CN206193115U - Multi -functional three -phase electricity parameter acquisition device - Google Patents
Multi -functional three -phase electricity parameter acquisition device Download PDFInfo
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- CN206193115U CN206193115U CN201621033337.3U CN201621033337U CN206193115U CN 206193115 U CN206193115 U CN 206193115U CN 201621033337 U CN201621033337 U CN 201621033337U CN 206193115 U CN206193115 U CN 206193115U
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Abstract
The utility model relates to a multi -functional three -phase electricity parameter acquisition device. Its purpose is in order to provide a simple structure, to gather the electric parameter acquisition device that complete high -speed, the high accuracy of kind is joined to the electricity. The utility model discloses a microcontroller, the clock circuit, the communication circuit, acquisition circuit is joined to three -phase signal conditioning circuit and three -phase electricity, three -phase signal conditioning circuit's signal reception end inserts three phase current respectively, three -phase signal conditioning circuit's signal output part is connected through low pass filter circuit and electricity ginseng acquisition circuit's signal reception end respectively, the signal output part that acquisition circuit is joined to the electricity is connected with microcontroller's signal reception end, microcontroller's control signal output is connected with the control end of each signal conditioning circuit and low pass filter circuit respectively. The signal output part of microcontroller's signal reception end and clock circuit is connected, microcontroller's data transmission terminal respectively with memory circuit and communication circuit connection.
Description
Technical field
The utility model is related to electric circuit inspection field, more particularly to a kind of Multi-function three-phase parameter acquisition devices.
Background technology
With developing rapidly for oil field digital Construction, traditional rod-pumped well monitoring of working condition includes indicator diagram measurement, shows
Work(figure gauging and limited indicator card underground fault diagnosis classification, envelop of function are narrow, and rod-pumped well can not be met
The demand of digital improvement.Synchronism of drift, displacement and load of accuracy, weighing sensor due to indicator diagram measurement etc.
Potential problems all have no way of verifying that the reliability of indicator diagram measurement also requires study.And the collecting test of oil pumper electric parameter is being taken out
Research application in terms of the performance analysis of oil machine well and vibrations analysis has begun to, but due to without suitable high-precision at high speed
Electricity ginseng harvester and hinder the further expansion of rod-pumped well digital improvement.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple structure, collection electricity ginseng A wide selection of colours and designs, collection speed
The Multi-function three-phase parameter acquisition devices that degree is fast, acquisition precision is high.
The utility model Multi-function three-phase parameter acquisition devices, wherein, including microcontroller, clock circuit, three believe
Number modulate circuit and electricity ginseng Acquisition Circuit, the signal receiving end of three-phase signal modulate circuit are respectively connected to three phase mains, and three believe
The signal output part of number modulate circuit be connected by low-pass filter circuit with the signal receiving end of electricity ginseng Acquisition Circuit respectively, electric to join
The signal output part of Acquisition Circuit is connected with the signal receiving end of microcontroller, the control signal output of microcontroller respectively with
The control end connection of three-phase signal modulate circuit and low-pass filter circuit, signal receiving end and the clock circuit of microcontroller
Signal output part is connected, and the data transmission terminal of microcontroller is connected with storage circuit and communicating circuit respectively, the electricity of microcontroller
Source is connected with power circuit.
The utility model Multi-function three-phase parameter acquisition devices, wherein the electricity ginseng Acquisition Circuit includes CS5463 electric energy
Access voltage input end, electricity in computation chip, voltage transformer summation current transformer, two connection ends of voltage transformer primary side
Two connection ends of pressure transformer secondary side are respectively connected to the first voltage input pin and second of CS5463 electric energy computation chips
Access current input terminal, the two of Current Transformer Secondary side in voltage input pin, two connection ends of current transformer primary side
Individual connection end is respectively connected to the first electric current input pin and the second electric current input pin of CS5463 electric energy computation chips, CS5463
The power end of electric energy computation chip accesses power supply, and the signal output part of CS5463 electric energy computation chips connects with the signal of microcontroller
Receiving end is connected.
The utility model Multi-function three-phase parameter acquisition devices, wherein the CS5463 electric energy computation chips and microcontroller
Photoelectric isolating circuit is provided between device, the signal input part of photoelectric isolating circuit is defeated with the signal of CS5463 electric energy computation chips
Go out end connection, the signal output part of photoelectric isolating circuit is connected with the signal receiving end of microcontroller.
The utility model Multi-function three-phase parameter acquisition devices, wherein the voltage transformer and CS5463 electric energy metricals
The 4th resistance, second resistance and the first capacitor are provided between chip, the 4th resistance is connected to voltage transformer secondary side
Between two connection ends, the first wire is drawn between a connection end of voltage transformer secondary side and the 4th resistance, first leads
The other end of line accesses the first voltage input pin of CS5463 electric energy computation chips, and second resistance is arranged on the first wire,
The second wire is drawn on the first wire between second resistance and CS5463 electric energy computation chips, the other end of the second wire is accessed
Zero potential point, the first capacitor is arranged on the second wire, is drawn on the second wire between the first capacitor and zero potential point
Privates, the other end of privates accesses the second voltage input pin of CS5463 electric energy computation chips.
The utility model Multi-function three-phase parameter acquisition devices, wherein the current transformer and CS5463 electric energy metricals
The 5th resistance, 3rd resistor and the second capacitor are provided between chip, the 5th resistance is connected to Current Transformer Secondary side
Between two connection ends, privates are drawn between a connection end of Current Transformer Secondary side and the 5th resistance, the 4th leads
The other end of line accesses the first electric current input pin of CS5463 electric energy computation chips, and 3rd resistor is arranged on privates,
The 5th wire is drawn on privates between 3rd resistor and CS5463 electric energy computation chips, the other end of the 5th wire is accessed
Zero potential point, the second capacitor is arranged on the 5th wire, is drawn on the 5th wire between the second capacitor and zero potential point
6th wire, the other end of the 6th wire accesses the second electric current input pin of CS5463 electric energy computation chips.
The utility model Multi-function three-phase parameter acquisition devices, wherein the voltage transformer is current mode mutual induction of voltage
Device.
The utility model Multi-function three-phase parameter acquisition devices difference from prior art is:The utility model sets
Signal conditioning circuit and low-pass filter circuit are equipped with, letter is carried out to the voltage signal and current signal in the three-phase circuit that collects
Number conversion and filtering, it is ensured that the degree of accuracy of signal and definition, and by microcontroller to signal conditioning circuit and low pass filtered
Wave circuit carries out feedback control, every individually to carry out DC offset, exchange side-play amount, gain calibration, phase compensation all the way,
Further ensure the degree of accuracy of signal.Electricity ginseng Acquisition Circuit uses electric energy computation chip external voltage transformer, Current Mutual Inductance
Device and photoelectric isolating circuit, are changed into small voltage signal and low current signal, just respectively by big voltage signal and high current signal
It is acquired in electric energy computation chip.Electric energy computation chip can gather and calculate various electrical energy parameters, considerably increase three-phase
The parameter acquisition scope of electrical parameter harvester, microcontroller can be stored and extracted to the electrical energy parameter of collection, it is ensured that
The integrality and trackability of record, using high-precision electric energy computation chip, three-phase signal modulate circuit, low pass at high speed
Filter circuit and electricity ginseng Acquisition Circuit select high-precision electronic device, can realize the electricity of high speed, high accuracy and population parameter
Energy data acquisition, Refresh Data speed reaches as high as 50Hz, and acquisition precision reaches 0.25%FS, can be to the electricity of each cycle
Stream, voltage, active power, reactive power, power factor, apparent energy parameter are acquired, can be with cumulative measurement positive and negative two
The electric energy in individual direction.
The utility model Multi-function three-phase parameter acquisition devices are described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structured flowchart of the utility model Multi-function three-phase parameter acquisition devices;
Fig. 2 is the circuit connection diagram of electricity ginseng Acquisition Circuit in the utility model Multi-function three-phase parameter acquisition devices.
Specific embodiment
As shown in figure 1, be the structured flowchart of the utility model Multi-function three-phase parameter acquisition devices, including microcontroller
MCU, clock circuit, storage circuit, communicating circuit, power circuit, three-phase signal modulate circuit and electricity ginseng Acquisition Circuit, three believe
Number modulate circuit includes A phase signals modulate circuit, B phase signals modulate circuit and C phase signals modulate circuits again.A phase signals are nursed one's health
The signal receiving end of circuit, B phase signals modulate circuit and C phase signals modulate circuits is respectively connected to three phase mains, the conditioning of A phase signals
The signal receiving end of circuit receives A phase currents and A phase voltages, the signal receiving end of B phase signals modulate circuits receive B phase currents and
B phase voltages, the signal receiving end of C phase signals modulate circuits receives C phase currents and C phase voltages, and A phase signals modulate circuit, B believe
The signal output part of number modulate circuit and C phase signals modulate circuits is respectively by the letter of low-pass filter circuit and electricity ginseng Acquisition Circuit
Number receiving terminal connection, the signal output part of electricity ginseng Acquisition Circuit is connected with the signal receiving end of microcontroller, microcontroller
Control signal output respectively with A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit and LPF
The control end connection of device circuit, is believed to A phase signals modulate circuit, B phase signals modulate circuit, C respectively by microcontroller
Number modulate circuit and low-pass filter circuit are controlled.The signal receiving end of microcontroller is defeated with the signal of clock circuit
Go out end connection, the data transmission terminal of microcontroller is connected with storage circuit and communicating circuit respectively, the electricity of microcontroller
Source is connected with power circuit.
Embodiment:As shown in Fig. 2 being electricity ginseng Acquisition Circuit in the utility model Multi-function three-phase parameter acquisition devices
Circuit connection diagram, including CS5463 electric energy computation chips, voltage transformer pt, Current Transmit and photoelectric isolating circuit, electricity
Two connection ends of transformer PT primary sides are pressed to access voltage input end, a connection end and the electricity of voltage transformer pt primary side
Resistance R1 is in series between pressure input, the 4th resistance R4 is connected between two connection ends of voltage transformer pt secondary side,
The first wire, another termination of the first wire are drawn between one connection end of voltage transformer pt secondary side and the 4th resistance R4
Enter the first voltage input pin VIN+ of CS5463 electric energy computation chips, second resistance R2 is provided with the first wire, second
The second wire is drawn on the first wire between resistance R2 and CS5463 electric energy computation chip, the other end of the second wire accesses zero
Potential point GND, is provided with the first capacitor C1 on the second wire, and between the first capacitor C1 and zero potential point GND second
Privates is drawn on wire, the other end of privates accesses the second voltage input pin of CS5463 electric energy computation chips
VIN-.Access current input terminal, two companies of Current Transmit secondary side in two connection ends of Current Transmit primary side
Connect and be connected with the 5th resistance R5 between end, the is drawn between a connection end of Current Transmit secondary side and the 5th resistance R5
Four wires, the other end of privates accesses the first electric current input pin IIN+ of CS5463 electric energy computation chips, privates
On be provided with 3rd resistor R3, drawn on the privates between 3rd resistor R3 and CS5463 electric energy computation chip and the 5th led
Line, the other end of the 5th wire accesses zero potential point GND, the second capacitor C2 is provided with the 5th wire, in the second capacitor
The 6th wire is drawn on the 5th wire between C2 and zero potential point GND, the other end of the 6th wire accesses CS5463 electric energy meters
Measure the second electric current input pin IIN- of chip.The power end of CS5463 electric energy computation chips accesses 5V power supplys.CS5463 electric energy
The signal output part of computation chip is connected with the signal input part of photoelectric isolating circuit, the signal output part of photoelectric isolating circuit with
The signal receiving end connection of microcontroller.Electric energy computation chip can also be using other models such as CS5460A.
Voltage transformer pt employed in one embodiment of the present utility model is current mode voltage transformer.
Electricity ginseng Acquisition Circuit operation principle be:First voltage input pin VIN+ on CS5463 electric energy computation chips and
Gain amplifier is integrated with second voltage input pin VIN-, the first electric current input on CS5463 electric energy computation chips is drawn
Also gain amplifier is integrated with pin IIN+ and the second electric current input pin IIN-, the voltage and current of input is respectively by electricity
Entered into CS5463 electric energy computation chips after pressure transformer summation current transformer, electricity of the CS5463 electric energy computation chips to input
Pressure signal and current signal are amplified and voltage signal and current signal are processed and gathered with after filtering process, and pass through
The signal output part of CS5463 electric energy computation chips sends photoelectric isolating circuit to, and photoelectric isolating circuit is defeated by the signal after isolation
Go out to microcontroller.
The course of work of the present utility model is:A phase signals modulate circuit, B phase signals modulate circuit and C phase signals conditioning electricity
Each phase voltage signal and current signal of the road respectively to being input into are processed, and are converted analog signals into data signal and are led to respectively
Enter low-pass filter circuit to be filtered, filtered each phase voltage signal and current signal are carried out by electricity ginseng Acquisition Circuit respectively
The treatment and collection of signal, each electricity ginseng electrical energy parameter uniform transmission that will collect of Acquisition Circuit to microcontroller at
Reason, microcontroller control starts conversion, high-speed sampling, data processing, and each item data is sent out by communicating circuit
Go, storage relevant historical record.Microcontroller is connected by communicating circuit with host computer or watch-dog, by host computer
Microcontroller is controlled, and the electrical energy parameter that microcontroller is received uploads network.Microcontroller also passes through
The electrical energy parameter for receiving is to A phase signals modulate circuit, B phase signals modulate circuit, C phase signals modulate circuit and LPF electricity
Road carries out feedback control, it is ensured that the conditioning precision and the filtered amplitude of low-pass filter circuit of modulate circuit.The utility model can
Three-phase instantaneous voltage, three-phase transient current, three-phase instantaneous power, three-phase are gathered with the Refresh Data speed of highest 50Hz instantaneous
Voltage effective value and three-phase transient current virtual value, and single-phase and three phases active power, nothing can be calculated by electricity ginseng Acquisition Circuit
Work(power, apparent energy and power factor;Can also realize that accumulative forward direction active energy, negative sense are active by microcontroller
Electric energy, positive reactive energy and negative sense reactive energy;Can be realized nearest 20 days by electricity ginseng Acquisition Circuit and microcontroller
Energy data check meter, day data comprising forward direction active, day day, reversely reversely the idle, same day is positive active, day positive idle, day
Maximum active and time of origin, the idle and time of origin of the same day positive maximum, the active and time of origin of the same day reverse maximum, the same day
The idle and time of origin of reverse maximum;The electric energy number of nearest 6 months can be realized by electricity ginseng Acquisition Circuit and microcontroller
According to checking meter, moon packet forward direction containing the moon is active, the moon, reversely the active, the moon positive idle, moon was reversely idle, of that month positive maximum active
And time of origin, the idle and time of origin of of that month positive maximum, the active and time of origin of this month reverse maximum, of that month reversely maximum
Idle and time of origin.
The utility model Multi-function three-phase parameter acquisition devices, are provided with signal conditioning circuit and low-pass filter circuit,
The conversion and filtering of signal are carried out to the voltage signal and current signal in the three-phase circuit that collects, it is ensured that the degree of accuracy of signal
And definition, and feedback control is carried out to signal conditioning circuit and low-pass filter circuit by microcontroller, per all the way
DC offset, exchange side-play amount, gain calibration, phase compensation are individually carried out, the degree of accuracy of signal is further ensured.Electricity ginseng
Acquisition Circuit uses electric energy computation chip external voltage transformer PT, Current Transmit and photoelectric isolating circuit, by big voltage
Signal and high current signal are changed into small voltage signal and low current signal respectively, are easy to electric energy computation chip to be acquired.Electricity
Energy computation chip can gather and calculate various electrical energy parameters, considerably increase the parameter acquisition model of three phase electrical parameters harvester
Enclose, microcontroller can be stored and extracted to the electrical energy parameter for gathering, it is ensured that the integrality of record and can review
Property, using high-precision electric energy computation chip at high speed, three-phase signal modulate circuit, low-pass filter circuit and electricity ginseng Acquisition Circuit
High-precision electronic device is selected, the electrical energy data acquiring of high speed, high accuracy and population parameter, Refresh Data speed can be realized
50Hz is reached as high as, acquisition precision reaches 0.25%FS, can be to the electric current of each cycle, voltage, active power, idle work(
Rate, power factor, apparent energy parameter are acquired, can be with the electric energy of the positive and negative both direction of cumulative measurement.The utility model
Simple structure, collection electricity ginseng wide variety, acquisition precision are high, compared with prior art with clear advantage.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of the utility model claims determination
In the range of.
Claims (6)
1. a kind of Multi-function three-phase parameter acquisition devices, it is characterised in that:Including microcontroller (MCU), clock circuit, three-phase
Signal conditioning circuit and electricity ginseng Acquisition Circuit, the signal receiving end of three-phase signal modulate circuit are respectively connected to three phase mains, three-phase
The signal output part of signal conditioning circuit is connected by low-pass filter circuit with the signal receiving end of electricity ginseng Acquisition Circuit respectively, electricity
The signal output part for joining Acquisition Circuit is connected with the signal receiving end of microcontroller (MCU), the control signal output of microcontroller
The control end respectively with three-phase signal modulate circuit and low-pass filter circuit is held to be connected, the signal of microcontroller (MCU) is received
End is connected with the signal output part of clock circuit, and the data transmission terminal of microcontroller (MCU) is electric with storage circuit and communication respectively
Road connects, and the power end of microcontroller (MCU) is connected with power circuit.
2. Multi-function three-phase parameter acquisition devices according to claim 1, it is characterised in that:The electricity ginseng Acquisition Circuit
Including CS5463 electric energy computation chips, voltage transformer (PT) summation current transformer (CT), voltage transformer (PT) primary side
Voltage input end is accessed in two connection ends, and two connection ends of voltage transformer (PT) secondary side are respectively connected to CS5463 electric energy meters
Measure the first voltage input pin (VIN+) and second voltage input pin (VIN-) of chip, current transformer (CT) primary side
Two connection ends access current input terminal, two connection ends of current transformer (CT) secondary side are respectively connected to CS5463 electric energy
The first electric current input pin (IIN+) and the second electric current input pin (IIN-) of computation chip, CS5463 electric energy computation chips
Power end access power supply, the signal output part of CS5463 electric energy computation chips connects with the signal receiving end of microcontroller (MCU)
Connect.
3. Multi-function three-phase parameter acquisition devices according to claim 2, it is characterised in that:The CS5463 electric energy meter
Photoelectric isolating circuit, the signal input part and CS5463 of photoelectric isolating circuit are provided between amount chip and microcontroller (MCU)
The signal output part connection of electric energy computation chip, signal output part and the signal of microcontroller (MCU) of photoelectric isolating circuit connect
Receiving end is connected.
4. Multi-function three-phase parameter acquisition devices according to claim 2, it is characterised in that:The voltage transformer
(PT) the 4th resistance (R4), second resistance (R2) and the first capacitor (C1) are provided with and CS5463 electric energy computation chips between,
4th resistance (R4) is connected between two connection ends of voltage transformer (PT) secondary side, voltage transformer (PT) secondary side
The first wire is drawn between one connection end and the 4th resistance (R4), the other end of the first wire accesses CS5463 electric energy metrical cores
The first voltage input pin (VIN+) of piece, second resistance (R2) is arranged on the first wire, second resistance (R2) and CS5463
The second wire is drawn on the first wire between electric energy computation chip, the other end of the second wire accesses zero potential point (GND), the
One capacitor (C1) is arranged on the second wire, is drawn on the second wire between the first capacitor (C1) and zero potential point (GND)
Go out privates, the other end of privates accesses the second voltage input pin (VIN-) of CS5463 electric energy computation chips.
5. Multi-function three-phase parameter acquisition devices according to claim 2, it is characterised in that:The current transformer
(CT) the 5th resistance (R5), 3rd resistor (R3) and the second capacitor (C2) are provided with and CS5463 electric energy computation chips between,
5th resistance (R5) is connected between two connection ends of current transformer (CT) secondary side, current transformer (CT) secondary side
Privates are drawn between one connection end and the 5th resistance (R5), the other end of privates accesses CS5463 electric energy metrical cores
First electric current input pin (IIN+) of piece, 3rd resistor (R3) is arranged on privates, 3rd resistor (R3) and CS5463
The 5th wire is drawn on privates between electric energy computation chip, the other end of the 5th wire accesses zero potential point (GND), the
Two capacitors (C2) are arranged on the 5th wire, are drawn on the 5th wire between the second capacitor (C2) and zero potential point (GND)
Go out the 6th wire, the other end of the 6th wire accesses the second electric current input pin (IIN-) of CS5463 electric energy computation chips.
6. Multi-function three-phase parameter acquisition devices according to claim 2, it is characterised in that:The voltage transformer
(PT) it is current mode voltage transformer.
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CN201621033337.3U CN206193115U (en) | 2016-08-31 | 2016-08-31 | Multi -functional three -phase electricity parameter acquisition device |
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CN201621033337.3U CN206193115U (en) | 2016-08-31 | 2016-08-31 | Multi -functional three -phase electricity parameter acquisition device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109342808A (en) * | 2018-11-07 | 2019-02-15 | 浙江涵普电力科技有限公司 | Generator intelligent power pick-up device |
-
2016
- 2016-08-31 CN CN201621033337.3U patent/CN206193115U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109342808A (en) * | 2018-11-07 | 2019-02-15 | 浙江涵普电力科技有限公司 | Generator intelligent power pick-up device |
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