CN104881524A - Software for calculating magnetic parameter of double-source magnetic circuit - Google Patents
Software for calculating magnetic parameter of double-source magnetic circuit Download PDFInfo
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- CN104881524A CN104881524A CN201510240339.3A CN201510240339A CN104881524A CN 104881524 A CN104881524 A CN 104881524A CN 201510240339 A CN201510240339 A CN 201510240339A CN 104881524 A CN104881524 A CN 104881524A
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Abstract
The invention relates to the technical fields of magnetic materials and application thereof, and DC magnetic circuits and calculation, scientific calculation and computer software of the DC magnetic circuits. The technical problem to be solved is the technical problem of magnetic parameter recognition of a double-source magnetic circuit. The technical scheme adopted for solving the technical problem is as follows: a computer is taken as a processing tool, the external temperament magnetic field, the inner-cavity temperament magnetic field and the ferromagnetic loop magnetic field of the double-source magnetic circuit are taken as calculation objects, a series of technical operations are performed to generate a leakage magnetic flux calculation program, a main magnetic flux calculation program, a magnetic potential calculation program and other relevant programs needed by calculation, and the programs are combined to generate the software for calculating the magnetic parameter of the double-source magnetic circuit. The major use of the software is as follows: the calculation software is run on a computer to obtain the magnetic parameter value and other relevant physical quantities of the double-source magnetic circuit; the calculation software is capable of performing dynamic simulation calculation on the double-source magnetic circuit on the computer to obtain the variation rule and the characteristics of the magnetic parameter; the design innovation and development of a magnetic operation mechanism are supported.
Description
Technical field
The present invention relates to magnetic material and application thereof, DC circuit magnetic loop and calculating thereof, scientific algorithm and computer software.
Background technology
DC circuit magnetic loop calculates and should follow: the algebraic sum of the magnetic flux that the principle of continuity of magnetic flux refers to through arbitrary sealing surface equals zero.Its mathematic(al) representation is ∮
sbds=0, it is the intrinsic characteristic in magnetic field.Peace times loop analyses refers to the algebraic sum of arbitrary closed road through upper each section of magnetic potential (poor), equals to act on this closed road through upper magnetic (moving) gesture, and it is intrinsic another characteristic in magnetic field.
Magnetic circuit refers to the region that magnetic flux can be constrained in wherein.Ferromagnetic circuit refers to primarily of nonlinear ferroelectric medium and a small amount of line air medium (referring to technique or working gas gap) formation, the closed path that the main flux for magnetic source generation circulates wherein.Section magnetic circuit refers to and can meet magnetic flux, changes of section, medium three all continuous print principle and iron leg magnetic loops of being divided into.It is the elementary cell that magnetic circuit magnetic potential calculates.
Magnetic field refers to surrounding spaces such as being present in current－carrying conductor, permanent magnet, moving charge or time-varying electric field, the material of a kind of special shape characterized with magnetic induction density.It is one of characteristic of magnetic field materiality that magnetic field has energy.
Magnetic source refers to the magnet having and keep magnetic field ability, as permanent magnet and DC electromagnets.Sources of magnetic flux refers to and is become by permanent magnet equivalency transform, has the magnetic source that a permanent sources of magnetic flux and a constant interior magnetic conductance compose in parallel.Magnetic potential source refers to and direct current is passed into field copper and the magnetic source existed.Often represent its magnetic potential amount, also known as ampere-turn magnetic source with ampere-turn.
Not only double source magnetic circuit refers to existing sources of magnetic flux (permanent magnet) but also has the ferromagnetic circuit of magnetic potential source (i.e. DC excitation winding).The magnetic circuit of " permanent magnet mechanism " also has aforementioned two kinds of magnetic sources, but because magnetic circuit adopts tower structure, cause magnetic source around the outside set up, space with inner chamber (i.e. field copper space) two makings magnetic fields are interweaved, you I difficulty is divided, interface difficulty is fixed, cannot generate its magnetic Parameters Calculation software.Double source magnetic circuit have employed concentric cylindrical structure, not only eliminate " permanent magnet mechanism " drawback on magnetic circuit, promote the progress of existing magnetic circuit technology, and also show the technical characteristic that to be mutually related between double source magnetic circuit and magnetic Parameters Calculation software and be: magnetic Parameters Calculation software generates according to double source magnetic circuit, for double source magnetic circuit calculates magnetic parameter and used after generation.Double source magnetic circuit is also the power plant module of magnetic force operating mechanism.
Scientific algorithm is some subject matters for solving the subjects such as physics, chemistry, mechanics, space, and the mathematical model that research is relevant and computing method, can carry out the numerical evaluation of computing on computers.Mathematical model is generally Algebraic Equation set, the differential equation and integral equation.For the differential equation or integral equation, need first by its discretize, they are converted into Algebraic Equation set, study the computing method that solve, and program and calculate on computers.If result of calculation is undesirable, also need to analyze and revise mathematical model and computing method repetition said process.
Computational science software is the computer software developed for solving Science and engineering problem.It can be divided into two classes according to usable range: one is the general mathematical software of the mathematical problem solved in Science and engineering; Two is the application software towards specific engineering calculation, such as Computer-Aided Aircraft design software, dispatching of power netwoks software etc.
Mathematical model refers to the mathematical description of mutual relationship between control system variable and Changing Pattern.It is the mathematical problem of certain form the analytic induction of phenomenon in system.Relation between variable can represent with formula (such as algebraic equation, the differential equation, integral equation, transport function etc.), and also can represent with form or figure, they are all the forms of expression of mathematical model.When founding mathematical models, the simplification of model and the accuracy of result be taken into account.
Computer software refers to program in computer system and document thereof, and program is the main body of software; Program refers to the handling object of calculation task and the description of processing rule; Application program refers to the specific program solving specific area engineering problem; Subroutine refers to have standalone feature, can in the program run invoked program repeatedly; Module refers to the special type subroutine with simple function.
Air is the magnetic medium without magnetization phenomenon, and its magnetic permeability is magnetic constant, i.e. μ
0=4 π × 10
-7(H/m), linear medium is belonged to.One section of three-dimensional air medium (hereinafter referred to as makings) magnetic circuit, if its makings changes of section is continuous print, then the computing formula of its magnetic conductance Y is Y=μ
0a
i/ l
i, A in formula
ifor average makings sectional area, unit is square metre; l
ifor average makings magnetic circuit is long, unit is rice.The makings changes of section of visible one section of makings magnetic circuit is continuous print, then its magnetic conductance value is determined by its physical dimension.
The computational problem in makings magnetic field, final goal asks the numerical value of leakage flux.Engineering can appliance computer be scientific algorithm by the expression model of numerical evaluation problem.Therefore, according to the magnetic characteristic of makings magnetic circuit, utilizing the thoughts and methods of scientific algorithm, is solve the most effective approach of makings magnetic field computational problem.
Magnetic flux tube is connected and composed successively by the face of dispersing, one section of three dimensions makings magnetic circuit that can retrain leakage flux and convergence face.Magnetic flux tube is the carrier describing makings magnetic field formation and constraint leakage flux.Magnetic flux tube according to makings magnetic field Formation rule, should be pressed emulation and uniqueness principle and create-rule and sets up, make magnetic flux tube have the technical attributes of equivalence.In outside makings magnetic field, medium face refers to by medium and continuity principle thereof, waits the face of cylinder that outer diameter cylindrical external surface divides at side yoke with one heart.In inner chamber makings magnetic field, medium face refers to the inner or outer surface of the concentric cylinder of the different ironwares surrounding intracavity space and annular solid inside surface.The medium face being in sources of magnetic flux N polarity side claims the face of dispersing.The medium face being in sources of magnetic flux S polarity side claims convergence face.Can by the face of dispersing or the point converging face area decile on two dimensional surface, or on three dimensions the locus circle of Along ent, be UNICOM's point or the line that main flux shunting leakage flux or leakage flux inject main flux.
The magnetic flux tube with same technical attributes is regarded as an entirety, this entirety is magnetic flux tube set.At this moment, this set is just provided with the equivalence techniques attribute of magnetic flux tube, in addition, also makes the makings magnetic circuit of magnetic flux tube derive the road network becoming equivalent makings magnetic field.Utilize the above-mentioned specific technical characteristic of magnetic flux tube set, while equivalent substitution makings magnetic field, just makings magnetic field is converted to the road network of being stated by magnetic flux tube.
Magnetic balance calculating refers to and utilizes double source magnetic circuit magnetic Parameters Calculation software to carry out loop computation on computers, becomes to making calculated value to approach gradually to desired value.When calculated value is equal with desired value (when balancing), circulation is exited in computing, and shows the computing method of the magnetic value of consult volume after balance.
The file quoted is: Precise Alloy magnetism characteristic and magnetics amount term GB/T 15013-94; Metallic Functional Materials dictionary metallurgical industry publishing house in June, 1999 first published; China Power encyclopedia " Fundamentals of Electrotechnics volume " the China Electric Power Publishing House second edition in January calendar year 2001.
Summary of the invention
At present, in DC circuit magnetic loop engineering, can be used for the instrument of magnetic measurement, only have teslameter (or fluxmeter), and it can not be used for the measurement of the magnetic flux in irony magnetic circuit.For this reason, the technical matters of double source magnetic circuit magnetic parameter in the urgent need to address cognition.
The technical scheme that technical solution problem adopts:
One is utilize the outside makings magnetic field of magnetic flux tube set equivalent substitution, and is converted to the road network of being stated by magnetic flux tube; Set up the mathematical model of magnetic flux tube respectively, and obtain its equivalent magnetic conductance, equivalent magnetic conductance is combined into the magnetic conductance network that can calculate leakage flux; Foundation can describe the magnetic conductance network Model of leakage flux, magnetic potential, magnetic conductance mutual relationship and Changing Pattern, by resolving, is deduced into the code information of programming; Utilize computer programming language, code information writing is generated leakage flux calculation procedure.
Two is utilize magnetic flux tube set equivalent substitution inner chamber makings magnetic field, and is converted to the road network of being stated by magnetic flux tube; Set up the mathematical model of magnetic flux tube respectively, and obtain its equivalent magnetic conductance, equivalent magnetic conductance is combined into net, through equivalent transformations, form the magnetic conductance network that can calculate main flux; Foundation can describe the magnetic conductance network Model of main flux, magnetic potential, magnetic conductance mutual relationship and Changing Pattern, by resolving, is deduced into the code information of programming; Utilize computer programming language, code information writing is generated main flux calculation procedure.
Three is by section magnetic circuit division principle, by the ferromagnetic circuit section of being divided into, and sets up calculating every section of magnetic circuit average cross-section A
ithe l long with average magnetic circuit
isubroutine; By the B of magnetic circuit ferrous material
i-H
icurve or numerical tabular, converting it into can by section magnetic flux φ
idivided by this section of average cross-section A
ithe magnetic induction density B obtained
igo to retrieve corresponding magnetic field intensity H
ithe subroutine of value; In an orderly manner by each section of magnetic circuit code φ
i, A
i, l
i, B
i, H
i, writing generates magnetic potential calculation procedure.
Four is set up other relative programs based on needed for the module being applicable to magnetic balance calculating of leakage flux, main flux and magnetic potential calculation procedure and calculating, and the variable instruction using working gas gap length as controlling calculation, be combined into double source magnetic circuit magnetic Parameters Calculation software (hereinafter referred to as software for calculation) being suitable for single source or double source effect and the different magnetic parameter demand of calculating.
Beneficial effect is: moving calculation software on computers, the magnetic parameter of reflection double source magnetic circuit duty can be obtained, as main flux, leakage flux, section magnetic potential, UNICOM's point magnetic potential, total magnetic potential, the outer of sources of magnetic flux supply magnetic potential, ampere-turn magnetic potential and calculate other relevant physical quantitys to magnetic circuit, as magnetic energy, static magnetic, electric magnetic, dynamic magnetic resistance and dynamic magnetic energy difference etc.; Utilize software for calculation can carry out dynamic analog calcutation to double source magnetic circuit on computers, obtain static magnetic family curve and electric magnetic family curve; Can directly for the development of magnetic force operating mechanism bring laborsaving, save time, economize material, cost-saving and lift technique innovation ability and product quality; The all standing that the vacuum circuit breaker that will promote adapted magnetic force operating mechanism uses in mesolow distribution, can be the switching equipment that outdoor aerial net, cable system, case change, post change and distribution intellectuality provide high-quality, improve security level and the power supply reliability of distribution operation; Can the new product replacing alternating electromagnet be researched and developed, impel A.C. contactor and low-voltage circuit breaker to become the new product of energy saving standard (referring to eliminate the noise of alternating electromagnet generation), replace after putting in place, national 10,000,000,000 kilowatt hours of can economizing on electricity for a year.
Accompanying drawing explanation
Fig. 1 is the part sectioned view of double source magnetic circuit structure.What this figure showed is the structural member relevant to generating magnetic Parameters Calculation software, is divided into by the motion feature of parts:
Static element comprises: 1. go up horizontal yoke, 2. field copper, 3. upper side yoke, 4. permanent magnet, 5. lower side yoke.
Movement parts comprises: 6. mechanical axis, 7. iron core, 8. bottom rail yoke.
Embodiment
Software for calculation input has been equipped with in the computing machine of identical programming language, qualified through debugging, can use.
Claims (2)
1. double source magnetic circuit, in magnetic circuit, there is sources of magnetic flux (permanent magnet), magnetic potential source (DC excitation winding), magnetic source around space sets up outside makings magnetic field, inner chamber makings magnetic field, ferromagnetic circuit magnetic field, it is characterized in that: overall is concentric cylindrical structure, and permanent magnet is placed in side yoke lean-with, construct the outside makings magnetic field separate with inner chamber two, define two working gas gaps between sound two pieces surface of contact.
2. double source magnetic circuit magnetic Parameters Calculation software, take computing machine as handling implement, with the outside makings magnetic field of double source magnetic circuit, inner chamber makings magnetic field and ferromagnetic circuit magnetic field for calculating object, the a series of technical operation carried out, is characterized in that: generate leakage flux calculation procedure, main flux calculation procedure and magnetic potential calculation procedure.
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| CN201510240339.3A CN104881524A (en) | 2015-05-13 | 2015-05-13 | Software for calculating magnetic parameter of double-source magnetic circuit |
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| CN201510240339.3A CN104881524A (en) | 2015-05-13 | 2015-05-13 | Software for calculating magnetic parameter of double-source magnetic circuit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140900A (en) * | 1999-08-03 | 2000-10-31 | The University Of Queensland | Assymetric superconducting magnets for magnetic resonance imaging |
| CN2624377Y (en) * | 2003-06-10 | 2004-07-07 | 扬州新概念电气有限公司 | Vacuum automatic circuit recloser |
| CN1870385A (en) * | 2006-06-26 | 2006-11-29 | 沈阳工业大学 | Mixing excitation permanent magnetic synchro generator |
| CN103580409A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | Brushless coil exciting direct-current motor for high-voltage circuit breaker operating mechanism |
| CN203465071U (en) * | 2013-09-27 | 2014-03-05 | 浙江大学 | Double-magnetic source magnetic circuit structure of permanent-magnet angular vibration bench |
-
2015
- 2015-05-13 CN CN201510240339.3A patent/CN104881524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6140900A (en) * | 1999-08-03 | 2000-10-31 | The University Of Queensland | Assymetric superconducting magnets for magnetic resonance imaging |
| CN2624377Y (en) * | 2003-06-10 | 2004-07-07 | 扬州新概念电气有限公司 | Vacuum automatic circuit recloser |
| CN1870385A (en) * | 2006-06-26 | 2006-11-29 | 沈阳工业大学 | Mixing excitation permanent magnetic synchro generator |
| CN203465071U (en) * | 2013-09-27 | 2014-03-05 | 浙江大学 | Double-magnetic source magnetic circuit structure of permanent-magnet angular vibration bench |
| CN103580409A (en) * | 2013-11-18 | 2014-02-12 | 沈阳工业大学 | Brushless coil exciting direct-current motor for high-voltage circuit breaker operating mechanism |
Non-Patent Citations (6)
| Title |
|---|
| MICROCHIP: "Brushed DC Motor Basics", 《URL：HTTP://WWW.MICROCHIP.COM/STELLENT/GROUPS/SITECOMM_SG/DOCUMENTS/DEVICEDOC/EN543041.PDF》 * |
| 娄建勇等: "单线圈单稳态永磁式接触器机构动力学特性仿真分析", 《中国电机工程学报》 * |
| 张卓然: "新型混合励磁同步电机特性研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
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Application publication date: 20150902 |