CN101741105A - Power system and detection method thereof - Google Patents
Power system and detection method thereof Download PDFInfo
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- CN101741105A CN101741105A CN 200810173566 CN200810173566A CN101741105A CN 101741105 A CN101741105 A CN 101741105A CN 200810173566 CN200810173566 CN 200810173566 CN 200810173566 A CN200810173566 A CN 200810173566A CN 101741105 A CN101741105 A CN 101741105A
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Abstract
The invention relates to a power system which can really detect the position of a fault and a detection method thereof. The power system comprises a plurality of parallel energy storage series, a control unit and a detection unit, wherein each energy storage series comprises a test switch and a plurality of energy storage devices, the test switch and the energy storage devices are in serial connection; each energy storage device comprises a energy storage unit, an operating switch and an isolating switch; the detection unit detects each energy storage series to judge which energy storage series has a fault and which energy storage unit of each energy storage device in the fault energy storage series has a fault; and the control unit separately controls all switches to switch between a conductive state and a nonconductive state. The detection method comprises the following steps: detecting each energy storage series to judge which one has a fault; and for a fault energy storage series, individually detecting each energy storage device in the energy storage series to judge which one has a fault. The system and method of the invention can fast detect the fault energy storage unit under the condition that the number of the energy storage units is large; in addition, only the fault energy storage unit is needed to be replaced without replacing a single serial group or all the power system, thus greatly saving the cost.
Description
Technical field
The present invention relates to a kind of power-supply system and detection method thereof, particularly relate to a kind of power-supply system and detection method thereof that can detect guilty culprit really.
Background technology
Energy-storage travelling wave tube extensively applies to products such as home appliance, handheld apparatus (for example: mobile phone (Mobile Phone), personal digital assistant etc.) and the vehicles now, to satisfy the demand of people to the separate energy source system.The energy-storage travelling wave tube of narrow sense mainly refers to battery, comprises primary cell and secondary cell product; The energy-storage travelling wave tube of broad sense is then made a general reference all elements that possess energy-storage function, comprises the electric capacity and the inductance of temporary energy storage, also has in a kind of super capacitor (Supercapacitor) between between battery and electric capacity is also included within.
Electric capacity is to come energy storage with the electrical potential energy form of physical reactions, and is comparatively simple on making, and have that the speed of discharging and recharging is fast, the characteristic of high power density, but the effect of physics energy storage but not good (being that stored energy capacitance is less), so can only be used as of short duration energy storage.
Battery can be divided into primary cell and secondary cell.Primary cell only can use once, can't replenish by the mode of charging again and be transformed the chemical energy of falling.And secondary cell mainly is if utilize the mode of chemical energy to carry out store energy, therefore its store energy density will obviously be better than general electric capacity, and can be applicable to various electric power supply apparatus, but at the same time, the moment electric power output that it can produce can be subject to chemical reaction rate, therefore can't discharge and recharge or carry out high power output fast, and capacity can descend after repeatedly discharging and recharging, even do not use for a long time, also have the problem that capacity descends.
Super capacitor is a kind of element between battery and electric capacity, be called electric double layer capacitance (Electrical Double-Layer Capacitor) again, by the energy storage of part physics, the chemical energy storage framework of part, its power density and energy density are between battery and electric capacity.But, super capacitor has chemical characteristic because having chemical material, and leaky is arranged easily, add that again because also have part be the fast phenomenon of the velocity of discharge of physical characteristic, will soon not have electricity under aforementioned two kinds of factors, and be subject to electrolytical decomposition voltage (water system electrolyte 1V, the about 2.5V of organic bath), so its proof voltage is low, add the cost impact that is subjected to electrode material, super capacitor has than other electric capacity, price energy ratio that battery is high.
The technology of energy-storage travelling wave tube in the past, all can't reach the advantages such as output, fast charging and discharging of long (high charge-discharge number of times), high-energy storage density of life-span, transient high power simultaneously, and present secondary cell and super capacitor all need the mode store electrical energy of electrolyte with chemistry, and can't make down at general semiconductor fabrication process (processing procedure) now, therefore in case after encapsulation is finished, the capacity of its store electrical energy is not easy to change, and the circuit that periphery is relevant does not more have elasticity yet in planning, progress greatly so conventional art still can improve.
In addition, the vehicles that for example need big electric energy, its energy storage device for the entity phase configuration, it often all is series connection, a plurality of energy-storage travelling wave tubes in parallel form it and just use after an array formula is arranged, but when the energy-storage travelling wave tube that this array of test is arranged, it adopts method can only test whole electric weight or single series circuit has inerrancy, and when having tested out the electric weight mistake, Chang Yinwei quantity can't definitely learn it is that energy-storage travelling wave tube generation problem too much, therefore the energy-storage travelling wave tube of whole array all can only be changed, and be caused reaching in the use waste on the cost.
This shows that above-mentioned existing power-supply system and detection method thereof obviously still have inconvenience and defective, and demand urgently further being improved in product structure, detection method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product and method do not have appropriate structure and method to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of new power-supply system and detection method thereof, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective that existing power-supply system and detection method thereof exist, and provide a kind of new power-supply system and detection method thereof, technical problem to be solved provides power-supply system and the detection method thereof that a kind of energy actual detected has which the energy-storage travelling wave tube fault in the array, is very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of power-supply system that the present invention proposes, this power-supply system comprises: the energy storage string of a plurality of parallel connections, each energy storage string comprise a Test Switchboard and a plurality of energy storage device of series connection; Each energy storage device has the isolating switch of an energy-storage units in order to store electrical energy, operating switch of connecting with this energy-storage units and and this energy-storage units of connecting and this operating switch parallel connection; A detecting unit is detected each energy storage string, judges out of order energy storage string, and detects the energy-storage units fault of which energy storage device in the fault energy storage string again; And a control unit, according to the test phase difference of this detecting unit, this control unit can be controlled described Test Switchboard, described operating switch according to this respectively, and described isolating switch, and each switch is switched between conducting state and the nonconducting state.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, aforesaid power-supply system, wherein said energy-storage units wherein each energy-storage units is a magnetic capacitance unit.
Preferably, aforesaid power-supply system, when wherein said detecting unit is detected this energy storage string when this detecting unit, the Test Switchboard conducting of the energy storage string in this control unit control detecting, and other not conductings of Test Switchboard, and all working switch conduction of the energy storage string in the control detecting, and all not conductings of isolating switch of the energy storage string in the control detecting.
Preferably, aforesaid power-supply system, when wherein said detecting unit is detected this energy storage device when this detecting unit, the Test Switchboard conducting of the pairing energy storage string of energy storage device in this control unit control detecting, and other not conductings of Test Switchboard, and the not conducting of isolating switch and the operating switch conducting of the energy storage device in the control detecting, and other isolating switch conductings and other not conductings of operating switch in the pairing energy storage string of energy storage device in the control detecting.
Preferably, aforesaid power-supply system, whether wherein said energy-storage units is at each energy storage string of test before the fault, this control unit is earlier with all Test Switchboards and all conductings of all working switch, and all not conductings of isolating switch, and whether have fault to take place by the test of this detecting unit, if when having fault to take place, then detect respectively again and then to each energy storage string.
Preferably, aforesaid power-supply system, wherein said magnetic capacitance unit is a single magnetic capacitance, or by a plurality of magnetic capacitances with series, parallel or mix the magnetic capacitance group that series-parallel system is formed.
Preferably, aforesaid power-supply system, wherein said magnetic capacitance includes one first magnetic pole, second magnetic pole and is arranged at therebetween a dielectric layer, has magnetic dipole in this first magnetic pole and second magnetic pole to suppress the leakage current of this magnetic capacitance.
Preferably, aforesaid power-supply system, wherein said first magnetic pole includes: one first magnetosphere has the magnetic dipole that is arranged in first direction; One second magnetosphere, the magnetic dipole with the second direction of being arranged in; And a separator, include nonmagnetic substance, be arranged between this first magnetosphere and this second magnetosphere; This first direction and this second direction are reverse each other, to suppress the leakage current of this magnetic capacitance.
Preferably, aforesaid power-supply system, wherein said first magnetic pole and second magnetic pole are to include rare earth element, this dielectric layer is made of titanium oxide, barium monoxide titanium or semi-conductor layer.
Preferably, aforesaid power-supply system, wherein said semiconductor layer is a silica.
The object of the invention to solve the technical problems also realizes by the following technical solutions.A kind of detection method according to the present invention's proposition, be applicable to and detect whether fault of a power-supply system, this power-supply system comprises the energy storage string of a plurality of parallel connections, and each energy storage string has the energy storage device of a plurality of series connection, and wherein this detection method comprises following steps: (A). detect whether fault of each energy storage string; And (B). to out of order energy storage string, detect each energy storage device fault whether in this energy storage string one by one.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Preferably, aforesaid detection method, each energy storage string of wherein said energy storage string also comprises a Test Switchboard of connecting with described energy storage device, and each energy storage device comprises an energy-storage units, one operating switch of connecting with this energy-storage units and one with the isolating switch of this energy-storage units of connecting and this operating switch parallel connection, in the described step (A), comprise that also first conducting is in the Test Switchboard of the energy storage string in the detection, and the non-Test Switchboard that is in the energy storage string in the detection of not conducting, and in step (A), comprise that also first conducting is in all working switch of the energy storage string in the detection, and not conducting is in all isolating switches of the energy storage string in the detection.
Preferably, aforesaid detection method, each energy storage string of wherein said energy storage string also comprises a Test Switchboard of connecting with described energy storage device, and each energy storage device comprises an energy-storage units, one operating switch of connecting with this energy-storage units and one with the isolating switch of this energy-storage units of connecting and this operating switch parallel connection, in the described step (B), comprise that also first conducting is in the operating switch of the energy storage device in the detection, and not conducting is in the isolating switch of the energy storage device in the detection, and the non-isolating switch that is in the energy storage device in the detection of conducting, and the non-operating switch that is in the energy storage device in the detection of not conducting, and in step (B), comprise that also first conducting is in the Test Switchboard of the pairing energy storage string of energy storage device in the detection, and make other not conducting of Test Switchboard.
Preferably, aforesaid detection method, whether it: detecting this power-supply system integral body has fault if also comprising one in described step (A) step before.
Preferably, aforesaid detection method, each energy storage string of wherein said energy storage string also comprises a Test Switchboard of connecting with described energy storage device, and each energy storage device comprise an energy-storage units, an operating switch of connecting with this energy-storage units and one with the isolating switch of this energy-storage units of connecting and this operating switch parallel connection, when whether this power-supply system integral body of detection has fault, earlier with all Test Switchboards and all conductings of all working switch, and make all not conductings of isolating switch.
The present invention compared with prior art has tangible advantage and beneficial effect.By technique scheme, power-supply system of the present invention and detection method thereof have following advantage and beneficial effect at least: even effect of the present invention is under the many situations of energy-storage units numbers of poles, still can detect out of order energy-storage units fast, and only need replace this energy-storage units of fault, and must single series connection group or replace whole power-supply system, therefore can significantly save cost.
In sum, the invention relates to a kind of power-supply system and detection method thereof.The power-supply system that this can detect guilty culprit really comprises a plurality of energy storage strings in parallel, a control unit, and a detecting unit.Each energy storage string comprises a Test Switchboard and a plurality of energy storage device of series connection.Each energy storage device has an energy-storage units, an operating switch and an isolating switch.This detecting unit is detected each energy storage string, judges out of order energy storage string, and detects the energy-storage units fault of which energy storage device in the fault energy storage string again.This control unit is controlled all switches respectively and is switched between conducting and nonconducting state.The present invention has also disclosed a kind of detection method that is used for this power-supply system.This detection method comprises following steps: detect whether fault of each energy storage string; To out of order energy storage string, detect each energy storage device fault whether in this energy storage string more one by one.Which energy-storage travelling wave tube that the present invention can actual detected goes out in the array breaks down, and is very suitable for practicality.The present invention has obvious improvement technically, and has obvious good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the circuit diagram of power-supply system preferred embodiment of the present invention.
Fig. 2 is the magnetic capacitance of present embodiment and other comparison schematic diagram of store energy media in the past.
Fig. 3 is the structural representation of magnetic capacitance in the present embodiment.
Fig. 4 is the structural representation of first magnetic pole among another embodiment of magnetic capacitance of present embodiment.
Fig. 5 is the schematic diagram of a magnetic capacitance unit group in another embodiment of the present invention.
Fig. 6 is the circuit diagram of this preferred embodiment of the present invention, and the schematic diagram of energy storage device is described.
Fig. 7 is the circuit diagram of this preferred embodiment of the present invention, and the state of the test first energy storage string is described.
Fig. 8 is the circuit diagram of this preferred embodiment of the present invention, and the state of the test second energy storage string is described.
Fig. 9 is the circuit diagram of this preferred embodiment of the present invention, and the state of test first energy storage device is described.
Figure 10 is the circuit diagram of this preferred embodiment of the present invention, and the state of test second energy storage device is described.
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to power-supply system and its embodiment of detection method, structure, method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention present with reference to knowing in the detailed description of graphic preferred embodiment in following cooperation.By the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, the present invention is limited.
Seeing also shown in Figure 1ly, is the circuit diagram of power-supply system preferred embodiment of the present invention.The power-supply system of preferred embodiment of the present invention, comprise: four energy storage strings 1～4, a detecting unit 5, an and control unit 6, these four energy storage strings 1～4 are respectively the first energy storage string 1, the second energy storage string 2, the 3rd energy storage string 3 and the 4th energy storage string 4, and number that it should be noted that described energy storage string 1～4 does not only exceed with 4 for illustrating.
Therefore each energy storage string 1～4 comprises a plurality of energy storage devices 11～14 (number of described energy storage device 11～14 does not only exceed with 4 for illustrating), and the energy storage device 11～14 in four energy storage strings 1～4 forms an array in fact and arranges.And have an energy-storage units 111 (as shown in Figure 6) in each energy storage device 11～14, and in the present embodiment, this energy-storage units 111 is a kind of magnetic capacitance unit with at least one magnetic capacitance.Because magnetic capacitance is a kind of energy-storage travelling wave tube of novelty, and battery more in the past, electric capacity, super capacitor have many advantages, therefore followingly earlier the magnetic capacitance unit made a presentation explanation, and then describe in detail and how to detect.
The magnetic capacitance unit is introduced
This magnetic capacitance unit can be a single magnetic capacitance, or by a plurality of magnetic capacitances with series, parallel or mix the magnetic capacitance group that series-parallel system is formed.The magnetic capacitance that present embodiment is used be a kind of be raw material with the Si semiconductor, under certain the action of a magnetic field, realize the energy-storage travelling wave tube of high density, big capacity store electrical energy by physics energy storage mode.And magnetic capacitance has, and output current is big, volume is little, in light weight, overlength useful life, charging and discharging capabilities is good and characteristic such as the memory effect of not charging, therefore bring charge storage element as standby power system to replace lead-acid batteries in the past, except volume, weight and the manufacturing cost that can reduce standby power system, but also the system that can realize is non-maintaining and improve advantage such as system useful life.
Seeing also shown in Figure 2ly, is the magnetic capacitance of present embodiment and other comparison schematic diagram of store energy media in the past.Because store energy media (for example: conventional batteries or super capacitor) in the past mainly is to utilize the mode of chemical energy to carry out store energy, therefore its store energy density will significantly be better than general electric capacity, and can be applicable to various electric power supply apparatus, but at the same time, the moment electric power output that it can produce also can be subject to chemical reaction rate, and can't discharge and recharge or carry out high power output fast, and it is limited to discharge and recharge number of times, grows variety of issue when excessively charging and discharging easily.Compared to this, because energy stored all is that mode with electrical potential energy stores in the magnetic capacitance, therefore, except have can with the store energy density of general battery or super capacitor coupling, more because fully possess the characteristic of electric capacity, and have long (high charge-discharge number of times), memory-less effect of life-span, can carry out characteristics such as high power output, fast charging and discharging, so the variety of issue that can solve current battery effectively and run into.
Seeing also shown in Figure 3ly, is the structural representation of magnetic capacitance in the present embodiment.Magnetic capacitance 600 is to include one first magnetic pole 610, one second magnetic pole 620, and a therebetween dielectric layer 630.This first magnetic pole 610 and second magnetic pole 620, constituted by electric conducting material with magnetic, and magnetize by suitable extra electric field, make and form magnetic dipole (Magenetic Dipole) 615 and magnetic dipole 625 in first magnetic pole 610 and second magnetic pole 620 respectively, to constitute a magnetic field in magnetic capacitance 600 inside, the mobile of charged particle impacted, thus the leakage current of inhibition magnetic capacitance 600.
Required ben be that the magnetic dipole 615 among above-mentioned Fig. 3 and 625 the direction of arrow only are to be a schematic diagram.For haveing the knack of the technical staff of this skill, should recognize, magnetic dipole 615 is formed by stacking with the small magnetic dipole that magnetic dipole 625 is actually by a plurality of proper alignment, and in the present invention, magnetic dipole 615 and magnetic dipole 625 last direction and the indefinite that form for example can point to same direction or different directions.This dielectric layer 630 then is to be used for separating first magnetic pole 610 and second magnetic pole 620, with in first magnetic pole 610 and second magnetic pole, 620 place's stored charges, stores electrical potential energy.In one embodiment of this invention, first magnetic pole 610 and second magnetic pole 620 are to include the magnetic conductive material, rare earth element for example, 630 of dielectric layers are by titanium oxide (TiO3), barium monoxide titanium (BaTiO3) or semi-conductor layer, for example silica (Silicon Oxide) constitutes, yet the present invention is not limited to this, therefore first magnetic pole 610, second magnetic pole 620 and dielectric layer 630 all visual product demand and select suitable other materials for use.
The operating principle of the magnetic capacitance of the present invention of metaphor explanation now is as follows.The material phenomenon that resistance changes under certain magnetic field is called " magneto resistance effect ", and magnetic metal and alloy material generally all have this magneto-resistor phenomenon, and generally, the resistivity of material only produces slight reducing in magnetic field; Under certain condition, the amplitude that resistivity reduces is quite big, exceeds more than 10 times than the magnetoelectricity resistance of common magnetic metal and alloy material, and can produce very huge magneto resistance effect.If further combined with Mace Weir-Wagner (Maxwell-Wagner) circuit model, also may produce very huge magnetocapacitance effect in the magnetic-particle complex media.
In electric capacity in the past, capacitance C is by the area A of electric capacity, the DIELECTRIC CONSTANT of dielectric layer
0, ε
rAnd the thickness d decision, be shown below.
C＝ε
0ε
rA/d
Yet in the present invention, magnetic capacitance 600 mainly is to utilize the magnetic dipole of proper alignment in first magnetic pole 610 and second magnetic pole 620 to form magnetic field, the electronics of internal reservoir is rotated towards same spin direction, carry out neat arrangement, so can be under similarity condition, hold more electric charge, and then increase the storage density of energy.Be analogous to electric capacity in the past, the operation principles of magnetic capacitance 600 is equivalent to the dielectric constant that is used for changing dielectric layer 630 by magnetic field, so and can cause the significantly lifting of capacitance.
In addition, in the present embodiment, interface 632 between interface 631 between first magnetic pole 610 and the dielectric layer 630 and second magnetic pole 620 and the dielectric layer 630 all is to be a uneven surface, make the area of interface 631 and interface 632 compared to general smooth surface, A is bigger for its surface area, and can further promote the capacitance C of magnetic capacitance 600.
Seeing also shown in Figure 4ly, is the structural representation of first magnetic pole 610 among another embodiment of magnetic capacitance of the present invention.First magnetic pole 610 is to be a sandwich construction, includes one first magnetosphere 612, a separator 614 and one second magnetosphere 616.This separator 614, constituted by nonmagnetic substance, first magnetosphere 612 and second magnetosphere 616 then include the electric conducting material with magnetic, and when magnetization, by different extra electric fields, make the magnetic dipole 613 in win magnetosphere 612 and second magnetosphere 616 have different directions respectively, for example in a preferred embodiment of the present invention with magnetic dipole 617, magnetic dipole 613 and 617 direction are oppositely, and can further suppress the leakage current of magnetic capacitance 600.In addition, it is emphasized that, the structure of magnetic pole 610 is not limited to aforesaid three-decker, and can be in a similar fashion, constantly be staggeredly stacked with a plurality of magnetospheres and nonmagnetic layer, relend the leakage current that further suppresses magnetic capacitance 600 by the adjustment of magnetic dipole direction in each magnetosphere, even reach the almost effect of leakage current.
In addition, because energy-storage travelling wave tube in the past stores in the mode of chemical energy mostly, therefore all need to have the dimensions, otherwise tend to cause declining to a great extent of reserves efficient.Compared to this, magnetic capacitance 600 of the present invention is that the mode with electrical potential energy stores, and because employed material is applicable to semiconductor fabrication process (processing procedure), so can form magnetic capacitance 600 and peripheral circuit by suitable semiconductor fabrication process connects, and then volume and the weight that can dwindle magnetic capacitance 600, because this manufacture method is to use general manufacture of semiconductor to reach, so do not repeat them here.
Seeing also shown in Figure 5ly, is the structural representation of a magnetic capacitance group 500 in another embodiment of the present invention.Brought forward is described, in the present embodiment, be to utilize semiconductor fabrication process (processing procedure) on a silicon substrate, to make a plurality of undersized magnetic capacitances 600, and by the proper metal processing procedure, between these a plurality of magnetic capacitances 600, form and be electrically connected, thereby constitute a magnetic capacitance group 500 that includes a plurality of magnetic capacitances 600, again with the supply of electric power source of magnetic capacitance group 500 as energy accumulating device or external device (ED).In the present embodiment, a plurality of magnetic capacitances 600 in the magnetic capacitance group 500 are that the mode with similar array is electrically connected, yet the present invention is not limited to this, and can be according to different voltage or capacitance demand, carry out suitable serial or parallel connection, to satisfy the supply of electric power demand of various different devices.
The annexation of element:
See also shown in Figure 1ly, described energy storage string 1～4 is connected in parallel to each other, and receives the test signal that this detecting unit 5 is sent into.And in the present embodiment, each energy storage string 1～4 comprises a Test Switchboard 15 and 4 energy storage devices 11～14, and described energy storage device 11～14 and this Test Switchboard 15 are cascaded, and described energy storage device 11～14 is respectively first energy storage device 11, second energy storage device 12, the 3rd energy storage device 13 and the 4th energy storage device 14, and number that it should be noted that the energy storage device 11～14 that each energy storage string 1～4 is comprised does not exceed with 4.
Please shown in Figure 6 in conjunction with consulting, be the circuit diagram of this preferred embodiment of the present invention, the schematic diagram of energy storage device is described.Each energy storage device 11～14 has an energy-storage units 111, an isolating switch 112, and an operating switch 113.This energy-storage units 111 is connected with this operating switch 113, and this isolating switch 112 is and energy-storage units 111 and these operating switch 113 parallel connections of connecting.
And it should be noted that, the title of above-mentioned switch 15,112,113 does not limit the kind of these switches 15,112,113, or define these switches the 15,112, the 113rd, dissimilar switches, on the contrary, these switches 15,112,113 are the switch of same type, and when this energy-storage units 111 was made with manufacture of semiconductor, these switches 15,112,113 also can be made by manufacture of semiconductor.
This detecting unit 5 carries out following different test phase: (1). and whether is the unit with whole array earlier, sending test signal has fault to test whole array integral body; (2). if there is failure situations to take place, be that unit tests each energy storage string 1～4 with each energy storage string 1～4 more then, break down to judge in which energy storage string 1～4; (3). and then be unit to there being the energy-storage units 111 in energy storage string 1～4 test which energy storage device 11～14 that it was comprised that breaks down to break down with each energy storage device 11～14.
According to the test phase difference of this detecting unit 5, control unit 6 can be controlled the conducting or the not conducting of above-mentioned each switch 15,112,113 according to this respectively, and detection method is as described below in detail.
Detection method of the present invention:
When beginning to detect, this control unit 6 is earlier with all Test Switchboards 15 and all conductings of operating switch 113, and all isolating switch 112 neither conductings, and then whether failure situations is arranged by 5 tests of this detecting unit, and whether the test mode of detecting unit 5 can correctly be judged by measuring total electric weight, but actual test mode is not as limit.
If total electric weight is incorrect, then judging has at least one energy-storage units 111 fault, therefore begins each energy storage string 1～4 is detected one by one.
When this detecting unit 5 detects k (k=1～4) energy storage string, Test Switchboard 15 conductings of these control unit 6 control k energy storage strings, and the Test Switchboard 15 neither conductings of other energy storage strings, and control all the isolating switch 112 not conductings in the k energy storage string, and control all working switch 113 conductings in the k energy storage string.Please in conjunction with consulting Fig. 7, shown in Figure 8, Fig. 7 is the circuit diagram of this preferred embodiment of the present invention, and the state of the test first energy storage string is described; Fig. 8 is the circuit diagram of this preferred embodiment of the present invention, and the state of the test second energy storage string is described.As shown in Figure 7, promptly be to test over against the first energy storage string 1, and shown in Figure 8 be to test over against the second energy storage string 2, and among Fig. 7 and Fig. 8 for convenience of description, omit the control unit 6 that do not draw.
Then all energy-storage units 111 in this energy storage string being detected one by one when undesired when the test result of k energy storage string shows, is energy-storage units 111 faults in which energy storage device definitely to find out.When this detecting unit 5 detects the energy-storage units 111 of j (j=1～4) energy storage device of k energy storage strings, Test Switchboard 15 conductings of these control unit 6 control k energy storage strings, and the Test Switchboard 15 neither conductings of other energy storage strings, and control operating switch 113 conductings of the j energy storage device of k energy storage string, and other operating switch 113 neither conductings of k energy storage string, and control the isolating switch 112 not conductings in the j energy storage device of k energy storage string, and other isolating switch 112 conductings of k energy storage string.See also Fig. 9, shown in Figure 10, Fig. 9 is the circuit diagram of this preferred embodiment of the present invention, and the state of test first energy storage device is described; Figure 10 is the circuit diagram of this preferred embodiment of the present invention, and the state of test second energy storage device is described.As shown in Figure 9, the energy-storage units 111 that promptly is first energy storage device 11 in the first energy storage string 1 is tested, and shown in Figure 10 be that the energy-storage units 111 of second energy storage device 12 in the first energy storage string 1 is tested, and for convenience of description, omit do not draw detecting unit 5 and control unit 6 among Fig. 9 and Figure 10.
Purpose that it should be noted that this isolating switch 112 can be isolated from the non-energy-storage units 111 that is in the test outside the loop, and can reach the effect that avoids interference.
In sum, power-supply system of the present invention, even under the many situations of these energy-storage units 111 numbers of poles, still can reach out of order this energy-storage units 111 of quick test, and only need replace this energy-storage units 111 of fault, and must not replace whole power-supply system, can significantly reduce cost, and at test described energy storage device 11～14 o'clock, isolating switch 112 conductings and operating switch 113 not conductings in all the other non-energy storage devices 11～14 that are in the test, and can help the accuracy that measures, be very suitable for practicality.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (15)
1. power-supply system is characterized in that this power-supply system comprises:
The energy storage string of a plurality of parallel connections, each energy storage string comprise a Test Switchboard and a plurality of energy storage device of series connection;
Each energy storage device has the isolating switch of an energy-storage units in order to store electrical energy, operating switch of connecting with this energy-storage units and and this energy-storage units of connecting and this operating switch parallel connection;
A detecting unit is detected each energy storage string, judges out of order energy storage string, and detects the energy-storage units fault of which energy storage device in the fault energy storage string again; And
A control unit, according to the test phase difference of this detecting unit, this control unit can be controlled described Test Switchboard, described operating switch according to this respectively, and described isolating switch, and each switch is switched between conducting state and the nonconducting state.
2. power-supply system as claimed in claim 1, it is characterized in that described energy-storage units wherein each energy-storage units be a magnetic capacitance unit.
3. power-supply system as claimed in claim 2, it is characterized in that wherein said detecting unit is when this detecting unit is detected this energy storage string, the Test Switchboard conducting of the energy storage string in this control unit control detecting, and other not conductings of Test Switchboard, and all working switch conduction of the energy storage string in the control detecting, and all not conductings of isolating switch of the energy storage string in the control detecting.
4. power-supply system as claimed in claim 2, it is characterized in that wherein said detecting unit is when this detecting unit is detected this energy storage device, the Test Switchboard conducting of the pairing energy storage string of energy storage device in this control unit control detecting, and other not conductings of Test Switchboard, and the not conducting of isolating switch and the operating switch conducting of the energy storage device in the control detecting, and other isolating switch conductings and other not conductings of operating switch in the pairing energy storage string of energy storage device in the control detecting.
5. power-supply system as claimed in claim 2, it is characterized in that wherein said energy-storage units is at each energy storage string of test whether before the fault, this control unit is earlier with all Test Switchboards and all conductings of all working switch, and all not conductings of isolating switch, and whether there is fault to take place by the test of this detecting unit, if when having fault to take place, then detect respectively again and then to each energy storage string.
6. power-supply system as claimed in claim 2 is characterized in that wherein said magnetic capacitance unit is a single magnetic capacitance, or by a plurality of magnetic capacitances with series, parallel or mix the magnetic capacitance group that series-parallel system is formed.
7. power-supply system as claimed in claim 6, it is characterized in that wherein said magnetic capacitance includes one first magnetic pole, second magnetic pole and is arranged at therebetween a dielectric layer, has magnetic dipole to suppress the leakage current of this magnetic capacitance in this first magnetic pole and second magnetic pole.
8. power-supply system as claimed in claim 7, it is characterized in that wherein said first magnetic pole includes: one first magnetosphere has the magnetic dipole that is arranged in first direction; One second magnetosphere, the magnetic dipole with the second direction of being arranged in; And a separator, include nonmagnetic substance, be arranged between this first magnetosphere and this second magnetosphere; This first direction and this second direction are reverse each other, to suppress the leakage current of this magnetic capacitance.
9. power-supply system as claimed in claim 7 is characterized in that wherein said first magnetic pole and second magnetic pole are to include rare earth element, and this dielectric layer is made of titanium oxide, barium monoxide titanium or semi-conductor layer.
10. power-supply system as claimed in claim 9 is characterized in that wherein said semiconductor layer is a silica.
11. a detection method is applicable to and detects whether fault of a power-supply system that this power-supply system comprises the energy storage string of a plurality of parallel connections, and each energy storage string has the energy storage device of a plurality of series connection, it is characterized in that this detection method comprises following steps:
(A). detect whether fault of each energy storage string; And
(B). to out of order energy storage string, detect in this energy storage string whether fault of each energy storage device one by one.
12. detection method as claimed in claim 11, it is characterized in that each energy storage string of described energy storage string also comprises a Test Switchboard of connecting with described energy storage device, and each energy storage device comprises an energy-storage units, one operating switch of connecting with this energy-storage units and one with the isolating switch of this energy-storage units of connecting and this operating switch parallel connection, in the described step (A), comprise that also first conducting is in the Test Switchboard of the energy storage string in the detection, and the non-Test Switchboard that is in the energy storage string in the detection of not conducting, and in step (A), comprise that also first conducting is in all working switch of the energy storage string in the detection, and not conducting is in all isolating switches of the energy storage string in the detection.
13. detection method as claimed in claim 11, it is characterized in that each energy storage string of described energy storage string also comprises a Test Switchboard of connecting with described energy storage device, and each energy storage device comprises an energy-storage units, one operating switch of connecting with this energy-storage units and one with the isolating switch of this energy-storage units of connecting and this operating switch parallel connection, in the described step (B), comprise that also first conducting is in the operating switch of the energy storage device in the detection, and not conducting is in the isolating switch of the energy storage device in the detection, and the non-isolating switch that is in the energy storage device in the detection of conducting, and the non-operating switch that is in the energy storage device in the detection of not conducting, and in step (B), comprise that also first conducting is in the Test Switchboard of the pairing energy storage string of energy storage device in the detection, and make other not conducting of Test Switchboard.
14. detection method as claimed in claim 11, whether it is characterized in that it also comprises one in described step (A) step before: detecting this power-supply system integral body has fault.
15. detection method as claimed in claim 14, it is characterized in that each energy storage string of described energy storage string also comprises a Test Switchboard of connecting with described energy storage device, and each energy storage device comprise an energy-storage units, an operating switch of connecting with this energy-storage units and one with the isolating switch of this energy-storage units of connecting and this operating switch parallel connection, when whether this power-supply system integral body of detection has fault, earlier with all Test Switchboards and all conductings of all working switch, and make all not conductings of isolating switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810173566 CN101741105A (en) | 2008-11-06 | 2008-11-06 | Power system and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810173566 CN101741105A (en) | 2008-11-06 | 2008-11-06 | Power system and detection method thereof |
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| CN 200810173566 Pending CN101741105A (en) | 2008-11-06 | 2008-11-06 | Power system and detection method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104749472A (en) * | 2015-04-20 | 2015-07-01 | 阳光电源股份有限公司 | Multi-switch tube parallel failure detecting method and circuit and DC conversion circuit |
| CN107912060A (en) * | 2015-06-24 | 2018-04-13 | 菲尼克斯电气公司 | For identifying the measuring apparatus of accumulator equipment fault |
| CN111900791A (en) * | 2020-08-11 | 2020-11-06 | 上海道麒实业发展有限公司 | On-vehicle outage holding circuit |
| CN116338264A (en) * | 2023-05-06 | 2023-06-27 | 苏州光宝科技股份有限公司 | Explosion-proof case of battery test |
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2008
- 2008-11-06 CN CN 200810173566 patent/CN101741105A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749472A (en) * | 2015-04-20 | 2015-07-01 | 阳光电源股份有限公司 | Multi-switch tube parallel failure detecting method and circuit and DC conversion circuit |
| CN104749472B (en) * | 2015-04-20 | 2017-07-28 | 阳光电源股份有限公司 | Multi- Switch pipe parallel failure detection method, detection circuit and DC transfer circuit |
| CN107912060A (en) * | 2015-06-24 | 2018-04-13 | 菲尼克斯电气公司 | For identifying the measuring apparatus of accumulator equipment fault |
| CN111900791A (en) * | 2020-08-11 | 2020-11-06 | 上海道麒实业发展有限公司 | On-vehicle outage holding circuit |
| CN116338264A (en) * | 2023-05-06 | 2023-06-27 | 苏州光宝科技股份有限公司 | Explosion-proof case of battery test |
| CN116338264B (en) * | 2023-05-06 | 2024-01-19 | 苏州光宝科技股份有限公司 | Explosion-proof case of battery test |
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Open date: 20100616 |