CN103165201B

CN103165201B - Nuclear power station power detection system and method

Info

Publication number: CN103165201B
Application number: CN201110417986.9A
Authority: CN
Inventors: 蔡叶发; 马蜀; 丁俊超; 刘新东; 汪世清; 犹代伦; 刘益群; 王国云; 孙志峰; 李勇; 张志飞; 崔国华
Original assignee: China General Nuclear Power Corp; Daya Bay Nuclear Power Operations and Management Co Ltd
Current assignee: China General Nuclear Power Corp; Lingdong Nuclear Power Co Ltd
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2016-03-30
Anticipated expiration: 2031-12-14
Also published as: CN103165201A

Abstract

The present invention is applicable to the online digitizing state-detection of power equipment and monitoring technique, also belongs to million kilowatt nuclear power station key technology area simultaneously, provides a kind of nuclear power station power detection system and method.Described system comprises programmable power supply, electronic load, testing apparatus, database, tested power supply; Testing apparatus comprises embedded controller and test data collection card; Embedded controller controls programmable power supply exports voltage magnitude, the frequency of tested power supply to, and controls the current value passing into electronic load; Electronic load is connected with tested power supply, and the current value passing into electronic load equals the current value passing into tested power supply; Test data collection card gathers the corresponding test data of test data as tested power supply of electronic load, and by the test data of collection stored in database.According to the test data obtained, the embodiment of the present invention judges that tested power supply whether can the power supply that broken down of replacing nuclear power station, thus ensure that nuclear power station can reliability service after more new power.

Description

Nuclear power station power detection system and method

Technical field

The invention belongs to the online digitizing state-detection of power equipment and monitoring technique, also belong to million kilowatt nuclear power station key technology area simultaneously, particularly relate to nuclear power station power detection system and method.

Background technology

Nuclear power station is the generating plant that the energy utilizing nuclear fission or nuclear fusion reaction to discharge produces electric energy.In order to protect the health of nuclear power station staff and nuclear power station surrounding resident; the design of nuclear power station, construction and operation all adopt the principle of depth defense; multiple protective is provided from equipment, measure; to guarantee that the output power of nuclear power station to reactor effectively controls; and can in the various disaster of appearance; as earthquake, tsunami, flood etc.; or the artificial fire, blast etc. produced; also can guarantee to cool fully reactor fuel assemblies, and then ensure that the discharge to environment does not occur radiomaterial.

Status of electric power detecting & monitoring technology is the gordian technique of nuclear power station, in nuclear power station, by exploitation ageing testing method, maintainability test method sets up the technology platform that nuclear power station opertaing device detects, comprise and set up the aging of nuclear power station plate, maintainability test platform, state-detection and monitoring technique to be applied to the burn-in test of circuit board piece in nuclear power plant instrument Ore-controlling Role, maintainability test field, thus realize the Ageing Diagnosis/test and management of nuclear power station opertaing device/plate, improve the reliability Measuring error level of nuclear power station operational outfit and spare part, promote the safe operation of unit.

The power source that power supply runs as nuclear power station; in nuclear power station, protection system or control system need power supply to drive; in such as nuclear power station, reactor protection system, reactor outer neutron measurement, reactor control system etc. all employ a large amount of power supplys, and very important effect is played in the safe operation of reliability to nuclear power station of these power supplys.And along with the development of nuclear power station, the upgrading of I&C system and the renewal of aging power supply, be badly in need of detecting the power supply not met service requirement in nuclear power station, screening alternative power supply, to ensure that nuclear power station can reliably, safely run after more new power.

Summary of the invention

Embodiments provide a kind of nuclear power station power detection system, in order to detect in nuclear power station the power supply and screening spare part power supply that do not meet service requirement.

The embodiment of the present invention is achieved in that a kind of nuclear power station power detection system, and described system comprises programmable power supply, electronic load, testing apparatus, database, tested power supply;

Described testing apparatus comprises embedded controller and test data collection card;

Programmable power supply described in described embedded controller controls exports voltage magnitude, the frequency of tested power supply to, and controls the current value passing into described electronic load;

Described electronic load is connected with described tested power supply, and the current value passing into described electronic load equals the current value passing into described tested power supply;

Described test data collection card gathers the corresponding test data of test data as described tested power supply of described electronic load, and by the test data of collection stored in described database.

Another object of the embodiment of the present invention is to provide the nuclear power station power detecting method adopting nuclear power station power detection system, and described method comprises:

Exported to voltage magnitude, the frequency of tested power supply by the embedded controller controls programmable power supply of testing apparatus, and control the current value passing into electronic load, make the current value passing into described electronic load equal to pass into the current value of described tested power supply;

The corresponding test data of test data as described tested power supply of described electronic load is gathered by the test data collection card of testing apparatus, and by the test data of collection stored in database;

The performance of tested power supply is detected according to the test data stored in database.

In the embodiment of the present invention, control programmable power supply by testing apparatus, electronic load tested tested power supply, and gather, the test data of store electrons load is as the corresponding test data of tested power supply.Owing to can know the performance condition of tested power supply according to the test data stored, therefore, it is possible to judge whether tested power supply is still applicable to continuing in nuclear power station work, or the power supply whether tested power supply can break down in replacing nuclear power station can be judged, thus ensure that nuclear power station can reliably, safely run after more new power.

Accompanying drawing explanation

Fig. 1 is the structure of the nuclear power station power detection system that first embodiment of the invention provides;

Fig. 2 is that the nuclear power station power detection system that second embodiment of the invention provides detects AC-DC power supply structure;

Fig. 3 is the connection layout of the nuclear power station power detection system that provides of second embodiment of the invention DC Electronic Loads when detecting AC-DC power supply;

Fig. 4 is that the nuclear power station power detection system that second embodiment of the invention provides detects the load current step overshoot amplitude of AC-DC power supply and the anatomical connectivity figure of transient recovery time;

Fig. 5 is the oscillogram of the nuclear power station power detection system that provides of second embodiment of the invention electronic load current generation step when detecting AC-DC power supply;

Fig. 6 is load current step overshoot amplitude and the oscillogram of transient recovery time of the nuclear power station power detection system detection AC-DC power supply that second embodiment of the invention provides;

Fig. 7 is input voltage step overshoot amplitude, the transient recovery time structure connection layout of the nuclear power station power detection system detection AC-DC power supply that second embodiment of the invention provides;

Fig. 8 is input voltage step overshoot amplitude, the transient recovery time waveform figure of the nuclear power station power detection system detection AC-DC power supply that second embodiment of the invention provides;

Fig. 9 is the oscillogram of the switching on and shutting down characteristic of the nuclear power station power detection system detection AC-DC power supply that second embodiment of the invention provides;

Figure 10 is that the nuclear power station power detection system that second embodiment of the invention provides detects the ripple of AC-DC power supply and the anatomical connectivity figure of noise;

Figure 11 is the anatomical connectivity figure of the nuclear power station power detection system detection DC-DC power that third embodiment of the invention provides;

Figure 12 is the anatomical connectivity figure of the nuclear power station power detection system detection AC-AC power supply that fourth embodiment of the invention provides;

Figure 13 is the anatomical connectivity figure of the nuclear power station power detection system detection DC-AC power-supply that fifth embodiment of the invention provides;

Figure 14 is the output voltage wave figure of the nuclear power station power detection system detection DC-AC power-supply that fifth embodiment of the invention provides;

Figure 15 is the anatomical connectivity figure of the nuclear power station power detection system detection DC-AC power-supply that fifth embodiment of the invention provides;

Figure 16 is the nuclear power station power detection system structural representation comprising rack that sixth embodiment of the invention provides;

Figure 17 is the nuclear power station power detection system structural representation comprising temperature acquisition point that sixth embodiment of the invention provides;

Figure 18 is the nuclear power station power detection system anatomical connectivity figure that sixth embodiment of the invention provides;

Figure 19 is the nuclear power station power detecting method flow diagram that seventh embodiment of the invention provides.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

The embodiment of the present invention controls programmable power supply by testing apparatus, electronic load is tested tested power supply, and gather, the test data of store electrons load is as the corresponding test data of tested power supply.

Embodiments provide one: nuclear power station power detection system and method.

Described system comprises: programmable power supply, electronic load, testing apparatus, database, tested power supply;

Described method comprises: the voltage magnitude, the frequency that are exported to tested power supply by the embedded controller controls programmable power supply of testing apparatus, and control the current value passing into electronic load, make the current value passing into described electronic load equal to pass into the current value of described tested power supply;

In order to technical solutions according to the invention are described, be described below by specific embodiment.

embodiment one:

Fig. 1 shows the structure of the nuclear power station power detection system that first embodiment of the invention provides, and for convenience of explanation, illustrate only part related to the present embodiment.

Nuclear power station power detection system 1 comprises programmable power supply 11, electronic load 12, testing apparatus 13, database 14 and tested power supply 15.Wherein, testing apparatus 13 comprises embedded controller 131, test data collection card 132 etc.

Embedded controller 131 in testing apparatus 13 controls voltage magnitude, the frequency that programmable power supply 11 exports tested power supply 15 to, and controls the current value passing into electronic load 12.This electronic load 12, except being connected with embedded controller 131, is also connected with tested power supply 15, and the current value passing into electronic load 12 equals the current value passing into tested power supply 15.

Test data collection card 132 in testing apparatus 13 gathers the corresponding test data of test data as tested power supply 15 of electronic load 12, and by the test data of collection stored in database 14.

In the present embodiment, programmable power supply 11 exports voltage corresponding to steering order to tested power supply 15 with this voltage, with the different test events of the tested power supply and tested power supply of testing different model for exporting steering order output according to the voltage received; Electronic load 12 arranges the current value passing into this electronic load 12, to determine the current value passing into tested power supply 15 for the Current Control instruction according to reception;

The testing apparatus 13 of the present embodiment is National Instruments (NATIONALINSTRUMENTS, NI) testing apparatus, and this testing apparatus 13 comprises embedded controller 131, test data collection card 132 etc.Wherein, this embedded controller 131 is mainly used in controlling whole testing process, such as controls the magnitude of voltage that programmable power supply 11 exports, controls the input current value of electronic load 12, and controls the test data etc. that test data collection card 132 gathers tested power supply 15.In the present embodiment, test data comprises the magnitude of voltage, current value etc. of tested power supply 15, and the test data that testing process obtains, all stored in database, can judge the performance of tested power supply 15 according to the test data of database purchase.

In the first embodiment of the invention, control programmable power supply 11 by testing apparatus 13, electronic load 12 tested tested power supply, and gather, the test data of store electrons load 12 is as the corresponding test data of tested power supply 15.Owing to can know the performance condition of tested power supply 15 according to the test data stored, therefore, it is possible to judge whether tested power supply 15 is still applicable to continuing in nuclear power station work, or the power supply whether tested power supply 15 can break down in replacing nuclear power station can be judged, thus ensure that nuclear power station can reliably, safely run after more new power.

embodiment two:

Second embodiment of the invention mainly describes and adopts nuclear power station power detection system 1 to detect AC-DC (AC-DC) power supply, when detecting AC-DC power supply, programmable power supply 11 is for exchanging programmable power supply 21, electronic load 12 is DC Electronic Loads 22, and tested power supply 15 is the tested power supply 25 of AC-DC.The structural drawing detecting AC-DC power supply as shown in Figure 2, for convenience of explanation, illustrate only part related to the present embodiment.

In the present embodiment, interchange programmable power supply 21 and DC Electronic Loads 22 all have general purpose interface bus (GeneralPurposeInterfaceBus, GPIB) interface, for being connected with the embedded controller 231 in testing apparatus 23, this embedded controller 231 is identical with the embedded controller 131 of embodiment one.Embedded controller 231 controls by GPIB cable the output voltage amplitude, the frequency that exchange programmable power supply 21, controls by the GPIB cable be connected with DC Electronic Loads 22 current value passing into this DC Electronic Loads 22.

Particularly, the DC Electronic Loads 22 of the present embodiment is concrete as shown in Figure 3 with the annexation of tested power supply 25, testing apparatus 23, and in figure 3, in DC Electronic Loads 22, OUT positive and negative terminal connects the positive and negative terminal of tested power supply 25 respectively; In DC Electronic Loads 22, SCENCE positive and negative terminal connects the positive and negative terminal of tested power supply 25 respectively.The OUT end simulation resistive load of this DC Electronic Loads 22, the SCENCE end of DC Electronic Loads 22 realizes accurately measuring tested power supply 25, and this accurately measures removes tested power supply 25 and the voltage drop on DC Electronic Loads 22 cable.When the electric current and voltage frequency needing to gather is more than 50Hz, the output voltage by Vmoniter and Imoniter reading DC Electronic Loads 22 is converted to output voltage, the electric current of tested power supply 25, and the output voltage of this Vmoniter is 0 to 10V.The conversion formula of tested power supply 25 is as follows:

Wherein, the V of above-mentioned formula is the output voltage of tested power supply 25, and I is the output current of tested power supply 25.

The present embodiment, according to the micro-minicomputer system equipment foundation of Switching Power Supply general specification GB/T14714-2008 and military hardware DC power supply generic specification SJ20825-2002 as test AC-DC power source performance, mainly tests test item as shown in table 1:

Table 1:

Further, voltage magnitude, current amplitude, frequency, the power of the interchange programmable power supply 21 required for above-mentioned 1-6 test item, and the input voltage of DC Electronic Loads 22, input current, consumed power also can read register through gpib interface and directly read.And 7-10 test item, such as voltage regulation factor then needs then to need through testing apparatus 23 digital output through testing apparatus 23 analog output, load effect, then is obtained by test data collection card 232 collection analysis of testing apparatus 23.

The method of testing detecting each test item of AC-DC power supply is described below respectively:

(1) output voltage ratings and the output current rating of tested power supply 25, is tested

In the present embodiment, testing apparatus 23 exchanges by connecting the nominal input voltage value that output that the GPIB of programmable power supply 21 controls this interchange programmable power supply 21 is tested power supply 25; The pattern being controlled this DC Electronic Loads 22 by the GPIB connecting DC Electronic Loads 22 is constant current (CC) pattern, and set the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25, the then input voltage of this DC Electronic Loads 22, the input current output voltage ratings of corresponding tested power supply 25 and output current rating respectively, by the output voltage ratings and the output current rating that read the input voltage of DC Electronic Loads 22, input current obtains tested power supply 25.

(2) laod stability of tested power supply 25, is tested

The present embodiment, after the input voltage determining tested power supply 25, adjusts the input current of DC Electronic Loads 22, and then obtains the laod stability of tested power supply 25.

1, determine that the input voltage of tested power supply 25 is 110% of rated voltage:

The output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is 110% of tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25, records the input voltage U of now DC Electronic Loads 22 ₀.

The electric current of adjustment DC Electronic Loads 22, make to pass into the rated current of electric current from tested power supply 25 of DC Electronic Loads 22,20% of tested power supply 25 rated current is progressively decremented to according to the step-length preset, or, make the electric current passing into DC Electronic Loads 22 from 20% of tested power supply 25 rated current, be progressively incremented to the rated current of tested power supply 25 according to the step-length preset.Wherein, the step-length preset can be 5%, certainly, also can be other step-length, be not construed as limiting herein.The electric current of each adjustment DC Electronic Loads 22 also, after time delay certain hour, all records the voltage U of this DC Electronic Loads 22 _i, wherein, i is from 1 to n, and the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

2, determine that the input voltage of tested power supply 25 is 85% of rated voltage:

The output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is 85% of tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25, records the input voltage U of now DC Electronic Loads 22 ₀'.

The electric current of adjustment DC Electronic Loads 22, the electric current passing into DC Electronic Loads 22 is made progressively to be decremented to 20% of tested power supply 25 rated current from the rated current of tested power supply 25 according to the step-length preset, or, make the electric current passing into DC Electronic Loads 22 from 20% of tested power supply 25 rated current, be progressively incremented to the rated current of tested power supply 25 according to the step-length preset.Wherein, the step-length preset can be 5%, certainly, also can be other step-length, be not construed as limiting herein.The electric current of each adjustment DC Electronic Loads 22 also, after time delay certain hour, all records the voltage U of this DC Electronic Loads 22 _i', wherein, the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

In the present embodiment, if the laod stability of tested power supply 25 is S _negative, then wherein, when voltage is 85% rated voltage, Δ U ₀=| U ₀'-U _i' |, U0=U ₀'; When voltage is 110% rated voltage, Δ U ₀=| U ₀-U _i|, U0=U0.To in this example 1, the laod stability S that obtains of 2 two kind of situation _negativeget wherein large value.

Certainly, the present embodiment except by exchange the output of programmable power supply 21 be tested power supply 25 nominal input voltage value 110% and 85% except, can be also other numerical value, be not construed as limiting herein.

(3) voltage stabilized range of tested power supply 25, is tested

The present embodiment, after the input voltage determining tested power supply 25, adjusts the load current of DC Electronic Loads 22, and then obtains the voltage stabilized range of tested power supply 25.

1, testing apparatus 23 is the nominal input voltage value of tested power supply 25 by the output of GPIB control interchange programmable power supply 21; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25, records the input voltage U of now DC Electronic Loads 22 ₂.

The load current of adjustment DC Electronic Loads 22, make to pass into the rated current of load current from tested power supply 25 of DC Electronic Loads 22, the minimum load electric current of tested power supply 25 is progressively decremented to according to the step-length preset, or, make the load current passing into DC Electronic Loads 22 from the minimum load electric current of tested power supply 25, be progressively incremented to the rated current of tested power supply 25 according to the step-length preset.Wherein, the step-length preset can be 5%, certainly, also can be other step-length, be not construed as limiting herein.The electric current of each adjustment DC Electronic Loads 22 also, after time delay certain hour, all records the voltage U of this DC Electronic Loads 22 _j, wherein, j is from 1 to m, and the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

2, the output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is 85% of tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25, records the input voltage U of now DC Electronic Loads 22 ₂'.

The load current of adjustment DC Electronic Loads 22, make to pass into the rated current of load current from tested power supply 25 of DC Electronic Loads 22, the minimum load electric current of tested power supply 25 is progressively decremented to according to the step-length preset, or, make the load current passing into DC Electronic Loads 22 from the minimum load electric current of tested power supply 25, be progressively incremented to the rated current of tested power supply 25 according to the step-length preset.Wherein, the step-length preset can be 5%, certainly, also can be other step-length, be not construed as limiting herein.The electric current of each adjustment DC Electronic Loads 22 also, after time delay certain hour, all records the voltage U of this DC Electronic Loads 22 _j', wherein, j is from 1 to m, and the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

3, the output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is 110% of tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25, records the input voltage U of now DC Electronic Loads 22 ₂".

The load current of adjustment DC Electronic Loads 22, make to pass into the rated current of load current from tested power supply 25 of DC Electronic Loads 22, the minimum load electric current of tested power supply 25 is progressively decremented to according to the step-length preset, or, make the load current passing into DC Electronic Loads 22 from the minimum load electric current of tested power supply 25, be progressively incremented to the rated current of tested power supply 25 according to the step-length preset.Wherein, the step-length preset can be 5%, certainly, also can be other step-length, be not construed as limiting herein.The electric current of each adjustment DC Electronic Loads 22 also, after time delay certain hour, all records the voltage U of this DC Electronic Loads 22 _j", wherein, j is from 1 to m, and the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

In the present embodiment, if the voltage stabilized range of tested power supply 25 is S _surely, then to the 1st kind of situation, Δ U ₂=| U ₂-U _j|, U ₂=U ₂; To the 2nd kind of situation, Δ U ₂=| U ₂'-U _j' |, Δ U ₂=U ₂'; To the 3rd kind of situation, Δ U ₂=| U ₂"-U _j" |, Δ U ₂=U ₂".To in this example 1,2, the voltage stabilized range S that obtains of 3 kind of situation _surely, get wherein maximal value.

Certainly, the present embodiment except by exchange nominal input voltage that the output of programmable power supply 21 is tested power supply 25, nominal input voltage value 110% and 85% except, can be also other numerical value, be not construed as limiting herein.

(4) voltage-regulation coefficient of tested power supply 25, is tested

The present embodiment is after the input current determining DC Electronic Loads 22, and adjustment exchanges the output voltage of programmable power supply 11, and then obtains the voltage-regulation coefficient of tested power supply 25.

1, the pattern that testing apparatus 23 controls DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25; By the nominal input voltage value that the output of GPIB control interchange programmable power supply 21 is tested power supply 25, record the input voltage U of now DC Electronic Loads 22 ₄.The output that adjustment exchanges programmable power supply 21 is 110% of tested power supply 25 rated voltage, after time delay certain hour, and the voltage U of recorded electronic load 22 _k; Adjustment exchanges the output of programmable power supply 21 is again 85% of tested power supply 25 rated voltage, after time delay certain hour, and the voltage U of recorded electronic load 22 _k'.Wherein, k is from 1 to N, and the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

2, the pattern that testing apparatus 23 controls DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this DC Electronic Loads 22 is 20% of tested power supply 25 load current value; By the nominal input voltage value that the output of GPIB control interchange programmable power supply 21 is tested power supply 25, record the input voltage U of now DC Electronic Loads 22 ₄'.The output that adjustment exchanges programmable power supply 21 is 110% of tested power supply 25 rated voltage, after time delay certain hour, and the voltage U of recorded electronic load 22 _k1; Adjustment exchanges the output of programmable power supply 21 is again 85% of tested power supply 25 rated voltage, after time delay certain hour, and the voltage U of recorded electronic load 22 _k1'.Wherein, k1 is from 1 to M, and the time of time delay can be set as 10 seconds, certainly, also can be set as other times numerical value, be not construed as limiting herein.

In the present embodiment, if the voltage-regulation coefficient of tested power supply 25 is S _electricity, then wherein, Δ U ₄get | U ₄-U _k|, | U ₄-U _k' | and | U ₄-U _k1|, | U ₄-U _k1' | maximal value.

(5) efficiency of tested power supply 25, is tested

The present embodiment is after the input current determining DC Electronic Loads 22, and adjustment exchanges the output voltage of programmable power supply 11, and then obtains the power efficiency of tested power supply 25.

1, the pattern that testing apparatus 23 controls DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 22 is tested power supply 25; By the nominal input voltage value that the output of GPIB control interchange programmable power supply 21 is tested power supply 25, exchange the output power of programmable power supply 21 and the absorbed power of DC Electronic Loads 22 by gpib interface from register read.

2, the pattern that testing apparatus 23 controls DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this DC Electronic Loads 22 is 20% of tested power supply 25 load current value; By the nominal input voltage value that the output of GPIB control interchange programmable power supply 21 is tested power supply 25, exchange the output power of programmable power supply 21 and the absorbed power of DC Electronic Loads 22 by gpib interface from register read.

3, the pattern that testing apparatus 23 controls DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this DC Electronic Loads 22 is 50% of tested power supply 25 load current value; By the nominal input voltage value that the output of GPIB control interchange programmable power supply 21 is tested power supply 25, exchange the output power of programmable power supply 21 and the absorbed power of DC Electronic Loads 22 by gpib interface from register read.

In the present embodiment, if the power efficiency of tested power supply 25 is η _effect, then wherein, P _oUTfor exchanging the output power of programmable power supply 21, P _iNfor the absorbed power of DC Electronic Loads 22.If P _oUTfor exchanging the output power of programmable power supply 21 when the electric current of DC Electronic Loads 22 is 50% of tested power supply 25 load current value, then P _iNfor the absorbed power of DC Electronic Loads 22 when the electric current of this DC Electronic Loads 22 is 50% of tested power supply 25 load current value.

Certainly, the present embodiment except by the current settings of DC Electronic Loads 22 be the specified input current of tested power supply 25, rated current 20% and 50% except, can be also other numerical value, be not construed as limiting herein.

(6) load current step overshoot amplitude, the transient recovery time of tested power supply 25, is tested

The present embodiment is after the output voltage determining interchange programmable power supply 21, adjustment passes into the electric current of DC Electronic Loads 22, the test data collection card 232 passing through testing apparatus 23 again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and be depicted as waveform and be presented on the oscillograph 233 of testing apparatus 23, and then obtain load current step overshoot amplitude and the transient recovery time of tested power supply 25.

Fig. 4 shows the present embodiment and tests the load current step overshoot amplitude of tested power supply 25 and the anatomical connectivity figure of transient recovery time.

1, the output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this DC Electronic Loads 22 is 50% of tested power supply 25 load current value, electronic load 22 produces a rising edge by testing apparatus 23, make the current value of DC Electronic Loads 22 by the rated current of tested power supply 25 50% step to tested power supply 25 rated current 100%, refer to Fig. 5.The test data collection card 232 passing through testing apparatus 23 again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and the Vmoniter signal of collection is depicted as waveform is presented on the oscillograph 233 of testing apparatus 23, record overshoot amplitude and the transient recovery time of tested power supply 25, specifically refer to Fig. 6.

2, the output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is 85% of tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this DC Electronic Loads 22 is 50% of tested power supply 25 load current value, produce a rising edge by testing apparatus 23, make the current value of DC Electronic Loads 22 by the rated current of tested power supply 25 50% step to tested power supply 25 rated current 100%.The test data collection card 232 passing through testing apparatus 23 again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and the Vmoniter signal of collection is depicted as waveform, records overshoot amplitude and the transient recovery time of tested power supply 25.

3, the output that testing apparatus 23 controls to exchange programmable power supply 21 by GPIB is 110% of tested power supply 25 nominal input voltage value; The pattern being controlled DC Electronic Loads 22 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this DC Electronic Loads 22 is 50% of tested power supply 25 load current value, produce a rising edge by testing apparatus 23, make the current value of DC Electronic Loads 22 by the rated current of tested power supply 25 50% step to tested power supply 25 rated current 100%.The test data collection card 232 passing through testing apparatus 23 again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and the Vmoniter signal of collection is depicted as waveform, records overshoot amplitude and the transient recovery time of tested power supply 25.

Certainly, the present embodiment, except being except the tested rated voltage of power supply 25,85% of rated voltage and 110% by the power settings of interchange programmable power supply 21, can being also other numerical value, being not construed as limiting herein.

(7) the input voltage step overshoot amplitude of tested power supply 25, transient recovery time, is tested

The present embodiment produces a rising edge by testing apparatus 23, and trigger interchange programmable power supply 21 and export analog power step signal, now, this interchange programmable power supply 21 is as a power amplifier.Wherein, testing apparatus 23 can choose Agilent power supply for generation of a rising edge, exchanges programmable power supply 21 and can choose CHROMA power supply.

Fig. 7 shows input voltage step overshoot amplitude, the anatomical connectivity figure of transient recovery time that the present embodiment tests tested power supply 25.In the figure 7,3 cables that testing apparatus 23 is connected with interchange programmable power supply 21 are GPIB cable, and the rightmost side cable be connected with DC Electronic Loads 22 is GPIB cable.

1, DC Electronic Loads 22 is adjusted, make the output of interchange programmable power supply 21 from the load voltage value step of tested power supply 25 to 110% of tested power supply 25 load voltage value, the test data collection card 232 passing through testing apparatus 23 after time delay certain hour again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and the Vmoniter signal of collection is depicted as waveform is presented on the oscillograph 233 of testing apparatus 23, refer to Fig. 8, according to overshoot amplitude and the transient recovery time of the tested power supply 25 of data recordation of Fig. 8 display.In fig. 8, ordinate V representative voltage, horizontal ordinate t represents the time, and A is general voltage output quantity, T _dfor the transient delay time, T _rfor transient recovery time, T _τfor total transient recovery time.

2, DC Electronic Loads 22 is adjusted, make the output of interchange programmable power supply 21 from the load voltage value step of tested power supply 25 to 85% of tested power supply 25 load voltage value, the test data collection card 232 passing through testing apparatus 23 after time delay certain hour again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and the Vmoniter signal of collection is depicted as waveform is presented on the oscillograph 233 of testing apparatus 23, and record overshoot amplitude and the transient recovery time of tested power supply 25.

(8) the switching on and shutting down characteristic of tested power supply 25, is tested

In the present embodiment, when DC Electronic Loads 22 is operated in the zero load of tested power supply 25, semi-load and full load respectively, makes interchange programmable power supply 21 export step signal, and test the switching on and shutting down characteristic of tested power supply 25.

When being operated in tested power supply 25 unloaded with DC Electronic Loads 22 below, the switching on and shutting down characteristic of testing tested power supply 25 is that example is described.

Testing apparatus 23 produces a rising edge, and trigger interchange programmable power supply 21 and export analog power step signal, now, this interchange programmable power supply 21 is as a power amplifier.Wherein, testing apparatus 23 can choose Agilent power supply for generation of a rising edge, exchanges programmable power supply 21 and can choose CHROMA power supply.When the magnitude of voltage that interchange programmable power supply 21 exports is from 0V step to the ratings of tested power supply 25, the test data collection card 232 passing through testing apparatus 23 after time delay certain hour again gathers the Vmoniter signal of DC Electronic Loads 22 with the sampling rate of 200KHz, and the Vmoniter signal of collection is depicted as waveform is presented on the oscillograph 233 of testing apparatus 23, unused time and the fall time of tested power supply 25 is determined, specifically as shown in Figure 9 according to the oscillogram of oscillograph 233 display.In fig .9, UUT represents tested power supply 25

When DC Electronic Loads 22 is operated in semi-load of tested power supply 25 and full load, to test the switching on and shutting down characteristic of tested power supply 25 similar, do not repeat herein.

(9) ripple and the noise of tested power supply 25, is tested

In the present embodiment, by GPIB control to exchange magnitude of voltage that programmable power supply 21 exports be respectively 110% of the tested load voltage value of power supply 25,85% of load voltage value and load voltage value time, control the electric current of DC Electronic Loads 22 and be respectively the load current value of tested power supply 25 and minimum value to obtain ripple and the noise of tested power supply 25.Wherein, the anatomical connectivity figure testing the ripple of tested power supply 25 and noise as shown in Figure 10, for convenience of explanation, illustrate only part-structure.

The magnitude of voltage exported to control to exchange programmable power supply 21 is below that the load voltage value of tested power supply 25 obtains the ripple of tested power supply 25 and noise is described.

Test macro 23 is the load voltage value of tested power supply 25 by the magnitude of voltage that GPIB control interchange programmable power supply 21 exports, controlling DC Electronic Loads 22 is CC pattern, and the rated current that the electric current passing into this DC Electronic Loads 22 is tested power supply 25 is set, then the interchange shelves of the oscillograph 233 of testing apparatus 23 are adopted to obtain the tested power supply 25 now peak-to-peak value of AC compounent and effective value.Afterwards, regulate the electric current passing into DC Electronic Loads 22 to be the minimum current of tested power supply 25, then adopt the interchange shelves of the oscillograph 233 of testing apparatus 23 to obtain the tested power supply 25 now peak-to-peak value of AC compounent and effective value.

The ripple of the corresponding tested power supply 25 of the peak-to-peak value due to the AC compounent of test process acquisition, and the noise of the corresponding tested power supply 25 of the effective value of AC compounent, ripple and the noise of tested power supply 25 can be obtained after therefore obtaining the peak-to-peak value of tested power supply 25 AC compounent and effective value.

In the present embodiment, to be respectively 85% of load voltage value of this tested power supply 25 and the ripple of 110% of load voltage value and noise similar exchanging magnitude of voltage that programmable power supply 21 exports to test tested power supply 25, do not repeat herein.

In second embodiment of the invention, adopt and exchange programmable power supply 21, DC Electronic Loads 22, comprise embedded controller 231, the testing apparatus 23 of test data collection card 232 and oscillograph 233 forms the detection system of the tested power supply 25 of test, this detection system can detect the output voltage ratings of AC-DC power supply, output current rating, laod stability, voltage stabilized range, voltage-regulation coefficient, efficiency, load current step overshoot amplitude, the load current step transient recovery time, input voltage step overshoot amplitude, the input voltage step transient recovery time, switching on and shutting down characteristic and the performance such as ripple and noise, various performance parameters according to obtaining can judge whether tested power supply 25 meets in nuclear power station work, wherein, the tested power supply 25 of the present embodiment is AC-DC power supply.

embodiment three:

Third embodiment of the invention mainly describes and adopts nuclear power station power detection system 1 to detect DC-to-dc (DC-DC) power supply, when detecting DC-DC power source, programmable power supply 11 is program-control DC power 31, electronic load 12 is DC Electronic Loads 32, and tested power supply 15 is the tested power supply 35 of DC-DC.Detect the structural drawing of DC-DC power source as shown in figure 11.In fig. 11, testing apparatus 33 is connected with program-control DC power 31 by GPIB cable, and in addition, this testing apparatus 33 is also connected with DC Electronic Loads 32 by GPIB, as testing apparatus in Figure 11 33 and the rightest connecting line of DC Electronic Loads 32.For convenience of explanation, Figure 11 illustrate only part related to the present embodiment.

The present embodiment, according to the YD/T732-200 × communication foundation of DC-to-dc modular power source as test DC-DC power source performance, mainly tests test item as shown in table 2:

Table 2:

The method of testing detecting each test item of DC-DC power source is described below respectively:

(1) the input direct voltage variation range of tested power supply 35, is tested

In the present embodiment, testing apparatus 33 exchanges by connecting the nominal input voltage value that output that the GPIB of programmable power supply 31 controls this interchange programmable power supply 31 is tested power supply 35; The pattern being controlled this DC Electronic Loads 32 by the GPIB connecting DC Electronic Loads 32 is CC pattern, and set the load current value that the electric current passing into this DC Electronic Loads 32 is tested power supply 35, then the output voltage ratings of the corresponding tested power supply 35 of the input voltage of this DC Electronic Loads 32, records the output voltage ratings of this tested power supply 35.

By the maximum input voltage that the output of GPIB control program-control DC power 31 is tested power supply 35, record the maximum input voltage of now DC Electronic Loads 32, the maximum output voltage of the corresponding tested power supply 35 of maximum input voltage of this DC Electronic Loads 32; Be the minimum input voltage of tested power supply 35 again by the output of GPIB control program-control DC power 31, record the minimum input voltage of now DC Electronic Loads 32, the minimum output voltage of the corresponding tested power supply 35 of minimum input voltage of this DC Electronic Loads 32.

In the present embodiment, if the maximum output voltage of the output voltage ratings of tested power supply 35 and this tested power supply 35 and with the difference of the minimum input voltage of this tested power supply 35 be all not more than this tested power supply 35 nominal output voltage ± 2%, then judge that tested power supply 35 meets the requirement of nuclear power station in this performance of input direct voltage variation range.

(2) the output voltage setting value of tested power supply 35, is tested

In the present embodiment, testing apparatus 33 exchanges by connecting the nominal input voltage value that output that the GPIB of programmable power supply 31 controls this interchange programmable power supply 31 is tested power supply 35; The pattern being controlled this DC Electronic Loads 32 by the GPIB connecting DC Electronic Loads 32 is CC pattern, and sets the load current value that the electric current passing into this DC Electronic Loads 32 is tested power supply 35, records the input voltage of this DC Electronic Loads 32.

In the present embodiment, if the difference of the rated voltage of the input voltage of DC Electronic Loads 32 and tested power supply 35 be not more than this tested power supply 35 nominal output voltage ± 2%, then judge that tested power supply 35 meets the requirement of nuclear power station in this performance of output voltage setting value.

(3) voltage regulation factor of tested power supply 35, is tested

In the present embodiment, testing apparatus 33 exchanges by connecting the nominal input voltage value that output that the GPIB of programmable power supply 31 controls this interchange programmable power supply 31 is tested power supply 35; The pattern being controlled this DC Electronic Loads 32 by the GPIB connecting DC Electronic Loads 32 is CC pattern, and set the load current value that the electric current passing into this DC Electronic Loads 32 is tested power supply 35, then the output voltage ratings of the corresponding tested power supply 35 of the input voltage of this DC Electronic Loads 32, records the output voltage ratings V of this tested power supply 35 ₀.

1, the output that testing apparatus 33 controls to exchange programmable power supply 31 by GPIB is the maximum voltage value that tested power supply 35 inputs, adjustment passes into minimum current value and the load current value that the electric current of DC Electronic Loads 32 is the load of tested power supply 35 respectively, and records the output voltage of tested power supply 35 under above-mentioned 2 kinds of states.

2, the output that testing apparatus 33 controls to exchange programmable power supply 31 by GPIB is the minimum amount of voltage that tested power supply 35 inputs, adjustment passes into minimum current value and the load current value that the electric current of DC Electronic Loads 32 is the load of tested power supply 35 respectively, and records the output voltage of tested power supply 35 under above-mentioned 2 kinds of states.

Compared with the output voltage ratings of this tested power supply 35 by the output voltage of tested power supply 35 under above-mentioned 4 kinds of states, the voltage that under supposing 4 kinds of states, the deviation of the output voltage of tested power supply 35 and the output voltage ratings of tested power supply 35 is maximum is V _mAX, then the precision of voltage regulation of tested power supply 35 is:

(4) load regulation of tested power supply 35, is tested

In the present embodiment, testing apparatus 33 exchanges by connecting the nominal input voltage value that output that the GPIB of programmable power supply 31 controls this interchange programmable power supply 31 is tested power supply 35; The electric current controlling this DC Electronic Loads 32 by connecting the GPIB of DC Electronic Loads 32 is respectively load current value, the minimum value of load current value, 50% of load current value of tested power supply 35, records the input voltage of this DC Electronic Loads 32 respectively.

Suppose V _b0for the nominal input voltage value of tested power supply 35, V _b1for the output voltage of tested power supply 35 when exporting minimum value electric current, V _b2for the output voltage of tested power supply 35 when exporting load current value, then the load conciliation rate of tested power supply 35 is:

(5) conversion efficiency of tested power supply 35, is tested

In the present embodiment, testing apparatus 33 controls program-control DC power 31 by GPIB and exports the voltage equal with tested power supply 35 load voltage value, and the electric current controlling to pass into DC Electronic Loads 32 is the rated current of tested power supply 35.The output power of programmable power supply 21 and input (or absorption) power of DC Electronic Loads 22 is exchanged from register read more afterwards by gpib interface.

Then the conversion efficiency of tested power supply 35 is:

Wherein, P ₀for exchanging the output power of programmable power supply 21, P ₁for the power input of DC Electronic Loads 22.

(6) transient response of tested power supply 35, is tested

The present embodiment controls program-control DC power 31 by GPIB and exports the voltage identical with tested power supply 35 nominal input voltage value, the output current controlling DC Electronic Loads 32 again from 25% step of tested power supply 35 load current value to 50% of load current value, then from 50% step of load current value to 25% of load current value.Gathered the Vmoniter signal of DC Electronic Loads 32 with the sampling rate of 200KHz by the test data collection card 322 of testing apparatus 33, and the Vmoniter signal of collection is depicted as waveform is presented on the oscillograph 333 of testing apparatus 33, the DATA REASONING shown according to oscillograph 333 goes out the maximal voltage overshoot amplitude of this tested power supply 35 and out-put supply and returns to and meet the time used when the precision of voltage regulation requires.

Certainly, also after can exporting the voltage identical with tested power supply 35 nominal input voltage value controlling program-control DC power 31, control the output current of DC Electronic Loads 32 from 50% step of tested power supply 35 load current value to 75% of load current value, again from 75% step of load current value to 50% of load current value, or control the Spline smoothing that DC Electronic Loads 32 realizes other numerical value, be not construed as limiting herein.

In the present embodiment, if oscillogram is from the peak value moment of voltage jump, return to output voltage finally meet the precision of voltage regulation require time be not more than 400 μ s, and the overshoot of the maximal voltage overshoot amplitude of tested power supply 35 do not exceed this tested power supply 35 out-put supply setting valve ± 5%, then judge that tested power supply 35 meets nuclear power station requirement at this performance item of transient response.

(7) peak-to-peak noise voltage of tested power supply 35, is tested

In the present embodiment, the magnitude of voltage exported by GPIB control program-control DC power 31 is the load voltage value of tested power supply 35, controlling DC Electronic Loads 32 is CC pattern, and the electric current arranging DC Electronic Loads 32 is the load current value of tested power supply 35, then the interchange shelves of the oscillograph 233 of testing apparatus 23 are adopted to obtain peak-to-peak value and the effective value of tested power supply 35 AC compounent.

In third embodiment of the invention, adopt program-control DC power 31, DC Electronic Loads 32, comprise embedded controller 331, the testing apparatus 33 of test data collection card 332 and oscillograph 333 forms the detection system of the tested power supply 35 of test, this detection system can detect the input direct voltage variation range of DC-DC power source, output voltage setting value, voltage regulation factor, load regulation, conversion efficiency, the performance such as transient response and peak-to-peak noise voltage, various performance parameters according to obtaining can judge whether tested power supply 35 meets in nuclear power station work, wherein, the tested power supply 35 of the present embodiment is DC-DC power source.

embodiment four:

Fourth embodiment of the invention mainly describes and adopts nuclear power station power detection system 1 to detect AC-AC (AC-AC) power supply, when detecting AC-AC power supply, programmable power supply 11 is for exchanging programmable power supply 41, electronic load 12 is alternating current electronic load 42, and tested power supply 15 is the tested power supply 45 of AC-AC.Detect the structural drawing of AC-AC power supply as shown in figure 12.In fig. 12, testing apparatus 43 is connected with interchange programmable power supply 41 and alternating current electronic load 42 by GPIB cable.For convenience of explanation, Figure 12 illustrate only part related to the present embodiment.

The present embodiment according to GB/T15290-1994 electronic equipment power transformer and the total technical conditions of the smoothing choke foundation as test AC-AC power source performance, the test item that main test is as shown in table 3:

Table 3:

The method of testing of the load characteristic detecting AC-AC power supply is described below:

1, testing apparatus 43 is the minimum operating voltage of tested power supply 45 by the output of GPIB control interchange programmable power supply 41, the pattern being controlled alternating current electronic load 42 by GPIB is constant current (CC) pattern, and the electric current that setting passes into this alternating current electronic load 42 is respectively the zero load of tested power supply 45, semi-load and fully loaded, then record alternating current electronic load 42 respectively in the input voltage value of above-mentioned three state and input current value.

2, the output controlling to exchange programmable power supply 41 is operating voltage and the maximum operating voltage of tested power supply 45, repeats above-mentioned 1 step, obtains corresponding magnitude of voltage and current value.

Further, if tested power supply 45 requires that its load is necessary for power resistor, then nuclear power station power detection system 1 also comprises power resistor.

embodiment five:

Fifth embodiment of the invention mainly describes and adopts nuclear power station power detection system 1 to detect DC-AC (DC-AC) power supply, when detecting DC-AC power supply, programmable power supply 11 is program-control DC power 51, electronic load 12 is alternating current electronic load 52, its input voltage frequency is DC ~ 440Hz, tested power supply 15 is the tested power supply 55 of DC-AC, output voltage frequency lower than 440Hz, also referred to as inverter.Detect the structural drawing of DC-AC power supply as shown in figure 13.In fig. 13, testing apparatus 53 is connected with program-control DC power 51 and alternating current electronic load 52 by GPIB cable, wherein passes through the connection of GPIB cable and alternating current electronic load 52 as the comparatively right side line of Figure 13.For convenience of explanation, Figure 13 illustrate only part related to the present embodiment.

The present embodiment according to GB20321.2-2006-T from net type wind energy, the solar power system test method of the inverter part 2 foundation as test DC-AC power source performance, the test item that main test is as shown in table 4:

Table 4:

The method of testing detecting each performance of DC-AC power supply is described below respectively:

(1) output voltage, the output frequency of tested power supply 55, is tested

In the present embodiment, testing apparatus 53 controls this program-control DC power 51 output by connecting the GPIB of program-control DC power 51 is the nominal input voltage value of tested power supply 55; The pattern being controlled this alternating current electronic load 52 by the GPIB connecting alternating current electronic load 52 is constant current (CC) pattern, and setting the load current value that the electric current passing into this alternating current electronic load 52 is tested power supply 55, the power that tested power supply 55 is exported is rated power.Due to the input voltage of this alternating current electronic load 52, the output voltage ratings of the corresponding tested power supply 55 of input current difference and output current rating, therefore directly read the load of alternating current electronic load 52 by GPIB, obtain output voltage, the output frequency of tested power supply 55.The output controlling program-control DC power 51 is more respectively 85% and 120% of tested power supply 55 nominal input voltage, repeats above-mentioned steps to obtain output voltage, the output frequency of tested power supply 55.Certainly, except 85% and 120%, also can control the output voltage of program-control DC power 51 for other values, be not construed as limiting herein.

(2) grade of load of tested power supply 55, is tested

In the present embodiment, testing apparatus 53 controls this program-control DC power 51 output by connecting the GPIB of program-control DC power 51 is the nominal input voltage value of tested power supply 55; The pattern being controlled this alternating current electronic load 52 by the GPIB connecting alternating current electronic load 52 is constant current (CC) pattern, and sets the load current value that the electric current passing into this alternating current electronic load 52 is tested power supply 55; After end is set, directly read the load of alternating current electronic load 52 by GPIB, obtain the output voltage of tested power supply 55.Finally keep the output voltage of program-control DC power 51 constant, then the load controlling alternating current electronic load 52 is respectively 125% and 150% of tested power supply 55 rated current, repeats above-mentioned steps to obtain the output voltage of tested power supply 55.Certainly, except 125% and 150%, also can control the load of alternating current electronic load 52 for other values, be not construed as limiting herein.

(3) open circuit loss of tested power supply 55, is tested

In the present embodiment, testing apparatus 53 controls this program-control DC power 51 output by connecting the GPIB of program-control DC power 51 is the nominal input voltage value of tested power supply 55; The output being controlled this alternating current electronic load 52 by the GPIB connecting alternating current electronic load 52 is exported for unloaded, and reads the output power of this alternating current electronic load 52, obtains the open circuit loss of tested power supply 55.

(4) output waveform of tested power supply 55, is tested

In the present embodiment, testing apparatus 53 controls this program-control DC power 51 output by connecting the GPIB of program-control DC power 51 is the nominal input voltage value of tested power supply 55; This alternating current electronic load 52 is controlled for rated power output by the GPIB connecting alternating current electronic load 52.

The oscillograph card of oscillograph 533 is adopted to read half peak value and the odd harmonic value of sine value corresponding to tested power supply 55 output voltage, and determine peak-to-peak value and the noise of this square wave according to the square wave figure being presented at oscillograph 533, thus determine the output waveform of tested power supply 55.Such as, according to oscillograph card read sine value corresponding to tested power supply 55 output voltage half peak value and, three, the square wave figure that obtains of quintuple harmonics value as shown in figure 14, according to the square wave figure of Figure 14 determine a, b value in figure and

(5) efficiency of tested power supply 55, is tested

In the present embodiment, testing apparatus 53 controls this program-control DC power 51 output by connecting the GPIB of program-control DC power 51 is the nominal input voltage value of tested power supply 55; This alternating current electronic load 52 is controlled for rated power output by the GPIB connecting alternating current electronic load 52.Read the output power of program-control DC power 51 again by GPIB, read the power input of alternating current electronic load 52, and then obtain the loss power of alternating current electronic load 52, the final efficiency obtaining tested power supply 55.

As a preferred embodiment of the present invention, when the output voltage of tested power supply 55 is higher than 440Hz, electronic load 12 is power resistor, and the hardware configuration of nuclear power station power detection system 1 connects as shown in figure 15, detects the respective performances of tested power supply according to this syndeton.

In fifth embodiment of the invention, program-control DC power 51, alternating current electronic load 52, testing apparatus 53 is adopted to form the detection system of the tested power supply 55 of test, this detection system can detect output voltage, output frequency, the grade of load, open circuit loss, the performance such as output waveform and efficiency of DC-AC power supply, various performance parameters according to obtaining can judge whether tested power supply 55 meets in nuclear power station work, wherein, the tested power supply 55 of the present embodiment is DC-AC power supply.

embodiment six:

As a preferred embodiment of the present invention, nuclear power station power detection system 1 also comprises rack, and for installing programmable power supply 11, electronic load 12, the testing apparatus 13 of nuclear power station power detection system 1, this rack has multiple interlayer, there is certain distance between each interlayer, be beneficial to heat radiation.

In the present embodiment, on rack, the spacing of each interlayer can be equal, also can not wait, and is all such as 1U or 2U etc., is not construed as limiting herein.When only needing the power supply of test one type, only need use a rack, when needing the power supply testing Four types simultaneously, needing use 3 racks.Be NI testing apparatus for testing apparatus 13, specifically refer to Figure 16, in figure 16, comprise 1 switch board, 2 test cabinets, switch board is mainly used in installing the hardware with controlling functions, such as the NI embedded controller 131 etc. of programmable power supply 11, NI testing apparatus 13.

As a preferred embodiment of the present invention, nuclear power station power detection system 1 also comprises: printer, and this printer is used for the test data that database 14 stores being printed in form mode.

In the present embodiment, printer connection data storehouse 14, and print the test data of this database 14, make test man check the test data of tested power supply more intuitively and easily.

As a preferred embodiment of the present invention, nuclear power station power detection system 1 also comprises: the over-current protecting unit of tested power supply 15.The over-current protecting unit of this tested power supply 15 is for detecting input current, input voltage, output current, the output voltage of tested power supply 15; and after exceeding default ratings any one of the input current detected, input voltage, output current, output voltage, the power supply (programmable power supply 11) cutting off tested power supply 15 exports and cuts off electronic load 12 load.Further, underproof tested power supply 15 is reported to the police.Certainly, also can carry out overcurrent, overvoltage, overheated and short-circuit protection to programmable power supply 11 and electronic load 12, be not construed as limiting herein.

As a preferred embodiment of the present invention, nuclear power station power detection system 1 also comprises: temperature sensor.This temperature sensor for gathering the temperature of tested power supply 15, and after the temperature gathered exceeds default temperature value, cuts off nuclear power station power detection system 1 power supply.Further, the tested power supply 15 that temperature is too high is reported to the police.The power supply of the present embodiment belongs to power device, and thermal value is comparatively large, the easy damage equipment of too high temperature.In order to the safe operation of proterctive equipment, this nuclear power station power detection system 1 have employed temperature sensor collecting temperature, and such as damage at rack sending out the hot fan and cause temperature too high, after exceeding default temperature value, equipment will carry out power-off protection.Wherein, in the collection point of rack as shown in figure 17 but be not limited to Figure 17, in fig. 17, whole rack is of a size of 38Unit to temperature sensor.

As a preferred embodiment of the present invention, nuclear power station power detection system 1 also comprises: ground protection unit.This ground protection unit, for the grounded parts of programmable power supply 11, electronic load 12 and tested power supply 15 is connected to corresponding protective ground terminal, has protective ground to connect to ensure to need the equipment of ground connection.Further, protective ground conductor is greater than 5mm ², the color of protective ground conductor is greenish-yellow double-colored.

As a preferred embodiment of the present invention, nuclear power station power detection system 1 also comprises: insulation protection unit.This insulation protection unit is used for carrying out corresponding Leakage Current process to programmable power supply 11, electronic load 12 and tested power supply 15 as required.In the present embodiment, choose the insulating material protection nuclear power station power detection system 1 with enough insulating property, and according to the difference of range of application, Leakage Current is limited in and does not affect within safe ultimate value.

embodiment seven:

In order to detect the properties of tested power supply 15 more accurately, the present embodiment adopts nuclear power station power detection system 1 to carry out long-time run with load to tested power supply 15, and namely carry out strike-machine detection to tested power supply 15, corresponding system construction drawing as shown in figure 18.Wherein, tested power supply 15 comprises above-mentioned AC-DC power supply, DC-DC power, AC-DC power supply, DC-AC power-supply 4 kinds of power supplys.Testing apparatus 13 gathers voltage, the current output value of tested power supply 15 from Vmoniter and the Imoniter end of electronic load 12, the temperature value of tested power supply 15 is gathered from temperature sensor, the ripple of tested power supply 15 is obtained from oscillograph, and the voltage collected, electric current, ripple, temperature value are depicted as curve, the test data of more tested power supply 15 and default qualified data, to judge whether tested power supply 15 normally works.Further, when tested power supply 15 breaks down, there is the moment in record trouble, and time precision is differentiated to millisecond, and after the fault recovery of tested power supply 15 is normal, also record recovers the moment.

Further, this nuclear power station power detection system 1 also comprises man-machine interface, the test condition that this man-machine interface exports for receiving test man, according to the corresponding test data of play-back command playback received and the duty showing tested power supply 15.Such as, if tested power supply 15 recovers again normal after breaking down in strike-machine process, then amber light is shown; If tested power supply 15 is in malfunction for a long time, then show red light etc., certainly, the color of display lamp can be changed as required, is not construed as limiting herein.

In seventh embodiment of the invention, when tested power supply 15 is DC output power, if with the output DC voltage value of this tested power supply 15 of 40Hz sampling rate acquisition, current value in preset range, then judge that this tested power supply 15 is qualified; When tested power supply 15 is for exchanging out-put supply, if be the effective value dividing equally 40 waveforms per second with the waveform effective value of 100 sampling rates acquisitions of this tested power supply 15 output frequency, then judge that this tested power supply 15 is qualified; When tested power supply 15 is for pulse out-put supply (5KHz), if with the output voltage peak-to-peak value of 10 sampling rates acquisitions of this tested power supply 15 output frequency, output current peak-to-peak value in preset range, then judge that this tested power supply 15 is qualified.

embodiment eight:

Figure 19 shows the nuclear power station power detecting method that eighth embodiment of the invention provides, and details are as follows:

Step S201, exports voltage magnitude, the frequency of tested power supply to by the embedded controller controls programmable power supply of testing apparatus, and controls the current value passing into electronic load, makes the current value passing into this electronic load equal to pass into the current value of this tested power supply.

In the present embodiment, embedded controller sends steering order to programmable power supply, corresponding voltage magnitude, frequency is exported to tested power supply according to the steering order received to make this programmable power supply, simultaneously, this embedded controller also controls the current value passing into electronic load, and the current value wherein passing into electronic load equals the current value passing into this tested power supply.

Step S202, gathers the corresponding test data of test data as this tested power supply of this electronic load by the test data collection card of testing apparatus, and by the test data of collection stored in database.

Step S203, detects the performance of tested power supply according to the test data stored in database.

In the present embodiment, after corresponding test voltage signal, current signal are inputted to tested power supply, the embedded controller of testing apparatus sends the test data collection card of acquisition instructions to this testing apparatus, and this test data collection card gathers the input signal of tested power supply and the output signal of this tested power supply according to the acquisition instructions received again.Wherein, the input signal of tested power supply and the output signal of tested power supply comprise voltage input signal, current input signal, voltage output signal, current output signal etc.After the test data obtaining tested power supply, by the test data of acquisition stored in database, the test data of acquisition is compared with qualified power parameter, and then judges whether the performance of this tested power supply meets the requirements.

In eighth embodiment of the invention, the performance condition of tested power supply can be known according to the test data of the tested power supply obtained, therefore, it is possible to judge whether tested power supply is still applicable to continuing in nuclear power station work, or the power supply whether tested power supply 15 can break down in replacing nuclear power station can be judged, thus ensure that nuclear power station can reliably, safely run after more new power.

embodiment nine:

Ninth embodiment of the invention mainly describes when tested power supply is respectively AC-DC power supply, DC-DC power, AC-DC power supply, DC-AC power-supply, and how to obtain the test data of above-mentioned 4 type power supplys, details are as follows:

One, when this tested power supply is AC-DC power supply:

In the present embodiment, when detecting AC-DC power supply, by exchanging programmable power supply output voltage amplitude, frequency to tested power supply, and regulates the input voltage of DC Electronic Loads, electric current and the oscillograph by testing apparatus to obtain the test data of this AC-DC power supply.Wherein, the test data of acquisition comprises following at least one item: the output voltage ratings of AC-DC power supply, output current rating, laod stability, voltage stabilized range, voltage-regulation coefficient, efficiency, load current step overshoot amplitude, load current step transient recovery time, input voltage step overshoot amplitude, input voltage step transient recovery time, switching on and shutting down characteristic and ripple and noise.The concrete acquisition methods of each test data is identical with embodiment two, repeats no more herein.

Two, when tested power supply is DC-DC power:

In the present embodiment, when detecting DC-DC power, by program-control DC power, DC Electronic Loads and comprise the test data that oscillographic testing apparatus obtains this DC-DC power.Wherein, this test data comprises at least one item of input direct voltage variation range, output voltage setting value, voltage regulation factor, load regulation, conversion efficiency, transient response and peak-to-peak noise voltage, the concrete acquisition methods of each test data is identical with embodiment three, repeats no more herein.

Three, when tested power supply is AC-AC power supply:

In the present embodiment, when detecting AC-AC power supply, obtain the test data of this AC-AC power supply by exchanging programmable power supply, alternating current electronic load and testing apparatus.Wherein, the test data of this AC-AC power supply comprises the load characteristic of this AC-DC power supply, and concrete acquisition methods is identical with embodiment four, repeats no more herein.

Four, when tested power supply is DC-AC power-supply:

In the present embodiment, be divided into 2 kinds of situations when detecting DC-AC power-supply, a kind of be the output voltage frequency of DC-AC power-supply lower than 440Hz, a kind of is that the output voltage frequency of DC-AC power-supply is higher than 440Hz.

When the output voltage frequency of DC-AC power-supply is lower than 440Hz, by program-control DC power, alternating current electronic load and comprise the test data that oscillographic testing apparatus obtains this DC-AC power-supply; When the output voltage frequency of this DC-AC power-supply is higher than 440Hz, by program-control DC power, power resistor and comprise the test data that oscillographic testing apparatus obtains this DC-AC power-supply.In the present embodiment, no matter the output voltage frequency of DC-AC power-supply is lower than 440Hz or higher than 440Hz, all should obtain at least one test data of the output voltage of this tested power supply, output frequency, the grade of load, open circuit loss, output waveform and efficiency, concrete acquisition methods detailed in Example five, repeats no more herein.

In the present embodiment, detect the different performance item of this tested power supply according to the difference of tested power supply model, and then judge whether this tested power supply is meet the qualified power supply in nuclear power station work according to the performance item detected.

Further, require higher based on nuclear power station to the stability of power supply, long run with load can be carried out to tested power supply, namely strike-machine be carried out to tested power supply, thus filter out the more stable power supply of performance from the tested power supply after above-mentioned test.Wherein, the tested power supply of the present embodiment comprises AC-DC power supply, DC-DC power, AC-AC power supply, DC-AC power-supply.

In the present embodiment, after long-time run with load is carried out to tested power supply, the strike-machine data of this tested power supply are obtained from electronic load, and stability, the reliability of this tested power supply is judged according to the strike-machine data obtained, in addition, the degree of aging of this tested power supply can also be judged according to the strike-machine data obtained.Wherein, the strike-machine data of the present embodiment comprise at least one item of the output voltage of this tested power supply, electric current and ripple.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims

1. nuclear power station power detection system, is characterized in that, described system comprises programmable power supply, electronic load, testing apparatus, database, tested power supply;

Described test data collection card gathers the corresponding test data of test data as described tested power supply of described electronic load, and by the test data of collection stored in described database, to judge the performance of tested power supply according to the test data of described database purchase, described test data is relevant with the classification belonging to tested power supply.

2. nuclear power station power detection system as claimed in claim 1, is characterized in that, when described tested power supply is AC-DC power supply,

Described programmable power supply is for exchanging programmable power supply, and described electronic load is DC Electronic Loads;

Described testing apparatus also comprises oscillograph.

3. nuclear power station power detection system as claimed in claim 2, it is characterized in that, the test data of described AC-DC power supply at least comprises following any one:

Output voltage ratings, output current rating, laod stability, voltage stabilized range, voltage-regulation coefficient, efficiency, load current step overshoot amplitude, load current step transient recovery time, input voltage step overshoot amplitude, input voltage step transient recovery time, switching on and shutting down characteristic and ripple and noise.

4. nuclear power station power detection system as claimed in claim 1, is characterized in that, when described tested power supply is DC-DC power,

Described programmable power supply is program-control DC power, and described electronic load is DC Electronic Loads;

Described testing apparatus also comprises oscillograph.

5. nuclear power station power detection system as claimed in claim 4, it is characterized in that, the test data of described DC-DC power at least comprises following any one:

Input direct voltage variation range, output voltage setting value, voltage regulation factor, load regulation, conversion efficiency, transient response and peak-to-peak noise voltage.

6. nuclear power station power detection system as claimed in claim 1, is characterized in that, when described tested power supply is AC-AC power supply,

Described programmable power supply is for exchanging programmable power supply, and described electronic load is alternating current electronic load.

7. nuclear power station power detection system as claimed in claim 6, it is characterized in that, the test data of described AC-AC power supply comprises the load characteristic of described AC-AC power supply.

8. nuclear power station power detection system as claimed in claim 1, it is characterized in that, be DC-AC power-supply at described tested power supply, and the output voltage frequency of described DC-AC power-supply lower than 440Hz time,

Described programmable power supply is program-control DC power, and described electronic load is alternating current electronic load;

Described testing apparatus also comprises oscillograph.

9. nuclear power station power detection system as claimed in claim 1, it is characterized in that, be DC-AC power-supply at described tested power supply, and the output voltage frequency of described DC-AC power-supply higher than 440Hz time,

Described programmable power supply is program-control DC power, and described electronic load is power resistor;

Described testing apparatus also comprises oscillograph.

10. nuclear power station power detection system as claimed in claim 8 or 9, it is characterized in that, the test data of described DC-AC power-supply at least comprises following any one:

Output voltage, output frequency, the grade of load, open circuit loss, output waveform and efficiency.

11. nuclear power station power detection systems as described in any one of claim 1 to 9, it is characterized in that, described system also comprises: the rack with multiple interlayer.

12. nuclear power station power detection systems as claimed in claim 11, it is characterized in that, described system also comprises:

Gather the temperature sensor of tested power source temperature.

The nuclear power station power detecting method of 13. employing nuclear power station power detection systems, it is characterized in that, described method comprises:

14. nuclear power station power detecting methods as claimed in claim 13, is characterized in that,

When described tested power supply is AC-DC power supply, by exchanging programmable power supply, DC Electronic Loads and comprising the test data that oscillographic testing apparatus obtains described AC-DC power supply;

The test data of described AC-DC power supply comprises at least one item of output voltage ratings, output current rating, laod stability, voltage stabilized range, voltage-regulation coefficient, efficiency, load current step overshoot amplitude, load current step transient recovery time, input voltage step overshoot amplitude, input voltage step transient recovery time, switching on and shutting down characteristic and ripple and noise.

15. nuclear power station power detecting methods as claimed in claim 13, is characterized in that,

When described tested power supply is DC-DC power, by program-control DC power, DC Electronic Loads and comprise the test data that oscillographic testing apparatus obtains described DC-DC power;

Described test data comprises at least one item of input direct voltage variation range, output voltage setting value, voltage regulation factor, load regulation, conversion efficiency, transient response and peak-to-peak noise voltage.

16. nuclear power station power detecting methods as claimed in claim 13, is characterized in that,

When described tested power supply is AC-AC power supply, obtain the test data of described AC-AC power supply by exchanging programmable power supply, alternating current electronic load and testing apparatus;

The test data of described AC-AC power supply comprises the load characteristic of described AC-AC power supply.

17. nuclear power station power detecting methods as claimed in claim 13, is characterized in that,

Be DC-AC power-supply at described tested power supply, and the output voltage frequency of described DC-AC power-supply lower than 440Hz time, by program-control DC power, alternating current electronic load and comprise the test data that oscillographic testing apparatus obtains described DC-AC power-supply;

Be DC-AC power-supply at described tested power supply, and the output voltage frequency of described DC-AC power-supply higher than 440Hz time, by program-control DC power, power resistor and comprise the test data that oscillographic testing apparatus obtains described DC-AC power-supply;

Described test data comprises at least one item of output voltage, output frequency, the grade of load, open circuit loss, output waveform and efficiency.

18. nuclear power station power detecting methods as described in any one of claim 13 to 17, is characterized in that,

Carry out long-time run with load to tested power supply, obtain the strike-machine data of described tested power supply, described strike-machine data comprise at least one item of the output voltage of described tested power supply, electric current and ripple;

Described tested power supply comprises AC-DC power supply, DC-DC power, AC-AC power supply, DC-AC power-supply.