CN114062960A - Data center standby power supply testing system and testing method thereof - Google Patents
Data center standby power supply testing system and testing method thereof Download PDFInfo
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- CN114062960A CN114062960A CN202111357118.6A CN202111357118A CN114062960A CN 114062960 A CN114062960 A CN 114062960A CN 202111357118 A CN202111357118 A CN 202111357118A CN 114062960 A CN114062960 A CN 114062960A
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- 238000012360 testing method Methods 0.000 title claims abstract description 98
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000000956 alloy Substances 0.000 claims description 29
- 229910045601 alloy Inorganic materials 0.000 claims description 29
- 230000001629 suppression Effects 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 10
- 241000037740 Coptis chinensis Species 0.000 claims description 2
- 238000009529 body temperature measurement Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 1
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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
- G01R31/40—Testing power supplies
- G01R31/42—AC power supplies
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Abstract
The invention relates to a data center standby power supply test system, which comprises a generator set to be tested, a test load cabinet connected with the generator set to be tested through a test cable, and a remote control cabinet connected with the test load cabinet through a remote control line, wherein the remote control cabinet comprises a computer communicated with the test load cabinet through an RS485 data transmission line, the test load cabinet comprises an alternating current load control system module, and an electric quantity acquisition module electrically connected with the AC load control system module, and also comprises an intermediate relay module, a control panel switch display module and a capacitive load test module which are respectively electrically connected with the AC load control system module, and the temperature sensor is electrically connected with the alternating current load control system module and used for measuring the temperature of the capacitive load testing module, and the multiple groups of cooling fan modules are electrically connected with the alternating current load control system module. The invention can accurately simulate the capacity with capacitive load characteristic of the diesel engine, and has better use effect.
Description
Technical Field
The invention relates to the technical field of testing of standby power supplies, in particular to a data center standby power supply testing system.
Background
With the continuous rise and mature application of new technologies such as cloud computing, internet of things, big data and the like, the data volume of the information systems of IT users in various industries and enterprises increases day by day, so that the information systems are increasingly large and complex, and therefore, the stable operation of a data center faces huge challenges.
Some loads of the switching power supply type of the data center, such as a high-frequency module UPS, a high-voltage direct current, a server PSU and the like, are provided with PFC circuits under normal work, and basically present resistive load characteristics, but present strong capacitive load characteristics at the moment of working and starting when a mains supply is converted into diesel power, the diesel power needs to charge capacitors inside the loads of the switching power supply type, the larger the capacitive load characteristics are, the smaller the exciter output of the diesel power needs to be, and if the capacitive characteristics are increased to a certain degree, the output of the exciter needs to be reduced to zero, namely the limit of the diesel power; and the diesel engine enters an unstable working area, so that the diesel engine is easy to be pulled down or vibrate due to the impact of capacitive characteristics, and simultaneously, the problem of reflecting higher harmonic waves is easy to generate, so that the diesel engine is directly crashed.
At present, most of traditional data center standby power supply test systems are pure resistive loads, so that simulation performance is limited.
Disclosure of Invention
In order to solve the problems, the invention provides a data center standby power supply testing system which can accurately simulate the capacity with capacitive load characteristics of diesel engine and has a good using effect.
The technical scheme adopted by the invention is as follows: a data center standby power supply testing system comprises a generator set to be tested and a testing load cabinet connected with the generator set to be tested through a testing cable; still include with the remote control cabinet that connects via remote control line between the test load cabinet, the remote control cabinet include with the computer of connecting via RS485 data transmission line between the test load cabinet, the test load cabinet includes exchange load control system module, and with the electric quantity collection module that exchange load control system module electricity is connected, the generating electricity of the generating set that awaits measuring transmits extremely via test cable the electric quantity collection module, the electric quantity collection module gathers the signal of telecommunication and transmits extremely exchange load control system module, the load cabinet that awaits measuring still include respectively with intermediate relay module, control panel switch display module and the capacitive load test module that exchange load control system module electricity is connected, and with exchange load control system module electricity be connected, with right the temperature sensor of capacitive load test module temperature measurement and with the multiunit cooling fan module that exchanges load control system module electricity and connect And starting the capacitive load testing module through the control panel switch display module to test the load capacity of the generator set to be tested.
As a further limitation to the above technical solution, the capacitive load testing module includes a fuse module electrically connected to the electric quantity collecting module, and a plurality of sets of contactor modules arranged in parallel and electrically connected to the fuse module; the device comprises a contactor module, a plurality of groups of alloy resistance modules and a plurality of groups of inrush current and harmonic suppression devices, wherein the contactor module is electrically connected with the plurality of groups of alloy resistance modules, the plurality of groups of inrush current and harmonic suppression devices are electrically connected with the contactor module, the alloy resistance modules are connected with the inrush current and harmonic suppression devices in parallel, and the sum of the groups of the alloy resistance modules and the groups of the inrush current and harmonic suppression devices is equal to the group number of the contactor module.
As a further limitation to the above solution, the inrush current and harmonic suppression device is a parallel capacitor.
As a further limitation to the above technical solution, the parallel capacitors are 5 groups, and the contactor modules are 10 groups.
As a further limitation to the technical scheme, a multi-computer parallel machine interface and a PC intelligent interface are arranged on the test load cabinet.
According to the data center standby power supply testing system, through the arrangement of the generator set to be tested, the testing load cabinet and the remote control cabinet, and the arrangement of the alternating current load control system module, the electric quantity acquisition module, the intermediate relay module, the control panel switch display module and the capacitive load testing module in the testing load cabinet, the capacitive load testing module can be selected through the control panel switch display module, so that the testing system can simulate the capacity with the capacitive load characteristic of diesel engine.
The invention also relates to a data center standby power supply testing method, which is based on the testing system and comprises the following steps:
a. the generator set to be tested generates power and transmits the power to the power acquisition module through a test cable, the power acquisition module acquires an electric signal and transmits the electric signal to the alternating current load control system module, and the alternating current load control system module is manually operated through a control panel switch display module or remotely controlled through a computer to select models;
b1, simulating a resistive load, wherein the alloy resistance module comprises the following five groups of gears which can be selected:
| power of | Type of material | Number of |
| 450KW | Alloy resistance 82.5cm (28.8 omega 357V 4.42kW U type heat radiation) | 102 root or more |
| 450KW | Alloy resistance 82.5cm (28.8 omega 357V 4.42kW U type heat radiation) | 102 root or more |
| 450KW | Alloy resistance 82.5cm (28.8 omega 357V 4.42kW U type heat radiation) | 102 root or more |
| 450KW | Alloy resistance 82.5cm (28.8 omega 357V 4.42kW U type heat radiation) | 102 root or more |
| 200KW | Alloy resistance 82.5cm (28.6 omega 357V 4.45kW U type heat radiation) | 45 root of Chinese goldthread |
b2, simulating capacitive load, wherein the inrush current and harmonic suppression device comprises the following five groups of gear options:
c. and testing the load carrying capacity of the model selection, and then transmitting the test result to be loaded to the computer through an RS485 data transmission line.
Drawings
FIG. 1 is a schematic diagram of a data center backup power test system of the present invention;
fig. 2 is a power supply and distribution system diagram of a data center standby power supply testing system according to the present invention.
In the figure:
the method comprises the following steps of 1-a generator set to be tested, 11-a test cable, 2-a test load cabinet, 21-an alternating current load control system module, 22-an electric quantity acquisition module, 23-an intermediate relay module, 24-a control panel switch display module, 25-a capacitive load test module, 251-a fuse module, 252-a contactor module, 253-an alloy resistor module, 254-an inrush current and harmonic wave suppression device, 26-a temperature sensor, 27-a cooling fan module, 28-a working power supply interface, 3-a remote control cabinet, 31-a computer, 32-an RS485 data transmission line, 4-a mains supply power supply and 41-a working power line.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Example one
Referring to fig. 1 and fig. 2, a data center stand-by power supply testing system, which comprises an integrated structure including a generator set 1 to be tested, a testing load cabinet 2 connected with the generator set 1 to be tested via a testing cable 11, and a remote control cabinet 3 connected with the testing load cabinet 2 via a remote control line, wherein the remote control cabinet 3 includes a computer 31 connected with the testing load cabinet 2 via an RS485 data transmission line 32, and specifically, the testing load cabinet 2 and the remote control cabinet 3 are respectively provided with an external control port, the two external control ports are connected via the remote control line, and the testing load cabinet 2 can be provided with a PC intelligent interface, a multi-computer parallel interface, etc. according to requirements, and specifically, the testing load cabinet 2 is further connected with a power supply 4 via a working power supply line 41, that is, the testing load cabinet 2 is provided with a working power supply interface 28, one end of the operating power line 41 is connected to the operating power supply interface 28.
As shown in fig. 2, the test load cabinet 2 includes an ac load control system module 21, and an electric quantity collection module 22 electrically connected to the ac load control system module 21, the power generated by the generator set 1 to be tested is transmitted to the electric quantity collection module 22 via the test cable 11, the electric quantity collection module 22 collects an electric signal and transmits the electric signal to the ac load control system module 21, the test load cabinet further includes an intermediate relay module 23, a control panel switch display module 24, and a capacitive load test module 25 respectively electrically connected to the ac load control system module 21, and a temperature sensor 26 electrically connected with the AC load control system module 21 for measuring the temperature of the capacitive load test module 25 and a plurality of sets of cooling fan modules 27 electrically connected with the AC load control system module 21, the capacitive load test module 25 is activated via the control panel switch display module 24 to test the load capacity of the genset 1 under test.
In this embodiment, the AC load control system module 21 is a control board in the test load cabinet 2, the power acquisition module 22 adopts the intelligent tester 8961F2 of the generator set 1 to be tested, AC220V single power supply, and the power generated by the generator set 1 to be tested enters the power acquisition module 22 through the high-voltage wiring terminal input test cable 11 and then sequentially through the high-voltage vacuum circuit breaker and the current transformer in the circuit.
As shown in fig. 2, the capacitive load testing module 25 includes a fuse module 251 electrically connected to the power collecting module 22, a plurality of sets of contactor modules 252 electrically connected to the fuse module 251 and arranged in parallel, a plurality of sets of alloy resistor modules 253 electrically connected to the contactor modules 252, and a plurality of sets of inrush current and harmonic suppression devices 254 electrically connected to the contactor modules 252, wherein the alloy resistor modules 253 and the inrush current and harmonic suppression devices 254 are arranged in parallel, and the sum of the sets of the alloy resistor modules 253 and the inrush current and harmonic suppression devices 254 is equal to the set number of the contactor modules 252. Specifically, the inrush current and harmonic suppression device 254 is a parallel capacitor, the parallel capacitor is 5 sets, the contactor module 252 is 10 sets, that is, the parallel capacitor can select 5 grades, the size of each grade is 50kvar, 100kvar, 200kvar, 500kvar, specifically, the parallel capacitor is a high-voltage parallel capacitor, in this embodiment, the contactor module 252 adopts 10 sets, the alloy resistance module 253 adopts 5 sets, that is, the alloy resistance module 2535 grades are grouped, and the power size of the 5-set grades is 450KW, 200 KW.
In this embodiment, in order to facilitate heat dissipation, the test load cabinet 2 further includes a temperature sensor 26 electrically connected to the AC load control system module 21 and configured to measure the temperature of the capacitive load test module 25, and a plurality of sets of heat dissipation fan modules 27 electrically connected to the AC load control system module 21, specifically, the number of the heat dissipation fan modules 27 is 8, and the fan is a SLYF-12-7B (AC380V 50HZ 2.2kW) three-phase fan.
Example two
A data center standby power supply testing method is based on a testing system in the first embodiment and comprises the following steps:
a. the generator set 1 to be tested generates power and transmits the power to the power acquisition module 22 through the test cable 11, the power acquisition module 22 acquires an electric signal and transmits the electric signal to the alternating current load control system module 21, and the alternating current load control system module 21 is manually operated through the control panel switch display module 24 or remotely controlled through the computer 31 to select the type;
b1, simulating a resistive load, wherein the alloy resistance module 253 comprises the following five gears which can be loaded and selected individually or in combination:
b2, capacitive load simulation, inrush current and harmonic suppression device 254 comprises the following five groups of gears which are loaded and selected individually or in combination:
| gear position | Power of | Capacity calculation |
| Gear one | 50kvar | BFM10.5-50-3W(10.5KV 50HZ 1.44μF) |
| Second gear | 100kvar | BFM10.5-100-3W(10.5KV 50HZ 2.88μF) |
| Third gear | 200kvar | BFM10.5-200-3W(10.5KV 50HZ 5.76μF) |
| Gear position four | 500kvar | BFM10.5-250-3W(10.5KV 50HZ 7.2μF) |
| Fifth gear | 500kvar | BFM10.5-250-3W(10.5KV 50HZ 7.5μF) |
c. And testing the load capacity of the selected model, and then transmitting the test result to be loaded to the computer 31 through the RS485 data transmission line 32.
The formula for calculating the inrush and harmonic suppression device 254 power is: the inrush and harmonic suppression device 254 has a power Q2 × pi × C F U2 (Q is a reactive power, in kvar, pi is 3.14, C is a capacitance, in F, F is a frequency, in HZ, in U is a voltage, in KV)
The computer 31 remotely operates the intelligent automatic loading according to the data collected by the electric quantity collection module 22 and the loading stage preset in the software, the manual operation is mostly used for testing a certain gear or a combined gear by a user independently, and the electric quantity collection module 22 plays a display role in the process.
When the power factor is 1, pure resistive load simulation is carried out, only the gear of the alloy resistor module 253 is loaded, and the gear combination and the actual test result are as follows:
wherein u, v and w are u-phase, v-phase and w-phase, such as current (A) | Iu, i.e. u-phase current.
The loaded capacitive load after the generator set 1 to be tested generates electricity has the characteristic of leading power factor, namely, the resistive load and the capacitive load are combined together for testing, the alloy resistor module 253 and the inrush current and harmonic suppression device 254 are loaded, and the combination of partial gears and the actual test result are as follows:
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equally replacing or changing the technical idea of the present invention within the technical scope of the present invention.
Claims (6)
1. A data center stand-by power supply test system which characterized in that: the device comprises a generator set to be tested and a test load cabinet connected with the generator set to be tested through a test cable; still include with the remote control cabinet that connects via remote control line between the test load cabinet, the remote control cabinet include with the computer of connecting via RS485 data transmission line between the test load cabinet, the test load cabinet includes exchange load control system module, and with the electric quantity collection module that exchange load control system module electricity is connected, the generating electricity of the generating set that awaits measuring transmits extremely via test cable the electric quantity collection module, the electric quantity collection module gathers the signal of telecommunication and transmits extremely exchange load control system module, the load cabinet that awaits measuring still include respectively with intermediate relay module, control panel switch display module and the capacitive load test module that exchange load control system module electricity is connected, and with exchange load control system module electricity be connected, with right the temperature sensor of capacitive load test module temperature measurement and with the multiunit cooling fan module that exchanges load control system module electricity and connect And starting the capacitive load testing module through the control panel switch display module to test the load capacity of the generator set to be tested.
2. The data center standby power supply testing system of claim 1, wherein: the capacitive load testing module comprises a fuse module electrically connected with the electric quantity acquisition module and a plurality of groups of contactor modules which are electrically connected with the fuse module and arranged in parallel; the device comprises a contactor module, a plurality of groups of alloy resistance modules and a plurality of groups of inrush current and harmonic suppression devices, wherein the contactor module is electrically connected with the plurality of groups of alloy resistance modules, the plurality of groups of inrush current and harmonic suppression devices are electrically connected with the contactor module, the alloy resistance modules are connected with the inrush current and harmonic suppression devices in parallel, and the sum of the groups of the alloy resistance modules and the groups of the inrush current and harmonic suppression devices is equal to the group number of the contactor module.
3. The data center standby power supply testing system of claim 2, wherein: the inrush and harmonic suppression device is a parallel capacitor.
4. The data center standby power supply testing system of claim 3, wherein: the parallel capacitors are 5 groups, and the contactor modules are 10 groups.
5. The data center standby power supply testing system of claim 2, wherein: a multi-parallel machine interface and a PC intelligent interface are arranged on the test load cabinet.
6. A data center standby power supply testing method is based on the testing system in claims 2 to 5, and is characterized by comprising the following steps:
a. the generator set to be tested generates power and transmits the power to the power acquisition module through a test cable, the power acquisition module acquires an electric signal and transmits the electric signal to the alternating current load control system module, and the alternating current load control system module is manually operated through a control panel switch display module or remotely controlled through a computer to select models;
b1, simulating a resistive load, wherein the alloy resistance module comprises the following five groups of gears which can be selected:
b2, simulating capacitive load, wherein the inrush current and harmonic suppression device comprises the following five groups of gear options:
c. and testing the load carrying capacity of the model selection, and then transmitting the test result to be loaded to the computer through an RS485 data transmission line.
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| US6900621B1 (en) * | 2003-07-03 | 2005-05-31 | Inovys | Digitally controlled modular power supply for automated test equipment |
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