JP6248246B2 - Method and apparatus for detecting disconnection of redundant VR synchro - Google Patents

Method and apparatus for detecting disconnection of redundant VR synchro Download PDF

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JP6248246B2
JP6248246B2 JP2014063415A JP2014063415A JP6248246B2 JP 6248246 B2 JP6248246 B2 JP 6248246B2 JP 2014063415 A JP2014063415 A JP 2014063415A JP 2014063415 A JP2014063415 A JP 2014063415A JP 6248246 B2 JP6248246 B2 JP 6248246B2
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雅宏 酒井
雅宏 酒井
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Tamagawa Seiki Co Ltd
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本発明は、冗長型ＶＲシンクロの断線検出方法及び装置に関し、特に、励磁電源に対して励磁信号線部を並列一対構成とし、各励磁信号線部の一方が断線した場合に出力側の出力レベルが半分となることで、断線検出を可能とするための新規な改良に関する。   The present invention relates to a disconnection detection method and apparatus for redundant VR synchro, and in particular, an excitation signal line portion is configured in parallel as a pair with respect to an excitation power source, and an output level on the output side when one of the excitation signal line portions is disconnected It is related with the novel improvement for enabling disconnection detection because it becomes half.

従来、用いられていたこの種のレゾルバとしては、文献名は挙げていないが、例えば、図３及び図４で示される従来構成を挙げることができる。
すなわち、図３において符号１で示されるものは輪状ステータであり、この輪状ステータ１の周知の突出磁極(図示せず)には、１２０°毎のスター結線となる出力巻線からなる第１〜第３出力信号線２,３,４が設けられ、前記各出力信号線２,３,４からは第１〜第３シンクロ信号２ａ，３ａ，４ａが出力されるように構成されている。 Conventionally, as this type of resolver used, no literature name is given, but for example, the conventional configuration shown in FIGS. 3 and 4 can be mentioned.
That is, what is denoted by reference numeral 1 in FIG. 3 is a ring-shaped stator, and a well-known projecting magnetic pole (not shown) of the ring-shaped stator 1 includes first to first output windings that form star connections every 120 °. Third output signal lines 2, 3, and 4 are provided, and the first to third sync signals 2a, 3a, and 4a are output from the output signal lines 2, 3, and 4, respectively.

前記輪状ステータ１の前記突出磁極には、励磁巻線からなる励磁信号線５が設けられ、この励磁信号線５は図示しない周知のＳ／Ｄ変換器の励磁電源６に接続されている。
尚、前記各出力信号線２,３,４のグランド側ＧＮＤと前記励磁信号線５のグランド側ＧＮＤとは、互いに接続されて接地されている。
前記輪状ステータ１の内側には、ＶＲ（バリアブルリラクタンス）型のロータ１０が回転自在に設けられている。 The projecting magnetic pole of the ring-shaped stator 1 is provided with an excitation signal line 5 composed of an excitation winding, and this excitation signal line 5 is connected to an excitation power source 6 of a well-known S / D converter (not shown).
Incidentally, the ground side GND of each of the output signal lines 2, 3, 4 and the ground side GND of the excitation signal line 5 are connected to each other and grounded.
A VR (variable reluctance) type rotor 10 is rotatably provided inside the annular stator 1.

前述の図３において、前記励磁電源６からの励磁信号６ａが前記励磁信号線５に供給されている状態下で、ロータ１０が回転すると、ロータ１０が真円ではなく所定のギャップパーミアンスが得られるように非円形に構成されているため、前記各出力信号線２,３,４からは前記ギャップパーミアンスに応じた回転角度信号である第１〜第３シンクロ信号２ａ，３ａ，４ａが出力され、前記各シンクロ信号２ａ，３ａ，４ａは、図示しない周知のＳ／Ｄ変換器によってデジタル信号化される。
尚、図３の通常時における前述の各出力信号線２,３,４からの出力方程式は、次の数１の第１式で示される通りである。 In FIG. 3 described above, when the rotor 10 rotates in a state where the excitation signal 6a from the excitation power source 6 is supplied to the excitation signal line 5, the rotor 10 is not a perfect circle but a predetermined gap permeance is obtained. Thus, the first to third sync signals 2a, 3a and 4a, which are rotation angle signals corresponding to the gap permeance, are output from the output signal lines 2, 3, and 4, respectively. Each sync signal 2a, 3a, 4a is converted into a digital signal by a well-known S / D converter (not shown).
Note that the output equation from each of the output signal lines 2, 3, and 4 in the normal state of FIG. 3 is as shown by the first expression of the following equation (1).

Figure 0006248246
Figure 0006248246

次に、前述の図３の通常時において、図４で示されるように前記励磁信号線５に断線が発生すると、断線時における出力方程式は、次の数２の第２式で示されるように、出力信号は零となる。   Next, when the disconnection occurs in the excitation signal line 5 as shown in FIG. 4 at the normal time of FIG. 3, the output equation at the time of the disconnection is as shown by the following second equation (2). The output signal becomes zero.

Figure 0006248246
Figure 0006248246

また、他の従来構成を示す文献としては、特許文献１の冗長型回転角検出装置を挙げることができる。
この特許文献１の構成においては、一対のレゾルバを用いて検出していた。 Further, as a document showing another conventional configuration, the redundant rotation angle detection device of Patent Document 1 can be cited.
In the configuration of Patent Document 1, detection is performed using a pair of resolvers.

特開２００９−２１０２８１号公報JP 2009-210281 A

従来の冗長型ＶＲシンクロは、以上のように構成されていたため、次のような課題が存在していた。
すなわち、図３及び図４で示される従来構成の場合、励磁巻線である励磁信号線が１個のみであるため、この励磁信号線が断線した場合には、各出力信号線からは出力が零となり、ＶＲシンクロを装着している装置全体に重大な悪影響を与えることになっていた。
また、特許文献１の構成においては、レゾルバを２個用いると共に、各レゾルバの出力信号を処理するためのＲ／Ｄ変換系を二系統設けなくてはならず、コスト上は大きい障害となっていた。 Since the conventional redundant VR synchro is configured as described above, the following problems exist.
That is, in the case of the conventional configuration shown in FIGS. 3 and 4, since there is only one excitation signal line that is an excitation winding, when this excitation signal line is disconnected, an output is output from each output signal line. As a result, the entire apparatus equipped with the VR synchro was seriously adversely affected.
In the configuration of Patent Document 1, two resolvers must be used and two R / D conversion systems for processing the output signals of each resolver must be provided, which is a major obstacle in terms of cost. It was.

本発明は、以上のような課題を解決するためになされたもので、特に、励磁電源に対して励磁信号線を並列一対構成とし、励磁信号線の一方が断線した場合に出力側の出力レベルが半分となることで、断線検出を可能とする冗長型ＶＲシンクロの断線検出方法及び装置を提供することを目的とする。   The present invention has been made in order to solve the above-described problems. In particular, the output level on the output side when the excitation signal line is configured as a parallel pair configuration with respect to the excitation power source and one of the excitation signal lines is disconnected. Therefore, an object of the present invention is to provide a disconnection detection method and apparatus for redundant VR sync that enables disconnection detection.

本発明による冗長型ＶＲシンクロの断線検出方法は、輪状ステータに設けられ励磁電源に接続された励磁信号線と、前記輪状ステータに設けられ三相の第１〜第３出力信号線と、前記輪状ステータの内側に回転自在に設けられ磁性体からなるロータとを備え、前記励磁信号線による励磁状態下で前記ロータが回転することにより、前記第１〜第３出力信号線から第１〜第３シンクロ信号を得るようにしたＶＲシンクロにおいて、前記励磁信号線は励磁電源に対して並列に接続された第１、第２励磁信号線部からなり、前記第１〜第３出力信号線の３相中２相の１２０°位相差の出力信号から合成したｓｉｎθ及びｃｏｓθ信号はｓｉｎ２θ＋ｃｏｓ２θ＝Ｋで一定となり、前記Ｋが１／４Ｋとなった場合は、前記第１、第２励磁信号線部の何れかが断線であると判断すると共に、前記第１〜第３シンクロ信号の出力電圧は、前記第１、第２励磁信号線部が断線ではない通常時の半分となり、前記断線の検出と冗長の維持ができる方法であり、また、本発明による冗長型ＶＲシンクロの断線検出装置は、輪状ステータに設けられ１個のみの励磁電源に接続された励磁信号線と、前記輪状ステータに設けられ三相の第１〜第３出力信号線と、前記輪状ステータの内側に回転自在に設けられ磁性体からなるロータとを備え、前記励磁信号線による励磁状態下で前記ロータが回転することにより、前記第１〜第３出力信号線から第１〜第３シンクロ信号を得るようにしたＶＲシンクロにおいて、前記励磁信号線は励磁電源に対して並列に接続された第１、第２励磁信号線部からなり、前記第１〜第３出力信号線の３相中２相の１２０°位相差の出力信号から合成したｓｉｎθ及びｃｏｓθ信号はｓｉｎ２θ＋ｃｏｓ２θ＝Ｋで一定となり、前記Ｋが１／４Ｋとなった場合は、前記第１、第２励磁信号線部の何れかが断線であると判断すると共に、前記第１〜第３シンクロ信号の出力電圧は、前記第１、第２励磁信号線部が断線ではない通常時の半分となり、前記断線の検出と冗長の維持ができるように構成したものである。 According to the present invention, there is provided a method of detecting disconnection of a redundant VR synchro, an excitation signal line provided in an annular stator and connected to an excitation power source, a three-phase first to third output signal line provided in the annular stator, and the annular shape. And a rotor made of a magnetic material rotatably provided inside the stator, and the first to third output signal lines from the first to third output signal lines by rotating the rotor under excitation by the excitation signal lines. In the VR sync for obtaining a sync signal, the excitation signal line includes first and second excitation signal lines connected in parallel to the excitation power source, and includes three phases of the first to third output signal lines. The sin θ and cos θ signals synthesized from the output signals of the 120 ° phase difference of the middle two phases are constant at sin 2 θ + cos 2 θ = K, and when the K becomes 1/4 K, the first and second excitations What in the signal line section It is determined that this is a disconnection, and the output voltage of the first to third sync signals is half that of the normal time when the first and second excitation signal line portions are not disconnected. The redundant VR synchro disconnection detecting device according to the present invention includes an excitation signal line provided in the ring-shaped stator and connected to only one excitation power source, and a ring-shaped stator. The first to third output signal lines of the phase and a rotor made of a magnetic material that is rotatably provided inside the annular stator, and the rotor rotates under the excitation state by the excitation signal line, In the VR sync in which the first to third sync signals are obtained from the first to third output signal lines, the excitation signal lines are connected from the first and second excitation signal lines connected in parallel to the excitation power source. The first Synthesized sinθ and cosθ signal from the output signal of the 120 ° phase difference between the 3 Aichu 2 phase to third output signal line becomes constant at sin 2 θ + cos 2 θ = K, if the K becomes 1/4 K Determines that one of the first and second excitation signal line portions is disconnected, and the output voltage of the first to third synchronization signals is that the first and second excitation signal line portions are disconnected. This is half the normal time, so that the disconnection can be detected and the redundancy can be maintained .

本発明による冗長型ＶＲシンクロの断線検出方法及び装置は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、輪状ステータに設けられ１個のみの励磁電源に接続された励磁信号線と、前記輪状ステータに設けられ三相の第１〜第３出力信号線と、前記輪状ステータの内側に回転自在に設けられ磁性体からなるロータとを備え、前記励磁信号線による励磁状態下で前記ロータが回転することにより、前記第１〜第３出力信号線から第１〜第３シンクロ信号を得るようにしたＶＲシンクロにおいて、前記励磁信号線は励磁電源に対して並列に接続された第１、第２励磁信号線部からなり、前記第１〜第３出力信号線の３相中２相の１２０°位相差の出力信号から合成したｓｉｎθ及びｃｏｓθ信号はｓｉｎ２θ＋ｃｏｓ２θ＝Ｋで一定となり、前記Ｋが１／４Ｋとなった場合は、前記第１、第２励磁信号線部の何れかが断線であると判断することにより、励磁側の第１、第２励磁信号線部の何れかが断線した場合、出力側の各シンクロ信号の出力電圧は半分となるが、角度検出信号の出力は維持することができ、冗長を得ることができる。 Since the redundant VR synchro disconnection detection method and apparatus according to the present invention is configured as described above, the following effects can be obtained.
That is, an excitation signal line provided on the ring-shaped stator and connected to only one excitation power source, a three-phase first to third output signal lines provided on the ring-shaped stator, and rotatable inside the ring-shaped stator. And a rotor made of a magnetic material, and the first to third sync signals are obtained from the first to third output signal lines by rotating the rotor under the excitation state by the excitation signal line. In the VR synchronization, the excitation signal line is composed of first and second excitation signal lines connected in parallel to the excitation power source, and is about 120 ° of two phases out of the three phases of the first to third output signal lines. The sin θ and cos θ signals synthesized from the phase difference output signal are constant at sin 2 θ + cos 2 θ = K, and when K becomes 1/4 K, either the first or second excitation signal line portion is Judge that it is disconnected Thus, when one of the excitation side first and second excitation signal lines is broken, the output voltage of each sync signal on the output side is halved, but the output of the angle detection signal can be maintained, Redundancy can be obtained.

本発明による冗長型ＶＲシンクロの断線検出方法及び装置を示す構成図である。1 is a configuration diagram showing a redundant VR synchro disconnection detecting method and apparatus according to the present invention; FIG. 図１の断線発生状態を示す構成図である。It is a block diagram which shows the disconnection generation state of FIG. 従来のＶＲシンクロを示す構成図である。It is a block diagram which shows the conventional VR synchro. 図３の断線発生状態を示す構成図である。It is a block diagram which shows the disconnection generation state of FIG.

本発明による冗長型ＶＲシンクロの断線検出方法及び装置は、励磁電源に対して励磁信号線を並列一対構成とし、各励磁信号線部を並列一対構成とし、各励磁信号線部の一方が断線した場合に出力側の出力レベルが半分となることで断線検出を可能とすることである。   The redundant VR sync line disconnection detection method and apparatus according to the present invention has a pair of parallel excitation signal lines for the excitation power source, a pair of parallel excitation signal lines, and one of the excitation signal line sections is disconnected. In this case, the disconnection can be detected when the output level on the output side is halved.

以下、図面と共に本発明による冗長型ＶＲシンクロの断線検出方法及び装置の好適な実施の形態について説明する。
尚、従来例と同一又は同等部分には同一符号を付して説明する。
図１において符号１で示されるものは、輪状ステータであり、この輪状ステータ１の周知の突出磁極(図示せず)には、１２０°毎のスター結線となる出力巻線からなる第１〜第３出力信号線２,３,４が設けられ、前記各出力信号線２,３,４からは第１〜第３シンクロ信号２ａ，３ａ，４ａが出力されるように構成されている。 A preferred embodiment of a disconnection detection method and apparatus for redundant VR sync according to the present invention will be described below with reference to the drawings.
In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
1 is a ring-shaped stator, and a known projecting magnetic pole (not shown) of the ring-shaped stator 1 includes first to first output windings that form star connections every 120 °. Three output signal lines 2, 3, and 4 are provided, and the first to third sync signals 2a, 3a, and 4a are output from the output signal lines 2, 3, and 4, respectively.

前記輪状ステータ１の前記突出磁極には、励磁巻線からなる励磁信号線５が設けられ、この励磁信号線５の第１、第２励磁信号線部５ａ，５ｂは、互いに並列配線となるように構成されていると共に、図示しない周知のＳ／Ｄ変換器の１個のみの励磁電源６に接続されている。
尚、前記各出力信号線２,３,４のグランド側ＧＮＤと前記各励磁信号線部５ａ，５ｂのグランド側ＧＮＤと前記励磁信号線５のグランド側ＧＮＤとは、互いに接続されて接地されている。
前記輪状ステータ１の内側には、ＶＲ（バリアブルリラクタンス）型のロータ１０が回転自在に設けられている。 The projecting magnetic pole of the ring-shaped stator 1 is provided with an excitation signal line 5 formed of an excitation winding, and the first and second excitation signal line portions 5a and 5b of the excitation signal line 5 are parallel to each other. And is connected to only one excitation power source 6 of a well-known S / D converter (not shown).
The ground side GND of each of the output signal lines 2, 3, and 4, the ground side GND of each of the excitation signal line portions 5a and 5b, and the ground side GND of the excitation signal line 5 are connected to each other and grounded. Yes.
A VR (variable reluctance) type rotor 10 is rotatably provided inside the annular stator 1.

前述の図１において、前記励磁電源６からの励磁信号６ａが前記励磁信号線部５ａ，５ｂに供給されている状態下で、ロータ１０が回転すると、ロータ１０が真円ではなく所定のギャップパーミアンスが得られるように非円形に構成されているため、前記各出力信号線２,３,４からは前記ギャップパーミアンスに応じた回転角度信号２ａ，３ａ，４ａが出力され、前記シンクロ信号２ａ，３ａ，４ａは図示しない周知のＳ／Ｄ変換器によってデジタル信号化される。
尚、図１の通常時における前述の各出力信号線２,３,４からの出力方程式は、次の数１の第１式で示される通りである。 In FIG. 1 described above, when the rotor 10 rotates in a state where the excitation signal 6a from the excitation power source 6 is supplied to the excitation signal lines 5a and 5b, the rotor 10 is not a perfect circle but a predetermined gap permeance. Therefore, rotation angle signals 2a, 3a, 4a corresponding to the gap permeance are output from the output signal lines 2, 3, 4 so that the synchro signals 2a, 3a are obtained. , 4a are converted into digital signals by a well-known S / D converter (not shown).
Note that the output equation from each of the output signal lines 2, 3, and 4 in the normal state of FIG. 1 is as shown by the first expression of the following equation (1).

Figure 0006248246
Figure 0006248246

次に、前述の図１の前記第１、第２励磁信号５ａ，５ｂが断線ではない通常時において、図２で示されるように前記励磁信号線部５ａ，５ｂの何れかに断線が発生すると、各励磁信号線部５ａ，５ｂの巻線数は同一で構成されているため、断線した方の第１励磁信号線部５ａからの励磁信号６ａはなくなり、他方の第２励磁信号線部５ｂへの励磁信号６ａのみによる各出力信号線２〜４からの各シングル信号２ａ〜４ａとなり、この時の出力側の出力方程式は次の数３の第３式で示される通り、前述の第１式で得られる通常時の出力電圧レベルの２分の１となり、断線の検出と冗長の維持が可能で、この状態を断線として装置の稼働を停止させることもできる。さらに、他方の第２励磁信号線５ｂを断線した場合は出力電圧は零となり、装置の稼働は不能となる。 Next, when the first and second excitation signals 5a and 5b in FIG. 1 are not disconnected, the disconnection occurs in any one of the excitation signal lines 5a and 5b as shown in FIG. Since the excitation signal line portions 5a and 5b have the same number of windings, the excitation signal 6a from the first excitation signal line portion 5a that is disconnected is eliminated, and the other second excitation signal line portion 5b. The single signals 2a to 4a from the output signal lines 2 to 4 by only the excitation signal 6a to the output signal, and the output equation on the output side at this time is the above-mentioned first equation as shown by the following third equation (3). The output voltage level at the normal time obtained by the equation is ½, and disconnection can be detected and redundancy can be maintained. The operation of the apparatus can be stopped by using this state as a disconnection. Further, when the other second excitation signal line 5b is disconnected, the output voltage becomes zero, and the apparatus cannot be operated.

Figure 0006248246
Figure 0006248246

従って、本発明による冗長型ＶＲシンクロの断線検出方法及び装置の要旨とするところは、次の通りである。
輪状ステータ１に設けられ１個のみの励磁電源６に接続された励磁信号線５と、前記輪状ステータ１に設けられ三相の第１〜第３出力信号線２,３,４と、前記輪状ステータ１の内側に回転自在に設けられ磁性体からなるロータ１０とを備え、前記励磁信号線５による励磁状態下で前記ロータ１０が回転することにより、前記第１〜第３出力信号線２,３,４から第１〜第３シンクロ信号２ａ,３ａ,４ａを得るようにしたＶＲシンクロにおいて、前記励磁信号線５は励磁電源６に対して並列に接続された第１、第２励磁信号線部５ａ，５ｂからなり、前記第１〜第３出力信号線２,３,４の３相中２相の１２０°位相差の出力信号から合成したｓｉｎθ及びｃｏｓθ信号はｓｉｎ２θ＋ｃｏｓ２θ＝Ｋで一定となり、前記Ｋが１／４Ｋとなった場合は、前記第１、第２励磁信号線部５ａ,５ｂの何れかが断線であると判断すると共に、前記第１〜第３シンクロ信号２ａ,３ａ,４ａの出力電圧は、前記第１、第２励磁信号線部５ａ,５ｂが断線ではない通常時の半分となり、前記断線の検出と冗長の維持ができる方法と構成である。 Accordingly, the gist of the redundant VR synchro disconnection detection method and apparatus according to the present invention is as follows.
An excitation signal line 5 provided on the ring-shaped stator 1 and connected to only one excitation power source 6; three-phase first to third output signal lines 2, 3, 4 provided on the ring-shaped stator 1; A rotor 10 made of a magnetic material that is rotatably provided inside the stator 1, and the rotor 10 rotates under the excitation state of the excitation signal line 5, whereby the first to third output signal lines 2, In the VR synchronization in which the first to third synchronization signals 2a, 3a, 4a are obtained from the third and fourth signals, the excitation signal line 5 is connected to the excitation power source 6 in parallel. And the sin θ and cos θ signals synthesized from the output signals of the 120 ° phase difference of the two phases of the three phases of the first to third output signal lines 2, 3, 4 are sin 2 θ + cos 2 θ = K. in becomes constant, if the K becomes 1/4 K is Said first, second excitation signal line section 5a, with either 5b is determined to be disconnected, the first to third synchro signal 2a, 3a, the output voltage of the 4a, the first, second excitation The signal line portions 5a and 5b are half the normal time that is not broken, and the method and configuration are capable of detecting the break and maintaining redundancy .

尚、本発明における冗長型ＶＲシンクロの断線検出方法及び装置における前述の第１式及び第２式における周知の演算は、図示しない前述のＳ／Ｄ変換器又は演算部によって行われる。   Note that the well-known calculation in the above-described first and second expressions in the redundant VR sync disconnection detection method and apparatus according to the present invention is performed by the above-described S / D converter or calculation unit (not shown).

本発明による冗長型ＶＲシンクロの断線検出方法及び装置は、励磁信号線を一対の励磁信号線部として冗長性を持たせているため、何れか一方の励磁信号線部が断線した場合でもシンクロの機能を継続すると共に、断線状態を検出と冗長の維持をすることができる。 In the redundant VR synchro disconnection detection method and apparatus according to the present invention, since the excitation signal line is provided with redundancy as a pair of excitation signal line portions, even if one of the excitation signal line portions is disconnected, the synchro While continuing the function, it is possible to detect a disconnection state and maintain redundancy .

１ 輪状ステータ
２ 第１出力信号線
２ａ 第１シンクロ信号
３ 第２出力信号線
３ａ 第２シンクロ信号
４ 第３出力信号線
４ａ 第３シンクロ信号
５ 励磁信号線
５ａ 第１励磁信号線部
５ｂ 第２励磁信号線部
６ 励磁電源
６ａ 励磁信号
１０ ロータ DESCRIPTION OF SYMBOLS 1 Ring-shaped stator 2 1st output signal line 2a 1st sync signal 3 2nd output signal line 3a 2nd sync signal 4 3rd output signal line 4a 3rd sync signal 5 Excitation signal line 5a 1st excitation signal line part 5b 2nd Excitation signal line 6 Excitation power supply 6a Excitation signal 10 Rotor

Claims (2)

輪状ステータ(1)に設けられ１個のみの励磁電源(6)に接続された励磁信号線(5)と、前記輪状ステータ(1)に設けられ三相の第１〜第３出力信号線(2,3,4)と、前記輪状ステータ(1)の内側に回転自在に設けられ磁性体からなるロータ(10)とを備え、
前記励磁信号線(5)による励磁状態下で前記ロータ(10)が回転することにより、前記第１〜第３出力信号線(2,3,4)から第１〜第３シンクロ信号(2a,3a,4a)を得るようにしたＶＲシンクロにおいて、
前記励磁信号線(5)は励磁電源(6)に対して並列に接続された第１、第２励磁信号線部(5a,5b)からなり、
前記第１〜第３出力信号線(2,3,4)の３相中２相の１２０°位相差の出力信号から合成したｓｉｎθ及びｃｏｓθ信号はｓｉｎ２θ＋ｃｏｓ２θ＝Ｋで一定となり、前記Ｋが１／４Ｋとなった場合は、前記第１、第２励磁信号線部(5a,5b)の何れかが断線であると判断すると共に、前記第１〜第３シンクロ信号(2a,3a,4a)の出力電圧は、前記第１、第２励磁信号線部(5a,5b)が断線ではない通常時の半分となり、前記断線の検出と冗長の維持ができることを特徴とする冗長型ＶＲシンクロの断線検出方法。 An excitation signal line (5) provided on the ring-shaped stator (1) and connected to only one excitation power source (6), and three-phase first to third output signal lines (provided on the ring-shaped stator (1)) ( 2, 3, 4), and a rotor (10) made of a magnetic material rotatably provided inside the annular stator (1),
When the rotor (10) rotates under the excitation state by the excitation signal line (5), the first to third sync signals (2a, 2) are transmitted from the first to third output signal lines (2, 3, 4). In the VR sync which is to obtain 3a, 4a)
The excitation signal line (5) comprises first and second excitation signal lines (5a, 5b) connected in parallel to the excitation power source (6).
The sin θ and cos θ signals synthesized from the two-phase output signals of 120 ° phase difference among the three phases of the first to third output signal lines (2, 3, 4) are constant at sin 2 θ + cos 2 θ = K, When K becomes 1/4 K, it is determined that one of the first and second excitation signal lines (5a, 5b) is broken, and the first to third sync signals (2a, 5b) are determined . The output voltage of 3a, 4a) is half of the normal time when the first and second excitation signal line portions (5a, 5b) are not disconnected, so that the disconnection can be detected and the redundancy can be maintained. Type VR synchro disconnection detection method. 輪状ステータ(1)に設けられ１個のみの励磁電源(6)に接続された励磁信号線(5)と、前記輪状ステータ(1)に設けられ三相の第１〜第３出力信号線(2,3,4)と、前記輪状ステータ(1)の内側に回転自在に設けられ磁性体からなるロータ(10)とを備え、
前記励磁信号線(5)による励磁状態下で前記ロータ(10)が回転することにより、前記第１〜第３出力信号線(2,3,4)から第１〜第３シンクロ信号(2a,3a,4a)を得るようにしたＶＲシンクロにおいて、
前記励磁信号線(5)は励磁電源(6)に対して並列に接続された第１、第２励磁信号線部(5a,5b)からなり、
前記第１〜第３出力信号線(2,3,4)の３相中２相の１２０°位相差の出力信号から合成したｓｉｎθ及びｃｏｓθ信号はｓｉｎ２θ＋ｃｏｓ２θ＝Ｋで一定となり、前記Ｋが１／４Ｋとなった場合は、前記第１、第２励磁信号線部(5a,5b)の何れかが断線であると判断すると共に、前記第１〜第３シンクロ信号(2a,3a,4a)の出力電圧は、前記第１、第２励磁信号線部(5a,5b)が断線ではない通常時の半分となり、前記断線の検出と冗長の維持ができるように構成したことを特徴とする冗長型ＶＲシンクロの断線検出装置。 An excitation signal line (5) provided on the ring-shaped stator (1) and connected to only one excitation power source (6), and three-phase first to third output signal lines (provided on the ring-shaped stator (1)) ( 2, 3, 4), and a rotor (10) made of a magnetic material rotatably provided inside the annular stator (1),
When the rotor (10) rotates under the excitation state by the excitation signal line (5), the first to third sync signals (2a, 2) are transmitted from the first to third output signal lines (2, 3, 4). In the VR sync which is to obtain 3a, 4a)
The excitation signal line (5) comprises first and second excitation signal lines (5a, 5b) connected in parallel to the excitation power source (6).
The sin θ and cos θ signals synthesized from the two-phase output signals of 120 ° phase difference among the three phases of the first to third output signal lines (2, 3, 4) are constant at sin 2 θ + cos 2 θ = K, When K becomes 1/4 K, it is determined that one of the first and second excitation signal lines (5a, 5b) is broken, and the first to third sync signals (2a, 5b) are determined . 3a, 4a) The output voltage of the first and second excitation signal lines (5a, 5b) is half that of the normal time when the disconnection is not broken, so that the disconnection can be detected and the redundancy can be maintained. Redundant VR synchro disconnection detecting device characterized.
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