JP2017028804A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2017028804A5 JP2017028804A5 JP2015143350A JP2015143350A JP2017028804A5 JP 2017028804 A5 JP2017028804 A5 JP 2017028804A5 JP 2015143350 A JP2015143350 A JP 2015143350A JP 2015143350 A JP2015143350 A JP 2015143350A JP 2017028804 A5 JP2017028804 A5 JP 2017028804A5
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- heat generation
- conductor thin
- rotor
- permanent magnet
- 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
- 239000010409 thin film Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 230000001629 suppression Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
Description
また、回転子１２においては、永久磁石３１だけでなく導体薄膜３２も発熱する。そのため、回転子１２全体の発熱量、すなわち、永久磁石３１及び導体薄膜３２の発熱量を考慮して、導体薄膜３２を設計することが好ましい。 In the rotor 12, not only the permanent magnet 31 but also the conductive thin film 32 generates heat. Therefore, it is preferable to design the conductor thin film 32 in consideration of the heat generation amount of the entire rotor 12, that is, the heat generation amounts of the permanent magnet 31 and the conductor thin film 32.
そこで、磁石部２５に導体薄膜３２が設けられている場合のジュール損失Ｗａｌｌが、磁石部２５に導体薄膜３２が設けられていない場合のジュール損失Ｗａｌｌ’よりも小さくなるように、導体薄膜３２の物理量であるパラメータ（Ｎｆ、Ｒｆ、Ｌｆ）、及び、測定周波数ｆｈを設計する。このように設計することにより、回転子１２、すなわち、磁石部２５全体の発熱を抑制することができるため、永久磁石３１の発熱をより確実に抑制することができる。 Therefore, the Joule loss Wall when the conductor thin film 32 is provided in the magnet portion 25 is smaller than the Joule loss Wall ′ when the conductor thin film 32 is not provided in the magnet portion 25. Parameters (Nf, Rf, Lf), which are physical quantities, and a measurement frequency fh are designed. By designing in this way, the heat generation of the rotor 12, that is, the entire magnet unit 25 can be suppressed, so that the heat generation of the permanent magnet 31 can be more reliably suppressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015143350A JP6428520B2 (en) | 2015-07-17 | 2015-07-17 | Magnet temperature estimation system, motor, and magnet temperature estimation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015143350A JP6428520B2 (en) | 2015-07-17 | 2015-07-17 | Magnet temperature estimation system, motor, and magnet temperature estimation method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2017028804A JP2017028804A (en) | 2017-02-02 |
| JP2017028804A5 true JP2017028804A5 (en) | 2018-02-01 |
| JP6428520B2 JP6428520B2 (en) | 2018-11-28 |
Family
ID=57950087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015143350A Active JP6428520B2 (en) | 2015-07-17 | 2015-07-17 | Magnet temperature estimation system, motor, and magnet temperature estimation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6428520B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017127467A1 (en) * | 2017-11-21 | 2019-05-23 | Universität Kassel | Method and system for determining operating parameters of an electrical machine |
| JP6978602B2 (en) * | 2018-06-12 | 2021-12-08 | 株式会社日立製作所 | Permanent magnet synchronous motor drive, drive system and drive method |
| KR102543234B1 (en) * | 2023-05-08 | 2023-06-13 | 전홍섭 | BEMF phase angle measuring device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008125242A (en) * | 2006-11-13 | 2008-05-29 | Meidensha Corp | Permanent magnet type synchronous electric motor |
| JP5860726B2 (en) * | 2012-02-28 | 2016-02-16 | 日立アプライアンス株式会社 | Permanent magnet motor control device, permanent magnet motor, and compressor |
| JP6179389B2 (en) * | 2013-12-24 | 2017-08-16 | 日産自動車株式会社 | Electric motor control device |
-
2015
- 2015-07-17 JP JP2015143350A patent/JP6428520B2/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2017028804A5 (en) | ||
| CN302103847S (en) | Cabinet Cabinets (2) | |
| TH51610S1 (en) | Electric circuit control cabinet | |
| TH136842S (en) | Electric circuit control cabinet | |
| TH170968B (en) | Electric rice cooker | |
| TH161680B (en) | Electric rice cooker | |
| TH170967B (en) | Electric rice cooker | |
| TH128415B (en) | Electric circuit control cabinet | |
| TH61761S1 (en) | Electric circuit control cabinet | |
| TH128415S (en) | Electric circuit control cabinet | |
| TH49591S1 (en) | Electric circuit control cabinet | |
| CN302481963S (en) | Inner pot (lemon type) | |
| CN302509069S (en) | Inner pot (lemon type) | |
| CN302457970S (en) | Page Turning Fan (13Y2) | |
| CN302528919S (en) | Quick boiling water machine (JS2818 type) | |
| JP2015187314A5 (en) | ||
| TH144831B (en) | Electrical calculator | |
| TH48863S1 (en) | Fan parts | |
| CN302342883S (en) | Dolphin Fan (L3) | |
| TH150363S (en) | Electric circuit control cabinet | |
| TH133263S (en) | Electrical control cabinet housing | |
| TH133265S (en) | Electrical control cabinet housing | |
| TH50051S1 (en) | Electrical control cabinet housing | |
| TH133268S (en) | Electrical control cabinet housing | |
| TH50054S1 (en) | Electrical control cabinet housing |