CN201892727U - Tester for control mechanism of reciprocal-energy-feed double-straight-line induction motor - Google Patents
Tester for control mechanism of reciprocal-energy-feed double-straight-line induction motor Download PDFInfo
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- CN201892727U CN201892727U CN2010205054325U CN201020505432U CN201892727U CN 201892727 U CN201892727 U CN 201892727U CN 2010205054325 U CN2010205054325 U CN 2010205054325U CN 201020505432 U CN201020505432 U CN 201020505432U CN 201892727 U CN201892727 U CN 201892727U
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- line inductance
- inductance electromotor
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Abstract
The utility model relates to a tester for a control mechanism of a reciprocal-energy-feed double-straight-line induction motor, belonging to the technical field of the control mechanism of the motor. The tester comprises a first straight line induction motor (LIM-1), a second straight line induction motor (LIM-2), a control unit, an inversion unit and a communication unit, wherein the control unit comprises a DSP (digital signal processor) control plate, an IGBT (insulated gate bipolar translator) drive plate, a voltage sensor, a current sensor and a velocity sensor; the inversion unit comprises a four-quadrant converter (REC), a first inverter (INV-1), a second inverter (INV-2), a first capacitor (C1) and a second capacitor (C2); and the communication unit comprise an upper computer and a drive chip. The tester has the advantages that the thrust magnitude of a power generator is changed, so as to achieve the purpose of simulating the switch-on and switch-off characteristics of a breaker when load varies; and the tester also realizes reciprocal energy feed and completes energy feedback, thereby being more energy-saving.
Description
Technical field:
The utility model belongs to the electric operating mechanism technical field, particularly a kind of energy mutual feedback formula bilinear induction motor operating mechanism test unit.
Background technology:
Isolating switch mainly is the insulated tension pole motion that drives arc-chutes by motor secondary motion drive link mechanism with the line inductance electromotor operating mechanism, realizes the breaking-closing operating of isolating switch.Because normal operation of circuit breaker voltage is under tens kilovolts even higher voltage environment, the experiment whether conventional its operating mechanism performance of checking satisfies the isolating switch requirement can only be carried out under idle condition.And some gap of divide-shut brake curve under isolating switch load time-division combined floodgate curve and the idle condition, conventional test unit can not well be verified the rationality and the validity of line inductance electromotor operating mechanism design.In addition, device does not have the energy back function, causes the waste of energy.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the utility model provides a kind of energy mutual feedback formula bilinear induction motor operating mechanism test unit, first line inductance electromotor (LIM-1) drives second line inductance electromotor (LIM-2) action, mimic-disconnecting switch breaking-closing operating as operating mechanism on the one hand; Second line inductance electromotor (LIM-2) feeds back to electrical network as the electricity that generator will send on the other hand, reaches the purpose that energy circulation is utilized.
This device comprises first line inductance electromotor (LIM-1), second line inductance electromotor (LIM-2), control module, inversion unit and communication unit;
Control module comprises DSP control panel, IGBT drive plate, voltage sensor, current sensor and speed pickup;
Inversion unit comprises four quadrant convertor (REC), first inverter (INV-1), second inverter (INV-2), first electric capacity (C1) and second electric capacity (C2);
Communication unit comprises host computer and chip for driving;
The connection of this device: first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) are linked together by coupling spindle, form the bilinear induction motor, the shared secondary reaction plate of first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2), constituted the core of test unit, speed pickup is installed on the coupling spindle, and the output terminal of speed pickup is received the input pin of DSP control panel; Line voltage is received the input end of four quadrant convertor (REC), three-phase alternating current is rectified into direct current, the output terminal of four quadrant convertor (REC) inserts first inverter (INV-1) input end through first electric capacity (C1), first inverter (INV-1) converts direct current to primary coil winding that alternating current inserts first line inductance electromotor (LIM-1), the alternating current that second line inductance electromotor (LIM-2) sends is imported second inverter (INV-2) and is rectified into direct current and feeds back to DC side through second electric capacity (C2), supplies with first inverter (INV-1) and first line inductance electromotor (LIM-1) uses or feed back to electrical network; The input end of voltage sensor and current sensor all is connected to the signal outgoing side of four quadrant convertor (REC), first inverter (INV-1) and second inverter (INV-2), and output terminal all is connected to the input pin of dsp chip; The input end of IGBT drive plate all links to each other with dsp chip pwm signal output pin, and output terminal is connected to the signal input end of four quadrant convertor (REC), first inverter (INV-1) and second inverter (INV-2); The communication interface of dsp chip is connected to host computer by the chip for driving of special use.
Described first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) are the single-sided linear induction machine.
The course of work of this test unit is as follows: four quadrant convertor (REC) is rectified into direct current with the electrical network three-phase alternating current, the DSP control panel is controlled first inverter (INV-1), first line inductance electromotor (LIM-1) that three-phase alternating current supplies with at motoring condition that will meet the requirements and is used, and second line inductance electromotor (LIM-2) that first line inductance electromotor (LIM-1) action drives shaft coupling moves together; The DSP control panel is suitably controlled second inverter (INV-2), making the elementary stator frequency of second line inductance electromotor (LIM-2) be lower than speed in frequency moves at generating state, the three-phase alternating current that sends is rectified into direct current through second inverter (INV-2), feed back to DC side and supply with first line inductance electromotor (LIM-1) again and move or feed back to electrical network, make energy be fully used.By adjusting the slip frequency of second line inductance electromotor (LIM-2), change the size of generator thrust, thus the purpose of divide-shut brake characteristic when reaching the mimic-disconnecting switch load variations.The DSP control panel is handled electric moter voltage, current of electric and the motor velocity signal of voltage sensor, current sensor and speed pickup collection, data after handling are sent on the host computer, test unit information is shown, host computer is analyzed information simultaneously, and next step action message of test unit is passed to the DSP control panel.
The distinguishing feature of energy mutual feedback formula bilinear induction motor mechanism test unit is an energy mutual feedback, the input electric power P of first line inductance electromotor (LIM-1)
In1Connect axle head output mechanical power P through being delivered to after a series of losses
Out1, because the connection of two motor coaxles, so P
Out1=P
Out2, realized the transmission of energy from first line inductance electromotor (LIM-1) to second line inductance electromotor (LIM-2), and P
Out2Flow back into the common DC bus side through after a series of losses again, finished the energy feedback.Make P
SWBe the switching loss summation of current transformer, P
MWBe the loss summation of two motors, energy loss P
S=P
SW+ P
MW, i.e. the energy of electrical network input just is used for overcoming the switching loss of current transformer and the loss of two motors.Common P
SWAnd P
MWBe worth all very for a short time, promptly only need absorb the test mission that seldom energy just can be finished high-power grade, so this device have energy-conservation function from electrical network.
Advantage of the present utility model: one, by adjusting the slip frequency of second line inductance electromotor (LIM-2), change the size of generator thrust, thus the purpose of divide-shut brake characteristic during the mimic-disconnecting switch load variations; Two, this device is by the transmission of energy from first line inductance electromotor (LIM-1) to second line inductance electromotor (LIM-2), realized energy mutual feedback, the input electric power of first line inductance electromotor is delivered to connection axle head output mechanical power and flow back into the common DC bus side through after a series of losses again simultaneously, has finished the energy feedback.The energy of electrical network input just is used for overcoming the switching loss of current transformer and the loss of two motors, only need just can finish the task of high-power grade from electrical network absorption energy seldom, and is more energy-conservation.
Description of drawings:
Fig. 1 is the overall construction drawing of the utility model energy mutual feedback formula bilinear induction motor operating mechanism test unit;
Fig. 2 is the utility model energy mutual feedback formula bilinear induction motor structural representation;
Fig. 3 presents the energy Flow graph of a relation of test unit mutually for the utility model;
Fig. 4 is the utility model IGBT drive plate circuit diagram;
Fig. 5 is the utility model RS-232 and TMS320LF2407A hardware connection layout;
Embodiment:
The utility model energy mutual feedback formula bilinear induction motor operating mechanism test unit is illustrated with accompanying drawing in conjunction with the embodiments.
To choose model be TMS320LF2407A to dsp chip in the present embodiment, it is VLA517-01R that the acp chip of IGBT drive plate is chosen model, it is WIN-9E that four quadrant convertor is chosen model, it is 6SE70 that inverter is chosen model, it is HV25-P that voltage sensor is chosen model, it is CHF600-B that current sensor is chosen model, and it is SK-F-K that speed pickup is chosen model, and DSP and host computer carry out the communication transmission by the chip for driving SP3223EEY that meets rs-232 standard;
This equipments overall structure comprises first line inductance electromotor (LIM-1), second line inductance electromotor (LIM-2), control module, inversion unit and communication unit as shown in Figure 1;
Control module comprises DSP control panel, IGBT drive plate, voltage sensor, current sensor and speed pickup;
Inversion unit comprises four quadrant convertor (REC), first inverter (INV-1), second inverter (INV-2), first electric capacity (C1) and second electric capacity (C2);
Communication unit comprises host computer and chip for driving;
The connection of this device: first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) are linked together by coupling spindle, form the bilinear induction motor, the shared secondary reaction plate of first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) has constituted the core of control device as shown in Figure 2.Speed pickup (SK-F-K) is fixed on the main shaft of bilinear induction motor, the output speed signal of speed pickup receive dsp chip mould number converter ADC pin; Line voltage inserts the input end of four quadrant convertor (REC), three-phase alternating current is rectified into direct current, the output terminal of four quadrant convertor (REC) inserts first inverter (INV-1) input end through first electric capacity (C1), first inverter (INV-1) converts direct current to satisfy the test unit requirement alternating current and inserts first line inductance electromotor (LIM-1) primary coil winding, the alternating current that second line inductance electromotor (LIM-2) sends is imported second inverter (INV-2) and is rectified into direct current and feeds back to DC side through second electric capacity (C2), supplies with first inverter (INV-1) and first line inductance electromotor (LIM-1) uses or feed back to electrical network; The input end of voltage sensor and current sensor all is connected to the status signal outgoing side of four quadrant convertor (REC), first inverter (INV-1) and second inverter (INV-2), voltage sensor and current sensor output terminal all be connected to dsp chip mould number converter ADC pin; On the PWM output pin of the task manager A of the input end connection dsp chip of IGBT drive plate, receive the signal input end of four quadrant convertor (REC), first inverter (INV-1) and second inverter (INV-2) after the output signal; The communication interface SCI-TXD of dsp chip, SCI-RXD are connected to the T of chip for driving SP3223E
1IN I and R
1On the OUT, the T of SP3223E
1OUTI and R
1IN links to each other as shown in Figure 5 with 2,3 pins of RS232, and the opposite side of RS-232 links to each other with host computer.
Described first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) are the single-sided linear induction machine.
The course of work of this device is as follows: four quadrant convertor (REC) is rectified into direct current with the electrical network three-phase alternating current, the DSP control panel is controlled first inverter (INV-1) the three-phase alternating current supply of Pass Test matching requirements is moved at first line inductance electromotor (LIM-1) of motoring condition, and second line inductance electromotor (LIM-2) that first line inductance electromotor (LIM-1) action drives shaft coupling moves together; The DSP control panel is suitably controlled second inverter (INV-2), making the elementary stator frequency of second line inductance electromotor (LIM-2) be lower than speed in frequency moves at generating state, the three-phase alternating current that sends is rectified into direct current through second inverter (INV-2), feed back to that DC side is supplied with first inverter (INV-1) again and first line inductance electromotor (LIM-1) uses or feed back to electrical network, make energy be fully used.By adjusting the slip frequency of second line inductance electromotor (LIM-2), change the size of generator thrust, thus the purpose of divide-shut brake characteristic during the mimic-disconnecting switch load variations.The DSP control panel is handled electric moter voltage, electric current and the rate signal of voltage, electric current and speed pickup collection, data after handling are sent to host computer, test unit information is shown, host computer is analyzed information simultaneously, and next step action message of test unit is passed to the DSP control panel
The distinguishing feature of energy mutual feedback formula bilinear induction motor mechanism test unit is an energy mutual feedback, and promptly energy can be realized feedback mutually in the inside of " two inverter one motor ", and can also feed back to electrical network by four quadrant convertor.Its energy-saving principle as shown in Figure 3, P wherein
sBe the electrical network power input; P
R, P
11, P
12Be respectively the switching loss of four quadrant convertor REC, inverter INV-1 and inverter INV-2, P
In1, P
Em1And P
Out1Be respectively input electric power, electromagnetic power and the output mechanical power of linear electric motors LIM-1; P
In2, P
Em2And P
Out2Be respectively the electromotive power output of linear electric motors LIM-2, electromagnetic power and input mechanical output; P
Fe1, P
Fe2Be respectively the core loss of linear electric motors LIM-1 and LIM-2; P
Cu11And P
Cu12Be respectively the elementary stator copper loss of linear electric motors LIM-1, LIM-2; P
Cu21And P
Cu22Be respectively the secondary rotor copper loss of linear electric motors LIM-1 and LIM-2; P
Z1And P
Z2Be respectively mechanical loss and the added losses sum of linear electric motors LIM-1 and LIM-2.The input electric power P of Fig. 4 cathetus motor LIM-1
In1Connect axle head output mechanical power P through being delivered to after a series of losses
Out1, because the connection of two motor coaxles, so P
Out1=P
Out2, realized the transmission of energy from LIM-1 to LIM-2, and P
Out2Flow back into the common DC bus side through after a series of losses again, finished the energy feedback.Make P
SW=P
R+ P
11+ P
12, P
MW=P
In1-P
In2As can be seen from the figure, P
SWBe the switching loss summation of current transformer, P
MWBe the loss summation of two motors, and P is arranged
S=P
SW+ P
MW, i.e. the energy of electrical network input just is used for overcoming the switching loss of current transformer and the loss of two motors.Common P
SWAnd P
MWTherefore only be worth all very for a short time, need absorb the test mission that seldom energy just can be finished high-power grade from electrical network, this device has energy-conservation function.
Claims (2)
1. energy mutual feedback formula bilinear induction motor operating mechanism test unit, it is characterized in that: this device comprises first line inductance electromotor (LIM-1), second line inductance electromotor (LIM-2), control module, inversion unit and communication unit; Control module comprises DSP control panel, IGBT drive plate, voltage sensor, current sensor and speed pickup;
Inversion unit comprises four quadrant convertor (REC), first inverter (INV-1), second inverter (INV-2), first electric capacity (C1) and second electric capacity (C2);
Communication unit comprises host computer and chip for driving;
The connection of this device: first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) are linked together by coupling spindle, and speed pickup is installed on the coupling spindle, and the output signal of speed pickup connects the input pin of DSP control panel; Line voltage inserts the input end of four quadrant convertor (REC), the output terminal of four quadrant convertor (REC) inserts first inverter (INV-1) input end through first electric capacity (C1), first inverter (INV-1) converts direct current to primary coil winding that alternating current inserts first line inductance electromotor (LIM-1), the alternating current that second line inductance electromotor (LIM-2) sends is imported second inverter (INV-2) and is rectified into direct current and feeds back to DC side through second electric capacity (C2), the input end of voltage sensor and current sensor all is connected to four quadrant convertor (REC), the outgoing side of first inverter (INV-1) and second inverter (INV-2), output terminal all is connected to the input pin of dsp chip; The input end of IGBT drive plate all links to each other with dsp chip pwm signal output pin, and output terminal is connected to the signal input end of four quadrant convertor (REC), first inverter (INV-1) and second inverter (INV-2); The communication interface of dsp chip is connected to host computer by chip for driving.
2. energy mutual feedback formula bilinear induction motor operating mechanism test unit according to claim 1 is characterized in that described first line inductance electromotor (LIM-1) and second line inductance electromotor (LIM-2) are the single-sided linear induction machine.
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CN2010205054325U CN201892727U (en) | 2010-08-26 | 2010-08-26 | Tester for control mechanism of reciprocal-energy-feed double-straight-line induction motor |
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CN2010205054325U CN201892727U (en) | 2010-08-26 | 2010-08-26 | Tester for control mechanism of reciprocal-energy-feed double-straight-line induction motor |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102004221A (en) * | 2010-08-26 | 2011-04-06 | 沈阳工业大学 | Reciprocal energy feeding test device for actuating mechanism of dual linear induction motors |
CN102957162A (en) * | 2011-08-18 | 2013-03-06 | 大连互联天下科技发展有限公司 | Control system for active power feedback energy saving device |
CN103398845A (en) * | 2013-08-13 | 2013-11-20 | 上海索达传动机械有限公司 | Durability experiment device |
CN106772046A (en) * | 2016-12-30 | 2017-05-31 | 贵州大学 | A kind of motor test complex under self-defined electric circumstance |
US11596968B2 (en) | 2017-02-24 | 2023-03-07 | Dürr Systems Ag | Applicator and application method |
-
2010
- 2010-08-26 CN CN2010205054325U patent/CN201892727U/en not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102004221A (en) * | 2010-08-26 | 2011-04-06 | 沈阳工业大学 | Reciprocal energy feeding test device for actuating mechanism of dual linear induction motors |
CN102957162A (en) * | 2011-08-18 | 2013-03-06 | 大连互联天下科技发展有限公司 | Control system for active power feedback energy saving device |
CN103398845A (en) * | 2013-08-13 | 2013-11-20 | 上海索达传动机械有限公司 | Durability experiment device |
CN106772046A (en) * | 2016-12-30 | 2017-05-31 | 贵州大学 | A kind of motor test complex under self-defined electric circumstance |
CN106772046B (en) * | 2016-12-30 | 2023-02-24 | 贵州大学 | Motor comprehensive test equipment under self-defined electrical environment |
US11596968B2 (en) | 2017-02-24 | 2023-03-07 | Dürr Systems Ag | Applicator and application method |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20130826 |