CN104122431A - Current and voltage sensor integrated box and motor parameter real-time acquisition apparatus and method with same - Google Patents
Current and voltage sensor integrated box and motor parameter real-time acquisition apparatus and method with same Download PDFInfo
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- CN104122431A CN104122431A CN201410333792.4A CN201410333792A CN104122431A CN 104122431 A CN104122431 A CN 104122431A CN 201410333792 A CN201410333792 A CN 201410333792A CN 104122431 A CN104122431 A CN 104122431A
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Abstract
The invention discloses a current and voltage sensor integrated box and a motor parameter real-time acquisition apparatus and method with the same. The motor parameter real-time acquisition apparatus also comprises a power supply module, a torque and speed sensor module and an AppSIM simulation platform; the power supply module is connected with a three-phase four-wire input end of the current and voltage sensor integrated box, a three-phase four-wire output end of the current and voltage sensor integrated box is connected with a stator winding of a motor, the torque and speed sensor module is connected with a rotor of the motor, and the AppSIM simulation platform is connected with the current and voltage sensor integrated box and the torque and speed sensor module respectively. The motor parameter real-time acquisition apparatus is used for the real-time acquisition, storage and display of three-way voltage and three-way current signals output by the current and voltage sensor integrated box as well as for the output of speed signals and torque signals output by the torque and speed sensor module. According to the current and voltage sensor integrated box and the motor parameter real-time acquisition apparatus and method with the same, the real-time acquisition, analysis, processing, online display and dynamic storage of motor parameters can be achieved, and good real-time performance and stability are obtained.
Description
Technical field
The invention belongs to parameter of electric machine Real-time Collection field, relate in particular to a kind of current/voltage sensor integral box, and include parameter of electric machine real-time acquisition device and the acquisition method of current/voltage sensor integral box.
Background technology
Motor is the visual plant of commercial production application, is also the core component of automatic control system simultaneously.By judging to the analysis of motor voltage, current signal whether motor occurs the faults such as single-phase short circuit, stator winding inter-turn short circuit.Therefore the operating condition of motor is carried out to monitoring in real time and seem particularly important.
Traditional parameter of electric machine collection is that staff is by adopting conventional electrical instrument manually to read, record, analyze the parameter of electric machine.The method work is loaded down with trivial details and efficiency is very low.First due to the non-simultaneity of meter reading and institute's read data instantaneous value not necessarily, so system does not possess the real-time of monitoring.Secondly scene does not have interference protection measure, and gained signal noise is larger, and does not possess the ability of real-time analysis data, so system does not possess the accuracy of monitoring.The more important thing is, the method security is difficult to guarantee, if measure the parameter of electric machine of high voltage, large electric current, may threaten to staff's safety.How real-time, accurate, the safe collection parameter of electric machine becomes one of current assistant officer problem to be solved.
Summary of the invention
The object of this invention is to provide a kind of integrated current/voltage sensor integral box, object of the present invention also comprise provide can the Real-time Collection parameter of electric machine a kind of parameter of electric machine real-time acquisition device that includes current/voltage sensor integral box, object of the present invention also comprises a kind of parameter of electric machine real-time collecting method.
The present invention is achieved by the following technical solutions:
A current/voltage sensor integral box, comprises casing, has 12V Switching Power Supply, 15V Switching Power Supply, blower module and current/voltage sensor group in casing,
The positive source of blower module connects the output cathode of 12V Switching Power Supply, the earth terminal of the ground connection termination 12V Switching Power Supply of blower module;
Current/voltage sensor group comprises three voltage sensors, three current sensors and three-phase and four-line cable, the negative pole of the voltage input end of each voltage sensor all connects the earth terminal of three-phase and four-line cable, in the three-phase of three-phase and four-line cable one is connected with the positive pole of the voltage input end of a voltage sensor respectively mutually, the power positive end of each voltage sensor is all connected with the output cathode of 12V Switching Power Supply, the output terminal of each voltage sensor connects respectively the earth terminal that then 100 Ω resistance receive 12V Switching Power Supply, the power-of each voltage sensor is extremely connected with the output negative pole of 12V Switching Power Supply, the output terminal of three voltage sensors is exported three tunnel measuring voltages,
In the three-phase of three-phase and four-line cable one is connected with the input end of a current sensor respectively mutually, the power positive end of each current sensor is connected with the output cathode of 15V Switching Power Supply, the power-of each current sensor is extremely connected with the output negative pole of 15V Switching Power Supply, the earth terminal of each current sensor be connected with the earth terminal of 15V Switching Power Supply, the output terminal of three current sensors is exported three drive test amount electric currents.
A kind of current/voltage sensor integral box also comprises:
The number of current/voltage sensor group is two, and the inside of two current/voltage sensor groups connects identical, and two current/voltage sensor groups are connected on a 12V Switching Power Supply, a 15V Switching Power Supply and a blower module in an identical manner jointly.
A kind of parameter of electric machine real-time acquisition device that comprises current/voltage sensor integral box, also comprise power module, torque rotary speed sensor module and AppSIM emulation platform, power module is connected with the three-phase and four-line input end of current/voltage sensor integral box by three-phase and four-line, the three-phase and four-line output terminal of current/voltage sensor integral box is connected with the stator winding of motor by three-phase and four-line, torque rotary speed sensor module is connected with the rotor of motor, AppSIM emulation platform is connected with torque rotary speed sensor module with current/voltage sensor integral box respectively, for Real-time Collection, store and show the dtc signal of current/voltage sensor integral box output San road voltage He San road current signal and output speed signal and the output of torque rotary speed sensor module.
A kind ofly comprise that the parameter of electric machine real-time acquisition device of current/voltage sensor integral box can also comprise:
1, torque rotary speed sensor module comprises torque sensor CYT-302, intelligence isolation distributor XFPD-D155D and 24V power supply, the pin one of torque sensor CYT-302 is connected with the pin two of intelligent isolation distributor XFPD-D155D, the pin two of torque sensor CYT-302 is connected with the pin 6 of intelligent isolation distributor XFPD-D155D, the pin 3 of torque sensor CYT-302 and the output cathode of 24V power supply, the pin 3 of intelligence isolation distributor XFPD-D155D, pin 7, pin one 6 connects, the pin 4 of torque sensor CYT-302 and the earth terminal of 24V power supply, the pin one of intelligence isolation distributor XFPD-D155D, pin 5, pin one 4, pin 5 is connected, pin 9 and the pin one 1 of intelligence isolation distributor XFPD-D155D are signal output pin.
2, AppSIM emulation platform comprises signaling interface case, real-time simulator and host computer, current/voltage sensor integral box sends electric current and voltage signal to signaling interface case, torque rotary speed sensor module sends Torque and speed signal to signaling interface case, signaling interface case sends Output rusults to real-time simulator, real-time simulator, according to receiving to such an extent that information is analyzed, sends result to host computer.
A parameter of electric machine real-time collecting method that comprises current/voltage sensor integral box, comprises following step:
Step 1: current/voltage sensor integral box is measured electric current and the voltage signal of motor, torque rotary speed sensor module is measured the torque and rotational speed signal of motor;
Step 2: the real-time simulator of AppSIM emulation platform drives the board of interface box to gather electric current, voltage, torque and rotational speed signal;
Step 3: in real-time simulator, the signal collecting is carried out to filtering processing, and the signal collecting is converted into motor actual parameter signal, motor actual parameter signal is stored simultaneously;
Step 4: real-time simulator sends motor actual parameter signal to host computer and shows in real time.
Beneficial effect of the present invention is:
This device belongs to online acquisition based on APPSIM platform to parameter of electric machine collection, platform adopts QNX hard real time operating system, and simulation step length can reach Microsecond grade, compares off-line collection, this device has good real-time effect, can to system condition, monitor in real time; Compare by other online acquisition methods such as DSP or virtual instruments, system platform that this device adopts is integrated perfect, interface board is sufficient, collection analog and digital signal that can real time high-speed, model program is write succinct convenience simultaneously, support the online ginseng function of adjusting, can to the parameter of electric machine, carry out on-line monitoring easily;
Based on AppSIM platform, realize the Real-time Collection of data, analyzing and processing, show online and dynamic memory.AppSIM is that this platform model is succinct, easy to use based on Matlab/Simulink pattern development platform; Real-time simulator support model in platform is cut apart and multi-core CPU parallel computation simultaneously, and system stability is reliable, compares other data acquisition system (DAS)s and has stronger advantage;
The dynamic memory of apparatus system platform supported data.The MAT file that real-time simulator is Matlab by data real-time storage, and can be sent to analyzing and processing in host computer; Meanwhile, real-time simulator can with host computer real-time data communication, by host computer interface, show in real time curve and the needed system monitoring value of the parameter of electric machine, shown data are instantaneous value, if need effective value, also can obtain easily demonstration;
Device is incorporated into voltage-current sensor and supporting power module and fan thereof in sensor integral box, realize the isolation with staff, prevent because electric system high voltage and large electric current damage human body, with the signal wiring of timer completely within it portion complete, reduced the numerous and disorderly degree of complexity of acquisition system site environment, also reduced because the problem that wiring is opened circuit or short circuit causes.
Accompanying drawing explanation
Fig. 1 system construction drawing of the present invention;
Fig. 2 sensor integral box outside drawing 1;
Fig. 3 sensor integral box outside drawing 2;
Fig. 4 sensor integral box internal circuit schematic diagram;
Fig. 5 torque rotary speed measuring modular circuit schematic diagram;
Fig. 6 parameter of electric machine harvester operational flow diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
For the shortcoming such as solve that conventional parameter of electric machine harvester real-time is poor, signal noise is high and safety coefficient is low, the invention provides a kind of based on AppSIM platform by the device of the sensor integral box Real-time Collection parameter of electric machine, and then realize the function to the monitoring of motor operating condition.The parameter gathering comprises rotating speed and the torque of motor stator three-phase voltage, stator three-phase current and motor.Certainly for different motors, this device can gather at most six road voltage and current signals.
The present invention includes following a few partial content:
1. by sensor integral box, measure voltage and current.Generally, sensor integral box is connected to the control module of governing system and is treated between measured motor by cable.Wherein survey sensor adopts AV100-500 type voltage sensor and the HAS50-S/SP50 type current sensor of lime company, and the power supply that the sensor and they are needed, and radiator fan integrates, form sensor integral box, be furnished with electric source line interface and unified data output interface simultaneously;
2. by torque sensor and its supporting F/I modular converter, measure rotating speed and torque, this sensor uses the CYT-302 type torque sensor of the sky, Beijing permanent noninvasive sensor technology company.This sensor is output as current signal, through XFPD-D155D intelligence isolation distributor, converts voltage signal to;
3. measurement mechanism installation site.Measurement for voltage and current signal, the output port of sensor integral box is connected on the stator winding for the treatment of measured motor, if system exists frequency control module, input port is connected to the frequency control module of governing system, otherwise is directly connected to power module.For the measurement of rotating speed and dtc signal, the axle of torque sensor and treat that the rotor of measured motor links together, rotates the axle of rotor banding dynamic torque sensor, torque sensor output torque rotary speed signal.
4. system builds wave filter based on Matlab/Simulink on AppSIM platform, and institute's image data is carried out to noise processed;
The parameter of electric machine by experiment interface box and real-time simulator pass to host computer, on the software of the AppSIM of host computer platform, realize parameter of electric machine real-time visual and show.
Introduce in detail with reference to the accompanying drawings annexation of the present invention and principle explanation below.
In conjunction with Fig. 1, the parameter of electric machine gathers experimental system as shown in the figure.The three-phase high-voltage high-current leading being produced by power module enters control module and carries out variable frequency control processing, and the three-phase current of control module output flows into motor stator three phase windings to be measured after sensor integral box.Wherein, the three-phase voltage that parameter acquisition device records and three-phase current signal, and rotating speed and dtc signal that torque sensor records will send into the analog input port of experimental interface case jointly, and then send into after real-time simulator analyzing and processing, deliver to host computer and show.The parameter of electric machine capture program building on AppSIM platform comprises parameter acquisition master routine and display monitoring program.Parameter acquisition master routine is write in sm_subsystem model, and master routine comprises that initialization arranges module, analog input card driver module and Data Dynamic memory module.Display monitoring program is write in sc_subsystem.Meanwhile, utilize the graphical interface of user GUI in Matlab to write visualization window, be used for change curve and the instantaneous value situation of change of the on-line monitoring parameter of electric machine.
Real-time simulator, as the important component part of AppSIM real-time simulation platform, is also the core controller of this parameter of electric machine harvester.Emulator support model is cut apart and multi-core CPU parallel computation, and system stability is reliable.It can carry out analyzing and processing in real time to gathered data, comprising sensor output signal being converted to parameter of electric machine real signal value and the operations such as filtering processing to signal, while real-time simulator can also be realized the communication function with host computer, and data can be presented in the window of host computer in real time.
In conjunction with Fig. 2 and Fig. 3, Fig. 2 is for seeing the outside drawing of sensor integral box from right flank, and Fig. 3 is for seeing the outside drawing of sensor integral box from left surface.The chief component of the sensor integral box in apparatus of the present invention comprises: A casing, B-source port, C data line ports, D, E, F ventilating opening, G, H, I, J Aviation Connector.Wherein the input service voltage of power port B is 220V civil power; Port C is DB37 data line male; Ventilating opening D, E, F are used for dispelling the heat; G is input end Ι group Aviation Connector; H is input end Ι Ι group Aviation Connector; J is output terminal Ι group Aviation Connector; I is output terminal Ι Ι group Aviation Connector; G, H, I, J access respectively the tested cable of three-phase and four-line.Sensor box has two passes, can measure two groups of six-phase voltage and current values altogether simultaneously.
As shown in Figure 4, be sensor integral box internal circuit schematic diagram.Main circuit will comprise: 6 voltage sensor U1, U2, U3, U7, U8, U9,6 current sensor U4, U5, U6, U10, U11, U12, ± 12V Switching Power Supply U13, ± 15V Switching Power Supply U14 and blower module U15.Fan power supply voltage is 12V, connect+12V of pin one, the pin one of receive ± 12V Switching Power Supply U13, pin two ground connection, the pin two of receive ± 12V Switching Power Supply U13.
Wherein U1, U2, U3 are Ι group voltage sensor, measure respectively the voltage of Ι group a, b, c three-phase, the pin 4 of U1, U2, U3 connects the terminals ground of Ι group input end and output terminal Aviation Connector, and the pin 5 of U1, U2, U3 connects respectively other 3 terminals of Ι group input end Aviation Connector; U7, U8, U9 are Ι Ι group voltage sensor, measure respectively the voltage of Ι Ι group a, b, c three-phase, the pin 4 of U7, U8, U9 connects the terminals ground of Ι Ι group input end and output terminal Aviation Connector, and the pin 5 of U7, U8, U9 connects respectively other 3 terminals of Ι Ι group input end Aviation Connector; Connect+12V of the pin one of voltage sensor U1, U2, U3, U7, U8, U9, the pin one of receive ± 12V Switching Power Supply U13; Connect-the 12V of pin 3 of voltage sensor U1, U2, U3, U7, U8, U9, the pin 3 of receive ± 12V Switching Power Supply U13; The pin two of voltage sensor U1, U2, U3, U7, U8, U9 connects respectively then ground connection of 100 Ω resistance, the pin two of receive ± 12V Switching Power Supply U13, the output signal that power taking resistance both end voltage is each sensor.
Wherein U4, U5, U6 are Ι group current sensor, a, the b of Ι group cable, c mutually respectively the cable by U4, U5, U6 flow on input and output Aviation Connector that 5, three cable two ends of pin are connected in respectively Ι group another three terminals except ground; U10, U11, U12 are Ι Ι group current sensor, a, the b of Ι Ι group cable, c flow into pin 5 by the cable of U10, U11, U12 respectively mutually, on another three terminals of the input and output Aviation Connector that cable two ends are connected in respectively Ι Ι group except ground; Connect+15V of the pin one of current sensor U4, U5, U6, U10, U11, U12 power supply, the pin one of receive ± 15V Switching Power Supply U14; Connect-15V of the pin two of current sensor U4, U5, U6, U10, U11, U12 power supply, the pin 3 of receive ± 15V Switching Power Supply U14; The pin 4 of current sensor U4, U5, U6, U10, U11, U12 connects power supply ground, the pin two of receive ± 15V Switching Power Supply U14; The pin 3 of current sensor U4, U5, U6, U10, U11, U12 is respectively the signal output part of each sensor.
As shown in Figure 5, be the circuit theory diagrams of torque rotary speed measuring module.Main circuit will comprise: torque sensor and supporting F/I modular converter U16, intelligent isolation distributor U17 and+24V power supply U18.The pin one of torque sensor and supporting F/I modular converter U16 thereof is tach signal output, and pin two is dtc signal output, and pin 3 is+24V power input, i.e. the pin one of connection+24V power supply U18; Pin 4 is power supply ground, the i.e. pin two of connection+24V power supply U18.Pin one and the pin two of intelligence isolation distributor U17 are rotating speed input pin.The pin one of U17 is rotating speed input negative pole, the pin two of connection+24V power supply U18; The pin two of U17 is that rotating speed input is anodal, connects the pin one of U16.The pin 5 of intelligence isolation distributor U17 and pin 6 are torque input pin, and the pin 5 of U17 is torque input negative pole, the pin two of connection+24V power supply U18, and the pin 6 of U17 is anodal for torque input, connects the pin two of U16.The pin 9 of intelligence isolation distributor U17 and pin one 0 are tach signal output, and pin one 1 and pin one 2 are dtc signal output.The pin 3,7 of intelligence isolation distributor U17 is connected positive source with 16, the pin one of receive+24V power supply U18, and the pin one 4 of intelligent isolation distributor U17 is connected power supply ground, the pin two of receive+24V power supply U18 with 15.
In conjunction with Fig. 6 parameter of electric machine harvester operational flow diagram as shown in the figure.First, sensor integral box and rotational speed and torque measurement module are measured parameter of electric machine signal, then the real-time simulator of APPSIM platform drives the board of experimental interface case to gather above-mentioned signal, signal carries out the processing such as software zeroing and software filtering in real-time simulator afterwards, and sensor output signal is converted into parameter of electric machine actual signal, finally signal is carried out to dynamic memory, and be presented in upper computer software in real time.
Claims (6)
1. a current/voltage sensor integral box, is characterized in that: comprises casing, in casing, has 12V Switching Power Supply, 15V Switching Power Supply, blower module and current/voltage sensor group,
The positive source of blower module connects the output cathode of 12V Switching Power Supply, the earth terminal of the ground connection termination 12V Switching Power Supply of blower module;
Current/voltage sensor group comprises three voltage sensors, three current sensors and three-phase and four-line cable, the negative pole of the voltage input end of each voltage sensor all connects the earth terminal of three-phase and four-line cable, in the three-phase of three-phase and four-line cable one is connected with the positive pole of the voltage input end of a voltage sensor respectively mutually, the power positive end of each voltage sensor is all connected with the output cathode of 12V Switching Power Supply, the output terminal of each voltage sensor connects respectively the earth terminal that then 100 Ω resistance receive 12V Switching Power Supply, the power-of each voltage sensor is extremely connected with the output negative pole of 12V Switching Power Supply, the output terminal of three voltage sensors is exported three tunnel measuring voltages,
In the three-phase of three-phase and four-line cable one is connected with the input end of a current sensor respectively mutually, the power positive end of each current sensor is connected with the output cathode of 15V Switching Power Supply, the power-of each current sensor is extremely connected with the output negative pole of 15V Switching Power Supply, the earth terminal of each current sensor be connected with the earth terminal of 15V Switching Power Supply, the output terminal of three current sensors is exported three drive test amount electric currents.
2. a kind of current/voltage sensor integral box according to claim 1, it is characterized in that: the number of described current/voltage sensor group is two, the inside of two current/voltage sensor groups connects identical, and two current/voltage sensor groups are connected on a 12V Switching Power Supply, a 15V Switching Power Supply and a blower module in an identical manner jointly.
3. a parameter of electric machine real-time acquisition device that comprises current/voltage sensor integral box claimed in claim 1, it is characterized in that: also comprise power module, torque rotary speed sensor module and AppSIM emulation platform, power module is connected with the three-phase and four-line input end of current/voltage sensor integral box by three-phase and four-line, the three-phase and four-line output terminal of current/voltage sensor integral box is connected with the stator winding of motor by three-phase and four-line, torque rotary speed sensor module is connected with the rotor of motor, AppSIM emulation platform is connected with torque rotary speed sensor module with current/voltage sensor integral box respectively, for Real-time Collection, store and show the dtc signal of current/voltage sensor integral box output San road voltage He San road current signal and output speed signal and the output of torque rotary speed sensor module.
4. a kind of parameter of electric machine real-time acquisition device that comprises current/voltage sensor integral box claimed in claim 1 according to claim 3, it is characterized in that: described torque rotary speed sensor module comprises torque sensor CYT-302, intelligence isolation distributor XFPD-D155D and 24V power supply, the pin one of torque sensor CYT-302 is connected with the pin two of intelligent isolation distributor XFPD-D155D, the pin two of torque sensor CYT-302 is connected with the pin 6 of intelligent isolation distributor XFPD-D155D, the pin 3 of torque sensor CYT-302 and the output cathode of 24V power supply, the pin 3 of intelligence isolation distributor XFPD-D155D, pin 7, pin one 6 connects, the pin 4 of torque sensor CYT-302 and the earth terminal of 24V power supply, the pin one of intelligence isolation distributor XFPD-D155D, pin 5, pin one 4, pin 5 is connected, pin 9 and the pin one 1 of intelligence isolation distributor XFPD-D155D are signal output pin.
5. according to a kind of parameter of electric machine real-time acquisition device that comprises current/voltage sensor integral box claimed in claim 1 described in claim 3 or 4, it is characterized in that: described AppSIM emulation platform comprises signaling interface case, real-time simulator and host computer, current/voltage sensor integral box sends electric current and voltage signal to signaling interface case, torque rotary speed sensor module sends Torque and speed signal to signaling interface case, signaling interface case sends Output rusults to real-time simulator, real-time simulator is according to receiving to such an extent that information is analyzed, send result to host computer.
6. the parameter of electric machine real-time collecting method based on parameter of electric machine real-time acquisition device claimed in claim 3, is characterized in that, comprises following step:
Step 1: current/voltage sensor integral box is measured electric current and the voltage signal of motor, torque rotary speed sensor module is measured the torque and rotational speed signal of motor;
Step 2: the real-time simulator of AppSIM emulation platform drives the board of interface box to gather electric current, voltage, torque and rotational speed signal;
Step 3: in real-time simulator, the signal collecting is carried out to filtering processing, and the signal collecting is converted into motor actual parameter signal, motor actual parameter signal is stored simultaneously;
Step 4: real-time simulator sends motor actual parameter signal to host computer and shows in real time.
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| CN108508289B (en) * | 2017-02-27 | 2020-11-17 | 通用汽车环球科技运作有限责任公司 | Robot circuit analyzer tool |
| CN111007429A (en) * | 2019-11-26 | 2020-04-14 | 国网江苏省电力有限公司检修分公司 | ANFIS-based synchronous phase modulator short-circuit fault identification method and system |
| CN113311333A (en) * | 2021-05-26 | 2021-08-27 | 北京航空航天大学 | High-speed blower stator online fault diagnosis system and method |
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