway or multiple kinds of abnormal phenomena.
Description
Technical field
The present invention relates to the electric power system measuring technology, refer to a kind of power supply analogue means of testing usefulness especially.
Background technology
In communication system, because various chips are different to the specification requirement of power supply, so on same veneer, can use multiple different power supply to satisfy the requirement of various chips.Can move with security and stability for guaranteeing communication system, it is very important that described various power supplys are tested, but since various power supplys between partial failure, local anomaly, the startup order variation of closing, pressure reduction variation etc., can both produce very large influence to the stability and the security of communication system, so the difficulty that power supply is tested is bigger.
In existing measuring technology, can only carry out unusual simulation test to the communication system that loads single power supply, as to power on or down the slow degree of electricity simulate, under-voltage or overvoltage simulated etc.
Obviously, there are many shortcomings in above-mentioned prior art, mainly comprises:
Though 1 can carry out simulation test to a road independent power supply, can't accomplish simultaneously multiple power supplies to be tested;
2,, thereby can't realize that the local power down of system under test (SUT), local overvoltage/undervoltage is unusual, electrifying timing sequence is unusual etc. is related to the project that needs a plurality of power supplys to act on simultaneously or ANOMALOUS VARIATIONS takes place simultaneously to be tested owing to only one road power supply is carried out fault simulation;
3, the function of not testing at secondary power supply real-time voltage or electric current and the function of simulation system under test (SUT) load changing;
4, only realize the unusual simulation of single power supply, thereby in the test at multi-power system, testing efficiency is very low.
Technology contents
The invention provides a kind of power supply analogue means of testing usefulness, can not load the shortcoming that multiple power supplies is tested simultaneously to overcome existing measuring technology.
For addressing the above problem, the invention provides following technical scheme:
A kind of power supply analogue means of testing usefulness, include: a plurality of unusual simulation control modules, main control module, wherein, described main control module is used for described unusual simulation control module is controlled and provided the variation combination of various unusual simulation control modules; Primary power source inputs to corresponding unusual simulation control module, and under the control of main control module, this is simulated control module unusually the primary power source of input is handled, and exports secondary power supply to system under test (SUT).
This device also further comprises: the Programmable and Variable load blocks is used to provide variable load.
Import this Programmable and Variable load blocks from the control signal of described main control module, the required variable load of this Programmable and Variable load blocks output is connected to system under test (SUT), and it is made up of the Programmable and Variable load board that several are applicable to different electrical power.
Described main control module links to each other with the backstage control computer, to receive pre-set test procedure.
Described unusual simulation control module is used to provide the unusual analog controlling unit plate of different common voltage values to form by several, and different norm is intended the control module plate and further comprised:
The programmable power supply module is used to provide the output voltage of different size;
The prestrain circuit module is used to make described programmable power supply module still can keep normal voltage output when the system under test (SUT) underload;
Digital-to-analog conversion and adjusting module are used for the output voltage of described programmable power supply module is carried out gradual control, the control of stack ripple, overvoltage/undervoltage control;
The hit control module is used for that out-put supply to described programmable power supply module carries out instantaneous interruption or moment is fallen control;
Micro controller module is used to control above-mentioned each module.
Described unusual simulation control module can also comprise EMI (the Electromagnetic Interference: electromagnetic interference (EMI)) filtration module and the voltage and current measurement module that is used for real-time measuring voltage current value that is used for primary power source is carried out filtering.
Described Programmable and Variable load board further includes the microcontroller that is used to control and is used to realize capacitance-resistance matrix and program-controlled relay or the field effect transistor or the electronic switch matrix of variable load, this microcontroller is controlled described relay or field effect transistor or electronic switch matrix under the effect of described main control module, under the different switching combining control of this relay or field effect transistor or electronic switch matrix, described capacitance-resistance matrix produces corresponding combination and exports the variable load that can link to each other with system under test (SUT).
Described Programmable and Variable load board is meant the Programmable and Variable load board that is applicable to primary power source and is applicable in two kinds of the Programmable and Variable load board of secondary power supply one or both.
This device also includes the primary power source on-off controller that is used to realize primary power source hit function.
A kind of power supply analogue means of testing usefulness provided by the invention, it satisfies the tested system of many power supplys to power supply adaptability and fault-tolerant by controlling a plurality of power control unit modules with unusual analog functuion, the characteristic examination of tolerance limit; The unusual analog controlling unit plate of various magnitudes of voltage is by the cooperation control of certain way, can finish the simulation that the local power down of system under test (SUT) or local voltage are departed from, power-on and power-off order, the slow degree of power-on and power-off, the simulation of power-on and power-off transient state sequential between each power supply, the moment of locally supplied power source is fallen function, and different norm plan control module plate has real-time voltage, current sense function and ripple analog functuion; This device also has the load simulation function at primary power source and each secondary power supply.
The present invention has following advantage in short:
1, can realize the combination in any of many power supplys, and function such as the local power down between the program-controlled adjusting different electrical power, timing variations;
2, can realize the analog functuion that momentary load changes;
3, make the test of the abnormity of power supply of the complete electric power system of simulation become perfect, flexible and efficient.
4, the phase mutual interference in the test, big current switching, load simulation, big current detecting problem have been solved.
Introduce the present invention in detail below in conjunction with description of drawings and embodiment.
Description of drawings
Fig. 1 is a The general frame of the present invention;
Fig. 2 is the system architecture block diagram of the embodiment of the invention;
Fig. 3 is the structured flowchart of unusual analog controlling unit plate in the embodiment of the invention;
Fig. 4 is the structured flowchart of program control variable load plate in the embodiment of the invention.
Embodiment
Be illustrated in figure 1 as the power supply analogue means that the present invention tests usefulness, its mainly by the main control module, unusually simulate control module, Programmable and Variable load blocks ,-48V on/off controller and auxiliary circuit module commonly used form.
As shown in Figure 2, be used in the present embodiment to provide unusual simulation control module that various abnormity of power supply change combination by seven provide respectively 5V, 3.3V, 2.5V, 1.8V, 1.5V ,-5V ,+-the unusual analog controlling unit plate of 15V voltage forms.
As shown in Figure 3, provide the unusual analog controlling unit plate of each magnitude of voltage to include respectively: the programmable power supply module of micro controller module, corresponding specification, prestrain circuit module, digital-to-analog conversion and adjusting module, moment control module, voltage and current measurement module and EMI filtration module.Enter the programmable power supply module to convert the voltage of corresponding specification to after the Filtering Processing of primary power source through the EMI filtration module, this voltage enters the hit control module so that power supply has the function that instantaneous interruption or moment fall, and voltage after treatment exports system under test (SUT) to as secondary power supply; The control signal of main control module inputs to micro controller module, controls programmable power supply module, prestrain circuit module, voltage and current measurement module, digital-to-analog conversion and adjusting module, hit control module respectively by micro controller module again; Digital-to-analog conversion and adjusting module output to gradual control, stack ripple control, the overvoltage/undervoltage output control function of programmable power supply module to realize voltage; The output terminal that the prestrain circuit module is connected to the programmable power supply module still can be kept the function of normal voltage output when the system under test (SUT) underload to realize the programmable power supply module; The voltage and current measurement module is connected to the output terminal of programmable power supply module with real-time measuring voltage electric current.
As shown in Figure 2, be used to provide the Programmable and Variable load blocks of variable load to form in the present embodiment by the suitable-Programmable and Variable load board of 48V primary power source and the Programmable and Variable load board of suitable secondary power supply.
As shown in Figure 4, each Programmable and Variable load board all comprises microcontroller, high-current relay matrix and capacitance resistance load matrix.Its microcontroller is controlled the high-current relay matrix under the effect of main control module, under the different switching combining control of high-current relay matrix, the capacitance-resistance matrix produces corresponding combination and exports the variable load that is applicable to different electrical power that can link to each other with system under test (SUT).
As shown in Figure 2, can realize in the present embodiment-48V primary power source hit function-48V on/off controller, its-the 48V primary power source inputs to this-48V on/off controller, under the effect of main control module, exports result to system under test (SUT).
Primary power source employing-48V the power supply of required input in the present embodiment.
When needs are tested hardware system, many power supplys of the simulation anomaly association that present embodiment provides and the proving installation of tolerance limit substitute each power supply of using on the side circuit, according to the required power supply situation of system under test (SUT) and test request with in the present embodiment-48V on/off controller, the unusual analog controlling unit plate of each magnitude of voltage and all or part of access system under test (SUT) of output terminal of each Programmable and Variable load board, so that required power supply of test and load to be provided.
Test process comprises following steps:
The first, main control module links to each other with the backstage control computer with a pair of serial ports by a pair of network interface, to receive pre-set test procedure.
The second, the microcontroller in the main control module is as the main frame of communication channel, microcontroller in different norm plan control module plate and each Programmable and Variable load board is as slave, main frame is distinguished each abnormity of power supply analog controlling unit plate and Programmable and Variable load board according to the address of each plate, with move instruction and data, realize different norm is intended the control real-time, combination of control module plate and Programmable and Variable load board;
Microcontroller in each abnormity of power supply analog controlling unit plate is controlled its plate interior programmable power supply module, prestrain module, digital-to-analog conversion and adjusting module, hit control module, voltage and current measurement module respectively according to the instruction and data that receives, make all or part of module wherein carry out work, so that this plate output voltage has one or more following real-time statuss:
Output 5V, 3.3V, 2.5V, 1.8V, 1.5V ,-5V ,+-a kind of voltage among the 15V;
That output voltage is realized is gradual, stack ripple, overvoltage/undervoltage change;
Output voltage instantaneous interruption or moment are fallen;
Output voltage is still kept normal voltage output when the system under test (SUT) underload.
The main control module makes up the unusual analog controlling unit plate output voltage state of each magnitude of voltage, stability and security test when realizing many abnormity of power supply that system under test (SUT) carries out combination in any are changed.
In addition, when need connecting load, system under test (SUT) can start the Programmable and Variable load blocks.Microprocessor in each Programmable and Variable load board in the Programmable and Variable load blocks receives the instruction of main control module, this plate high-current relay matrix is controlled, make it produce required switching combining, under the switching combining control of high-current relay matrix, the capacitance-resistance matrix produces corresponding combination and exports the variable load that can link to each other with system under test (SUT).
Once more, when system under test (SUT) needs access-48V primary power source, can start-48V on/off controller.It switches on or off after receiving the instruction of main control, with adapt to system under test (SUT) right-needs of 48V primary power source.
EMI filtration module and voltage and current measurement module are optional module in the unusual simulation control module of present embodiment, and the high-current relay matrix in the Programmable and Variable load blocks also can adopt big electric current field effect transistor matrix or heavy-current electronic switch matrix.
The proving installation of many power supplys of simulation anomaly association that present embodiment provides can substitute each power supply of using on the side circuit when hardware system is tested, according to the syntagmatic and the program of certain unusual simulation, examine the stability and the security of hardware system.
Claims (8)
1. power supply analogue means of testing usefulness, this device includes unusual simulation control module, it is characterized in that, this device also includes the main control module, and described main control module is used for described unusual simulation control module is controlled and provided the variation combination of various unusual simulation control modules; Primary power source inputs to corresponding unusual simulation control module, and under the control of main control module, this is simulated control module unusually the primary power source of input is handled, and exports secondary power supply to system under test (SUT).
2. a kind of power supply analogue means of testing usefulness as claimed in claim 1 is characterized in that this device also further includes:
The Programmable and Variable load blocks is used to provide variable load; Import this Programmable and Variable load blocks from the control signal of described main control module, the required variable load of this Programmable and Variable load blocks output is connected to system under test (SUT).
3. a kind of power supply analogue means of testing usefulness as claimed in claim 1 or 2 is characterized in that described main control module links to each other with the backstage control computer, to receive pre-set test procedure.
4. a kind of power supply analogue means of testing usefulness as claimed in claim 1 or 2 is characterized in that, described unusual simulation control module provides the unusual analog controlling unit plate of different common voltage values to form by several.
5. a kind of power supply analogue means of testing usefulness as claimed in claim 4 is characterized in that, described unusual analog controlling unit plate further comprises:
The programmable power supply module, it has program control adjustable, and output different size voltage;
The prestrain circuit module is used to make described programmable power supply module still can keep normal voltage output when the system under test (SUT) underload;
Digital-to-analog conversion and adjusting module are used for the output voltage of described programmable power supply module is carried out gradual control, the control of stack ripple, overvoltage/undervoltage control;
The hit control module is used for that out-put supply to described programmable power supply module carries out instantaneous interruption or moment is fallen control;
Micro controller module is used to control above-mentioned each module.
6. a kind of power supply analogue means of testing usefulness as claimed in claim 5, it is characterized in that described unusual simulation control module can also comprise the EMI filtration module and the voltage and current measurement module that is used for real-time measuring voltage current value that is used for primary power source is carried out filtering.
7. a kind of power supply analogue means of testing usefulness as claimed in claim 2, it is characterized in that, described Programmable and Variable load board further includes the microcontroller that is used to control and is used to realize capacitance-resistance matrix and program-controlled relay or the field effect transistor or the electronic switch matrix of variable load, this microcontroller is controlled described relay or field effect transistor or electronic switch matrix under the effect of described main control module, under the different switching combining control of this relay or field effect transistor or electronic switch matrix, described capacitance-resistance matrix produces corresponding combination and exports the variable load that can link to each other with system under test (SUT).
8. a kind of power supply analogue means of testing usefulness as claimed in claim 1 is characterized in that this device also includes the primary power source on-off controller that is used to realize primary power source hit function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN031592643A CN100406899C (en) | 2003-05-10 | 2003-09-12 | Apparatus for testing electric power system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03128777 | 2003-05-10 | ||
| CN03128777.8 | 2003-05-10 | ||
| CN031592643A CN100406899C (en) | 2003-05-10 | 2003-09-12 | Apparatus for testing electric power system |
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| CN1548972A CN1548972A (en) | 2004-11-24 |
| CN100406899C true CN100406899C (en) | 2008-07-30 |
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| CN031592643A Expired - Fee Related CN100406899C (en) | 2003-05-10 | 2003-09-12 | Apparatus for testing electric power system |
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Cited By (1)
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| CN105823990A (en) * | 2015-01-04 | 2016-08-03 | 成都锐成芯微科技有限责任公司 | Analog load for testing SOC power source |
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Assignee: Foshan Keyuan Electric Co., Ltd. Assignor: Huawei Technologies Co., Ltd. Contract fulfillment period: 2008.8.26 to 2013.8.26 contract change Contract record no.: 2009440001693 Denomination of invention: Apparatus for testing electric power system Granted publication date: 20080730 License type: Exclusive license Record date: 20091022 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.26 TO 2013.8.26; CHANGE OF CONTRACT Name of requester: FOSHAN CITY KEYUAN ELECTRIC APPLICANCE CO., LTD. Effective date: 20091022 |
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