JPH076719Y2 - Commutatorless motor - Google Patents
Commutatorless motorInfo
- Publication number
- JPH076719Y2 JPH076719Y2 JP1988169188U JP16918888U JPH076719Y2 JP H076719 Y2 JPH076719 Y2 JP H076719Y2 JP 1988169188 U JP1988169188 U JP 1988169188U JP 16918888 U JP16918888 U JP 16918888U JP H076719 Y2 JPH076719 Y2 JP H076719Y2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- commutator
- auxiliary
- main winding
- auxiliary winding
- 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.)
- Expired - Lifetime
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は二個の無整流子電動機を一個の可変周波数電源
装置によって同期運転を行う無整流子電動機の改良に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a non-commutator motor in which two non-commutator motors are synchronously operated by one variable frequency power supply device.
従来の無整流子電動機においては、主巻線と端子電圧と
補助巻線の端子電圧が同一となるよう巻線の有効巻回数
を決定している。In the conventional commutatorless motor, the number of effective turns of the winding is determined so that the terminal voltage of the main winding and the terminal voltage of the auxiliary winding are the same.
また、二個の無整流子電動機の補助巻線を接続する外部
ケーブルのインピーダンスは無視して策定している。In addition, the impedance of the external cable that connects the auxiliary windings of the two non-rectifier motors is neglected.
第３図は一般的な二個の無整流子電動機の構成を示すブ
ロック図、第４図はその等価回路図であり、３は可変周
波数電源装置、４は子モータ、５は親モータ、６は外部
ケーブルである。FIG. 3 is a block diagram showing the configuration of two general commutatorless motors, FIG. 4 is an equivalent circuit diagram thereof, 3 is a variable frequency power supply device, 4 is a child motor, 5 is a parent motor, 6 Is an external cable.
かような構成において、外部ケーブル６のインピーダン
スの内、リアクタンス分は電動機自体のリアクタンス分
に比較して無視できるため、ケーブルの抵抗分のみを考
慮し、分配器信号を取り出している親モータ５の出力を
ゼロとしたときの子モータの出力PM2は で示される。In such a configuration, the reactance component of the impedance of the external cable 6 can be ignored compared to the reactance component of the electric motor itself. Therefore, only the resistance component of the cable is taken into consideration and the parent motor 5 extracting the distributor signal. The output P M2 of the child motor when the output is zero is Indicated by.
ここで、E0は電圧、R2，RCは抵抗 Ｘはリアクタンス
δは相差角 β0は制御設定初期値 ｕは電流重なり角
である。Where E 0 is the voltage, R 2 and R C are the resistances, and X is the reactance.
δ is a phase difference angle β 0 is a control setting initial value u is a current overlapping angle.
そして、RC＝０とRC＝R2としたときの外部ケーブル６の
抵抗の影響を比較したものが第５図に示される特性図で
ある。A characteristic diagram shown in FIG. 5 is a comparison of the effects of the resistance of the external cable 6 when R C = 0 and R C = R 2 .
第５図から、特に低速回転数において差異が大きくな
り、外部ケーブル６の抵抗が大きくなると脱調しやすく
なることが判る。従って、外部ケーブル６を太くするこ
とによって、抵抗分を小さくすることは有効であるが、
ケーブルのコスト，施工時の取扱い，ケーブルピットの
スペース等を考慮すると、余り太くできないのが現状で
ある。From FIG. 5, it can be seen that, especially in the low speed rotation, the difference becomes large, and when the resistance of the external cable 6 becomes large, the step-out easily occurs. Therefore, it is effective to reduce the resistance by increasing the thickness of the external cable 6,
Considering the cost of the cable, handling at the time of construction, and the space of the cable pit, the current situation is that it cannot be made too thick.
本考案は上述した点に鑑みて創案されたもので、その目
的とするところは、低速回転数においても上述した点を
改善した余り太くならない外部ケーブルを使用すること
が可能な無整流子電動機を提供することにある。The present invention was made in view of the above-mentioned points, and an object thereof is to provide a commutatorless electric motor capable of using an external cable which does not become too thick and which has improved the above-mentioned points even at a low rotational speed. To provide.
つまり、その目的を達成するための手段は、一個の可変
周波数電源装置によって駆動される二個の無整流子電動
機を備え、このいずれか一方に備えた回転子位置検出器
の出力信号によって制御される無整流子電動機におい
て、前記可変周波数電源装置より電力を受ける主巻線
と、二個の無整流子電動機間の電力を授受する補助巻線
とを無整流子電動機に備えたこれらの端子電圧が、それ
ぞれ異なるよう主巻線より補助巻線の方のターン数を増
すように構成したことにある。That is, the means for achieving the object comprises two non-commutator motors driven by one variable frequency power supply device, and is controlled by the output signal of the rotor position detector provided in either one of them. In the non-commutator motor, a main winding that receives power from the variable frequency power supply and an auxiliary winding that exchanges power between the two non-rectifier motors are provided in the non-commutator motor. However, the number of turns of the auxiliary winding is larger than that of the main winding so that they are different from each other.
すなわち、本考案では外部ケーブルの影響を少なくする
ため、前述の（１）式を考擦することにより、補助巻線
の有効巻回数を増加させ、電圧E0を大きくするものであ
る。That is, in the present invention, in order to reduce the influence of the external cable, the number of effective windings of the auxiliary winding is increased and the voltage E 0 is increased by considering the equation (1).
一例として補助巻線の有効巻回数を２倍とすると、電圧
E0は２倍、抵抗Ｒ分，リアクタンスＸ分は４倍となり、
前述のP0は、 となり、第２図に示すごとく、外部ケーブルの抵抗は見
掛け上1/4になることがわかる。As an example, if the number of effective turns of the auxiliary winding is doubled, the voltage
E 0 is double, resistance R and reactance X are 4 times,
The above P 0 is As shown in Fig. 2, it can be seen that the resistance of the external cable is apparently 1/4.
次に、その作用について説明する。Next, the operation will be described.
二個の電動機が不平衡負荷となった場合、負荷の差分は
補助巻線を通して電力が授受されるが、外部ケーブルに
おいてその抵抗分により電力損失が生ずる。無整流子電
動機において電圧E0及びリアクタンス分Ｘは回転数に比
例するが、抵抗Ｒ分はほぼ一定である。従って、低速回
転数において抵抗分の影響は外部ケーブルを含めて無視
できない。When the two motors become unbalanced loads, the difference between the loads is transmitted and received through the auxiliary winding, but the external cable causes a power loss due to its resistance. In the commutatorless motor, the voltage E 0 and the reactance component X are proportional to the rotation speed, but the resistance R component is almost constant. Therefore, the influence of the resistance component at the low speed rotation cannot be ignored including the external cable.
トルクの増大を図るためには補助巻線及び外部ケーブル
の抵抗を小さくすればよいが、電動機の場合有効巻回数
を一定とすると巻線の断面積を大きくすることで、これ
は電動機自体の体格を大きくすることであり好ましくな
い。ケーブルもまた前述のように制限があるため、余り
太くできない。In order to increase the torque, it is sufficient to reduce the resistance of the auxiliary winding and the external cable, but in the case of an electric motor, if the number of effective windings is constant, the cross-sectional area of the winding is increased. Is to be increased, which is not preferable. The cable cannot be made too thick due to the limitation as described above.
このような点を改良し、本考案では電動機自体の体格を
変えることなく、外部ケーブルもまた変えることなく、
外部ケーブル内の電力損失を抑え、その分主巻線より補
助巻線のターン数を増すことによって抵抗分を増し、ト
ルクの増大を図っている。By improving such a point, the present invention does not change the physique of the electric motor itself and also changes the external cable,
The power loss in the external cable is suppressed, and the number of turns of the auxiliary winding is increased from that of the main winding to increase the resistance and increase the torque.
以下、本考案の一実施例を、図面に基づいて詳述する。An embodiment of the present invention will be described below in detail with reference to the drawings.
第１図は本考案のものの一実施例を説明するための主要
部概略図、第６図は第１図の各巻線部分を示す説明図、
第２図はそのトルク比較図であり、１は主巻線、２は補
助巻線である。なお、全体構成に関しては第３図及び第
７図にて説明を行っているので、それを参照して以下に
説明する。FIG. 1 is a schematic view of a main part for explaining one embodiment of the present invention, and FIG. 6 is an explanatory view showing each winding part of FIG. 1,
FIG. 2 is a torque comparison chart thereof, in which 1 is a main winding and 2 is an auxiliary winding. The overall configuration has been described with reference to FIGS. 3 and 7, and will be described below with reference to it.
第１図，第３図，第７図において、可変周波数電源装置
３より電力を受ける主巻線１と、二個の無整流子電動
機、子モータ４と親モータ５間の電力を授受する補助巻
線２とをそれぞれのモータ間に備え、これらの端子電圧
がそれぞれ異なるよう主巻線１より補助巻線２のターン
数を増やすように構成されている。In FIG. 1, FIG. 3, and FIG. 7, the main winding 1 receiving electric power from the variable frequency power supply device 3, two non-commutator electric motors, and an auxiliary for exchanging electric power between the child motor 4 and the parent motor 5. The winding 2 is provided between the respective motors, and the number of turns of the auxiliary winding 2 is increased from that of the main winding 1 so that these terminal voltages are different.
今、電源が400Vの場合、電動機の主巻線1,補助巻線２は
200Vで設計製作される。一例として、補助巻線２の一相
分は２回路並列接続であるとすると、400V用にするには
１回路接続とすることにより簡単に実現できる。When the power supply is 400V, the main winding 1 and auxiliary winding 2 of the motor are
Designed and manufactured at 200V. As an example, if one phase of the auxiliary winding 2 has two circuits connected in parallel, it can be easily realized by one circuit connection for 400V.
以上説明したごとく本考案によれば、補助巻線２のター
ン数を主巻線１より増すだけで、例えば外部ケーブルが
22mm2100Mで電圧が200Vの場合、400Vにすることにより
外部ケーブルを5.5mm2100M又は22mm2400Mと等価にな
り、外部ケーブル選択の範囲が拡大することが可能であ
るなど種々の利点を備えている。As described above, according to the present invention, it is possible to increase the number of turns of the auxiliary winding 2 more than that of the main winding 1, and
With 22mm 2 100M and 200V voltage, setting 400V makes the external cable equivalent to 5.5mm 2 100M or 22mm 2 400M, and has various advantages such as expanding the range of external cable selection. ing.
第１図は本考案のものの一実施例を説明するための主要
部概略図、第２図はそのトルク比較図、第３図は一般的
な二個の無整流子電動機の構成を示すブロック図、第４
図はその等価回路図、第５図は従来のもののトルク比較
図である。 第６図は第１図の各巻線部分を示す説明図、第７図は第
３図の接続状態を示す接続図である。 １……主巻線、２……補助巻線、３……可変周波数電源
装置、４……子モータ、５……親モータ、６……外部ケ
ーブル。FIG. 1 is a schematic view of main parts for explaining an embodiment of the present invention, FIG. 2 is a torque comparison diagram thereof, and FIG. 3 is a block diagram showing a configuration of two general non-commutator motors. , 4th
FIG. 5 is an equivalent circuit diagram thereof, and FIG. 5 is a torque comparison diagram of a conventional one. FIG. 6 is an explanatory view showing each winding portion of FIG. 1, and FIG. 7 is a connection diagram showing a connection state of FIG. 1 ... Main winding, 2 ... Auxiliary winding, 3 ... Variable frequency power supply device, 4 ... Child motor, 5 ... Parent motor, 6 ... External cable.
Claims (1)
れる二個の無整流子電動機を備え、このいずれか一方に
備えた回転子位置検出器の出力信号によって制御される
無整流子電動機において、前記可変周波数電源装置より
電力を受ける主巻線と、二個の無整流子電動機間の電力
を授受する前記主巻線と同じスロットに配置される補助
巻線とを無整流子電動機に備え、前記補助巻線は並列に
同相接続し、主巻線は直列に同相接続し、主巻線と補助
巻線の端子電圧が、それぞれ異なるよう前記主巻線のタ
ーン数より前記補助巻線のターン数を増やすように構成
したことを特徴とする無整流子電動機。1. A non-commutator electric motor comprising two non-commutator electric motors driven by one variable frequency power supply device and controlled by an output signal of a rotor position detector provided in either one of the two. A main winding that receives electric power from the variable frequency power supply device and an auxiliary winding that is arranged in the same slot as the main winding that exchanges electric power between two non-commutator electric motors are provided in the non-commutator electric motor, The auxiliary windings are connected in parallel in the same phase, the main windings are connected in series in the same phase, and the main winding and the auxiliary winding have different terminal voltages, so that the auxiliary winding turns are different from the number of turns of the main winding. A commutatorless electric motor characterized by being configured to increase the number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988169188U JPH076719Y2 (en) | 1988-12-28 | 1988-12-28 | Commutatorless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988169188U JPH076719Y2 (en) | 1988-12-28 | 1988-12-28 | Commutatorless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0291495U JPH0291495U (en) | 1990-07-19 |
| JPH076719Y2 true JPH076719Y2 (en) | 1995-02-15 |
Family
ID=31699691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988169188U Expired - Lifetime JPH076719Y2 (en) | 1988-12-28 | 1988-12-28 | Commutatorless motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076719Y2 (en) |
-
1988
- 1988-12-28 JP JP1988169188U patent/JPH076719Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0291495U (en) | 1990-07-19 |
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