CN1877983B - Frequency conversion controller controlled by electronic control unit - Google Patents
Frequency conversion controller controlled by electronic control unit Download PDFInfo
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- CN1877983B CN1877983B CN2005101296121A CN200510129612A CN1877983B CN 1877983 B CN1877983 B CN 1877983B CN 2005101296121 A CN2005101296121 A CN 2005101296121A CN 200510129612 A CN200510129612 A CN 200510129612A CN 1877983 B CN1877983 B CN 1877983B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2205/00—Indexing scheme relating to controlling arrangements characterised by the control loops
- H02P2205/07—Speed loop, i.e. comparison of the motor speed with a speed reference
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- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention gets the motor (3) to produce starting torque by the converter (2) controlled by electronic control cell (1), then drives the load carrier(4) to switch the converter (2) to stable frequency, voltage and current control, and accordingly performs speed control to the motor (3). The control device of the said converter includes: the motor (3) used to make the chief axis (5) which can support the load carrier (4) up-and-down to perform rotary drive; the electronic control cell (1) used to control the rotary drive of the motor (3) by the converter (2); the code device (8) used to detect the rotation of the motor (3). The said electronic control cell (1) exerts high pressure order to the converter (2) when the motor (3) starts, simultaneously detects the rotation of the motor(3) by code device (8) to response the case that the motor (3) has been started, finally performs stable frequency, voltage and current control to the converter (2).
Description
Technical field
The present invention relates to the actuator that a kind of load that for example makes the sluice that is provided with in order to open and close stream, door body, gate, valve body etc. moves up and down, particularly relate to a kind of frequency changer controller that is controlled by an electronic control unit when motor being started in order to drive load up and down.
Background technology
In the past, from the state that uses industrial power that motor is driven, when by constant current type frequency converter motor being switched driving, the known method of employing was the method for synchronously switching of same power supplies.This method for synchronously switching, coming the state of CD-ROM drive motor from the use industrial power, when switching driving by constant current type frequency converter, in the process that the frequency that makes current-mode converter progressively rises, acquisition rises to the detecting signal that is substantially equal to the corresponding to moment of position after the industrial frequency, be carved into the only pulse signal of the width in the moment of the power-factor angle of process load motor when obtaining to have simultaneously from pulse generation, when phase place unanimity detecting signal takes place, carry out the inverse transformation control of current-mode converter in the moment that each pulse signal disappears, next by industrial power and electric current shape frequency converter after motor obtains electric power side by side, with industrial power from motor cutoff (for example, with reference to the clear 58-39276 communique of TOHKEMY).
In addition, known AC electrical valve or the gate that is used to open and close various pipelines or various water routes.This AC electrical valve or gate have: valve or gate; Alternating current motor, its driver's valve or gate; The frequency converter of alternating current motor; The opening and closing speed detection device, it detects the opening and closing speed of valve or gate; Frequency Converter Control portion, it makes the frequency converter frequency of frequency converter increase or reduce, so that opening and closing speed becomes the opening and closing speed in the interval appointment of aperture of each valve or gate.Frequency converter is installed on the driving mechanism of the valve that comprises alternating current motor or gate (for example, with reference to No. 3079426 communique of JP patent).
In the past, about being arranged on the watertight construction of the sluice on the water route, known have disclosedly keep and the structure of the protection of water-stop rubber about water-stop.The watertight construction of this sluice is: the door holder with opening of the front side wall that is provided in intake; open and close the door body of opening, the drive unit that this body is moved up and down; also have; water-stop when closing the water route in order to keep; the medial surface of door body relative with the doorway to the water-stop rubber that is provided with of the periphery of position; with make a body deviate from the projection body of supporting plate when the opening and closing operations of door body; thereby in the time of protection water-stop rubber; the counterbore of projection body is set; thereby keep the water-stop (for example, with reference to TOHKEMY 2003-206523 communique) when closing.
About the watertight construction of sluice, known having prevents the structure of the crush-cutting damage of the rubber blanket that produces when the door body is closed the anti-mouth of a river fully.The watertight construction of this sluice is: along with the lower end of door body in facial relative to the door holder of sluice side partly set water-stop rubber, when closing, import the fluid-tight press water via the press water entrance hole to water-stop rubber as back pressure, and by the outstanding stripes of triangle is pressed on the body, thereby the door body is closed into water-stop state (for example, with reference to the flat 7-42138 communique of TOHKEMY).
In addition; the inventor had before developed intelligent valve actuating mechanism. this intelligent valve actuating mechanism; detect the valve position limit; the limit of torque limit etc.; detect the humiture of frame inside; detect the wear extent of the internal thread of mainshaft bushing; predict its deterioration by the status data of motor or electronic unit; detect and monitor the wearing and tearing deterioration of drive component etc. in the mode of electricity; the status data of the drive current of motor etc.; thereby when carrying out self diagnosis; can corresponding these information and itself carry out the processing of normalization to installing by built-in control circuit; perhaps can corresponding above-mentioned information carry out parts swap; the demonstration of alarm etc. this intelligent valve actuating mechanism; demonstration is from the measured value of various transducers; response departs from the information of set point the measured value of status data is handled in control circuit; thereby sending parts swap repairs; the state output of alarm etc.; and responding each measured value and come automatic control to pass through the switching work of the stream of valve. controller responds measured value by the communication unit that is connected with control circuit; and set point is controlled (for example, with reference to TOHKEMY 2004-257420 communique).
Yet, be located at the barometric condenser torque motor on the valve actuating mechanism in the past, be starting torque in order to obtain the initial stage moment of torsion, make the motor rotation with magnet contactor etc.In addition, in valve actuating mechanism in the past, as above-mentioned, the watertight construction when closing for the water route that obtains a body, and adopted all devices, thus be used for the starting torque that the door body of closing opens and closes is become very big.In recent years, in valve actuating mechanism, load frequency converter and carry out control by the valve of frequency converter., in the vector frequency converter of rated value, owing to can't make torque motor produce required starting torque, so adopt control that some problems are still arranged by frequency converter as a kind of control method of valve.
Summary of the invention
The object of the present invention is to provide a kind of frequency changer controller that is controlled by an electronic control unit, it for can drive for example sluice with moving up and down, the door body, valve, in the actuator of the main shaft that the load of gate etc. is operated, the device that above-mentioned intelligent valve actuating mechanism is further developed, come the drive controlling correspondence to make the moving up and down motor of main shaft about the various information of load by frequency converter, particularly, when the load overload, for example, because the starting torque when starting has compared 200～400% with steady state load, so in order to ensure this starting torque, when load starts, be used for voltage waveform from electronic control unit to frequency converter input to being predetermined, current waveform and frequency are carried out the startup deal with data of shaping, and apply high voltage to motor from frequency converter, make motor produce starting torque, to the deal with data of frequency converter input stable state, and the mobile status that makes load is stably with the speed operation of expectation behind motor starting.
The present invention relates to a kind of frequency changer controller that is controlled by an electronic control unit, it is arranged in the actuator, and this actuator has: the motor that rotates driving for load is moved; The rotation of said motor is driven the power transmission that the mobile driving that is above-mentioned load is transmitted in conversion; And the encoder that detects the mobile status of above-mentioned load, it is characterized in that,
Above-mentioned frequency changer controller has: electronic control unit, and it produces starting torque for making said motor, and makes the startup deal with data that is used for voltage waveform, current waveform and frequency are carried out shaping; And frequency converter, it is in order to rotate the driving said motor, by input from the above-mentioned startup deal with data of above-mentioned electronic control unit and Be Controlled, above-mentioned electronic control unit is imported above-mentioned startup deal with data to above-mentioned frequency converter when above-mentioned load starts, send to said motor and apply high-tension instruction, simultaneously, detect the rotation of said motor by above-mentioned encoder, and response said motor situation about having started, above-mentioned frequency converter is switched to based on steady state process data frequency, voltage, Current Control, control the mobile status of above-mentioned load.
The present invention relates to a kind of frequency changer controller that is controlled by an electronic control unit, it is arranged in the actuator, this actuator has: the motor that rotates driving for load is moved, the rotation of said motor is driven the power transmission that the mobile driving that is above-mentioned load is transmitted in conversion, and the encoder that is used to detect the mobile status of above-mentioned load, it is characterized in that, have: electronic control unit, it produces starting torque in order to make said motor, generation is used for voltage waveform, current waveform and frequency are carried out the startup deal with data of shaping, frequency converter, it is in order to rotate the driving said motor, by input from the above-mentioned startup deal with data of above-mentioned electronic control unit and Be Controlled; The log-on data that above-mentioned startup deal with data is produced when input side with said motor is connected directly to industrial power is identical, above-mentioned electronic control unit is when the startup of the high moment of torsion of needs, import above-mentioned startup deal with data to above-mentioned frequency converter, send to said motor and apply high-tension instruction, simultaneously, above-mentioned encoder rotation, detecting said motor rotates, and when said motor starts, above-mentioned electronic control unit is in response to the signal from above-mentioned frequency converter and above-mentioned encoder, above-mentioned frequency converter is switched to based on the steady state process data frequency, voltage, Current Control, control the mobile status of above-mentioned load, wherein, above-mentioned high moment of torsion is meant, the moment of torsion that the above-mentioned load of 200～400% overload state of the steady state load that is in above-mentioned load is risen.
In addition, the above-mentioned startup deal with data that in above-mentioned electronic control unit, makes, the deal with data that produces when directly having imported industrial power is identical, and above-mentioned startup deal with data is imported into above-mentioned frequency converter, and high voltage put on said motor, make said motor produce above-mentioned starting torque.
In addition, above-mentioned electronic control unit can be detected and be confirmed the shift position of above-mentioned load by above-mentioned encoder.
In addition, this frequency changer controller constitutes according to following mode: to the signal of above-mentioned electronic control unit input from above-mentioned frequency converter and above-mentioned encoder, above-mentioned electronic control unit responds above-mentioned signal and controls above-mentioned frequency converter, thereby controls the operating state of above-mentioned load.
In addition, this frequency changer controller from the above-mentioned startup instruction for processing data time of above-mentioned electronic control unit to above-mentioned frequency converter input, is the interior short time of permissible range that above-mentioned frequency converter had originally.
In addition, this frequency changer controller, login has the moving limit position of above-mentioned load and the pulse value of predetermined desired location in above-mentioned electronic control unit, and above-mentioned electronic control unit indication selects above-mentioned load to arrive the speed of above-mentioned desired location, thereby controls above-mentioned frequency converter.
In addition, above-mentioned power transmission has: internal thread, itself and the external thread spiro fastening that is located on the main shaft that above-mentioned load has been installed; Mainshaft bushing, it has above-mentioned internal thread, and can be rotated to support on the frame; Worm gear, it is fixed on the above-mentioned mainshaft bushing; Worm screw, it is meshed with above-mentioned worm gear and transmits rotation; And rotating shaft, its rotation drives above-mentioned worm screw and is connected with motor.In addition, above-mentioned electronic control unit and above-mentioned frequency converter are contained in the cabinet, but this cabinet installing/dismounting be provided in the above-mentioned frame of above-mentioned actuator.
The frequency changer controller that this is controlled by an electronic control unit, owing to constitute as described above, so when using frequency converter to come starter, at control unit, be that electronic control unit makes the voltage waveform that produces when being used for the input of the power supply of industrial power, current waveform and frequency are carried out the identical startup deal with data of deal with data of shaping, and should start deal with data and be input to frequency converter and starter, make motor produce starting torque, behind motor starting, frequency converter is switched to specified, it is the frequency of the deal with data of stable state, voltage, Current Control, and carry out speed control to motor etc.Promptly, if frequency converter is only carried out the frequency of stable state, voltage, Current Control, starting torque in the time of then can not guaranteeing starter, and when motor starting, need industrial power, but in the frequency changer controller that this is controlled by an electronic control unit, as long as start the startup deal with data of waveform etc. to frequency converter input from electronic control unit, just can make frequency converter moment generation high voltage, make motor produce starting torque, thereby can CD-ROM drive motor, particularly need not adopt jumbo frequency converter for the startup of motor, and can use cheap more rated capacity, it is the frequency converter of stable state electric capacity, also can bring into play the characteristic that produces desired starting torque, thus, can make this device itself at an easy rate.In addition, will be the insignificant utmost point short time to the time of frequency converter input from the startup deal with data of the startup waveform of electronic control unit etc., and can not destroy the function of frequency converter, thereby can guarantee the abundant durability of frequency converter.
In addition, this frequency changer controller, for example, if be applied to valve actuating mechanism, then because the control of motor is Frequency Converter Control, so can confirm the Stateful Inspection maintenance according to function, maintenance period etc., and can make the various settings of the instrument of each transducer etc. become easy, and can be with its certain setting, and encoder and reversible device are set and reduce the number of packages of parts, thereby reduce failure rate when can reduce cost, and need not open shell, just can easily carry out the adjustment of position limit and torque limit from the outside, thereby can prevent the water intrusion switch portion, and can reduce failure rate. in addition, valve actuating mechanism in the past, the limit switch transfer part, is that gear drive by machinery constitutes by pointer to the transfer part of aperture instrument transmission, and the change of the number of packages of parts is many, to each limit, the adjustment that is set point needs special technique, thereby must carry out periodic inspection confirms to have no abnormal, but, frequency changer controller by this electronic control unit control, if be applied to valve actuating mechanism, then do not need parts as described above and work, the assembling of the gear of decelerator more complicated once in the aperture instrument, but can show by digital lcd and constitute, and can not want in the past geared system.
Description of drawings
Fig. 1 is the key diagram of an embodiment of the frequency changer controller of the motor of expression load of the present invention when starting.
Fig. 2 is the key diagram of relation of electronic control unit, frequency converter and motor of the frequency changer controller of this motor of expression.
Fig. 3 is the profile that example frequency changer controller, valve actuating mechanism of the motor when this load starts has been assembled in expression.
The process chart of the action of the frequency changer controller of the motor when Fig. 4 is this load startup of expression.
Embodiment
Below, with reference to accompanying drawing, describe at the embodiment of the frequency changer controller that is controlled by an electronic control unit of the present invention.The frequency changer controller that this is controlled by an electronic control unit, for example, the best is loaded on the valve actuating mechanism and is used, as Fig. 1 and shown in Figure 3, this valve actuating mechanism for example has: flow channel tube 19, and it is fixed on the frame 17 that is connected with the stream of water route, water treatment plant etc.; Main shaft 5 has been installed the valve 13 as the load 4 of the gate that disposes for the stream 18 that opens and closes flow channel tube 19, sluice, Men Ti etc. on it, and moving up and down being bearing on the frame 17; Mainshaft bushing 16 has and be located at the internal thread 15 that the external screw thread 14 on the main shaft 5 is screwed, and rotatable being bearing on the frame 17; And power transmission 10, it moves up and down main shaft 5 in order to rotate driving internal thread 15, will transmit to mainshaft bushing 16 from the rotatablely moving of motor 3 as drive unit, thereby be delivered to main shaft 5.Power transmission 10 has: worm gear 6, and it is fixed on the mainshaft bushing 16, is used for by internal thread 15 rotations main shaft 5 being moved up and down; Worm screw 7, it is meshed with worm gear 6, transmits the rotation of automatic drive device.
This valve actuating mechanism is, the intelligent valve actuating mechanism that in disclosed TOHKEMY 2004-257420 communique, be put down in writing, further developing especially becomes the mechanism that also can utilize frequency converter 2 to control when motor 3 starts, same with this intelligent valve actuating mechanism, for the various data under the operating state that detects valve, possess following various transducer, for example: moment of torsion detects potentiometer 9, and it detects the moment of torsion that is carried on the main shaft 5; Encoder 8 detects the mobile status of load 4 or the rotation number of motor 3; Temperature sensor, it is made of the temperature sensitization apparatus that detects as the temperature of motor 3 grades of drive unit; Humidity sensor, it detects the humidity inside of valve actuating mechanism; Valve wear sensor, current sensor.Jaw opening sensor, it detects the aperture of the stream 18 of valve 13; Vibrating sensor, it detects the vibration of valve actuating mechanism; Wear sensor, it detects the wearing and tearing of the internal thread 15 of mainshaft bushing 16; Current sensor, it detects the starting current of CD-ROM drive motor 3, thereby detects the running number of times.
This valve actuating mechanism as shown in Figure 3, has: main shaft 5, the load 4 of the valve 13 that its supporting flow path 18 moving up and down opens and closes, gate 12 etc.; Motor 3, it rotates driving, and main shaft 5 is moved up and down; Power transmission 10, it transmits rotation of motor 3 conversion for moving up and down, and main shaft 5 is moved up and down; Control unit is an electronic control unit 1, and its rotation of controlling motor 3 by frequency converter 2 drives; And encoder 8, it detects the rotation of motor 3 or the mobile status of load 4. and general, valve actuating mechanism has such formation: because gate 12, the load of valve 13 grades is provided with water-stop rubber, so around load 4, use sheet metal to wait to strengthen the air-tight state of closed condition, the hydraulic pressure that can water-fastly hit etc. so, in valve actuating mechanism, when making the startup of load 4 risings, become the overload state, be 200～400%. these frequency changer controllers of steady state load, be to use frequency converter 2 steadily to control the device of the motor 3 of the high moment of torsion when needing to start, for example, when starting under the situation of shutter opening and closing, by the motor 3 that needing with respect to steady state load to realize 300% moment of torsion of frequency converter 2, this frequency converter 2 is controlled by electronic control unit 1.
In this frequency changer controller that is controlled by an electronic control unit, electronic control unit 1 and frequency converter 2, but be contained in the cabinet 20 in the frame that is provided in actuator 17 of installing/dismounting, can use as a kind of kit.This frequency changer controller, especially, be to use the frequency converter of controlling by electronic control unit 12, motor during to overload, when particularly starting carries out the device of start-up control, as Fig. 1 and shown in Figure 2, it is characterized in that, have: electronic control unit 1, it makes the startup deal with data, and these data are carried out shaping to voltage waveform, current waveform and the frequency of the starting torque that is used to produce motor 3; And frequency converter 2, it comes Be Controlled by the input from the startup deal with data of electronic control unit 1, and the rotation that is used to carry out motor 3 drives.In addition, this frequency changer controller, it is characterized in that, particularly, when load 4 is started, will be input to frequency converter 2 from the startup deal with data of electronic control unit 1, and send motor 3 is applied high-tension instruction, detect out the rotation of motor 3 simultaneously by encoder 8, and response motor 3 to be activated and frequency converter 2 is switched to according to rated value be the control of steady state process data frequency, voltage, electric current, thereby the moving up and down of control load body 4.
That is, be startup deal with data that can starter 3 to be input to frequency converter 2 and to impose on motor 3 again, thereby produce the unit of the moment of torsion of starter 3 as the electronic control unit 1 of control unit.Encoder 8 is, for example, as shown in Figure 1, is connected to motor 3 by reduction gearing 21, perhaps, as shown in Figure 1, is located on the worm gear 6 that drives the main shaft 5 that is connected with rotating shaft 11, and detects the rotary speed of motor 3; To frequency converter 2 input decoding spikes, next confirm that by electronic control unit 1 rotating speed of motor 3 is a rotation number.Encoder 8 can detect the service position of confirming load 4, and constitutes in the mode that this signal is fed back to electronic control unit 1.
This frequency changer controller, constitute in such a way: when load 4 is started, to the signal of electronic control unit 1 input from frequency converter 2 and encoder 8, electronic control unit 1 response is from the signal of frequency converter 2 and encoder 8, and can carry out the control of frequency, voltage, electric current, thereby the operating state stably of moving up and down of load 4 etc. is controlled frequency converter 2.
In this frequency changer controller, from the high-tension instruction time of electronic control unit 1 to frequency converter 2 inputs, it is the short time in the allowed band that frequency converter 2 had originally, for example be about tens of msec, it almost is the short time of negligible degree in the control of passing through the startup deal with data of frequency converter 2. so, even start deal with data to frequency converter 2 inputs from electronic control unit 1, also because the time weak point, so the function of frequency converter is damaged to some extent, thereby without detriment to durability.
In addition, in this frequency changer controller, login the pulse value of the desired location that upper limit position, the lower position of load 4 is arranged and be predetermined at electronic control unit 1, electronic control unit 1 will arrive the speed of the desired location of load 4, indicate selection for frequency converter 2, thus the driving of control motor 3.So, this frequency changer controller is when being applied to valve actuating mechanism, the control of frequency that can be by frequency converter 2, voltage, electric current, the valve 13 of load 4 is adjusted to the desired speed that moves up and down, thereby can makes load 4 so that promptly move the speed of expectation, the correct position to regulation rapidly.
In addition, in this embodiment, power transmission 10 has: internal thread 15, and it is screwed with the external screw thread 14 that is located on the main shaft 5; Mainshaft bushing 16, it has internal thread 15 and rotatable being bearing on the frame 17; Worm gear 6, it is fixed on the mainshaft bushing 16; Worm screw 7, it is meshed with worm gear 6 and transmits rotation; And rotating shaft 11, its rotation drives worm screw 7 and is connected with motor 3.
Below, the process chart with reference to shown in Figure 4 illustrates the work according to the frequency changer controller of this electronic-controlled installation.At first, utilize encoder 8 to confirm the position of the on-off action of gates, for example, be confirmed to be for load 4 closed betray 18 airtight the time state.This frequency changer controller, when coming starter 3 by control by the frequency converter 2 of electronic control unit 1 control, as in the past, in electronic control unit 1, make the startup deal with data, and will be input to frequency converter 2 in the startup deal with data that electronic control unit 1 makes, thereby send data command (step S1), above-mentioned startup deal with data is and the identical log-on data of log-on data that forms when directly importing with industrial power (not having diagram), promptly voltage waveform, current waveform and frequency is carried out the startup deal with data that shaping is handled.In this frequency changer controller, input is from the startup deal with data of electronic control unit 1 and frequency converter 2 loads, and in the future self frequency-changing's device 2 based on the output that starts deal with data, output to motor 3 (step S2).By output, make motor 3 start (step S3) from frequency converter 2.When the startup by motor 3 drives load 4, encoder 8 rotations (step S4).The rotating speed of encoder 8 is identified (step S5) by pulse feedback to electronic control unit 1.So electronic control unit 1 judges whether the coded pulse from encoder 8 is the umber of pulse (step S6) of predetermined regulation.In this embodiment, encoder 8, for example whenever turning around is 32 pulses, and the startup of load 4 is 4 pulses of the umber of pulse of encoder 8, and thus, electronic control unit 1 is confirmed the startup of motor 3.At this, 4 pulses are equivalent to encoder 8 and rotate 1/8 circle.
In this frequency changer controller, the deal with data instruction during based on the startup of frequency converter 2 for example, is made as 2 so not long seconds.Though its reason is because by transmitting time the time for extremely lack of electronic control unit 1 for frequency converter 2, but if the deal with data instruction by electronic control unit 1 during for the startup of frequency converter 2, carry out repeatedly in crossing for a long time for frequency converter 2, then may impair the durability of frequency converter 2 or cause damage, so in this embodiment, for example be set at the short time about 2 seconds, if carry out in the short time about 2 seconds, then the bad influence to frequency converter 2 can be limited in the minimum zone.This frequency changer controller is in 2 seconds, when in electronic control unit 1, not being subjected to the feedback of 4 pulses of sending from encoder 8, stop by the deal with data (step S13) of electronic control unit 1 to frequency converter 2 transmissions, and prevent that frequency converter 2 from sustaining damage, and carry out processing instruction once more again.This frequency changer controller, all the time relatively from the startup deal with data of electronic control unit 1, be the log-on data instruction and the output of frequency converter 2, thereby electronic control unit 1 Be Controlled (step S14).
This frequency changer controller, load 4 started in 2 seconds, promptly, if electronic control unit 1 has been confirmed 4 pulses from encoder 8, and when the coded pulse of encoder 8 is the umber of pulse of predetermined regulation, motor 3 starts really and carries out the driving that moves up and down to load 4, so be in the high-tension state that does not need starter 3 required, therefore send instruction from electronic control unit 1 to frequency converter 2, to switch to the steady state data instruction by the control of the frequency converter 2 of electronic control unit 1 control, it is the frequency of stable state, voltage, Current Control (step S7). import steady state datas instructions (step S8) from electronic control unit 1 to frequency converter 2, make load 4 move (step S9) to the position of predetermined regulation. next, electronic control unit 1 confirms by the umber of pulse of encoder 8 is counted whether load 4 arrives the position of predetermined regulation on one side, one side is moved load 4 and is judged (step S10). when load 4 has arrived the position of predetermined regulation, stop to send data command (step S11) to frequency converter 2 from electronic control unit 1, when load 4 does not arrive the position of regulation, subsequent treatment is to carry out step S9 repeatedly, and carry out the mobile control of load 4 by frequency converter 2. if stop from the data command of electronic control unit 1 to frequency converter 2, then the mobile of load 4 stops, thereby finishes to drive processing (step S12).
The frequency changer controller that is controlled by an electronic control unit of the present invention, for example, the valve actuating mechanism that moves up and down applicable to the load that makes the sluice that is provided with in order to open and close stream, door body, gate, valve body etc., and can control the starting torque of motor, thereby starter by the frequency converter that is controlled by an electronic control unit.
Claims (7)
1. frequency changer controller that is controlled by an electronic control unit, it is arranged in the actuator, this actuator has: the motor that rotates driving for load is moved, the rotation of said motor is driven the power transmission that the mobile driving that is above-mentioned load is transmitted in conversion, and the encoder that is used to detect the mobile status of above-mentioned load, it is characterized in that
Have:
Electronic control unit, it produces starting torque in order to make said motor, generates the startup deal with data that is used for voltage waveform, current waveform and frequency are carried out shaping,
Frequency converter, it is in order to rotate the driving said motor, by input from the above-mentioned startup deal with data of above-mentioned electronic control unit and Be Controlled;
The log-on data that above-mentioned startup deal with data is produced when input side with said motor is connected directly to industrial power is identical,
Above-mentioned electronic control unit is when the startup of the high moment of torsion of needs, import above-mentioned startup deal with data to above-mentioned frequency converter, send to said motor and apply high-tension instruction, simultaneously, above-mentioned encoder rotation, detecting said motor rotates, and when said motor starts, above-mentioned electronic control unit is in response to the signal from above-mentioned frequency converter and above-mentioned encoder, above-mentioned frequency converter is switched to based on the steady state process data frequency, voltage, Current Control is controlled the mobile status of above-mentioned load, wherein, above-mentioned high moment of torsion is meant, the moment of torsion that the above-mentioned load of 200～400% overload state of the steady state load that is in above-mentioned load is risen.
2. frequency changer controller as claimed in claim 1 is characterized in that, above-mentioned startup deal with data is imported into above-mentioned frequency converter, and puts on said motor, makes said motor produce above-mentioned starting torque.
3. frequency changer controller as claimed in claim 1, it is characterized in that, the rotating speed of above-mentioned encoder that is used to detect the rotating speed of said motor is identified to above-mentioned electronic control unit by pulse feedback, above-mentioned electronic control unit judges that the coded pulse from above-mentioned encoder is the umber of pulse of predetermined regulation, can confirm position as the on-off action of the gate of above-mentioned load with this.
4. frequency changer controller as claimed in claim 1, it is characterized in that, is short time in permissible range from above-mentioned electronic control unit to the above-mentioned startup instruction for processing data time of above-mentioned frequency converter input, this permissible range is meant, can not impair the durability of above-mentioned frequency converter or cause the scope of damage for above-mentioned frequency converter.
5. frequency changer controller as claimed in claim 1, it is characterized in that, login has the moving limit position of above-mentioned load and the pulse value of predetermined desired location in above-mentioned electronic control unit, above-mentioned electronic control unit indication selects above-mentioned load to arrive the speed of above-mentioned desired location, thereby controls above-mentioned frequency converter.
6. frequency changer controller as claimed in claim 1 is characterized in that, above-mentioned power transmission has:
Internal thread, itself and the external thread spiro fastening that is located on the main shaft that above-mentioned load has been installed;
Mainshaft bushing, it has above-mentioned internal thread, and can be rotated to support on the frame;
Worm gear, it is fixed on the above-mentioned mainshaft bushing;
Worm screw, it is meshed with above-mentioned worm gear and transmits rotation; And
Rotating shaft, its rotation drives above-mentioned worm screw, and is connected with motor.
7. frequency changer controller as claimed in claim 6 is characterized in that, above-mentioned electronic control unit and above-mentioned frequency converter are contained in the cabinet, but this cabinet installing/dismounting be provided in the above-mentioned frame of above-mentioned actuator.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-169551 | 2005-06-09 | ||
| JP2005169551 | 2005-06-09 | ||
| JP2005169551A JP4681953B2 (en) | 2005-06-09 | 2005-06-09 | Inverter control device with electronic control unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1877983A CN1877983A (en) | 2006-12-13 |
| CN1877983B true CN1877983B (en) | 2010-05-05 |
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ID=37510319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101296121A Expired - Fee Related CN1877983B (en) | 2005-06-09 | 2005-12-13 | Frequency conversion controller controlled by electronic control unit |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4681953B2 (en) |
| KR (1) | KR100987290B1 (en) |
| CN (1) | CN1877983B (en) |
| TW (1) | TW200644399A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185161B (en) * | 2008-07-18 | 2016-07-06 | 芙罗服务管理公司 | variable speed actuator |
| CN102099607B (en) | 2008-07-18 | 2015-05-27 | 芙罗服务管理公司 | Variable speed actuator |
| US10094485B2 (en) | 2008-07-18 | 2018-10-09 | Flowserve Management Company | Variable-speed actuator |
| CN102035458A (en) * | 2010-07-22 | 2011-04-27 | 荣信电力电子股份有限公司 | Current control method used for high-voltage transducer |
| CN104775400B (en) * | 2015-04-13 | 2016-04-27 | 翟德海 | Mine pump house is to the full-automatic checkgate of absorbing well, absorption well |
| CN104846832A (en) * | 2015-06-03 | 2015-08-19 | 中船第九设计研究院工程有限公司 | Construction method of circular deep foundation pit enclosure of discrete pile support |
| CN110890851A (en) * | 2019-12-06 | 2020-03-17 | 湖南力诚新能源科技有限公司 | Motor control circuit of electric engineering machinery |
| IT202200000710A1 (en) * | 2022-01-18 | 2023-07-18 | Valbia S R L | MULTI-TURN ACTUATOR FOR VALVE |
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| JPH0428797U (en) * | 1990-06-27 | 1992-03-06 | ||
| JPH08237975A (en) * | 1995-02-24 | 1996-09-13 | Toshiba Corp | Operating method for three-phase induction motor |
| JPH1042586A (en) * | 1996-07-18 | 1998-02-13 | Olympus Optical Co Ltd | Motor drive circuit |
| JP3079426B2 (en) * | 1998-02-02 | 2000-08-21 | 株式会社荏原製作所 | AC motorized valve or gate |
| US6424114B1 (en) * | 1998-09-25 | 2002-07-23 | Fumito Komatsu | Synchronous motor |
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- 2005-06-09 JP JP2005169551A patent/JP4681953B2/en active Active
- 2005-12-05 KR KR1020050117415A patent/KR100987290B1/en active IP Right Grant
- 2005-12-13 CN CN2005101296121A patent/CN1877983B/en not_active Expired - Fee Related
- 2005-12-23 TW TW094146014A patent/TW200644399A/en not_active IP Right Cessation
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|---|---|---|---|---|
| CN1504399A (en) * | 2002-12-04 | 2004-06-16 | 上海振华港口机械（集团）股份有限公 | Tire type gantry container crane using super capacitor |
| CN1525094A (en) * | 2003-02-24 | 2004-09-01 | 西部电机株式会社 | Valve actuating mechanism with self-diagnostic function and intelligent valve actuating mechanism |
| CN2703031Y (en) * | 2004-05-09 | 2005-06-01 | 河海大学 | Double-lifting point load limitation controller secondary instrument |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20060128608A (en) | 2006-12-14 |
| KR100987290B1 (en) | 2010-10-12 |
| JP2006345653A (en) | 2006-12-21 |
| CN1877983A (en) | 2006-12-13 |
| TWI299610B (en) | 2008-08-01 |
| JP4681953B2 (en) | 2011-05-11 |
| TW200644399A (en) | 2006-12-16 |
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