CN208385267U - A kind of high-voltage circuitbreaker electric operating mechanism of synchronously control - Google Patents
A kind of high-voltage circuitbreaker electric operating mechanism of synchronously control Download PDFInfo
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- CN208385267U CN208385267U CN201821002761.0U CN201821002761U CN208385267U CN 208385267 U CN208385267 U CN 208385267U CN 201821002761 U CN201821002761 U CN 201821002761U CN 208385267 U CN208385267 U CN 208385267U
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Abstract
A kind of high-voltage circuitbreaker electric operating mechanism of synchronously control, belongs to high voltage electric equipment control technology field.A kind of high-voltage circuitbreaker electric operating mechanism of synchronously control, including pressure regulator, low-voltage DC source unit, rectification energy-storage units, voltage detection unit, zero-crossing examination unit, main processor unit, isolation drive unit, inversion unit, permanent-magnet brushless DC electric machine, signal acquisition unit, transmission mechanism and breaker, the utility model passes through the cooperation of signal acquisition unit and zero-crossing examination unit, the phase of real-time detection network voltage and electric current, it effectively reduces switching overvoltage and shoves, extend switch service life.
Description
Technical field
The utility model relates to high voltage electric equipment control technology field, in particular to the high pressure open circuit of a kind of synchronously control
Device electric operating mechanism.
Background technique
With the deep development of China's intelligent power grid technology, reliability and intelligence of the electric system to high-voltage electrical equipment
Changing operation level, more stringent requirements are proposed.High-voltage circuitbreaker is responsible for protection as switchgear important in electric system
With the dual role of control circuit, performance quality be determine electric system safety work an important factor for one of.Open circuit
Device should be connected in normal operating conditions or cut-off load current, be in the failures shape such as overload, under-voltage, short-circuit in system again
Timely automated disengagement failure circuit under state, to realize the protective effect to electrical equipment and system itself.High-voltage circuit breaker,
Closing operation is to drive moving contact to complete by operating mechanism, and operating mechanism is the important component of breaker, performance it is good
The bad superiority and inferiority that will directly affect breaker allomeric function.In the case where operating mechanism does not use any control strategy, breaker
Switching on and off phase of operation be it is random, can not only cause to shove, switching overvoltage and will increase arc energy to arc-chutes
Ablation, in some instances it may even be possible to cause to cut-off short circuit current failure, cause more serious consequence.
Utility model content
Of the existing technology in order to solve the problems, such as, the utility model is by using signal acquisition unit and zero-crossing examination
The cooperation of unit, the phase of real-time detection network voltage and electric current, the accurate divide-shut brake phase for controlling breaker, and pass through main place
It manages device unit and issues control command, so that permanent-magnet brushless DC electric machine is connected with transmission mechanism and the moving contact of breaker is driven to transport
It is dynamic, it realizes that breaker closes a floodgate in voltage zero-cross, guarantees the key of target phase precision.
The utility model provides a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control, the height of the synchronously control
Voltage breaker electric operating mechanism includes pressure regulator, low-voltage DC source unit, rectification energy-storage units, voltage detection unit, mistake
Zero point detection unit, main processor unit, isolation drive unit, inversion unit, permanent-magnet brushless DC electric machine, signal acquisition list
Member, transmission mechanism and breaker；
The power input of the pressure regulator, low-voltage DC source unit and zero-crossing examination unit is all connected with alternating current, institute
The input terminal of the output end electrical connection rectification energy-storage units of pressure regulator is stated, the output end of the rectification energy-storage units is electrically connected
The output end of the first input end of voltage detection unit and inversion unit, the voltage detection unit and zero-crossing examination unit point
Not electricity Lian Jie main processor unit first input end and the second input terminal, the main processor unit output end electrical connection every
Input terminal from driving unit, the second input terminal of the output end electrical connection inversion unit of the isolation drive unit are described inverse
Become the three-phase windings of the output end electrical connection permanent-magnet brushless DC electric machine of unit, the output end electricity of the permanent-magnet brushless DC electric machine
The input terminal of connection signal acquisition unit, the permanent-magnet brushless DC electric machine are fixedly connected with transmission mechanism, the signal acquisition list
The third input terminal of the output end electrical connection main processor unit of member, the transmission mechanism connect contact of breaker end；
± 12V the pin of the low-voltage DC source unit is electrically connected the positive and negative anodes and zero crossing of signal acquisition unit
The positive and negative anodes of detection unit, the VCC pin of+3.3V pin electrical connection main processor unit of low-voltage DC source unit are described
The VCC pin of+15V pin electrical connection isolation drive the unit of low-voltage DC source unit, and the anode electricity of voltage detection unit
Connect+15V or+the 12V pin of low-voltage DC source unit, the cathode ground connection of voltage detection unit；
The signal acquisition unit includes Hall current sensor, hall position sensor, angular displacement sensor and rotation
The output end of encoder, the rotary encoder and angular displacement sensor is electrically connected main place as the output end of signal acquisition unit
The third input terminal of device unit is managed, the Hall current sensor is fixedly mounted on the three-phase coil of permanent-magnet brushless DC electric machine
Interior, the hall position sensor is fixedly mounted on the top end part of permanent-magnet brushless DC electric machine, the angular displacement sensor and rotation
Turn encoder and be fixedly mounted on permanent-magnet brushless DC electric machine main shaft coaxial position, and the outer wall of angular displacement sensor is socketed with rotation
Turn encoder, the rotor main shaft of the permanent-magnet brushless DC electric machine is fixedly connected with transmission mechanism.
The rectification energy-storage units include the first rectifier diode D1, the second rectifier diode D2, third rectifier diode
D3, the 4th rectifier diode D4 and energy-storage capacitor group C0 in parallel, it is whole that an output end of the pressure regulator is electrically connected to first
The cathode of diode D1 and the anode of third rectifier diode D3 are flowed, and to be electrically connected to second whole for the another output of pressure regulator
Flow the cathode of diode D2 and the anode of the 4th rectifier diode D4, the anode of the parallel connection energy-storage capacitor group C0 is connected to the
The junction of three rectifier diode D3 cathodes and the 4th rectifier diode D4 cathode, and the cathode of energy-storage capacitor group C0 in parallel connects
It is connected to the junction of the first rectifier diode D1 anode and the second rectifier diode D2 anode, the parallel connection energy-storage capacitor group C0
Positive and negative anodes as rectification energy-storage units the output end positive and negative anodes that are electrically connected voltage detection unit and inversion unit just
Cathode.
The zero-crossing examination unit includes resistance R11, current mode voltage transformer TV1013-1M, capacitor C7, capacitor
C8, resistance R12, adjustable resistance R13, resistance R14, adjustable resistance R15, resistance R20, resistance R21 and dual operational amplifier OP07,
The dual operational amplifier OP07 include the first operational amplifier OP07 and second operational amplifier OP07, the resistance R11 and
The input terminal of voltage transformer TV1013-1M is connected, and resistance R21 is parallel to the both ends of voltage transformer TV1013-1M output end,
One end of the capacitor C7 is electrically connected voltage transformer TV1013-1M output end, and the other end of capacitor C7 is connected to by R12
The negative pole end of first operational amplifier OP07, the both ends of the adjustable resistance R13 are electrically connected the first operational amplifier OP07
Negative pin and the first operational amplifier OP07 output end, one end of the adjustable resistance R15 is electrically connected the first operation amplifier
The positive pin of device OP07, and the negative pin of the other end electrical connection second operational amplifier OP07 of adjustable resistance R15, described first
The output end of operational amplifier OP07 is electrically connected the positive pin of second operational amplifier OP07, and capacitor C8 and resistance by R14
The other end after the negative pin of one end electrical connection second operational amplifier OP07 after R20 is in parallel, capacitor C8 and resistance R20 parallel connection
It is electrically connected the output end of second operational amplifier OP07, the output end of the second operational amplifier OP07 is electrically connected primary processor
Unit.
The main processor unit uses the dsp processor of model TMS320F28335, the dsp processor
ADCINA0 pin is electrically connected voltage detection unit, the pin of the ADCINA1~3 electrical connection Hall current sensing of the dsp processor
The detection circuit of device, the detection circuit of the ADCINA4 pin electrical connection angular displacement sensor of the dsp processor, at the DSP
Manage the detection circuit of the ADCINA5 pin electrical connection zero-crossing examination unit of device, the pin of XCAP1~3 electrical connection of dsp processor
The detection circuit of position hall position sensor, the speed inspection of the pin of the XCAP4~5 electrical connection rotary encoder of dsp processor
Slowdown monitoring circuit, the circuit of the pin of the PWM1~6 electrical connection isolation drive unit of dsp processor, the VCC pin of dsp processor are electrically connected
Connect+3.3V the pin of low-voltage DC source unit.
The inversion unit include first switch tube V1, second switch V2, third switching tube V3, the 4th switching tube V4,
5th switching tube V5, the 6th switching tube V6, the 5th sustained diode 5, the 6th sustained diode 6, the 7th sustained diode 7,
8th sustained diode 8, the 9th sustained diode 9, the tenth sustained diode 10, the 11st sustained diode the 11, the tenth
Two sustained diodes 12, the 13rd sustained diode 13, the 14th sustained diode 14, the 15th sustained diode 15,
16th sustained diode 16, the first buffer resistance R1, the second buffer resistance R2, third buffer resistance R3, the 4th buffer resistance
R4, the 5th buffer resistance R5, the 6th buffer resistance R6, the first Absorption Capacitance C1, the second Absorption Capacitance C2, third Absorption Capacitance
C3, the 4th Absorption Capacitance C4, the 5th Absorption Capacitance C5 and the 6th Absorption Capacitance C6；
Collector, the 5th freewheeling diode of the anode electrical connection first switch tube V1 of the parallel connection energy-storage capacitor group C0
The cathode of D5, one end of the first buffer resistance R1, the anode of the 11st sustained diode 11, third switching tube V3 collector,
The cathode of 7th sustained diode 7, one end of third buffer resistance R3, the anode of the 13rd sustained diode 13, the 5th open
Close the collector of pipe V5, the cathode of the 9th sustained diode 9, one end of the 5th buffer resistance R5 and the 15th freewheeling diode
The anode of D15, and the cathode of the 11st sustained diode 11 is connected in parallel on the other end of the first buffer resistance R1 and absorbs with first
One end of capacitor C1 is connected, and the cathode of the 13rd sustained diode 13 is connected in parallel on the other end of third buffer resistance R3 and with the
One end of three Absorption Capacitance C3 is connected, and the cathode of the 15th sustained diode 15 is connected in parallel on the another of the 5th buffer resistance R5
One end parallel connection is in parallel with the other end of the 5th Absorption Capacitance C5；
The cathode of the parallel connection energy-storage capacitor group C0 is electrically connected to the emitter of second switch V2, two pole of the 6th afterflow
The anode of pipe D6, one end of the second Absorption Capacitance C2, the emitter of the 4th switching tube V4, the 8th sustained diode 8 anode,
One end of 4th Absorption Capacitance C4, the emitter of the 6th freewheeling diode V6, the anode of the tenth sustained diode 10 and the 6th are inhaled
One end of capacitor C6, one end of the second buffer resistance R2 of other end series connection of the second Absorption Capacitance C2 are received, and the 12nd is continuous
Flow the second buffer resistance R2 of diode D12 parallel connection, the cathode of the 12nd sustained diode 12 and the second Absorption Capacitance C2 phase
Even, one end of the 4th buffer resistance R4 of other end series connection of one end of the 4th Absorption Capacitance C4, and the 14th afterflow two
Pole pipe D14 the 4th buffer resistance R4 of parallel connection, the cathode of the 14th sustained diode 14 are connected with the 4th Absorption Capacitance C4,
One end of the 6th buffer resistance R6 of other end series connection of the 6th Absorption Capacitance C6, and the 16th sustained diode 16 is in parallel
The cathode of 6th buffer resistance R6, the 16th sustained diode 16 are connected with the 4th Absorption Capacitance C6；
The emitter of the first switch tube V1 is electrically connected to the anode of the 5th sustained diode 5, the first Absorption Capacitance C1
The other end, the collector of second switch V2, the cathode of the 6th sustained diode 6, the second buffer resistance R2 the other end,
The anode of 12nd sustained diode 12 and the A phase of permanent-magnet brushless DC electric machine three-phase windings；
The emitter of the third switching tube V3 is electrically connected to the anode of the 7th sustained diode 7, third Absorption Capacitance C3
The other end, the collector of the 4th switching tube V4, the cathode of the 8th sustained diode 8, the 4th buffer resistance R4 the other end,
The anode of 14th sustained diode 14 and the B phase of permanent-magnet brushless DC electric machine three-phase windings；
The emitter of the 5th switching tube V5 is connected to the anode of the 9th sustained diode 9, the 5th Absorption Capacitance C5
The other end, the collector of the 6th switching tube V6, the cathode of the tenth sustained diode 10, the other end of the 6th buffer resistance R6,
The anode of 16 sustained diodes 16 and the C phase of permanent-magnet brushless DC electric machine three-phase windings.
Using the IGBT driving board DA962D7 of Unit six, the GND of the isolation drive unit draws the isolation drive unit
Foot the ground connection ,+15V pin of the VCC pin electrical connection low-voltage DC source unit of isolation drive unit, the isolation drive unit
The pin of Vi1~6 be electrically connected the pin of PWM1~6 of dsp processor in main processor unit, and isolation drive unit
The pin of Output1~6 is electrically connected the base stage of switching tube V1~V6 in inversion unit.
The utility model has the advantages that cooperation of the utility model by using signal acquisition unit and zero-crossing examination unit, is examined in real time
The phase of network voltage and electric current, the accurate divide-shut brake phase for controlling breaker are surveyed, and is issued and is controlled by main processor unit
Order, makes permanent-magnet brushless DC electric machine be connected with transmission mechanism and the moving contact of breaker is driven to move, and realizes breaker in electricity
Combined floodgate when pressing through zero, separating brake when current over-zero, ensure that the precision of target phase, effectively reduces the overvoltage of operation and gushes
Stream reduces the ablation of overvoltage and arc energy to arc-chutes, extends switch service life.
Detailed description of the invention
Fig. 1 is the structure of the high-voltage circuitbreaker electric operating mechanism of the synchronously control in specific embodiment of the present invention
Block diagram；
Fig. 2 is the circuit of the high-voltage circuitbreaker electric operating mechanism of the synchronously control in specific embodiment of the present invention
Connection figure；
Fig. 3 is the wiring diagram of the utility model mesolow DC power source unit；
Fig. 4 is the circuit diagram that energy-storage units are rectified in the utility model；
Fig. 5 is the circuit diagram of main processor unit in the utility model；
Fig. 6 is the circuit diagram of inversion unit in the utility model；
Fig. 7 is the circuit diagram that driving unit is isolated in the utility model；
Fig. 8 is the circuit diagram of rotor position detection unit in the utility model；
Fig. 9 is the circuit diagram of motor speed measurement unit in the utility model；
Figure 10 is the electric signal output waveform figure of rotary encoder in motor speed measurement unit in the utility model；
Figure 11 is the circuit diagram of motor three-phase windings current detecting unit in the utility model；
Figure 12 is the circuit diagram of Angular Displacement Detecting unit in the utility model；
Figure 13 is the circuit diagram of zero-crossing examination unit in the utility model；
Figure 14 is the timing diagram of synchronously control operation in the utility model.
In figure: 1, pressure regulator, 2, low-voltage DC source unit, 3, rectification energy-storage units, 4, voltage detection unit, 5, zero passage
Detection unit, 6, main processor unit, 7, isolation drive unit, 8, inversion unit, 9, permanent-magnet brushless DC electric machine, 10, signal
Acquisition unit, 1001, Hall current sensor, 1002, hall position sensor, 1003, angular displacement sensor, 1004, rotation
Encoder, 11, transmission mechanism, 12, breaker, 13, grating disc, 14, photosensitive element, 15, Hall element, 16, machine winding,
17, magnetic core.
Specific embodiment
Below in conjunction with the attached drawing in utility model embodiment, the technical solution in utility model embodiment is carried out clear
Chu is fully described by,
As shown in Figure 1, the utility model provides a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control, it is described same
The high-voltage circuitbreaker electric operating mechanism of step control includes pressure regulator 1, low-voltage DC source unit 2, rectification energy-storage units 3, electricity
Press detection unit 4, zero-crossing examination unit 5, main processor unit 6, isolation drive unit 7, inversion unit 8, brushless, permanently straight
Galvanic electricity machine 9, signal acquisition unit 10, transmission mechanism 11 and breaker 12；
As shown in Fig. 2, the pressure regulator 1, low-voltage DC source unit 2 and 5 power input of zero-crossing examination unit are equal
Alternating current is connected, the input terminal of the output end electrical connection rectification energy-storage units 3 of the pressure regulator 1 is described to rectify the defeated of energy-storage units 3
Outlet is electrically connected the first input end of voltage detection unit 4 and inversion unit 8, the voltage detection unit 4 and zero crossing
The output end of detection unit 5 is electrically connected the first input end and the second input terminal of main processor unit 6, the primary processor
The input terminal of the output end electrical connection isolation drive unit 7 of unit 6, the output end of the isolation drive unit 7 are electrically connected inversion
Second input terminal of unit 8, the three-phase windings of the output end electrical connection permanent-magnet brushless DC electric machine 9 of the inversion unit 8 are described
The input terminal of the output end electrical connection signal acquisition unit 10 of permanent-magnet brushless DC electric machine 9, the permanent-magnet brushless DC electric machine 9 are solid
Surely transmission mechanism 11, the third input terminal of the output end electrical connection main processor unit 6 of the signal acquisition unit 10, institute are connected
It states transmission mechanism 11 and connects 12 contact end of breaker；
As shown in figure 3, ± 12V the pin of the low-voltage DC source unit 2 is electrically connected signal acquisition unit 10
+ 3.3V the pin of the positive and negative anodes of positive and negative anodes and zero-crossing examination unit 5, low-voltage DC source unit 2 is electrically connected primary processor list
The VCC pin of member 6, the VCC pin of+15V pin electrical connection isolation drive unit 7 of the low-voltage DC source unit 2, and electricity
Press+15V or+the 12V pin of the anode electrical connection low-voltage DC source unit 2 of detection unit 4, the cathode of voltage detection unit 4
Ground connection；
The signal acquisition unit 10 includes Hall current sensor 1001, hall position sensor 1002, angular displacement biography
Sensor 1003 and rotary encoder 1004, the Hall current sensor 1001 are used to acquire the three of permanent-magnet brushless DC electric machine 9
Phase winding electric current, the hall position sensor 1002 are used to acquire the rotor-position of permanent-magnet brushless DC electric machine 9, the angle position
Displacement sensor 1003 is used to acquire the rotational angle of permanent-magnet brushless DC electric machine 9, and the rotary encoder 1004 is used to acquire forever
The output end of the revolving speed of magnetic brshless DC motor 9, the rotary encoder 1004 and angular displacement sensor 1003 is adopted as signal
Collect the third input terminal of the output end electrical connection main processor unit 6 of unit 10, the fixed peace of the Hall current sensor 1001
In the three-phase coil of permanent-magnet brushless DC electric machine 9, it is straight that the hall position sensor 1002 is fixedly mounted on brushless, permanently
The top end part of galvanic electricity machine 9, the angular displacement sensor 1003 and rotary encoder 1004 are fixedly mounted on DC permanent-magnetic brushless
9 main shaft coaxial position of motor, and the outer wall of angular displacement sensor 1003 is socketed with rotary encoder 1004, the brushless, permanently is straight
The rotor main shaft of galvanic electricity machine 9 is fixedly connected with transmission mechanism 11.
Specifically, as shown in figure 4, the rectification energy-storage units 3 include the first rectifier diode D1, the second two poles of rectification
Pipe D2, third rectifier diode D3, the 4th rectifier diode D4 and energy-storage capacitor group C0 in parallel, one of the pressure regulator 1
Output end is electrically connected to the cathode of the first rectifier diode D1 and the anode of third rectifier diode D3, and pressure regulator 1 is another
A output end is electrically connected to the cathode of the second rectifier diode D2 and the anode of the 4th rectifier diode D4, the parallel connection energy storage electricity
The anode of container group C0 is connected to the junction of third rectifier diode D3 cathode and the 4th rectifier diode D4 cathode, and in parallel
The cathode of energy-storage capacitor group C0 is connected to the junction of the first rectifier diode D1 anode and the second rectifier diode D2 anode,
After 1 pressure regulation of pressure regulator, rectified unit is rectified the alternating current, and the voltage after rectification is to energy-storage capacitor group C0 in parallel
Charging, and in this, as the energy that permanent-magnet brushless DC electric machine 9 rotates, the positive and negative anodes conduct of the parallel connection energy-storage capacitor group C0
The output end of rectification energy-storage units 3 is electrically connected the positive and negative anodes of voltage detection unit 4 and the positive and negative anodes of inversion unit 8.
Specifically, as shown in figure 5, the main processor unit 6 is handled using the DSP of model TMS320F28335
The ADCINA0 pin of device, the dsp processor is electrically connected voltage detection unit 4, and ADCINA1~3 of the dsp processor are drawn
Foot is electrically connected the detection circuit of Hall current sensor 1001, and the ADCINA4 pin electrical connection angular displacement of the dsp processor passes
The detection circuit of sensor 1004, the detection circuit of the ADCINA5 pin electrical connection zero-crossing examination unit 5 of the dsp processor,
The detection circuit of the pin electrically connecting position of the XCAP1 of dsp processor~3 hall position sensor 1002, dsp processor
The pin of XCAP4~5 be electrically connected rotary encoder 1004 velocity checking circuits, dsp processor the pin of PWM1~6 electrical connection every
Circuit from the driving unit 7 ,+3.3V pin of the VCC pin electrical connection low-voltage DC source unit 2 of dsp processor.
Specifically, as shown in fig. 6, the inversion unit 8 is opened including first switch tube V1, second switch V2, third
Close pipe V3, the 4th switching tube V4, the 5th switching tube V5, the 6th switching tube V6, the 5th sustained diode 5, the 6th freewheeling diode
D6, the 7th sustained diode 7, the 8th sustained diode 8, the 9th sustained diode 9, the tenth sustained diode the 10, the tenth
One sustained diode 11, the 12nd sustained diode 12, the 13rd sustained diode 13, the 14th sustained diode 14,
15th sustained diode 15, the 16th sustained diode 16, the first buffer resistance R1, the second buffer resistance R2, third are slow
Rush resistance R3, the 4th buffer resistance R4, the 5th buffer resistance R5, the 6th buffer resistance R6, the first Absorption Capacitance C1, the second absorption
Capacitor C2, third Absorption Capacitance C3, the 4th Absorption Capacitance C4, the 5th Absorption Capacitance C5 and the 6th Absorption Capacitance C6；
Collector, the 5th freewheeling diode of the anode electrical connection first switch tube V1 of the parallel connection energy-storage capacitor group C0
The cathode of D5, one end of the first buffer resistance R1, the anode of the 11st sustained diode 11, third switching tube V3 collector,
The cathode of 7th sustained diode 7, one end of third buffer resistance R3, the anode of the 13rd sustained diode 13, the 5th open
Close the collector of pipe V5, the cathode of the 9th sustained diode 9, one end of the 5th buffer resistance R5 and the 15th freewheeling diode
The anode of D15, and the cathode of the 11st sustained diode 11 is connected in parallel on the other end of the first buffer resistance R1 and absorbs with first
One end of capacitor C1 is connected, and the cathode of the 13rd sustained diode 13 is connected in parallel on the other end of third buffer resistance R3 and with the
One end of three Absorption Capacitance C3 is connected, and the cathode of the 15th sustained diode 15 is connected in parallel on the another of the 5th buffer resistance R5
One end parallel connection is in parallel with the other end of the 5th Absorption Capacitance C5；
The cathode of the parallel connection energy-storage capacitor group C0 is electrically connected to the emitter of second switch V2, two pole of the 6th afterflow
The anode of pipe D6, one end of the second Absorption Capacitance C2, the emitter of the 4th switching tube V4, the 8th sustained diode 8 anode,
One end of 4th Absorption Capacitance C4, the emitter of the 6th freewheeling diode V6, the anode of the tenth sustained diode 10 and the 6th are inhaled
One end of capacitor C6, one end of the second buffer resistance R2 of other end series connection of the second Absorption Capacitance C2 are received, and the 12nd is continuous
Flow the second buffer resistance R2 of diode D12 parallel connection, the cathode of the 12nd sustained diode 12 and the second Absorption Capacitance C2 phase
Even, one end of the 4th buffer resistance R4 of other end series connection of one end of the 4th Absorption Capacitance C4, and the 14th afterflow two
Pole pipe D14 the 4th buffer resistance R4 of parallel connection, the cathode of the 14th sustained diode 14 are connected with the 4th Absorption Capacitance C4,
One end of the 6th buffer resistance R6 of other end series connection of the 6th Absorption Capacitance C6, and the 16th sustained diode 16 is in parallel
The cathode of 6th buffer resistance R6, the 16th sustained diode 16 are connected with the 4th Absorption Capacitance C6；
The emitter of the first switch tube V1 is electrically connected to the anode of the 5th sustained diode 5, the first Absorption Capacitance C1
The other end, the collector of second switch V2, the cathode of the 6th sustained diode 6, the second buffer resistance R2 the other end,
The A phase of 9 three-phase windings of anode and permanent-magnet brushless DC electric machine of 12nd sustained diode 12；
The emitter of the third switching tube V3 is electrically connected to the anode of the 7th sustained diode 7, third Absorption Capacitance C3
The other end, the collector of the 4th switching tube V4, the cathode of the 8th sustained diode 8, the 4th buffer resistance R4 the other end,
The B phase of 9 three-phase windings of anode and permanent-magnet brushless DC electric machine of 14th sustained diode 14；
The emitter of the 5th switching tube V5 is connected to the anode of the 9th sustained diode 9, the 5th Absorption Capacitance C5
The other end, the collector of the 6th switching tube V6, the cathode of the tenth sustained diode 10, the other end of the 6th buffer resistance R6,
The C phase of 9 three-phase windings of anode and permanent-magnet brushless DC electric machine of 16 sustained diodes 16.
Specifically, as shown in fig. 7, the isolation drive unit 7 using Unit six IGBT driving board DA962D6, and
Boost operations are carried out to the pwm signal of the dsp processor in main processor unit 6, realize effective on and off to IGBT,
The GND pin of the isolation drive unit 7 is grounded, and the VCC pin of isolation drive unit 7 is electrically connected low-voltage DC source unit 2
+ 15V pin, the pin of Vi1~6 of the isolation drive unit 7 is electrically connected dsp processor in main processor unit 6
The pin of PWM1~6, and the pin of the Output1 of isolation drive unit 7~6 is electrically connected switching tube V1~V6 in inversion unit 8
Base stage, obtain good rise and fall along wave, realize the driving of IGBT full-bridge circuit.
Specifically, Fig. 8 is for acquiring the hall position sensor 1002 of 9 rotor-position of permanent-magnet brushless DC electric machine
Detection circuit, detection circuit include rotor 3 Hall elements, magnet steel, negate unit 74HC14 and voltage conversion unit
74CBTD3384, the hall signal of the Hall element output end output are electrically connected 74HC14 and negate 1 pin of unit, 5
Pin and 10 pins, and 74HC14 negates the 2 pins electrical connection 74HC14 of unit and negates 3 pins of unit, 74HC14 negates list
The 6 pins electrical connection 74HC14 of member negates 8 pins of unit, and the 11 pins electrical connection 74HC14 that 74HC14 negates unit negates list
12 pins of member, 74HC14 negate the+5V pin of the 14 pins electrical connection low-voltage DC source unit 2 of unit, the 74HC14
2 pins of the 4 pins electrical connection 74CBTD3384 voltage conversion unit of unit are negated, 9 pins that 74HC14 negates unit are electrically connected
5 pins of 74CBTD3384 voltage conversion unit are connect, the 13 pins electrical connection 74CBTD3384 voltage that 74HC14 negates unit turns
6 pins of unit are changed, dsp processor in the 3 pins electrical connection main processor unit 6 of 74CBTD3384 voltage conversion unit
XCAP2 pin, 4 pins of 74CBTD3384 voltage conversion unit are electrically connected the XCAP1 of dsp processor in main processor unit 6
7 pins of pin, 74CBTD3384 voltage conversion unit are connected to the XCAP3 pin of dsp processor in main processor unit 6.
Wherein 74HC14 negates the reversion that unit carries out low and high level twice as Hall output signal, export for+5V high level and
The low level of 0V, and the high level of the 74HC14+5V for negating unit output is converted to place by 74CBTD3384 voltage conversion unit
Manage the high level of the acceptable+3.3V of dsp processor in device unit 6.
Specifically, Fig. 9 is the circuit diagram for acquiring the rotary encoder 1003 of 9 revolving speed of permanent-magnet brushless DC electric machine,
Wherein rotary encoder 1003 selects the photoelectricity rotation of Omron Corp E6B2-CWZ6C model 2000P/R photoelectric encoder
Encoder carries out the measurement of driving motor revolving speed, and rotary encoder 1003 is by grating disc 13, photosensitive element 14 and Photoelectric Detection electricity
Road composition, Figure 10 are the electric signal output waveform figure of rotary encoder 1003, and the output end signal of the waveform diagram has a-signal, B
The pulse signal that signal and Z signal, the a-signal and B signal are two groups 90 ° of phase phase difference, when 1003 up time of rotary encoder
When needle rotates, a-signal is ahead of B signal, therefore can judge rotary encoder according to a-signal and B signal phase is judged
1003 direction of rotation, similarly, since a-signal and B signal differ 90 degree, so can be by comparing a-signal in preceding or B signal
In the forward and reverse for coming to differentiate rotary encoder 1003, the Z signal is the reference signal that phase pulse is zero-bit, that is, is passed through
Zero pulse can get the zero reference position of rotary encoder 1003, when rotary encoder 1003 often rotates a circle, Z signal
Pulse signal state changes the initial state that once can be used for adjusting the movement of rotary encoder 1003.The signal of output connects
To XCAP4 the and XCAP5 pin of the dsp processor of main processor unit 6.
Specifically, Figure 11 is the Hall current sensor for acquiring 9 three-phase windings electric current of permanent-magnet brushless DC electric machine
1001 circuit diagram, the model CHF-400B of the Hall current sensor 1001, the Hall current sensor 1001 are
It is made of Hall element 15, machine winding 16, magnetic core 17 and three winding current detection circuits
The input and output ratio of the Hall current sensor 1001 of the model CHF-400B is 100:1, that is, works as winding
The output voltage of Hall current sensor 1001 is 1V when electric current is 100A, this circuit maximum detection amount is the direct current of 400V
Pressure makes the Hall current sensor 1001 have response to meet the design requirement of 9 winding current of permanent-magnet brushless DC electric machine
The features such as time is fast, the linearity is small, the Hall current sensor 1001 altogether there are three, be respectively intended to survey permanent-magnet brushless DC electric machine
9 three-phase windings electric current, and the output end of Hall current sensor 1001 is separately connected dsp processor in main processor unit 6
ADCINA1~3.
Specifically, Figure 12 is for acquiring the angular displacement sensor 1004 of 9 rotational angle of permanent-magnet brushless DC electric machine
Circuit diagram, the model of the angular displacement sensor 1004 is WDD35D4, and the 1 pin electrical connection of angular displacement sensor 1004 is low
Press+5V the pin of DC power source unit 2, and the 3 pins ground connection of angular displacement sensor 1004.
Specifically, Figure 13 is the circuit diagram of zero-crossing examination unit 5, zero-crossing examination unit 5 includes resistance R11, electricity
Flow pattern voltage transformer TV1013-1M, capacitor C7, capacitor C8, resistance R12, adjustable resistance R13, resistance R14, adjustable resistance
R15, resistance R20, resistance R21 and dual operational amplifier OP07, the dual operational amplifier OP07 include the first operational amplifier
The series connection of the input terminal of OP07 and second operational amplifier OP07, the resistance R11 and voltage transformer TV1013-1M, resistance R21
The both ends of voltage transformer TV1013-1M output end are parallel to, one end of the capacitor C7 is electrically connected voltage transformer TV1013-
1M output end, and the other end of capacitor C7 is connected to the negative pole end of the first operational amplifier OP07, the adjustable resistance by R12
The both ends of R13 are electrically connected the negative pin of the first operational amplifier OP07 and the output end of the first operational amplifier OP07, institute
The one end for stating adjustable resistance R15 is electrically connected the positive pin of the first operational amplifier OP07, and the other end of adjustable resistance R15 is electrically connected
The negative pin of second operational amplifier OP07 is connect, the output end of the first operational amplifier OP07 passes through R14 electrical connection second
The positive pin of operational amplifier OP07, and one end after capacitor C8 and resistance R20 parallel connection is electrically connected second operational amplifier OP07
Negative pin, capacitor C8 and resistance R20 it is in parallel after other end electrical connection second operational amplifier OP07 output end, described the
The output end of two operational amplifier OP07 is electrically connected main processor unit 6, and external 220V AC power source amplitude is scaled
Into main processor unit 6 in 0~3.3V of reception voltage range of dsp processor, output signal is connected to the ADCINA5 of DSP
Pin, signal frequency is still 50Hz, and the zero-crossing examination unit 5 is completed for obtaining high quality power grid zero cross signal
The operation of breaker phased switch, and the key for reducing phase selection operating error, guaranteeing target phase precision.
Specifically, the timing diagram of synchronously control operation is as shown in figure 14, the signal that the breaker 12 is closed or cut-off
It is issued at 0 moment, main processor unit 6 determines target phase moment t by acquisition network voltage or current signalm, wherein mesh
Marking the time used in phase calculation is Tf, control command signal is issued later, by delay time TdTriggering transmission mechanism 11 is dynamic afterwards
Make, using 12 closing time T of breakercOr opening time ToAfter make dynamic/static contact the target phase moment contact or separate, institute
Electric arc can be generated in separating brake by stating breaker 12, and the arcing time is Tarc, it is finally completed the phased conjunction point of breaker 12
Lock operation.
The control method of the high-voltage circuitbreaker electric operating mechanism of synchronously control in the utility model includes:
Step 1, alternating current pass through the first rectifier diode D1 in pressure regulator 1 and rectification energy-storage units 3, the second two poles of rectification
Pipe D2, third rectifier diode D3 and the 4th rectified current pole pipe D4 are rectified, and pass through in rectification energy-storage units 3 and Federal Reserve
Energy capacitor group C0 carries out energy storage, meanwhile, alternating current provides low-pressure direct to main processor unit 6 by low-voltage DC source unit 1
Galvanic electricity pressure；
Step 2, alternating current by 5 real-time monitoring network voltage of zero-crossing examination unit, electric current zero crossing and feed back to master
Processor unit 6；
Step 3, main processor unit 6 issue pwm signal and control the conducting of IGBT driving board through isolation drive unit 7；
Step 4, after IGBT driving board conducting, residual charge is absorbed by inversion unit 8, and storage capacitor is put
Electricity；
Step 5, inversion unit 8 control permanent-magnet brushless DC electric machine 9 and start turning, and the breaker 12 is closed or cut-off
Signal issues at the O moment, and as shown in figure 14, main processor unit 6 determines target phase by acquisition network voltage or current signal
Position moment tm, wherein the target phase calculating time used is Tf, issues control command signal later, touches after delay time Td
It sends out transmission mechanism 11 to act, using making dynamic/static contact in target phase after breaker 12 closing time Tc or opening time To
Contact or separation are carved, while permanent-magnet brushless DC electric machine 9 is run, Hall current sensor 1001 adopts winding current
Collection detection, hall position sensor 1002 are acquired detection to motor rotation position, and angular displacement sensor 1003 is to motor
Rotational angle is acquired detection, and rotary encoder 1004 is acquired detection to the velocity of rotation of motor, by acquisition testing
Multi signal feeds back to main processor unit 6, for adjusting the revolving speed of permanent-magnet brushless DC electric machine 9 and leading for control switch pipe in real time
Logical and closing, the breaker 12 can generate electric arc in separating brake, and the arcing time is Tarc, be finally completed breaker
Phase control closing or sub-switching operation.
Working principle: the utility model gives energy-storage capacitor group C0 energy storage in parallel through pressure regulator 1, stream device bridge by alternating current,
Low-voltage dc voltage is provided to main processor unit 6 by low-voltage DC source unit 1 simultaneously.Divide, close when providing breaker 12
When lock operational order, by 5 real-time detection network voltage of zero-crossing examination unit, electric current zero crossing and feed back to primary processor
Unit 6 accurately controls the divide-shut brake phase of breaker 12, and the dsp processor in main processor unit 6 issues two-way pwm signal
The conducting of IGBT is controlled through isolation drive unit 7, storage capacitor discharges, and the countless direct current generators 9 of permanent magnetism start turning.It is transporting
When row, Hall current sensor 1001 is acquired detection, hall position sensor 1002 to winding current and rotates position to motor
It sets and is acquired that detection, angular displacement sensor 1003 is acquired detection to the rotational angle of motor and rotary encoder 1004 is right
The velocity of rotation of motor is acquired detection, and the signal of acquisition testing is fed back to main processor unit 6, is used to adjust in real time forever
The conducting and closing of the revolving speed and control switch pipe of magnetic brshless DC motor 9.
Claims (6)
1. a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control, it is characterised in that: the high pressure open circuit of the synchronously control
Device electric operating mechanism includes pressure regulator (1), low-voltage DC source unit (2), rectification energy-storage units (3), voltage detection unit
(4), zero-crossing examination unit (5), main processor unit (6), isolation drive unit (7), inversion unit (8), brushless, permanently are straight
Galvanic electricity machine (9), signal acquisition unit (10), transmission mechanism (11) and breaker (12)；
The power input of the pressure regulator (1), low-voltage DC source unit (2) and zero-crossing examination unit (5) is all connected with city
Electricity, the input terminal of output end electrical connection rectification energy-storage units (3) of the pressure regulator (1) are described to rectify the defeated of energy-storage units (3)
Outlet is electrically connected voltage detection unit (4) and inversion unit (8) first input end, the voltage detection unit (4) and mistake
The output end of zero point detection unit (5) is electrically connected the first input end and the second input terminal of main processor unit (6), described
Main processor unit (6) output end electrical connection isolation drive unit (7) input terminal, the isolation drive unit (7) it is defeated
Outlet is electrically connected second input terminal of inversion unit (8), and the output end of the inversion unit (8) is electrically connected permanent magnet brushless dc
The three-phase windings of machine (9), the input of output end electrical connection signal acquisition unit (10) of the permanent-magnet brushless DC electric machine (9)
End, the permanent-magnet brushless DC electric machine (9) are fixedly connected transmission mechanism (11), the output end of the signal acquisition unit (10)
It is electrically connected the third input terminal of main processor unit (6), the transmission mechanism (11) connects breaker (12) contact end；
± 12V the pin of the low-voltage DC source unit (2) is electrically connected the positive and negative anodes and mistake of signal acquisition unit (10)
The positive and negative anodes of zero point detection unit (5) ,+3.3V pin electrical connection main processor unit (6) of low-voltage DC source unit (2)
VCC pin, the VCC pin of+15V pin electrical connection isolation drive unit (7) of the low-voltage DC source unit (2), and electricity
Press+15V or+the 12V pin of anode electrical connection low-voltage DC source unit (2) of detection unit (4), voltage detection unit (4)
Cathode ground connection；
The signal acquisition unit (10) includes Hall current sensor (1001), hall position sensor (1002), angular displacement
Sensor (1003) and rotary encoder (1004), the output of the rotary encoder (1004) and angular displacement sensor (1003)
Hold the third input terminal of output end electrical connection main processor unit (6) as signal acquisition unit (10), the Hall current
Sensor (1001) is fixedly mounted in the three-phase coil of permanent-magnet brushless DC electric machine (9), the hall position sensor
(1002) top of permanent-magnet brushless DC electric machine (9), the angular displacement sensor (1003) and rotary encoder are fixedly mounted on
(1004) permanent-magnet brushless DC electric machine (9) main shaft coaxial position, and the outer wall of angular displacement sensor (1003) are fixedly mounted on
It is socketed with rotary encoder (1004), the rotor main shaft of the permanent-magnet brushless DC electric machine (9) is fixedly connected with transmission mechanism (11).
2. a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control according to claim 1, which is characterized in that described
Rectify energy-storage units (3) include the first rectifier diode D1, it is the second rectifier diode D2, third rectifier diode D3, the 4th whole
Diode D4 and energy-storage capacitor group C0 in parallel are flowed, an output end of the pressure regulator (1) is electrically connected to two pole of the first rectification
The cathode of pipe D1 and the anode of third rectifier diode D3, and the another output of pressure regulator (1) is electrically connected to the second rectification
The anode of the anode of the cathode of diode D2 and the 4th rectifier diode D4, the parallel connection energy-storage capacitor group C0 is connected to third
The junction of rectifier diode D3 cathode and the 4th rectifier diode D4 cathode, and the cathode connection of energy-storage capacitor group C0 in parallel
To the junction of the first rectifier diode D1 anode and the second rectifier diode D2 anode, the parallel connection energy-storage capacitor group C0's
Positive and negative anodes are electrically connected the positive and negative anodes and inversion unit of voltage detection unit (4) as the output end of rectification energy-storage units (3)
(8) positive and negative anodes.
3. a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control according to claim 2, which is characterized in that described
Zero-crossing examination unit (5) include resistance R11, current mode voltage transformer TV1013-1M, capacitor C7, capacitor C8, resistance R12,
Adjustable resistance R13, resistance R14, adjustable resistance R15, resistance R20, resistance R21 and dual operational amplifier OP07, double operations
Amplifier OP07 includes the first operational amplifier OP07 and second operational amplifier OP07, the resistance R11 and voltage transformer
The input terminal of TV1013-1M is connected, and resistance R21 is parallel to the both ends of voltage transformer TV1013-1M output end, the capacitor C7
One end be electrically connected voltage transformer TV1013-1M output end, and the other end of capacitor C7 is connected to the first operation by R12 and puts
The negative pole end of big device OP07, the both ends of the adjustable resistance R13 be electrically connected the first operational amplifier OP07 negative pin and
One end of the output end of first operational amplifier OP07, the adjustable resistance R15 is being electrically connected the first operational amplifier OP07 just
Pin, and the negative pin of the other end electrical connection second operational amplifier OP07 of adjustable resistance R15, first operational amplifier
After the output end of OP07 is electrically connected the positive pin of second operational amplifier OP07 by R14, and capacitor C8 and resistance R20 are in parallel
Other end electrical connection second after the negative pin of one end electrical connection second operational amplifier OP07, capacitor C8 and resistance R20 parallel connection
The output end of the output end of operational amplifier OP07, the second operational amplifier OP07 is electrically connected main processor unit (6).
4. a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control according to claim 3, which is characterized in that described
Main processor unit (6) uses the dsp processor of model TMS320F28335, the ADCINA0 pin electricity of the dsp processor
It connects voltage detection unit (4), the pin of ADCINA1~3 electrical connection Hall current sensor (1001) of the dsp processor
Detection circuit, the detection circuit of ADCINA4 pin electrical connection angular displacement sensor (1003) of the dsp processor, the DSP
The detection circuit of ADCINA5 pin electrical connection zero-crossing examination unit (5) of processor, the pin of XCAP1~3 of dsp processor
The pin of the XCAP4~5 electrical connection rotation of the detection circuit of electrically connecting position hall position sensor (1002), dsp processor is compiled
The velocity checking circuits of code device (1004), the circuit of the pin of PWM1~6 electrical connection isolation drive unit (7) of dsp processor,
+ 3.3V the pin of VCC pin electrical connection low-voltage DC source unit (2) of dsp processor.
5. a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control according to claim 4, which is characterized in that described
Inversion unit (8) includes first switch tube V1, second switch V2, third switching tube V3, the 4th switching tube V4, the 5th switching tube
V5, the 6th switching tube V6, the 5th sustained diode 5, the 6th sustained diode 6, the 7th sustained diode 7, the 8th afterflow two
Pole pipe D8, the 9th sustained diode 9, the tenth sustained diode 10, the 11st sustained diode 11, two pole of the 12nd afterflow
Pipe D12, the 13rd sustained diode 13, the 14th sustained diode 14, the 15th sustained diode 15, the 16th afterflow
Diode D16, the first buffer resistance R1, the second buffer resistance R2, third buffer resistance R3, the 4th buffer resistance R4, the 5th delay
Rush resistance R5, the 6th buffer resistance R6, the first Absorption Capacitance C1, the second Absorption Capacitance C2, third Absorption Capacitance C3, the 4th absorption
Capacitor C4, the 5th Absorption Capacitance C5 and the 6th Absorption Capacitance C6；
The collector of the anode electrical connection first switch tube V1 of the parallel connection energy-storage capacitor group C0, the 5th sustained diode 5
Cathode, one end of the first buffer resistance R1, the anode of the 11st sustained diode 11, the collector of third switching tube V3, the 7th
The cathode of sustained diode 7, one end of third buffer resistance R3, the 13rd sustained diode 13 anode, the 5th switching tube
The collector of V5, the cathode of the 9th sustained diode 9, one end of the 5th buffer resistance R5 and the 15th sustained diode 15
Anode, and the cathode of the 11st sustained diode 11 be connected in parallel on the first buffer resistance R1 the other end and with the first Absorption Capacitance
One end of C1 is connected, and the cathode of the 13rd sustained diode 13 is connected in parallel on the other end of third buffer resistance R3 and inhales with third
One end series connection of capacitor C3 is received, the cathode of the 15th sustained diode 15 is connected in parallel on the other end of the 5th buffer resistance R5
It is in parallel in parallel with the other end of the 5th Absorption Capacitance C5；
The cathode of the parallel connection energy-storage capacitor group C0 is electrically connected to the emitter of second switch V2, the 6th sustained diode 6
Anode, one end of the second Absorption Capacitance C2, the emitter of the 4th switching tube V4, the anode of the 8th sustained diode 8, the 4th
One end of Absorption Capacitance C4, the emitter of the 6th freewheeling diode V6, the anode of the tenth sustained diode 10 and the 6th absorb electricity
Hold one end of C6, one end of the second buffer resistance R2 of other end series connection of the second Absorption Capacitance C2, and the 12nd afterflow two
Pole pipe D12 the second buffer resistance R2 of parallel connection, the cathode of the 12nd sustained diode 12 are connected with the second Absorption Capacitance C2,
One end of the 4th buffer resistance R4 of other end series connection of one end of the 4th Absorption Capacitance C4, and the 14th freewheeling diode
D14 the 4th buffer resistance R4 of parallel connection, the cathode of the 14th sustained diode 14 is connected with the 4th Absorption Capacitance C4, described
One end of the 6th buffer resistance R6 of other end series connection of 6th Absorption Capacitance C6, and 16 parallel connection the 6th of the 16th sustained diode
Buffer resistance R6, the cathode of the 16th sustained diode 16 are connected with the 4th Absorption Capacitance C6；
The emitter of the first switch tube V1 be electrically connected to the anode of the 5th sustained diode 5, the first Absorption Capacitance C1 it is another
One end, the collector of second switch V2, the cathode of the 6th sustained diode 6, the other end of the second buffer resistance R2, the tenth
The anode of two sustained diodes 12 and the A phase of permanent-magnet brushless DC electric machine (9) three-phase windings；
The emitter of the third switching tube V3 be electrically connected to the anode of the 7th sustained diode 7, third Absorption Capacitance C3 it is another
One end, the collector of the 4th switching tube V4, the cathode of the 8th sustained diode 8, the other end of the 4th buffer resistance R4, the tenth
The anode of four sustained diodes 14 and the B phase of permanent-magnet brushless DC electric machine (9) three-phase windings；
The emitter of the 5th switching tube V5 be connected to the anode of the 9th sustained diode 9, the 5th Absorption Capacitance C5 it is another
End, the collector of the 6th switching tube V6, the cathode of the tenth sustained diode 10, the other end of the 6th buffer resistance R6, the 16th
The C phase of anode and permanent-magnet brushless DC electric machine (9) three-phase windings of sustained diode 16.
6. a kind of high-voltage circuitbreaker electric operating mechanism of synchronously control according to claim 5, which is characterized in that described
Isolation drive unit (7) uses the IGBT driving board DA962D7 of Unit six, and the GND pin of the isolation drive unit (7) connects
The ground ,+15V pin of VCC pin electrical connection low-voltage DC source unit (2) of isolation drive unit (7), the isolation drive list
The pin of Vi1~6 of first (7) is electrically connected the pin of PWM1~6 of dsp processor in main processor unit (6), and isolation drive
The pin of Output1~6 of unit (7) is electrically connected the base stage of switching tube V1~V6 in inversion unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002761.0U CN208385267U (en) | 2018-06-27 | 2018-06-27 | A kind of high-voltage circuitbreaker electric operating mechanism of synchronously control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002761.0U CN208385267U (en) | 2018-06-27 | 2018-06-27 | A kind of high-voltage circuitbreaker electric operating mechanism of synchronously control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735538A (en) * | 2018-06-27 | 2018-11-02 | 沈阳工业大学 | A kind of the high-voltage circuitbreaker electric operating mechanism and its control method of synchronous control |
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2018
- 2018-06-27 CN CN201821002761.0U patent/CN208385267U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735538A (en) * | 2018-06-27 | 2018-11-02 | 沈阳工业大学 | A kind of the high-voltage circuitbreaker electric operating mechanism and its control method of synchronous control |
| CN108735538B (en) * | 2018-06-27 | 2023-08-29 | 沈阳工业大学 | Synchronous control motor operating mechanism of high-voltage circuit breaker and control method thereof |
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