CN205608151U - Motor parameter acquisition circuit based on C8051F020 singlechip - Google Patents
Motor parameter acquisition circuit based on C8051F020 singlechip Download PDFInfo
- Publication number
- CN205608151U CN205608151U CN201620427534.7U CN201620427534U CN205608151U CN 205608151 U CN205608151 U CN 205608151U CN 201620427534 U CN201620427534 U CN 201620427534U CN 205608151 U CN205608151 U CN 205608151U
- Authority
- CN
- China
- Prior art keywords
- terminal
- operational amplifier
- resistance
- chip microcomputer
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a motor parameter acquisition circuit based on C8051F020 singlechip, include: the C8051F020 singlechip, does this power module include that with ac inversion be galvanic AC for the C8051F020 singlechip provides the power module of electric energy the DC chip, this AC the DC chip include 5V DC output, 15V DC output, 15V DC output are young, a ground terminal and the 2nd ground terminal, a voltage transformer, the 2nd voltage transformer and the 3rd voltage transformer for gathering threephase asynchronous machine input voltage signal, three voltage transformer's signal output terminal loops through the IO terminal electricity of phase compensation circuit, amplifier circuit and C8051F020 singlechip and is connected, does the C8051F020 singlechip pass through RS 232 level conversion chip and the very various display terminal of TFT are connected.
Description
Technical field
This utility model relates to parameter of electric machine detection technique field, particularly relates to a kind of based on C8051F020 single-chip microcomputer
Parameter of electric machine Acquisition Circuit.
Background technology
It is known that in recent years, along with the fast development of society, the demand of electric power is sharply increased by the mankind, and electric energy is tight
Scarce problem is on the rise, and power tense problem the most greatly governs socioeconomic development, for saves energy and close
Reason utilizes electric energy efficiently, and this is accomplished by carrying out electrical parameter accurately detecting in real time；Found by statistics: by three-phase
The electric energy that asynchronous machine is consumed accounts for more than 60% that Power Consumption of Industrial Enterprises always consumes energy, and the raising of electric system efficiency is to saving
Electric energy meaning is the most great, how to improve the efficiency of electric system, then need the various parameters of motor to be carried out in real time,
Detecting exactly and analyze, at present, people have had a lot of model theory for the analysis of the parameter of electric machine, but at motor
The context of detection of parameter, the most typically adopts the technical scheme that: mutual by various high precision current transformers or voltage
Sensor by collection in worksite to data store, periodically will store data subsequently derives, and finally shows at laboratory
And process；It is clear that the display terminal that collects of above-mentioned data exists certain hysteresis quality, therefore, design and develop one
Plant the equipment that can detect the parameter of electric machine in real time, exactly, power system will be had extremely important meaning.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of parameter of electric machine collection based on C8051F020 single-chip microcomputer
Circuit；Parameter of electric machine Acquisition Circuit based on C8051F020 single-chip microcomputer can should detect input end of motor in real time, exactly
Voltage parameter.
This utility model is adopted the technical scheme that by solving technical problem present in known technology:
A kind of parameter of electric machine Acquisition Circuit based on C8051F020 single-chip microcomputer, at least includes:
C8051F020 single-chip microcomputer；
There is provided the power module of electric energy for described C8051F020 single-chip microcomputer, this power module includes being converted to directly alternating current
The AC-DC chip of stream electricity；This AC-DC chip includes 5V DC output terminal ,-15V DC output terminal, 15V
DC output terminal, the first ground terminal and the second ground terminal；Wherein: 5V DC output terminal and the first ground terminal
Between be electrically connected the first polar capacitor, the first ceramic condenser and the first resistance；-15V DC output terminal and
The second polar capacitor, the second ceramic condenser and the second resistance it has been electrically connected between second ground terminal；15V is straight
The 3rd polar capacitor, the 3rd ceramic condenser and the 3rd have been electrically connected it between stream lead-out terminal and the second ground terminal
Resistance；
For gather the first voltage transformer of threephase asynchronous machine input terminal voltage signal, the second voltage transformer and
Tertiary voltage transformer；The signal output terminal of three voltage transformers pass sequentially through phase compensating circuit, amplifying circuit with
The I/O terminal electrical connection of C8051F020 single-chip microcomputer；
Described C8051F020 single-chip microcomputer is connected by RS-232 electrical level transferring chip display terminal very color with TFT.
Further: described amplifying circuit includes the first operational amplifier；The positive voltage pin of this first operational amplifier passes through
4th resistance connects the power supply terminal of direct current 2.5V；The positive voltage pin of this first operational amplifier passes through the 5th resistance eutral grounding；
The negative voltage pin of this first operational amplifier is connected with the lead-out terminal of phase compensating circuit by the 6th resistance；This is first years old
The negative voltage pin of operational amplifier is electrically connected with the output pin of this first operational amplifier by the 7th resistance.
Further: described phase compensating circuit includes the second operational amplifier；The positive voltage of this second operational amplifier draws
Foot is electrically connected with the lead-out terminal of voltage transformer by the 4th electric capacity；The positive voltage pin of this second operational amplifier passes through
8th resistance eutral grounding；The negative voltage pin of this second operational amplifier passes sequentially through the 9th resistance, the 4th capacity earth；Should
The negative voltage pin of the second operational amplifier is respectively by the tenth resistance, the 5th electric capacity and the output of this second operational amplifier
Pin electrically connects.
This utility model has the advantage that with good effect:
By use technique scheme, this utility model utilize C8051F020 single-chip microcomputer igh-speed wire-rod production line performance and
Stability, in combination with above-mentioned power module, three voltage transformers and then realization to motor three-phase input voltage signal
Real-time detection, it is ensured that the real-time acquisition and display of signal；Owing to have employed phase compensating circuit and amplifying circuit, therefore
Ensure stability and the accuracy of signal；The above-mentioned information of voltage got shows eventually through the very color display terminal of TFT
Show；Owing to the power module in this utility model, phase compensating circuit and amplifying circuit are all according to C8051F020 monolithic
The interface of machine needs and designs and develops, therefore, it is possible to ensure the stability in signals transmission and efficiency of transmission well.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of this utility model preferred embodiment；
Fig. 2 is the circuit diagram of power module in this utility model preferred embodiment；
Fig. 3 is the circuit diagram of amplifying circuit in this utility model preferred embodiment；
Fig. 4 is the circuit diagram of phase compensating circuit in this utility model preferred embodiment.
Detailed description of the invention
For utility model content of the present utility model, feature and effect can be further appreciated that, hereby enumerate following example, and
Accompanying drawing is coordinated to describe in detail as follows:
Refer to Fig. 1 to Fig. 4, a kind of parameter of electric machine Acquisition Circuit based on C8051F020 single-chip microcomputer, including:
C8051F020 single-chip microcomputer；The mixed-signal system level chip that C8051F020 single-chip microcomputer is completely integrated, have with
The microcontroller core of 8051 compatibilities, completely compatible with MCS-51 instruction.C8051F020 single-chip microcomputer has characteristics that
A, high-speed flow line structure the CPI-51 kernel of 8051 compatibilities up to 25MPIS；B, at full speed non-intrusion type are being
In system debugging interface sheet；C, 8 passage ADC band PGA and the analog multichannel switches of real 12 100ksps；D, two
Individual 12 DAC renewal able to programme sequential；E, 64K byte can the FLASH memory of in-system programming；F、
The ram in slice of 4352 (4096+256) byte；G, the external data memory interface in addressable 64K byte address space；
H, hard-wired SPISMBu/sZIC and two UART serial line interfaces；I, 5 16 general bit timing devices；J、
There is the programmable counter/Timer Array of 5 seizure/comparison modules；In K, sheet, WatchDog Timer VDD monitors
Device and temperature sensor；Carry ADCO inside L, single-chip microcomputer, change data into 12.Phase is carried out inside single-chip microcomputer
The setting answered, writes simple program and can carry out facilitating analog digital conversion.Intervalometer 3 is used to overflow the mode following the tracks of conversion,
Signals collecting and analog digital conversion is carried out with certain frequency.There is VDD monitor in sheet, WatchDog Timer and clock
The C8051F020 of agitator is the SOC(system on a chip) that really can work alone；All analog-and digital-peripheral hardwares all can be solid by user
Part enables/forbids and configures；FLASH memory also has in system reprogramming ability, can be used for Nonvolatile data
Storage, and allow on-the-spot renewal 8051 firmwares.In sheet, JTAG debugging circuit allows use to be arranged on final application system
On product MCU carry out non-intrusion type (being not take up resource in sheet), at full speed, in system debug.This debugging system is propped up
Hold observation and amendment memorizer and depositor, support breakpoint, point of observation, single step and operation and halt command.Using JTAG
During debugging, all of analog-and digital-peripheral hardware all can global function run.The interruption system of extension provides 22 to CIP-51
Interrupt source (standard 8051 only 7 interrupt sources), it is allowed to substantial amounts of analog-and digital-peripheral interrupt microcontroller.One
The individual system interrupting driving needs less MCU to intervene, thus has higher execution efficiency.In one multitask of design
During real-time system, these interrupt sources increased are highly useful.MCU can have up to 7 reset source: a sheet
Interior VDD monitor, WatchDog Timer, loss of clock detector, the electricity provided by comparator 0
Pressure detector, software forced resetting, CNVSTR pin and/RST pin./ RST pin is two-way, can connect
/ RST pin is exported by external reset or the power-on reset signal that produced inside.Except VDD monitor and reset are defeated
Entering beyond pin, each reset source can be forbidden with software by user；Use MONEN pin enabled/forbid VDD
Monitor.During MCU after an electrification reset initializes, WDT can be by permanent enable
The power module of electric energy is provided, as shown in Figure 2: this power module includes handing over for described C8051F020 single-chip microcomputer
Stream electricity is converted to galvanic AC-DC chip；This AC-DC chip includes that 5V DC output terminal ,-15V direct current are defeated
Go out terminal, 15V DC output terminal, the first ground terminal and the second ground terminal；Wherein: 5V DC output terminal and
The first polar capacitor C13, the first ceramic condenser C12 and the first resistance it has been electrically connected between first ground terminal
R5；The second polar capacitor C15, the second pottery it has been electrically connected between-15V DC output terminal and the second ground terminal
Electric capacity C14 and the second resistance R7；It has been electrically connected the 3rd between 15V DC output terminal and the second ground terminal
Polar capacitor C18, the 3rd ceramic condenser C17 and the 3rd resistance R8；
For gather the first voltage transformer of threephase asynchronous machine input terminal voltage signal, the second voltage transformer and
Tertiary voltage transformer；The signal output terminal of three voltage transformers pass sequentially through phase compensating circuit, amplifying circuit with
The I/O terminal electrical connection of C8051F020 single-chip microcomputer；
Described C8051F020 single-chip microcomputer is connected by RS-232 electrical level transferring chip display terminal very color with TFT.
As shown in Figure 3: described amplifying circuit includes the first operational amplifier；The positive voltage pin of this first operational amplifier
The power supply terminal of direct current 2.5V is connect by the 4th resistance R21；The positive voltage pin of this first operational amplifier is by the 5th electricity
Resistance R22 ground connection；The negative voltage pin of this first operational amplifier is by the output of the 6th resistance R16 with phase compensating circuit
Terminal connects；The negative voltage pin of this first operational amplifier is defeated by the 7th resistance R17 and this first operational amplifier
Go out pin electrical connection.
As shown in Figure 4: described phase compensating circuit includes the second operational amplifier；The positive voltage of this second operational amplifier
Pin is electrically connected with the lead-out terminal of voltage transformer by the 4th electric capacity；The positive voltage pin of this second operational amplifier leads to
Cross the 8th resistance eutral grounding；The negative voltage pin of this second operational amplifier passes sequentially through the 9th resistance, the 4th capacity earth；
The negative voltage pin of this second operational amplifier is defeated with this second operational amplifier by the tenth resistance, the 5th electric capacity respectively
Go out pin electrical connection.
Operation principle of the present utility model is: the first voltage transformer, the second voltage transformer and tertiary voltage mutual inductance
Device is respectively used to detect the three-phase voltage of input end of motor, the signal collected is sent to phase compensating circuit simultaneously and puts
Big circuit carries out Signal Pretreatment, and the signal after finally pretreatment being terminated is sent to C8051F020 single-chip microcomputer, finally
The voltage signal received is given to the very color display terminal of TFT and is shown in real time by C8051F020 single-chip microcomputer, due to
C8051F020 single-chip microcomputer has the function that high-frequency data processes, and therefore staff can also add the most therein
Carry various signal processing software, the most the most frequently used Fourier transformation etc..
Above embodiment of the present utility model is described in detail, but described content has been only preferable reality of the present utility model
Execute example, it is impossible to be considered for limiting practical range of the present utility model.All according to this utility model application range made equal
Deng change and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (3)
1. a parameter of electric machine Acquisition Circuit based on C8051F020 single-chip microcomputer, it is characterised in that: at least include:
C8051F020 single-chip microcomputer；
There is provided the power module of electric energy for described C8051F020 single-chip microcomputer, this power module includes being converted to directly alternating current
The AC-DC chip of stream electricity；This AC-DC chip includes 5V DC output terminal ,-15V DC output terminal, 15V
DC output terminal, the first ground terminal and the second ground terminal；Wherein: 5V DC output terminal and the first ground terminal
Between be electrically connected the first polar capacitor, the first ceramic condenser and the first resistance；-15V DC output terminal and
The second polar capacitor, the second ceramic condenser and the second resistance it has been electrically connected between second ground terminal；15V is straight
The 3rd polar capacitor, the 3rd ceramic condenser and the 3rd have been electrically connected it between stream lead-out terminal and the second ground terminal
Resistance；
For gather the first voltage transformer of threephase asynchronous machine input terminal voltage signal, the second voltage transformer and
Tertiary voltage transformer；The signal output terminal of three voltage transformers pass sequentially through phase compensating circuit, amplifying circuit with
The I/O terminal electrical connection of C8051F020 single-chip microcomputer；
Described C8051F020 single-chip microcomputer is connected by RS-232 electrical level transferring chip display terminal very color with TFT.
Parameter of electric machine Acquisition Circuit based on C8051F020 single-chip microcomputer the most according to claim 1, it is characterised in that:
Described amplifying circuit includes the first operational amplifier；The positive voltage pin of this first operational amplifier is connect directly by the 4th resistance
The power supply terminal of stream 2.5V；The positive voltage pin of this first operational amplifier passes through the 5th resistance eutral grounding；This first computing is put
The negative voltage pin of big device is connected with the lead-out terminal of phase compensating circuit by the 6th resistance；This first operational amplifier
Negative voltage pin is electrically connected with the output pin of this first operational amplifier by the 7th resistance.
Parameter of electric machine Acquisition Circuit based on C8051F020 single-chip microcomputer the most according to claim 2, it is characterised in that:
Described phase compensating circuit includes the second operational amplifier；The positive voltage pin of this second operational amplifier passes through the 4th electric capacity
Electrically connect with the lead-out terminal of voltage transformer；The positive voltage pin of this second operational amplifier passes through the 8th resistance eutral grounding；
The negative voltage pin of this second operational amplifier passes sequentially through the 9th resistance, the 4th capacity earth；This second operational amplifier
Negative voltage pin electrically connected with the output pin of this second operational amplifier by the tenth resistance, the 5th electric capacity respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427534.7U CN205608151U (en) | 2016-05-11 | 2016-05-11 | Motor parameter acquisition circuit based on C8051F020 singlechip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427534.7U CN205608151U (en) | 2016-05-11 | 2016-05-11 | Motor parameter acquisition circuit based on C8051F020 singlechip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205608151U true CN205608151U (en) | 2016-09-28 |
Family
ID=56965958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620427534.7U Expired - Fee Related CN205608151U (en) | 2016-05-11 | 2016-05-11 | Motor parameter acquisition circuit based on C8051F020 singlechip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205608151U (en) |
-
2016
- 2016-05-11 CN CN201620427534.7U patent/CN205608151U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203720285U (en) | Online electric power quality monitoring device | |
| CN203117756U (en) | Airplane-mounted real-time fault diagnosis unit | |
| CN205608152U (en) | Parameter acquisition circuit that three -phase asynchronous motor used | |
| CN201237737Y (en) | Sequence event logging performance test apparatus | |
| CN205749675U (en) | Harmonic detection test platform | |
| CN203519723U (en) | Wide range DC electric energy meter | |
| CN104007320A (en) | Digital RLC tester | |
| CN205608151U (en) | Motor parameter acquisition circuit based on C8051F020 singlechip | |
| CN205210623U (en) | Analog data acquisition controller based on DSP+ARM industry treater and FPGA | |
| CN209707590U (en) | A kind of three phase dynamic harmonic electric energy meter apparatus | |
| CN202916338U (en) | Device for monitoring and recording electric power of electric equipment in real time | |
| CN204479682U (en) | For the Fault Quick Diagnosis analyser of intensive DC de-icing device power cell | |
| CN204405737U (en) | A kind of harmonic measurement device based on DSP | |
| CN204241591U (en) | Based on the low-voltage cabinet electrical energy parameter on-Line Monitor Device of carrier communication | |
| CN203825078U (en) | FPGA-based electric dust remover high frequency power source collector | |
| CN203414947U (en) | FPGA (Field Programmable Gate Array)-based multi-channel high-speed voltage and resistance isolating acquisition card | |
| CN106201986A (en) | A kind of SOC for power energy system | |
| CN109164334A (en) | The equipment for monitoring power quality of distributed power grid, method and system | |
| CN204046269U (en) | The harvester of power equipment data | |
| CN203894328U (en) | Digital RLC tester | |
| CN103412241A (en) | Cable fault positioning system based on single-chip microcomputer technology | |
| CN204595175U (en) | For the hardware circuit of intelligent instrument battery power consumption sampling | |
| CN204758791U (en) | Oceanographic buoy battery remote monitoring system | |
| CN202995341U (en) | A signal collection device for digital values and analog values | |
| CN206740953U (en) | A kind of computer intelligence energy collection terminal function test system based on Internet of Things |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20200511 |