JPS5895960A - Preventing method for overheat of armature coil for dc electric machine - Google Patents
Preventing method for overheat of armature coil for dc electric machineInfo
- Publication number
- JPS5895960A JPS5895960A JP56192836A JP19283681A JPS5895960A JP S5895960 A JPS5895960 A JP S5895960A JP 56192836 A JP56192836 A JP 56192836A JP 19283681 A JP19283681 A JP 19283681A JP S5895960 A JPS5895960 A JP S5895960A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- temperature
- computer
- armature coil
- overheat
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は電機子巻線の温度検出。[Detailed description of the invention] The present invention is for temperature detection of armature windings.
電機子巻線は回転子のため、運転中の温度を測定するた
めには、サーチコイルあるいはサーミスタ等を巻線に埋
め込んでおき、これの信号をスリップリングを介してと
りだす必要があり、このため回転子は複雑な構造となる
ばかりでなく、スリップリングは接点をもつため、常に
メンテナンスが必要であり、信頼性の点でも問題があっ
た。Since the armature winding is a rotor, in order to measure the temperature during operation, it is necessary to embed a search coil or thermistor in the winding and extract the signal from this through a slip ring. Not only does the rotor have a complicated structure, but since the slip ring has contact points, constant maintenance is required, and there are also problems in terms of reliability.
本発明のU的は、最新のマイコン技術の向上と相まって
、回転機の制御や運転記録にとり出している数値を利用
し、簡単な計算から、一番重要な・ 電機子巻線温度を
求め、巻線の異常過熱を未然に防止する方法を提供する
にある。The main objective of the present invention is to use the latest advances in microcomputer technology to control the rotating machine and use numerical values taken from operating records to calculate the most important armature winding temperature through simple calculations. An object of the present invention is to provide a method for preventing abnormal overheating of windings.
第1図は従来の方法で電機子巻線1にサーチコイル2を
埋込み、シャフト3に設けた穴を通してリード線をスリ
ップリング4につなぎ込むことにより、回転中のサーチ
コイルの信号をとり出している。Figure 1 shows a search coil 2 embedded in an armature winding 1 using the conventional method, and a lead wire connected to a slip ring 4 through a hole in a shaft 3 to extract signals from the rotating search coil. There is.
第2図は本発明による実施例を示す。FIG. 2 shows an embodiment according to the invention.
ここでI;負荷電流、v;電機予巻線間電圧(ブラシ間
電圧)、N;回転速度、It ;界磁電流を示してお
り、これらの値は直流機を制御する上で必要な値である
ので、一般には、制御盤にとりこまれている。この値を
計算機(マイ゛コン)にとり入れ、下記の計算をさせる
ことにより、時々刻々の巻線温度が求められる。Here, I: Load current, v: Voltage between electric machine pre-windings (voltage between brushes), N: Rotational speed, It: Field current, and these values are the values necessary to control the DC machine. Therefore, it is generally incorporated into the control panel. By inputting this value into a computer (microcomputer) and performing the calculations below, the momentary winding temperature can be determined.
E=kNXf (If)
R=(V−E)/I
ここで、ル。は読値の温度t。時の抵抗値で、定数とし
て、計算式に入れておく。E=kNXf (If) R=(V-E)/I where Le. is the reading temperature t. It is the resistance value at the time, and is included in the calculation formula as a constant.
本発明によればすべて計算より、正確に巻線の平均高度
が求められるので、ハード上の故障等がなくなり信頼性
が向上する。According to the present invention, the average height of the windings can be determined accurately through calculation, thereby eliminating hardware failures and improving reliability.
第1図は従来のサーチコイルを取り付けた場合の回転子
の断面図、第2図は本発明による計算フローである。FIG. 1 is a sectional view of a rotor when a conventional search coil is attached, and FIG. 2 is a calculation flow according to the present invention.
Claims (1)
転速度、および界磁電流の値を一定の間隔で計算機にと
り込み巻線の温度を刻々と計算させることにより求め、
管理することを特徴とする直流機の電機子巻線の過熱防
止法。1゜The load current during operation, the voltage between the terminals of the winding at that time, the rotational speed, and the field current are input into a computer at regular intervals, and the temperature of the winding is calculated moment by moment.
A method for preventing overheating of the armature winding of a DC machine, which is characterized by controlling.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56192836A JPS5895960A (en) | 1981-12-02 | 1981-12-02 | Preventing method for overheat of armature coil for dc electric machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56192836A JPS5895960A (en) | 1981-12-02 | 1981-12-02 | Preventing method for overheat of armature coil for dc electric machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5895960A true JPS5895960A (en) | 1983-06-07 |
Family
ID=16297782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56192836A Pending JPS5895960A (en) | 1981-12-02 | 1981-12-02 | Preventing method for overheat of armature coil for dc electric machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5895960A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0210767U (en) * | 1988-06-30 | 1990-01-23 | ||
WO1998004893A1 (en) * | 1996-07-25 | 1998-02-05 | Robert Bosch Gmbh | Arrangement for sensing the temperature of the armature of a direct current motor |
DE102010063950A1 (en) * | 2010-12-22 | 2012-06-28 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance e.g. washing machine, has control device determining operating temperature of drive motor depending on winding resistance, so that drive motor is controlled depending on operating temperature |
-
1981
- 1981-12-02 JP JP56192836A patent/JPS5895960A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0210767U (en) * | 1988-06-30 | 1990-01-23 | ||
WO1998004893A1 (en) * | 1996-07-25 | 1998-02-05 | Robert Bosch Gmbh | Arrangement for sensing the temperature of the armature of a direct current motor |
DE102010063950A1 (en) * | 2010-12-22 | 2012-06-28 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance e.g. washing machine, has control device determining operating temperature of drive motor depending on winding resistance, so that drive motor is controlled depending on operating temperature |
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