JPH0914150A - Control system for inverter-driven pump - Google Patents
Control system for inverter-driven pumpInfo
- Publication number
- JPH0914150A JPH0914150A JP7183417A JP18341795A JPH0914150A JP H0914150 A JPH0914150 A JP H0914150A JP 7183417 A JP7183417 A JP 7183417A JP 18341795 A JP18341795 A JP 18341795A JP H0914150 A JPH0914150 A JP H0914150A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- power line
- carrier signal
- driven pump
- signal
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、商用交流電源（以下、
商用電源）に電力線を介して接続されたインバータによ
って駆動されるポンプの制御システムに係り、特に電力
線搬送によって運転状態を遠隔監視制御することができ
るインバータ駆動ポンプの制御システムに関するもので
ある。BACKGROUND OF THE INVENTION The present invention relates to a commercial AC power supply (hereinafter,
The present invention relates to a control system for a pump driven by an inverter connected to a commercial power source) via a power line, and more particularly to a control system for an inverter-driven pump capable of remotely monitoring and controlling an operating state by carrying an electric power line.
【０００２】[0002]
【従来の技術】商用電源の周波数を電力損失が少なく所
望の周波数及び電圧に変換できるインバータは、誘導モ
ータなどを円滑に回転数制御可能なことから、ポンプ、
ファン、又はコンプレッサなどの回転機械の省エネルギ
ー機器等として広く利用されている。係るインバータ駆
動のポンプ等においても、ポンプの設置場所とこの監視
制御場所が離隔している場合が多い。このような場合に
監視及び運転制御のための信号を別途の専用配線を設け
るのでなく、電力線を利用して信号の伝送を行うことが
試みられている。2. Description of the Related Art An inverter capable of converting a frequency of a commercial power source into a desired frequency and voltage with little power loss is capable of smoothly controlling the rotational speed of an induction motor or the like.
It is widely used as an energy-saving device for rotating machines such as fans or compressors. Even in such an inverter-driven pump or the like, the installation location of the pump and the monitoring control location are often separated from each other. In such a case, it has been attempted to transmit a signal by using a power line, instead of providing a separate dedicated wiring for a signal for monitoring and operation control.
【０００３】しかるに、電力線搬送により信号搬送波を
電力線に重畳して搬送する場合、外部から電力線にノイ
ズが混入すると、搬送波信号とノイズの弁別が困難にな
り、搬送波信号を正確に授受することが困難になる。However, when a signal carrier is carried on the power line by carrying the power line, if noise is mixed into the power line from the outside, it becomes difficult to distinguish the carrier signal from the noise, and it is difficult to accurately transfer the carrier signal. become.
【０００４】そこで、例えば特開平３−９１３２７号公
報によれば、電力線に搬送する搬送波とノイズを容易に
判別するために、電力線上の商用周波電圧の位相に同期
してデータを搬送すべき周期を設定し、部分搬送周期ご
とに分離した搬送波を利用することが検討されている。Therefore, for example, according to Japanese Patent Laid-Open No. 3-91327, in order to easily discriminate between a carrier wave and a noise carried on the power line, a cycle in which data should be carried in synchronization with the phase of the commercial frequency voltage on the power line. Is set, and it is considered to use a carrier wave separated for each partial carrier cycle.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、係る従
来技術によれば、商用周波数の電圧位相と同期させて高
周波の搬送波を電力線に重畳搬送させるので、商用電源
に外乱ノイズが混入した場合やノイズを発生しがちなイ
ンバータ駆動ポンプを電力線の負荷に用いる場合には、
同期タイミングの設定が困難となり、電力線搬送による
通信が不能に陥りやすいという問題点があった。However, according to the related art, since the high frequency carrier wave is superposed and carried on the power line in synchronization with the voltage phase of the commercial frequency, when the disturbance noise is mixed into the commercial power source or the noise is generated. When using an inverter-driven pump that tends to occur as a load on the power line,
There is a problem that it becomes difficult to set the synchronization timing and communication by power line carrier is easily disabled.
【０００６】本発明は上述の事情に鑑み為されたもの
で、簡単な構成によりインバータ駆動ポンプの各種制御
信号を電力線を用いて安定に搬送することができるイン
バータ駆動ポンプの制御システムを提供することを目的
とする。The present invention has been made in view of the above circumstances, and provides a control system for an inverter-driven pump that can stably convey various control signals for the inverter-driven pump using a power line with a simple configuration. With the goal.
【０００７】[0007]
【課題を解決するための手段】上述した目的を達成する
ために、本発明のインバータ駆動ポンプの制御システム
は、商用交流電源に電力線を介して接続されたインバー
タによって駆動されるインバータ駆動ポンプと、該イン
バータ駆動ポンプの運転状態に基づいた搬送信号を生成
して電力線に重畳する搬送信号結合手段と、前記電力線
に結合して前記搬送信号を受信する結合手段とを備え、
前記搬送信号は、前記インバータのクロックパルスに基
づいて生成されたパルス信号であることを特徴とするも
のである。In order to achieve the above-mentioned object, a control system for an inverter driven pump according to the present invention comprises an inverter driven pump driven by an inverter connected to a commercial AC power source via a power line, Carrier signal coupling means for generating a carrier signal based on an operating state of the inverter-driven pump and superimposing it on a power line, and coupling means for coupling the power signal to the power line and receiving the carrier signal,
The carrier signal is a pulse signal generated based on a clock pulse of the inverter.
【０００８】また、本発明のインバータ駆動ポンプの制
御システムは、前記パルス信号は、前記クロックパルス
及び該クロックパルスが分周されて形成されたパルスに
基づいて生成されたものであることを特徴とするもので
ある。Further, in the control system for the inverter-driven pump of the present invention, the pulse signal is generated based on the clock pulse and a pulse formed by dividing the clock pulse. To do.
【０００９】また、本発明のインバータ駆動ポンプの制
御システムは、商用交流電源に電力線を介して接続され
たインバータによって駆動されるインバータ駆動ポンプ
と、該インバータ駆動ポンプの運転状態に基づいた搬送
信号を生成して電力線に重畳する搬送信号結合手段と、
前記電力線に結合して前記搬送信号を受信する結合手段
とを備え、前記搬送信号は、前記インバータのＰＷＭ信
号に基づいて生成されたパルス信号であることを特徴と
するものである。Further, the control system for an inverter-driven pump of the present invention sends an inverter-driven pump driven by an inverter connected to a commercial AC power source via a power line, and a carrier signal based on the operating state of the inverter-driven pump. Carrier signal combining means for generating and superimposing on a power line,
Coupling means for receiving the carrier signal in combination with the power line, wherein the carrier signal is a pulse signal generated based on the PWM signal of the inverter.
【００１０】[0010]
【作用】前述した構成からなる本発明によれば、搬送信
号結合手段から生成される搬送信号は、インバータのク
ロックパルスに基づいて生成されるパルス信号であるこ
とから、受信側においてインバータ駆動ポンプでクロッ
クパルスが出ているか否かを検知することができる。ま
た、搬送信号がクロックパルスであることから、電力線
に存在している高調波ノイズの影響を受け難く、安定に
電力線搬送を行うことができる。According to the present invention having the above-mentioned structure, since the carrier signal generated by the carrier signal combining means is a pulse signal generated based on the clock pulse of the inverter, the inverter driving pump is used on the receiving side. It is possible to detect whether or not a clock pulse is output. Further, since the carrier signal is a clock pulse, it is less likely to be affected by the harmonic noise existing in the power line, and the power line can be stably carried.
【００１１】又、搬送信号はインバータのクロックパル
スが分周されて形成されたパルスが、制御信号によって
変調されて形成されたものであるから、各種の制御信号
を簡単に多重伝送することができる。この搬送パルス信
号は、インバータのクロックパルスの整数倍の分周信号
であることから、同様に高調波ノイズの影響を受け難
く、安定に電力線搬送することができる。Further, since the carrier signal is a pulse formed by dividing the clock pulse of the inverter and modulated by the control signal, various control signals can be easily multiplexed. . Since this carrier pulse signal is a frequency-divided signal that is an integral multiple of the clock pulse of the inverter, it is also unlikely to be affected by harmonic noise, and power line carrier can be carried out stably.
【００１２】又、搬送信号はインバータのＰＷＭ信号に
基づいて生成されたパルス信号であることから、受信側
においてインバータの動作周波数、動作電圧等の動作状
態を直接検出することができる。この搬送信号もインバ
ータの出力信号そのものであるので、信号の形成が極め
て容易であり、且つ電力線に存在している高調波ノイズ
の影響を受け難い。Further, since the carrier signal is a pulse signal generated based on the PWM signal of the inverter, the operating state such as the operating frequency and the operating voltage of the inverter can be directly detected on the receiving side. Since this carrier signal is also the output signal of the inverter itself, it is extremely easy to form the signal and is less likely to be affected by the harmonic noise existing in the power line.
【００１３】[0013]
【実施例】以下、本発明に係わる実施例について図面を
参照して説明する。なお、以下の実施例の説明では、同
一要素には同一符号を付し、その重複した説明を省略す
る。Embodiments of the present invention will be described below with reference to the drawings. In the following description of the embodiments, the same elements will be denoted by the same reference symbols, without redundant description.
【００１４】図１は、本発明のインバータ駆動ポンプの
実施例の構成を示すブロック図である。本実施例のイン
バータ駆動ポンプの制御システムは、商用交流電源１に
接続された電力線２と、電力線２に負荷として接続され
たインバータ駆動ポンプ３とを備え、インバータ駆動ポ
ンプ３には、商用電源電圧及び周波数を任意の電圧及び
周波数に変換するインバータ３１と、インバータ３１に
より駆動される誘導電動機等のモータを備えたポンプ３
２が含まれている。そして、インバータ駆動ポンプ３に
は、電力線２に結合する搬送信号結合手段４が接続され
ている。FIG. 1 is a block diagram showing the configuration of an embodiment of an inverter drive pump of the present invention. The control system for an inverter-driven pump of this embodiment includes a power line 2 connected to a commercial AC power source 1 and an inverter-driven pump 3 connected as a load to the power line 2, and the inverter-driven pump 3 has a commercial power supply voltage. And an inverter 31 for converting the frequency to an arbitrary voltage and frequency, and a pump 3 including a motor such as an induction motor driven by the inverter 31.
2 is included. The inverter drive pump 3 is connected to the carrier signal coupling means 4 coupled to the power line 2.
【００１５】さらに、電源１と電力線２の間には、電力
線２に結合する搬送信号を分離して取出す結合手段５が
設けられている。搬送信号結合手段５で受信された搬送
信号は、運転監視制御手段６に入力され、復調されてイ
ンバータ駆動ポンプ３の各種の運転状態を示す信号が取
出される。また、監視制御手段６側から結合手段５を介
してインバータ駆動ポンプ３の運転を制御する搬送信号
を送信して、結合手段４によりこれを受信してポンプ３
２の起動・停止又は運転速度等の制御をすることもでき
る。また、インバータ駆動ポンプ３の制御部、搬送信号
結合手段４、受信手段５は、商用電源１に電気的に接続
されており、それぞれ電源が供給されている。Further, between the power source 1 and the power line 2, a coupling means 5 for separating and extracting the carrier signal coupled to the power line 2 is provided. The carrier signal received by the carrier signal combining unit 5 is input to the operation monitoring control unit 6 and demodulated to extract signals indicating various operating states of the inverter-driven pump 3. Further, a carrier signal for controlling the operation of the inverter-driven pump 3 is transmitted from the monitoring control means 6 side through the coupling means 5, and the coupling means 4 receives the carrier signal to receive the carrier signal.
It is also possible to control the start / stop of item 2 or the operating speed. The control unit of the inverter-driven pump 3, the carrier signal coupling unit 4, and the receiving unit 5 are electrically connected to the commercial power source 1 and are supplied with power.
【００１６】以上のように構成されるインバータ駆動ポ
ンプ３は、電力線２経由で商用交流電源１から商用電力
の供給を受け、インバータ３１は、インバータ３１の内
部でクロックパルスを発生し、クロックパルスに基づい
たＰＷＭ（パルス幅変調）信号を生成する。ＰＷＭ信号
により所望の周波数と電圧値の交流電力をポンプ３２に
内蔵された誘導モータ等のモータに供給し、ポンプ３２
の回転数やトルクなどの運転状態を制御する。The inverter drive pump 3 configured as described above is supplied with commercial power from the commercial AC power supply 1 via the power line 2, and the inverter 31 generates a clock pulse inside the inverter 31 and converts it into a clock pulse. Generate a PWM (Pulse Width Modulation) signal based on. By the PWM signal, AC power having a desired frequency and voltage value is supplied to a motor such as an induction motor built in the pump 32.
Controls operating conditions such as the number of revolutions and torque.
【００１７】このとき、上記クロックパルスは、商用電
力の供給をインバータ３１が受けて発生し、インバータ
３１やポンプ３２の運転状態が異常な場合にもクロック
パルスは停止しない。そして、商用電力の供給が遮断し
た場合にはクロックパルスも停止する。また、インバー
タ駆動ポンプの運転状態に異常が検出された場合には、
クロックパルスを停止することなく、異常信号によりＰ
ＷＭ制御による交流電力の出力のみが停止する。At this time, the clock pulse is generated when the inverter 31 receives the commercial power supply, and the clock pulse does not stop even when the operating state of the inverter 31 or the pump 32 is abnormal. When the supply of commercial power is cut off, the clock pulse also stops. If an abnormality is detected in the operating condition of the inverter-driven pump,
P on the abnormal signal without stopping the clock pulse
Only the output of AC power by the WM control is stopped.
【００１８】そして、上記の実施例の構成によれば、商
用交流電源１の商用電力は電力線２経由でインバータ駆
動ポンプ３に供給され、インバータ３１は内部でクロッ
クパルスを発生し、ポンプ３２をＰＷＭ（パルス幅変
調）制御する。インバータ３１のクロックパルスＣは、
搬送信号結合手段４に入力されて搬送信号Ｐとして電力
線２に重畳される。更にクロックパルスＣは、搬送信号
結合手段４で所望周波数に分周され、ポンプの運転状態
Ｓ1，Ｓ2，…Ｓnの信号で変調された搬送信号Ｐとして
電力線２に結合重畳される。搬送信号Ｐは電力線２上を
伝播して結合手段５により電力線２から分離検出されて
監視制御手段６に入力される。Further, according to the configuration of the above embodiment, the commercial power of the commercial AC power supply 1 is supplied to the inverter driving pump 3 via the power line 2, the inverter 31 internally generates a clock pulse, and the pump 32 PWM. (Pulse width modulation) control. The clock pulse C of the inverter 31 is
It is input to the carrier signal combining means 4 and is superimposed on the power line 2 as the carrier signal P. Further, the clock pulse C is frequency-divided by the carrier signal combining means 4 into a desired frequency and is combined and superposed on the power line 2 as the carrier signal P modulated by the signals of the pump operating states S1, S2, ... Sn. The carrier signal P propagates on the power line 2, is separated and detected from the power line 2 by the coupling means 5, and is input to the monitor control means 6.
【００１９】このとき、搬送信号Ｐにおけるクロックパ
ルスＣの有無はインバータ３１への商用電力の供給の有
無に対応するので、インバータ３１のクロックパルスに
基づいた搬送信号は、インバータ駆動ポンプ３自体の商
用電力の供給の有無に関する情報に相当する。また、結
合手段５経由で監視制御手段６によりクロックパルスが
分周された各種の周波数のパルスが重畳した搬送信号Ｐ
を受信することにより、インバータ駆動ポンプ３の運転
状態Ｓ1，Ｓ2，…Ｓnを監視制御手段６で検出して復調
することができる。At this time, since the presence / absence of the clock pulse C in the carrier signal P corresponds to the presence / absence of the commercial power supply to the inverter 31, the carrier signal based on the clock pulse of the inverter 31 is commercialized by the inverter driving pump 3 itself. It corresponds to information about whether or not electric power is supplied. Further, the carrier signal P on which the pulses of various frequencies obtained by dividing the clock pulse by the monitor control means 6 via the coupling means 5 are superimposed.
By receiving the, the operating states S1, S2, ... Sn of the inverter drive pump 3 can be detected and demodulated by the monitoring control means 6.
【００２０】なお、図１において破線Ｌで示したよう
に、インバータ駆動ポンプ３から、クロックパルスＣと
ともに、インバータ駆動ポンプ３の運転状態に関する信
号Ｓ1，Ｓ2，…Ｓnが結合手段４に入力される。信号Ｓ
1，Ｓ2，…Ｓnとしては、モータの電圧、電流、ポンプ
の回転速度等の基本的な情報の他に水位の過不足、軸受
の損耗、巻線の温度上昇、浸水の有無、欠相、逆相、漏
電などの異常状態信号も含まれる。As shown by a broken line L in FIG. 1, the inverter driving pump 3 inputs signals S1, S2, ... Sn related to the operating state of the inverter driving pump 3 to the coupling means 4 together with the clock pulse C. . Signal S
1, S2, ... Sn include basic information such as motor voltage, current, and pump rotation speed, as well as excess or deficiency of water level, wear of bearings, temperature rise of windings, presence or absence of water immersion, open phase, Abnormal state signals such as reverse phase and leakage are also included.
【００２１】図２は、搬送信号結合手段４の要部の回路
構成の一具体例を示す回路図であり、クロックパルスＣ
が供給される分周回路４１と、分周されたクロックパル
スｆ1，ｆ2，…ｆnと上記運転状態信号Ｓ1，Ｓ2，…Ｓn
が入力部に接続されるゲート４２1，４２2，…４２
nと、これらのゲート出力に接続する結合回路４３とに
より構成されている。インバータ駆動ポンプ３の運転状
態を示す信号Ｓ1，Ｓ2，…ＳnとクロックパルスＣの分
周信号に基づいて生成された一連の変調信号群である搬
送信号Ｐが結合手段４から電力線に多重重畳される。FIG. 2 is a circuit diagram showing a specific example of the circuit configuration of the essential part of the carrier signal coupling means 4, in which the clock pulse C is used.
, Fn, and the operating state signals S1, S2, ... Sn, which are frequency-divided clock pulses f1, f2, ... Fn.
42 connected to the input section 42 1 , 42 2 , ... 42
n and a coupling circuit 43 connected to these gate outputs. The carrier signal P, which is a series of modulated signal groups generated based on the signals S1, S2, ... Sn indicating the operating state of the inverter-driven pump 3 and the frequency-divided signal of the clock pulse C, is superimposed on the power line from the coupling means 4. It
【００２２】搬送信号を受信する結合手段５では、図２
に示す回路とは逆の手順により受信クロックパルスか
ら、各種分周周波数のクロックパルスを形成し、ゲート
回路により復調して、状態信号Ｓ1，Ｓ2，…Ｓnを取出
し、監視制御手段６に入力する。In the coupling means 5 for receiving the carrier signal, FIG.
Clock pulses of various frequency divisions are formed from the received clock pulse by a procedure reverse to that of the circuit shown in FIG. 1, demodulated by the gate circuit, state signals S1, S2, ... Sn are taken out and input to the monitoring control means 6. .
【００２３】上記実施例の構成によれば、インバータ駆
動ポンプ３に商用電力が供給されているか否かは、クロ
ックパルスＣの有無により結合手段５経由で監視制御手
段６により検出することができる。さらに、インバータ
駆動ポンプ３に電力が供給されているときには、インバ
ータ駆動ポンプの運転状態に関する変数の種類に応じて
クロックパルスＣを多重に分周することにより、運転状
態信号Ｓ1，Ｓ2，…Ｓnに基づいて、夫々の分周周波数
での搬送信号Ｐを受信して復調することにより、周波数
ｆ1，ｆ2，…ｆnに対応した運転状態Ｓ1，Ｓ2，…Ｓnを
特定してインバータ駆動ポンプ３の運転状態を検出する
ことができる。According to the configuration of the above embodiment, whether the commercial power is supplied to the inverter drive pump 3 can be detected by the monitor control means 6 via the coupling means 5 depending on the presence or absence of the clock pulse C. Further, when electric power is supplied to the inverter-driven pump 3, the clock pulse C is frequency-divided according to the type of variable relating to the operating state of the inverter-driven pump, so that the operating state signals S1, S2, ... Based on this, the carrier signals P at the respective divided frequencies are received and demodulated to specify the operating states S1, S2, ... Sn corresponding to the frequencies f1, f2 ,. The state can be detected.
【００２４】なお、上記実施例の構成では、インバータ
駆動ポンプ３のインバータ３１からのクロックパルスＣ
に基づいて、状態信号Ｓ1，Ｓ2，…Ｓnで変調された搬
送信号Ｐが搬送信号結合手段４から供給されるとした
が、これに限られるものではない。例えば、インバータ
３１からＰＷＭ信号を搬送信号結合手段４に供給するよ
うにすることもできる。In the configuration of the above embodiment, the clock pulse C from the inverter 31 of the inverter drive pump 3 is used.
Based on the above, the carrier signal P modulated by the status signals S1, S2, ... Sn is supplied from the carrier signal combining means 4, but the present invention is not limited to this. For example, the PWM signal may be supplied from the inverter 31 to the carrier signal combining means 4.
【００２５】これによれば、ＰＷＭ信号には、ポンプの
回転速度及び供給電圧の他にインバータ３１の負荷状態
やモーターの回転数に応じた多様な運転状態に関する情
報が含まれる。従って、ＰＷＭ信号に基づいて搬送信号
結合手段４が生成する搬送信号にも、これらの運転状態
情報が含まれ、結果として、インバータ駆動ポンプ３の
運転状態に対応した情報を監視制御手段６に電力線搬送
することができる。According to this, in addition to the rotational speed and supply voltage of the pump, the PWM signal includes information on various operating states according to the load state of the inverter 31 and the rotation speed of the motor. Therefore, the carrier signal generated by the carrier signal combining unit 4 based on the PWM signal also includes these operating state information, and as a result, information corresponding to the operating state of the inverter-driven pump 3 is sent to the monitoring control unit 6 through the power line. Can be transported.
【００２６】特に、水中ポンプや屋上冷却塔などでは、
インバータ駆動ポンプが電源から遠く離れて配置されて
いるので、電源から離隔したインバータ駆動ポンプを電
力線搬送により運転監視あるいは制御する場合には、高
調波ノイズによる誤動作が思わぬ事故につながる。本発
明では上述したように搬送信号としてインバータのクロ
ックパルス、及びその分周周波数、又はＰＷＭ信号に基
づいたパルス信号を用いているので、電力線上に存在す
る高調波ノイズの影響を受け難い。従って、インバータ
等のパワーエレクトロニクス機器が接続された電力線を
用いて安定に離隔した監視制御所にインバータ駆動ポン
プの運転状態を伝達でき、従って本発明は、安全対策上
からも極めて有用である。Especially in submersible pumps and rooftop cooling towers,
Since the inverter-driven pump is arranged far away from the power supply, when operating or monitoring the inverter-driven pump separated from the power supply by power line transportation, malfunction due to harmonic noise may lead to an unexpected accident. According to the present invention, as described above, the clock pulse of the inverter and the pulse frequency based on the frequency division frequency or the PWM signal are used as the carrier signal, so that it is less susceptible to the harmonic noise existing on the power line. Therefore, the operating state of the inverter-driven pump can be transmitted to the monitoring control station which is stably separated by using the power line to which the power electronics device such as the inverter is connected. Therefore, the present invention is extremely useful in terms of safety measures.
【００２７】尚、上述した実施例はインバータ駆動のポ
ンプの例について説明したが、ポンプのみならずファ
ン、コンプレッサ、又は送風機等の各種インバータ駆動
の流体機械に広く本発明の趣旨が適用できるのは勿論の
ことである。Although the above-described embodiments have been described with reference to the example of the inverter-driven pump, the purpose of the present invention can be widely applied not only to the pump but also to various inverter-driven fluid machines such as fans, compressors, and blowers. Of course.
【００２８】[0028]
【発明の効果】以上に説明したように、本発明のインバ
ータ駆動ポンプの制御システムによれば、インバータの
クロック周波数、又はその分周周波数、又はＰＷＭ信号
に基づいたインバータ駆動ポンプの運転状態信号を、電
力線搬送により離隔した監視制御手段に送るようにした
ものである。従って、簡素な構成によりインバータ駆動
ポンプの運転状態をインバータ駆動ポンプから離隔した
監視制御装置に送ることができる。このようにインバー
タのクロックパルス等に基づいた搬送信号結合手段を設
けたので、インバータ駆動ポンプを電力線に負荷として
接続する場合にも、商用交流電源のノイズやインバータ
のクロックパルス周波数の変化にかかわらず、インバー
タ駆動ポンプの運転状態を確実に電力線搬送により送受
信して監視制御できるという優れた効果を奏する。As described above, according to the control system of the inverter-driven pump of the present invention, the operating state signal of the inverter-driven pump based on the clock frequency of the inverter, its frequency division frequency, or the PWM signal is transmitted. The power is transmitted to the monitoring control means which is separated from the power line carrier. Therefore, it is possible to send the operating state of the inverter-driven pump to the monitoring control device separated from the inverter-driven pump with a simple configuration. Since the carrier signal coupling means based on the clock pulse of the inverter is provided in this way, even when the inverter drive pump is connected to the power line as a load, regardless of the noise of the commercial AC power supply or the change of the clock pulse frequency of the inverter. The excellent effect that the operating state of the inverter-driven pump can be reliably transmitted / received by power line transfer and monitored and controlled.
【図１】本発明のインバータ駆動ポンプの一実施例の構
成を示すブロック図である。FIG. 1 is a block diagram showing the configuration of an embodiment of an inverter-driven pump of the present invention.
【図２】本発明の搬送信号結合手段の要部の構成を示す
回路図である。FIG. 2 is a circuit diagram showing a configuration of a main part of carrier signal combining means of the present invention.
１ 商用交流電源 ２ 電力線 ３ インバータ駆動ポンプ ４，５ 搬送信号結合手段 ６ 監視制御手段 ３１ インバータ ３２ ポンプ Ｃ クロックパルス Ｐ 搬送信号 1 Commercial AC Power Supply 2 Power Line 3 Inverter Drive Pump 4, 5 Carrier Signal Coupling Means 6 Monitoring and Control Means 31 Inverter 32 Pump C Clock Pulse P Carrier Signal
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０４Ｑ 9/00 ３１１ Ｈ０４Ｑ 9/00 ３１１Ｓ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location H04Q 9/00 311 H04Q 9/00 311S
Claims (3)
たインバータによって駆動されるインバータ駆動ポンプ
と、 該インバータ駆動ポンプの運転状態に基づいた搬送信号
を生成して電力線に重畳する搬送信号結合手段と、 前記電力線に結合して前記搬送信号を受信する結合手段
とを備え、 前記搬送信号は、前記インバータのクロックパルスに基
づいて生成されたパルス信号であることを特徴とするイ
ンバータ駆動ポンプの制御システム。1. An inverter-driven pump driven by an inverter connected to a commercial AC power source via a power line, and a carrier signal coupling means for generating a carrier signal based on an operating state of the inverter-driven pump and superimposing the carrier signal on the power line. And a coupling means for receiving the carrier signal by coupling to the power line, wherein the carrier signal is a pulse signal generated based on a clock pulse of the inverter. system.
及び該クロックパルスが分周されて形成されたパルスに
基づいて生成されたものであることを特徴とする請求項
１記載のインバータ駆動ポンプの制御システム。2. The control of an inverter driven pump according to claim 1, wherein the pulse signal is generated based on the clock pulse and a pulse formed by dividing the clock pulse. system.
たインバータによって駆動されるインバータ駆動ポンプ
と、 該インバータ駆動ポンプの運転状態に基づいた搬送信号
を生成して電力線に重畳する搬送信号結合手段と、 前記電力線に結合して前記搬送信号を受信する結合手段
とを備え、 前記搬送信号は、前記インバータのＰＷＭ信号に基づい
て生成されたパルス信号であることを特徴とするインバ
ータ駆動ポンプの制御システム。3. An inverter-driven pump driven by an inverter connected to a commercial AC power source via a power line, and a carrier signal coupling means for generating a carrier signal based on an operating state of the inverter-driven pump and superimposing the carrier signal on the power line. And a coupling means for coupling the power line to receive the carrier signal, wherein the carrier signal is a pulse signal generated based on a PWM signal of the inverter. system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18341795A JP3637982B2 (en) | 1995-06-27 | 1995-06-27 | Inverter-driven pump control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18341795A JP3637982B2 (en) | 1995-06-27 | 1995-06-27 | Inverter-driven pump control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0914150A true JPH0914150A (en) | 1997-01-14 |
| JP3637982B2 JP3637982B2 (en) | 2005-04-13 |
Family
ID=16135420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18341795A Expired - Fee Related JP3637982B2 (en) | 1995-06-27 | 1995-06-27 | Inverter-driven pump control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3637982B2 (en) |
Cited By (66)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005171880A (en) * | 2003-12-11 | 2005-06-30 | Shin Meiwa Ind Co Ltd | Submerged pump system |
| US7518558B2 (en) | 2006-04-14 | 2009-04-14 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US7519328B2 (en) | 2006-01-19 | 2009-04-14 | Murata Manufacturing Co., Ltd. | Wireless IC device and component for wireless IC device |
| US7762472B2 (en) | 2007-07-04 | 2010-07-27 | Murata Manufacturing Co., Ltd | Wireless IC device |
| US7786949B2 (en) | 2006-04-14 | 2010-08-31 | Murata Manufacturing Co., Ltd. | Antenna |
| US7830311B2 (en) | 2007-07-18 | 2010-11-09 | Murata Manufacturing Co., Ltd. | Wireless IC device and electronic device |
| US7871008B2 (en) | 2008-06-25 | 2011-01-18 | Murata Manufacturing Co., Ltd. | Wireless IC device and manufacturing method thereof |
| US7932730B2 (en) | 2006-06-12 | 2011-04-26 | Murata Manufacturing Co., Ltd. | System for inspecting electromagnetic coupling modules and radio IC devices and method for manufacturing electromagnetic coupling modules and radio IC devices using the system |
| US7990337B2 (en) | 2007-12-20 | 2011-08-02 | Murata Manufacturing Co., Ltd. | Radio frequency IC device |
| US8009101B2 (en) | 2007-04-06 | 2011-08-30 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8031124B2 (en) | 2007-01-26 | 2011-10-04 | Murata Manufacturing Co., Ltd. | Container with electromagnetic coupling module |
| US8081541B2 (en) | 2006-06-30 | 2011-12-20 | Murata Manufacturing Co., Ltd. | Optical disc |
| US8081119B2 (en) | 2006-04-26 | 2011-12-20 | Murata Manufacturing Co., Ltd. | Product including power supply circuit board |
| US8081125B2 (en) | 2006-07-11 | 2011-12-20 | Murata Manufacturing Co., Ltd. | Antenna and radio IC device |
| US8193939B2 (en) | 2007-07-09 | 2012-06-05 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8228075B2 (en) | 2006-08-24 | 2012-07-24 | Murata Manufacturing Co., Ltd. | Test system for radio frequency IC devices and method of manufacturing radio frequency IC devices using the same |
| US8228252B2 (en) | 2006-05-26 | 2012-07-24 | Murata Manufacturing Co., Ltd. | Data coupler |
| US8235299B2 (en) | 2007-07-04 | 2012-08-07 | Murata Manufacturing Co., Ltd. | Wireless IC device and component for wireless IC device |
| US8384547B2 (en) | 2006-04-10 | 2013-02-26 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8544754B2 (en) | 2006-06-01 | 2013-10-01 | Murata Manufacturing Co., Ltd. | Wireless IC device and wireless IC device composite component |
| US8692718B2 (en) | 2008-11-17 | 2014-04-08 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US8690070B2 (en) | 2009-04-14 | 2014-04-08 | Murata Manufacturing Co., Ltd. | Wireless IC device component and wireless IC device |
| US8755210B2 (en) | 2007-06-06 | 2014-06-17 | Abb Oy | Method for controlling frequency converter unit, and frequency converter assembly |
| US8847831B2 (en) | 2009-07-03 | 2014-09-30 | Murata Manufacturing Co., Ltd. | Antenna and antenna module |
| US8853549B2 (en) | 2009-09-30 | 2014-10-07 | Murata Manufacturing Co., Ltd. | Circuit substrate and method of manufacturing same |
| US8870077B2 (en) | 2008-08-19 | 2014-10-28 | Murata Manufacturing Co., Ltd. | Wireless IC device and method for manufacturing same |
| US8878739B2 (en) | 2011-07-14 | 2014-11-04 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US8905296B2 (en) | 2011-12-01 | 2014-12-09 | Murata Manufacturing Co., Ltd. | Wireless integrated circuit device and method of manufacturing the same |
| US8905316B2 (en) | 2010-05-14 | 2014-12-09 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8915448B2 (en) | 2007-12-26 | 2014-12-23 | Murata Manufacturing Co., Ltd. | Antenna device and radio frequency IC device |
| US8937576B2 (en) | 2011-04-05 | 2015-01-20 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US8944335B2 (en) | 2010-09-30 | 2015-02-03 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8960561B2 (en) | 2011-02-28 | 2015-02-24 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US8960557B2 (en) | 2008-05-21 | 2015-02-24 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8976075B2 (en) | 2009-04-21 | 2015-03-10 | Murata Manufacturing Co., Ltd. | Antenna device and method of setting resonant frequency of antenna device |
| US8981906B2 (en) | 2010-08-10 | 2015-03-17 | Murata Manufacturing Co., Ltd. | Printed wiring board and wireless communication system |
| US8991713B2 (en) | 2011-01-14 | 2015-03-31 | Murata Manufacturing Co., Ltd. | RFID chip package and RFID tag |
| US8994605B2 (en) | 2009-10-02 | 2015-03-31 | Murata Manufacturing Co., Ltd. | Wireless IC device and electromagnetic coupling module |
| US9024725B2 (en) | 2009-11-04 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Communication terminal and information processing system |
| US9024837B2 (en) | 2010-03-31 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Antenna and wireless communication device |
| US9064198B2 (en) | 2006-04-26 | 2015-06-23 | Murata Manufacturing Co., Ltd. | Electromagnetic-coupling-module-attached article |
| US9077067B2 (en) | 2008-07-04 | 2015-07-07 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US9104950B2 (en) | 2009-01-30 | 2015-08-11 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US9123996B2 (en) | 2010-05-14 | 2015-09-01 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9166291B2 (en) | 2010-10-12 | 2015-10-20 | Murata Manufacturing Co., Ltd. | Antenna device and communication terminal apparatus |
| US9178279B2 (en) | 2009-11-04 | 2015-11-03 | Murata Manufacturing Co., Ltd. | Wireless IC tag, reader-writer, and information processing system |
| JP2015209817A (en) * | 2014-04-25 | 2015-11-24 | 株式会社川本製作所 | Liquid supply device |
| US9231305B2 (en) | 2008-10-24 | 2016-01-05 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9236651B2 (en) | 2010-10-21 | 2016-01-12 | Murata Manufacturing Co., Ltd. | Communication terminal device |
| JP2016028822A (en) * | 2014-07-25 | 2016-03-03 | 株式会社ダイヘン | Power supply device, processing device including the same, welding device, and processing system |
| US9281873B2 (en) | 2008-05-26 | 2016-03-08 | Murata Manufacturing Co., Ltd. | Wireless IC device system and method of determining authenticity of wireless IC device |
| US9378452B2 (en) | 2011-05-16 | 2016-06-28 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US9444143B2 (en) | 2009-10-16 | 2016-09-13 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US9461363B2 (en) | 2009-11-04 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Communication terminal and information processing system |
| US9460320B2 (en) | 2009-10-27 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Transceiver and radio frequency identification tag reader |
| US9460376B2 (en) | 2007-07-18 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US9543642B2 (en) | 2011-09-09 | 2017-01-10 | Murata Manufacturing Co., Ltd. | Antenna device and wireless device |
| US9558384B2 (en) | 2010-07-28 | 2017-01-31 | Murata Manufacturing Co., Ltd. | Antenna apparatus and communication terminal instrument |
| JP2017073861A (en) * | 2015-10-06 | 2017-04-13 | 株式会社カワデン | Drive control system |
| US9692128B2 (en) | 2012-02-24 | 2017-06-27 | Murata Manufacturing Co., Ltd. | Antenna device and wireless communication device |
| US9727765B2 (en) | 2010-03-24 | 2017-08-08 | Murata Manufacturing Co., Ltd. | RFID system including a reader/writer and RFID tag |
| US9761923B2 (en) | 2011-01-05 | 2017-09-12 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US10013650B2 (en) | 2010-03-03 | 2018-07-03 | Murata Manufacturing Co., Ltd. | Wireless communication module and wireless communication device |
| US10235544B2 (en) | 2012-04-13 | 2019-03-19 | Murata Manufacturing Co., Ltd. | Inspection method and inspection device for RFID tag |
| KR102126060B1 (en) * | 2019-01-28 | 2020-06-24 | 국제발전기콤푸레샤(주) | Electronic circuit of inverter controller for 55kW dedicated controller |
| JP2020145804A (en) * | 2019-03-05 | 2020-09-10 | 株式会社荏原製作所 | Motor assembly and water supply device |
-
1995
- 1995-06-27 JP JP18341795A patent/JP3637982B2/en not_active Expired - Fee Related
Cited By (78)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4503277B2 (en) * | 2003-12-11 | 2010-07-14 | 新明和工業株式会社 | Submersible pump device |
| JP2005171880A (en) * | 2003-12-11 | 2005-06-30 | Shin Meiwa Ind Co Ltd | Submerged pump system |
| US7519328B2 (en) | 2006-01-19 | 2009-04-14 | Murata Manufacturing Co., Ltd. | Wireless IC device and component for wireless IC device |
| US7764928B2 (en) | 2006-01-19 | 2010-07-27 | Murata Manufacturing Co., Ltd. | Wireless IC device and component for wireless IC device |
| US8384547B2 (en) | 2006-04-10 | 2013-02-26 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US7518558B2 (en) | 2006-04-14 | 2009-04-14 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US7786949B2 (en) | 2006-04-14 | 2010-08-31 | Murata Manufacturing Co., Ltd. | Antenna |
| US8081119B2 (en) | 2006-04-26 | 2011-12-20 | Murata Manufacturing Co., Ltd. | Product including power supply circuit board |
| US9064198B2 (en) | 2006-04-26 | 2015-06-23 | Murata Manufacturing Co., Ltd. | Electromagnetic-coupling-module-attached article |
| US9165239B2 (en) | 2006-04-26 | 2015-10-20 | Murata Manufacturing Co., Ltd. | Electromagnetic-coupling-module-attached article |
| US8228252B2 (en) | 2006-05-26 | 2012-07-24 | Murata Manufacturing Co., Ltd. | Data coupler |
| US8544754B2 (en) | 2006-06-01 | 2013-10-01 | Murata Manufacturing Co., Ltd. | Wireless IC device and wireless IC device composite component |
| US7932730B2 (en) | 2006-06-12 | 2011-04-26 | Murata Manufacturing Co., Ltd. | System for inspecting electromagnetic coupling modules and radio IC devices and method for manufacturing electromagnetic coupling modules and radio IC devices using the system |
| US8081541B2 (en) | 2006-06-30 | 2011-12-20 | Murata Manufacturing Co., Ltd. | Optical disc |
| US8081125B2 (en) | 2006-07-11 | 2011-12-20 | Murata Manufacturing Co., Ltd. | Antenna and radio IC device |
| US8228075B2 (en) | 2006-08-24 | 2012-07-24 | Murata Manufacturing Co., Ltd. | Test system for radio frequency IC devices and method of manufacturing radio frequency IC devices using the same |
| US8031124B2 (en) | 2007-01-26 | 2011-10-04 | Murata Manufacturing Co., Ltd. | Container with electromagnetic coupling module |
| US8009101B2 (en) | 2007-04-06 | 2011-08-30 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8755210B2 (en) | 2007-06-06 | 2014-06-17 | Abb Oy | Method for controlling frequency converter unit, and frequency converter assembly |
| EP2001102A3 (en) * | 2007-06-06 | 2016-07-06 | ABB Oy | Method for controlling frequency converter unit, and frequency converter assembly |
| US8235299B2 (en) | 2007-07-04 | 2012-08-07 | Murata Manufacturing Co., Ltd. | Wireless IC device and component for wireless IC device |
| US7762472B2 (en) | 2007-07-04 | 2010-07-27 | Murata Manufacturing Co., Ltd | Wireless IC device |
| US8193939B2 (en) | 2007-07-09 | 2012-06-05 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9460376B2 (en) | 2007-07-18 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US9830552B2 (en) | 2007-07-18 | 2017-11-28 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US7830311B2 (en) | 2007-07-18 | 2010-11-09 | Murata Manufacturing Co., Ltd. | Wireless IC device and electronic device |
| US7990337B2 (en) | 2007-12-20 | 2011-08-02 | Murata Manufacturing Co., Ltd. | Radio frequency IC device |
| US8915448B2 (en) | 2007-12-26 | 2014-12-23 | Murata Manufacturing Co., Ltd. | Antenna device and radio frequency IC device |
| US8973841B2 (en) | 2008-05-21 | 2015-03-10 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8960557B2 (en) | 2008-05-21 | 2015-02-24 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9022295B2 (en) | 2008-05-21 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9281873B2 (en) | 2008-05-26 | 2016-03-08 | Murata Manufacturing Co., Ltd. | Wireless IC device system and method of determining authenticity of wireless IC device |
| US7871008B2 (en) | 2008-06-25 | 2011-01-18 | Murata Manufacturing Co., Ltd. | Wireless IC device and manufacturing method thereof |
| US9077067B2 (en) | 2008-07-04 | 2015-07-07 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US8870077B2 (en) | 2008-08-19 | 2014-10-28 | Murata Manufacturing Co., Ltd. | Wireless IC device and method for manufacturing same |
| US9231305B2 (en) | 2008-10-24 | 2016-01-05 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8692718B2 (en) | 2008-11-17 | 2014-04-08 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US8917211B2 (en) | 2008-11-17 | 2014-12-23 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US9104950B2 (en) | 2009-01-30 | 2015-08-11 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US8690070B2 (en) | 2009-04-14 | 2014-04-08 | Murata Manufacturing Co., Ltd. | Wireless IC device component and wireless IC device |
| US8876010B2 (en) | 2009-04-14 | 2014-11-04 | Murata Manufacturing Co., Ltd | Wireless IC device component and wireless IC device |
| US9203157B2 (en) | 2009-04-21 | 2015-12-01 | Murata Manufacturing Co., Ltd. | Antenna device and method of setting resonant frequency of antenna device |
| US9564678B2 (en) | 2009-04-21 | 2017-02-07 | Murata Manufacturing Co., Ltd. | Antenna device and method of setting resonant frequency of antenna device |
| US8976075B2 (en) | 2009-04-21 | 2015-03-10 | Murata Manufacturing Co., Ltd. | Antenna device and method of setting resonant frequency of antenna device |
| US8847831B2 (en) | 2009-07-03 | 2014-09-30 | Murata Manufacturing Co., Ltd. | Antenna and antenna module |
| US8853549B2 (en) | 2009-09-30 | 2014-10-07 | Murata Manufacturing Co., Ltd. | Circuit substrate and method of manufacturing same |
| US8994605B2 (en) | 2009-10-02 | 2015-03-31 | Murata Manufacturing Co., Ltd. | Wireless IC device and electromagnetic coupling module |
| US9117157B2 (en) | 2009-10-02 | 2015-08-25 | Murata Manufacturing Co., Ltd. | Wireless IC device and electromagnetic coupling module |
| US9444143B2 (en) | 2009-10-16 | 2016-09-13 | Murata Manufacturing Co., Ltd. | Antenna and wireless IC device |
| US9460320B2 (en) | 2009-10-27 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Transceiver and radio frequency identification tag reader |
| US9178279B2 (en) | 2009-11-04 | 2015-11-03 | Murata Manufacturing Co., Ltd. | Wireless IC tag, reader-writer, and information processing system |
| US9461363B2 (en) | 2009-11-04 | 2016-10-04 | Murata Manufacturing Co., Ltd. | Communication terminal and information processing system |
| US9024725B2 (en) | 2009-11-04 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Communication terminal and information processing system |
| US10013650B2 (en) | 2010-03-03 | 2018-07-03 | Murata Manufacturing Co., Ltd. | Wireless communication module and wireless communication device |
| US9727765B2 (en) | 2010-03-24 | 2017-08-08 | Murata Manufacturing Co., Ltd. | RFID system including a reader/writer and RFID tag |
| US9024837B2 (en) | 2010-03-31 | 2015-05-05 | Murata Manufacturing Co., Ltd. | Antenna and wireless communication device |
| US9123996B2 (en) | 2010-05-14 | 2015-09-01 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US8905316B2 (en) | 2010-05-14 | 2014-12-09 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9558384B2 (en) | 2010-07-28 | 2017-01-31 | Murata Manufacturing Co., Ltd. | Antenna apparatus and communication terminal instrument |
| US8981906B2 (en) | 2010-08-10 | 2015-03-17 | Murata Manufacturing Co., Ltd. | Printed wiring board and wireless communication system |
| US8944335B2 (en) | 2010-09-30 | 2015-02-03 | Murata Manufacturing Co., Ltd. | Wireless IC device |
| US9166291B2 (en) | 2010-10-12 | 2015-10-20 | Murata Manufacturing Co., Ltd. | Antenna device and communication terminal apparatus |
| US9236651B2 (en) | 2010-10-21 | 2016-01-12 | Murata Manufacturing Co., Ltd. | Communication terminal device |
| US9761923B2 (en) | 2011-01-05 | 2017-09-12 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US8991713B2 (en) | 2011-01-14 | 2015-03-31 | Murata Manufacturing Co., Ltd. | RFID chip package and RFID tag |
| US8960561B2 (en) | 2011-02-28 | 2015-02-24 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US8937576B2 (en) | 2011-04-05 | 2015-01-20 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US9378452B2 (en) | 2011-05-16 | 2016-06-28 | Murata Manufacturing Co., Ltd. | Radio IC device |
| US8878739B2 (en) | 2011-07-14 | 2014-11-04 | Murata Manufacturing Co., Ltd. | Wireless communication device |
| US9543642B2 (en) | 2011-09-09 | 2017-01-10 | Murata Manufacturing Co., Ltd. | Antenna device and wireless device |
| US8905296B2 (en) | 2011-12-01 | 2014-12-09 | Murata Manufacturing Co., Ltd. | Wireless integrated circuit device and method of manufacturing the same |
| US9692128B2 (en) | 2012-02-24 | 2017-06-27 | Murata Manufacturing Co., Ltd. | Antenna device and wireless communication device |
| US10235544B2 (en) | 2012-04-13 | 2019-03-19 | Murata Manufacturing Co., Ltd. | Inspection method and inspection device for RFID tag |
| JP2015209817A (en) * | 2014-04-25 | 2015-11-24 | 株式会社川本製作所 | Liquid supply device |
| JP2016028822A (en) * | 2014-07-25 | 2016-03-03 | 株式会社ダイヘン | Power supply device, processing device including the same, welding device, and processing system |
| JP2017073861A (en) * | 2015-10-06 | 2017-04-13 | 株式会社カワデン | Drive control system |
| KR102126060B1 (en) * | 2019-01-28 | 2020-06-24 | 국제발전기콤푸레샤(주) | Electronic circuit of inverter controller for 55kW dedicated controller |
| JP2020145804A (en) * | 2019-03-05 | 2020-09-10 | 株式会社荏原製作所 | Motor assembly and water supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3637982B2 (en) | 2005-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0914150A (en) | Control system for inverter-driven pump | |
| US5629567A (en) | Speed control system for an AC locomotive | |
| US5920162A (en) | Position control using variable exciter feed through | |
| EP2701300B1 (en) | Motor control system, motor control device and brushless motor | |
| WO2009128198A1 (en) | Motor driving device, integrated circuit device, motor device and motor driving system | |
| WO2009111503A2 (en) | Phase logic circuits for controlling motors | |
| CN102832858A (en) | Control circuit for an EC-motor | |
| US20140200732A1 (en) | Motor control system, motor control method, and motor control device | |
| JP3711956B2 (en) | Driving method of rotating electric machine | |
| EP3650965B1 (en) | Motor control device | |
| JP2007085337A (en) | Vacuum pump device | |
| US4074180A (en) | Electric current generator arrangements | |
| US7378815B2 (en) | Speed monitoring device | |
| JP3790233B2 (en) | Multi-motor assembly structure | |
| CN113228498A (en) | Rotary machine drive system and control method for rotary machine drive system | |
| JP3568283B2 (en) | Operation control system for inverter-driven pump | |
| JPH1014253A (en) | Air-conditioner with inverter | |
| JPS5622598A (en) | Starting system for pulse motor | |
| JP2000069777A (en) | Motor rotating velocity monitoring apparatus and centrifugal separator provided with the apparatus | |
| CN105429526A (en) | Monitoring Device For An Electric Machine, Control Device And Method | |
| SU1053216A1 (en) | Device for flexible connection of two power systems | |
| JPH0998519A (en) | Driving equipment of electric vehicle | |
| JP6883760B2 (en) | Motor drive | |
| JPH0211513B2 (en) | ||
| KR0162045B1 (en) | Encoder connector abnormal detecting apparatus of a permanent synchronous motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20041217 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050105 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050105 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090121 Year of fee payment: 4 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090121 Year of fee payment: 4 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090121 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100121 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110121 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110121 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120121 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |