CN110162917A - What gap hysteresis was lost under the conditions of a kind of direct current biasing estimates calculation method - Google Patents
What gap hysteresis was lost under the conditions of a kind of direct current biasing estimates calculation method Download PDFInfo
- Publication number
- CN110162917A CN110162917A CN201910468778.8A CN201910468778A CN110162917A CN 110162917 A CN110162917 A CN 110162917A CN 201910468778 A CN201910468778 A CN 201910468778A CN 110162917 A CN110162917 A CN 110162917A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- conditions
- under
- hystersis loss
- flux density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/10—Numerical modelling
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
What the present invention provided that gap hysteresis under the conditions of a kind of direct current biasing is lost estimates calculation method, several sections is separated by the magnetic flux density by magnetic core in unsaturation workspace, to calculate the corresponding magnetic hystersis loss data in each section.The magnetic hystersis loss of magnetic core can be indicated by change in magnetic flux density amount calculated in related magnetic hystersis loss interval combinations under different DC biased, to estimate the changing rule of identical magnetic flux density variable quantity magnetic hystersis loss under the conditions of different DC biased.The core loss in the case of direct current biasing is estimated using the magnetic hystersis loss data under the conditions of no biasing.
Description
Technical field
It is lost the present invention relates to gap hysteresis under the conditions of converters field more particularly to a kind of direct current biasing
Estimate calculation method.
Background technique
Magnetic element in converters is generally operational in the case of direct current biasing, and direct current biasing can significant shadow
The magnetic hystersis loss of magnetic core is rung, higher magnetic hystersis loss can cause the excessive heat of magnetic element, will affect the steady of circuit when serious
Fixed work.The reversible permeability of magnetic core is reduced with the increase of magnetic field strength, when magnetic element works in direct current biasing condition
Under, it generates identical change in magnetic flux density amount and needs higher change of magnetic field strength amount, so as to cause the significant increasing of magnetic hystersis loss
Add.Since producer only provides core loss of magnetic core under the conditions of no direct current biasing, and direct current can be estimated without valid model at present
Core loss under bias condition, therefore how a weight is calculated as to estimating for gap hysteresis loss under the conditions of direct current biasing
The project wanted.
Summary of the invention
To solve the above problems, it is an object of the invention to provide the pre-estimations that gap hysteresis under the conditions of a kind of direct current biasing is lost
Calculation method is separated into several sections by the magnetic flux density by magnetic core in unsaturation workspace, corresponding to calculate each section
Magnetic hystersis loss data.The magnetic hystersis loss of magnetic core can be by change in magnetic flux density amount calculated involved under different DC biased
Magnetic hystersis loss interval combinations indicate, to estimate identical magnetic flux density variable quantity magnetic hystersis loss under the conditions of different DC biased
Changing rule.
What the present invention provided that gap hysteresis under the conditions of a kind of direct current biasing is lost estimates calculation method, the method includes with
Lower step:
Step 1: first using magnetic flux density step-length B=XmT as increment, magnetic core unsaturation under the conditions of no direct current biasing is measured respectively
The sinusoidal excitation magnetic hystersis loss data in area；
Step 2: according to the measurement result of step 1, it is big to calculate separately out incremental hysteresis loss corresponding to each step-length section
It is small；
Step 3: according to the analysis of step 2 as a result, the size that gap hysteresis is lost under the conditions of different DC biased is close by magnetic flux
Spend variable quantity B indicates in related magnetic hystersis loss interval combinations, the calculation formula are as follows:
；
WhereinFor the magnetic hystersis loss power density in the corresponding section BDC,For region magnetic flux density?
Corresponding sectionOn ratio, i.e.,。
Further improvement lies in that: described estimate measures magnetic core in identical frequency, different magnetic flux density conditions in calculation method
Under sinusoidal excitation magnetic hystersis loss data, several sections are separated by the magnetic flux density by magnetic core in unsaturation workspace, with
The corresponding magnetic hystersis loss data in each section are calculated, the magnetic hystersis loss of magnetic core is close by magnetic flux calculated under different DC biased
Degree variable quantity is indicated in related magnetic hystersis loss interval combinations, so that it is inclined in different direct currents to estimate identical magnetic flux density variable quantity
The changing rule of magnetic hystersis loss under the conditions of setting.
Further improvement lies in that: it is described to estimate obtained magnetic core magnetic hysteresis under the conditions of different DC biased in calculation method
The changing rule of loss is equally applicable to other nonsinusoidal excitation waveforms.
Further improvement lies in that: the section that the magnetic flux density to magnetic core in unsaturation workspace separates is thinner, estimation results
It is more accurate.
Magnetic hystersis loss power density of the magnetic core in each section thinks approximate constant.
The test of different frequency only influences magnetic hystersis loss size, magnetic core magnetic hysteresis caused under the conditions of different DC biased
Dissipation change rule is not by frequency influence.
The beneficial effects of the present invention are: several sections are separated by the magnetic flux density by magnetic core in unsaturation workspace,
To calculate the corresponding magnetic hystersis loss data in each section.The magnetic hystersis loss of magnetic core can be by magnetic calculated under different DC biased
Flux density variable quantity is indicated in related magnetic hystersis loss interval combinations, to estimate identical magnetic flux density variable quantity different straight
Flow the changing rule of magnetic hystersis loss under bias condition.Direct current biasing situation is estimated using the magnetic hystersis loss data under the conditions of no biasing
Under core loss.
Detailed description of the invention
Fig. 1 is each magnetic flux density step-length of non-saturated region of the invention section magnetic hystersis loss power density distribution figure.
Fig. 2 is magnetic hystersis loss power density computation embodiment schematic diagram under the conditions of direct current biasing of the invention.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
The present embodiment provides what gap hysteresis under the conditions of a kind of direct current biasing was lost to estimate calculation method, with 3F3(TN 36/
23/15) magnetic core work illustrates in frequency 25kHz embodiment, the described method comprises the following steps:
Step 1: first measurement without change in magnetic flux density amount △ B under the conditions of direct current biasing sinusoidal excitation be respectively 200mT,
400mT, 600mT, obtaining corresponding magnetic hystersis loss data is respectively 11.5kW/m3,81.5kW/m3,225kW/m3.
Step 2: it according to the measurement result of step 1, using magnetic flux density step-length B=100mT as increment, calculates separately out each
Magnetic hystersis loss power density size corresponding to a step-length section, as shown in Figure 2.
The magnetic hystersis loss power density computation of region.1:；
The magnetic hystersis loss power density computation of region.2:；
The magnetic hystersis loss power density computation of region.3:。
Step 3: when △ B is 300mT and is worked in 150mT direct current biasing, magnetic hystersis loss density is by formula meter
It calculates.It calculates first。
。
For further accurate estimation results, can the magnetic flux density to magnetic core in unsaturation workspace separate thinner area
Between.
It is described to estimate the sinusoidal excitation magnetic hysteresis that magnetic core is measured in calculation method under the conditions of identical frequency, different magnetic flux densities
Lossy data is separated into several sections by the magnetic flux density by magnetic core in unsaturation workspace, to calculate each section phase
The magnetic hystersis loss data answered, the magnetic hystersis loss of magnetic core is by change in magnetic flux density amount calculated involved under different DC biased
Magnetic hystersis loss interval combinations indicate, to estimate identical magnetic flux density variable quantity magnetic hystersis loss under the conditions of different DC biased
Changing rule.The variation rule for estimating obtained magnetic core magnetic hystersis loss under the conditions of different DC biased in calculation method
Rule is equally applicable to other nonsinusoidal excitation waveforms.The section that magnetic flux density to magnetic core in unsaturation workspace separates is thinner,
Estimation results are more accurate.Magnetic hystersis loss power density of the magnetic core in each section thinks approximate constant.The test of different frequency is only
Magnetic hystersis loss size is influenced, magnetic core magnetic hystersis loss changing rule caused under the conditions of different DC biased is not by frequency shadow
It rings.Several sections are separated by the magnetic flux density by magnetic core in unsaturation workspace, to calculate the corresponding magnetic in each section
Stagnant lossy data.The magnetic hystersis loss of magnetic core can be by change in magnetic flux density amount calculated in related magnetic under different DC biased
Stagnant loss interval combinations indicate, to estimate the change of identical magnetic flux density variable quantity magnetic hystersis loss under the conditions of different DC biased
Law.The core loss in the case of direct current biasing is estimated using the magnetic hystersis loss data under the conditions of no biasing.
Claims (4)
1. under the conditions of a kind of direct current biasing gap hysteresis be lost estimate calculation method, it is characterised in that: the method includes with
Lower step:
Step 1: first using magnetic flux density step-length B=XmT as increment, magnetic core unsaturation under the conditions of no direct current biasing is measured respectively
The sinusoidal excitation magnetic hystersis loss data in area；
Step 2: according to the measurement result of step 1, it is big to calculate separately out incremental hysteresis loss corresponding to each step-length section
It is small；
Step 3: according to the analysis of step 2 as a result, the size that gap hysteresis is lost under the conditions of different DC biased is close by magnetic flux
Spend variable quantity B indicates in related magnetic hystersis loss interval combinations, the calculation formula are as follows:
；
WhereinFor the magnetic hystersis loss power density in the corresponding section BDC,For region magnetic flux densityRight
Answer sectionOn ratio, i.e.,。
2. what gap hysteresis was lost under the conditions of a kind of direct current biasing as described in claim 1 estimates calculation method, feature exists
In: it is described to estimate the sinusoidal excitation magnetic hystersis loss that magnetic core is measured in calculation method under the conditions of identical frequency, different magnetic flux densities
Data are separated into several sections by the magnetic flux density by magnetic core in unsaturation workspace, corresponding to calculate each section
Magnetic hystersis loss data, the magnetic hystersis loss of magnetic core is by change in magnetic flux density amount calculated in related magnetic under different DC biased
Stagnant loss interval combinations indicate, to estimate the change of identical magnetic flux density variable quantity magnetic hystersis loss under the conditions of different DC biased
Law.
3. what gap hysteresis was lost under the conditions of a kind of direct current biasing as described in claim 1 estimates calculation method, feature exists
In: the changing rule for estimating obtained magnetic core magnetic hystersis loss under the conditions of different DC biased in calculation method is equally suitable
For other nonsinusoidal excitation waveforms.
4. what gap hysteresis was lost under the conditions of a kind of direct current biasing as described in claim 1 estimates calculation method, feature exists
In: the section that the magnetic flux density to magnetic core in unsaturation workspace separates is thinner, and estimation results are more accurate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468778.8A CN110162917B (en) | 2019-05-31 | 2019-05-31 | Magnetic core hysteresis loss pre-estimation calculation method under direct-current bias condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910468778.8A CN110162917B (en) | 2019-05-31 | 2019-05-31 | Magnetic core hysteresis loss pre-estimation calculation method under direct-current bias condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110162917A true CN110162917A (en) | 2019-08-23 |
| CN110162917B CN110162917B (en) | 2022-08-12 |
Family
ID=67630821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910468778.8A Active CN110162917B (en) | 2019-05-31 | 2019-05-31 | Magnetic core hysteresis loss pre-estimation calculation method under direct-current bias condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110162917B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044956A (en) * | 2019-11-28 | 2020-04-21 | 浙江大学 | Hysteresis loss estimation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197267A (en) * | 2013-02-28 | 2013-07-10 | 南京邮电大学 | Magnetic core loss separation calculating method |
| CN107656221A (en) * | 2017-09-08 | 2018-02-02 | 国网江苏省电力公司电力科学研究院 | A kind of transformer core remanent magnetism evaluation method based on minor loop's slope |
-
2019
- 2019-05-31 CN CN201910468778.8A patent/CN110162917B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197267A (en) * | 2013-02-28 | 2013-07-10 | 南京邮电大学 | Magnetic core loss separation calculating method |
| CN107656221A (en) * | 2017-09-08 | 2018-02-02 | 国网江苏省电力公司电力科学研究院 | A kind of transformer core remanent magnetism evaluation method based on minor loop's slope |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044956A (en) * | 2019-11-28 | 2020-04-21 | 浙江大学 | Hysteresis loss estimation method |
| CN111044956B (en) * | 2019-11-28 | 2021-05-11 | 浙江大学 | Hysteresis loss estimation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110162917B (en) | 2022-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Demagnetizing factors for rectangular prisms | |
| CN107656221A (en) | A kind of transformer core remanent magnetism evaluation method based on minor loop's slope | |
| CN106250626B (en) | A kind of extra-high voltage transformer zero load D.C. magnetic biasing quick calculation method based on L-I curve | |
| CN108460220B (en) | Improved Jiles-Atherton model-based dynamic hysteresis loop prediction method | |
| CN111914413B (en) | Magnetic core high-frequency loss calculation method under symmetrical/asymmetrical rectangular voltage excitation | |
| Prus et al. | Research of rnergy processes in circuits containing iron in saturation condition | |
| JPWO2010038799A1 (en) | Method for analyzing DC superposition characteristics of inductance element and electromagnetic field simulator | |
| CN112364490A (en) | Model parameter identification method for hysteresis characteristics of ferromagnetic material | |
| CN111044956B (en) | Hysteresis loss estimation method | |
| CN110162917A (en) | What gap hysteresis was lost under the conditions of a kind of direct current biasing estimates calculation method | |
| CN115267295A (en) | Method and system for determining fluxgate current sensor | |
| KR100860570B1 (en) | Error compensating method for a measurement type current transformer considering hysteresis characteric of the core | |
| Materu et al. | Analytical prediction of SRM inductance profile and steady-state average torque | |
| JP5293755B2 (en) | Apparatus for measuring complex permeability of magnetic material and method for measuring crystal grain size of magnetic material using the same | |
| CN113835051B (en) | Method for determining stray loss of magnetic conductive member under alternating current-direct current composite excitation | |
| KR101845412B1 (en) | Flux Observer of Induction Motor and Estimating Method Thereof | |
| CN108363029A (en) | The calibration system and calibration method of DC current sensor | |
| Dlala et al. | Hysteresis modeling based on symmetric minor loops | |
| CN111999378A (en) | TMR sensor-based method for measuring conductivity and thickness of metal material | |
| CN110991099A (en) | Direct-current magnetic bias calculation method for series resistance compensation of parallel windings of extra-high voltage transformer | |
| CN107203495B (en) | S parameter circular interpolation method | |
| KR101229781B1 (en) | Parameter estimation method of inductionmotors for vector control | |
| CN105044455B (en) | The frequency of AC signal and the measuring method of phase | |
| KR101590251B1 (en) | Estimation method of rotor time constant with motor at standstill | |
| CN110427691B (en) | Three-dimensional transient simulation method for pipeline magnetic flux leakage detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |