CN109342812A - A kind of machining equipment energy consumption measurement device - Google Patents
A kind of machining equipment energy consumption measurement device Download PDFInfo
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- CN109342812A CN109342812A CN201811228098.0A CN201811228098A CN109342812A CN 109342812 A CN109342812 A CN 109342812A CN 201811228098 A CN201811228098 A CN 201811228098A CN 109342812 A CN109342812 A CN 109342812A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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Abstract
The invention discloses a kind of machining equipment energy consumption measurement devices, including energy consumption data acquisition module, energy consumption data processing module, energy consumption data control transmission module and PC monitoring client, wherein, energy consumption data acquisition module includes voltage transformer, current transformer and low-pass filter；Energy consumption data processing module includes the electric energy computation chip group as composed by three pieces three-phase electrical energy computation chip, and it includes microcontroller, light-emitting diode display and matrix keyboard that energy consumption data, which controls transmission module, and microcontroller is connected by SPI interface with the register；PC monitoring client receives the data of microcontroller transmission by communication interface, shows energy consumption power curve by human-computer interaction interface.The present invention has better real-time, reliability and stability compared to existing measuring device, and it can be widely used in the status information analysis, management control and the research of energy saving optimizing of energy consumption in numerical controlled machinery process equipment mechanical processing process, there is wide application prospect.
Description
Technical field
The present invention relates to a kind of machining equipment energy consumption measurement devices, belong to field of machining.
Background technique
About machining equipment energy consumption measurement problem, there have been a large amount of research in foreign countries.The international production engineering academy of sciences
(CIRP, The International Academy for Production Engineering) the 18th life cycle engineering
Meeting is directed to machining equipment energy management problem, a kind of modular energy consumption modeling method is proposed, for machinery
The monitoring of process equipment energy provides methodology support；The Kordonowy of Massachusetts Polytechnics proposes a kind of based on specified function
Machining equipment energy consumption is divided into variable by the machining equipment energy efficiency Calculating model of rate using statistical method
Energy consumption and fixed energy consumption, and power consumption statistic model is established to a variety of different types of machining equipments with the method；State
The interior research to this respect is mainly that Liu Fei proposes in mechanical processing process that there is also load loss in one's early years, i.e., is caused by load
Transmission system and motor additional-energy loss；Liu Gaojun et al. proposes a kind of man-machine interactive machining equipment processing
Condition discrimination method, but this method needs artificial real-time operation, and shop applications are more inconvenient, and Zhejiang University Tang Renzhong teaches team
In the modeling of numerical controlled machinery process equipment energy supply, the modeling of machining work process energy requirement and product cell production process
Correlative study has been carried out in carbon emission calculating etc..
In conclusion domestic research is concentrated mainly on the reason to energy consumption process in machining equipment mechanical processing process
By research and model foundation, and external research has begun and grinds to the monitoring software of machining equipment energy loss
Study carefully.Accordingly, the energy consuming process in numerical control machining equipment process is monitored, is to obtain machining equipment
The effective means of energy consumption real time data can mention for machining equipment energy saving optimizing decision and assessment machining equipment energy consumption
For data support, be China's machining equipment industry energy-saving and emission-reduction and move towards it is international inherence and external need.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of machining equipment energy consumption measurement device, with VB and ARM
Based on, in machining equipment process energy efficiency evaluation and energy optimization basic data and theories integration are provided, it is right
Directive function is played in energy-saving research in machining equipment actual production.
The technical solution mainly used in the present invention are as follows:
A kind of machining equipment energy consumption measurement device, including energy consumption data acquisition module, energy consumption data handle mould
Block, energy consumption data control transmission module and PC monitoring client, wherein
The energy consumption data acquisition module includes voltage transformer, current transformer and low-pass filter, and the voltage is mutual
Sensor and current transformer acquire the three-phase voltage and electric current of numerical controlled machinery process equipment, and the three-phase voltage and electricity acquired respectively
The low-pass filtered device of flow data is transmitted to energy consumption data processing module；
The energy consumption data processing module includes the electric energy computation chip group as composed by three pieces three-phase electrical energy computation chip,
The electric energy computation chip group receives the three-phase voltage and current data of the energy consumption data acquisition module acquisition, and carries out to it
A/D conversion and calculation processing, to obtain corresponding energy consumption parameter, the energy consumption parameter is stored in posting in electric energy computation chip
In storage, the register and energy consumption data control transmission module data transmission are connected；
The energy consumption data control transmission module includes microcontroller, light-emitting diode display and matrix keyboard, and the LED is shown
Device and matrix keyboard are connect with the hardware interface of microcontroller respectively, and the microcontroller passes through SPI interface and the electric energy meter
Register in amount chip is connected, and the microcontroller reads the energy consumption parameter in the register in electric energy computation chip and carries out
Display, storage, the microcontroller transmit data to PC monitoring client by communication interface；
The PC monitoring client receives the data of microcontroller transmission by communication interface, and carries out figure by VB software programming
As drawing, energy consumption power curve is shown by human-computer interaction interface.
Preferably, the voltage transformer and current transformer are respectively connected to survey in numerical controlled machinery process equipment air switch
The three-phase voltage and three-phase current in air switch are measured, the low-pass filter is connected to each current transformer and electricity
After current transformer, for filtering out high-frequency noise and DC current gain after sampling in analog data signal, to improve signal
Anti-interference.
Preferably, mutual with the electric current of the same phase of measurement respectively per a piece of electric energy computation chip in the electric energy computation chip group
Sensor is connected with voltage transformer, and the sampled value that the phase current mutual inductor and voltage transformer acquire is calculated
Energy consumption parameter, and energy consumption parameter is stored in registers.
Preferably, the energy consumption parameter includes that sample rate current virtual value, sampled voltage virtual value, active power, three-phase have
Function power, machining equipment energy consumption, machining equipment process effective energy and machining equipment are processed
Journey capacity usage ratio.
Preferably, the light-emitting diode display is four seven sections of LED charactrons, wherein 1 is used for display channel number, 3 are used for
Show voltage, electric current and performance number, the keyboard that the matrix keyboard is one 4 × 3 is selected including 0~7 8 paths
Select number key, and control display mode, display status function key.
Preferably, in the energy consumption parameter shown in current effective value calculation formula such as formula (1):
In the energy consumption parameter shown in sampled voltage virtual value calculation formula such as formula (2):
Active power calculates shown in formula such as formula (3) in the energy consumption parameter:
In the energy consumption parameter shown in three phases active power calculation formula such as formula (4):
P=Pa+Pb+Pc(4)；
In the energy consumption parameter shown in machining equipment energy consumption calculation formula such as formula (5):
E=∫ Pdt (5)；
In the energy consumption parameter shown in machining equipment process effective energy calculation formula such as formula (6):
In the energy consumption parameter shown in machining equipment process capacity usage ratio calculation formula such as formula (7):
In above-mentioned formula (1)~(7), inIt is the instantaneous current value that n-th current transformer samples, unIndicate n-th
The instantaneous voltage value that voltage transformer samples, U (n) indicate that the effective voltage value that n-th is calculated, I (n) indicate n-th
The secondary current effective value being calculated, EeffIndicate the cutting effective energy of machining equipment, PUiIndicate that machining equipment adds
Work dynamical system is in revolving speed niUnder cut-in without ball power, Paux(t) indicate that the power of the specific auxiliary system of machining equipment, α indicate
Additional load coefficient when machining equipment is cut, tcskAt the beginning of indicating k-th of cutting process, tcekIt indicates k-th
The end time of cutting process, ηEIndicate that machining equipment process capacity usage ratio, k indicate k-th of cutting process, Ein
Indicate the total input energy of detection lathe, PinIndicate total input realtime power value of detection lathe, tinsAt the beginning of indicating detection
Between, tineIndicate the end time of detection.
Preferably, the voltage transformer is ZMPT101B type voltage transformer, and analog voltage output is within 250v
Alternating voltage, the current transformer are TA12-100 type current transformer, and input and output ratio is 5A/5mA, the low pass
Filter is TCL14 type Butterworth filter, and clock cutoff frequency ratio is 100:1, and error is less than ± 1%.
Preferably, the electric energy computation chip is single-phase electric energy metering chip, model SA9904B type electrical energy measurement
Chip.
Preferably, the microcontroller is the ARM chip of STM32F103C8T6 model, the ARM chip and the end PC
Between data transmission using shop layer communication network realize.
Preferably, the human-computer interaction interface includes energy consumption measurement module, energy consumption analysis module and result output module,
The energy consumption measurement module is used to measure the power data of machining equipment, including acquisition, display, store function, to real-time
Power curve while power data store/show in mechanical graphics process equipment process, the energy consumption analysis
Module be used for consumption information processing and analyze, statistic computer tool process equipment total energy consumption, machining equipment effective energy,
Machining equipment capacity usage ratio and machining equipment runing time, and machining equipment consumption information is depicted as machine
Tool process equipment energy distribution figure, the result output module are used to export the consumption information of personnel demand, including machining
Equipment total energy consumption, machining equipment effective energy and machining equipment capacity usage ratio.
The utility model has the advantages that the present invention provides a kind of machining equipment energy consumption measurement device, have the advantages that
One, energy consumption measurement functional module multiplicity: compared to existing consumption information acquisition device, survey provided by the present invention
Amount device exports three measurement functional modules by energy consumption measurement, energy consumption analysis and result and constitutes, and can mention in real time for operator
For the power curve in machining equipment process, machining equipment total energy consumption, machining equipment effective energy, machine
The machining equipments consumption information such as tool process equipment capacity usage ratio and machining equipment runing time.And it can be to machinery
Energy consumption component is analyzed in process equipment process, thus mechanical graphics process equipment energy distribution figure, for machining
The energy-saving offer theoretical foundation of equipment process.
Two, data acquisition is efficient, acquires accurate data: for existing acquisition device, the number that samples
According to by being just directly entered data processing after sensor, and data are probably lost because of signal interference in collection process
Very, this has serious limitation for the acquisition of machining equipment data, it cannot be guaranteed that the acquisition of machining equipment data
Accuracy, in contrast, the present invention carries out data filtering using low-pass filter, can it is reliable and effective will it is collected mutually
Feel voltage signal and mutual inductance current signal and noise separation, improve the anti-interference and signal-to-noise ratio of signal, to guarantee to acquire number
According to accuracy and collection process high efficiency.
Three, device hardware is practical portable, and use process is simple: for existing acquisition device, experimental bench is generally tied
Structure is complicated and is not easy to assemble and disassemble, and the device of the invention hardware considers practical and portable etc. demand, and all hardware is equal
It is designed using minimizing, to reduce tool volume, enhancing practicability as far as possible to realize the Fast Installation at detection scene.
Four, machining equipment energy consumption measurement device provided by the present invention has compared to existing measuring device
Better real-time, reliability and stability, and can be widely used in numerical controlled machinery process equipment mechanical processing process
In status information analysis, management control and the research of energy saving optimizing of energy consumption, there is wide application prospect.
Detailed description of the invention
Fig. 1 is apparatus of the present invention the general frame；
Fig. 2 is energy consumption data control module connection circuit figure of the present invention；
Fig. 3 is the energy consumption power curve real-time display of measurement process of the present invention；
Fig. 4 is the machining equipment energy consumption analysis of measurement process of the present invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below to the embodiment of the present application
In technical solution be clearly and completely described, it is clear that described embodiments are only a part of embodiments of the present application,
Instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present application.
Further detailed description has been done to technical solution of the present invention with reference to the accompanying drawing:
As shown in Figs 1-4, a kind of machining equipment energy consumption measurement device, including energy consumption data acquisition module, energy
Consume data processing module, energy consumption data control transmission module and PC monitoring client, wherein
The energy consumption data acquisition module includes voltage transformer, current transformer and low-pass filter, and the voltage is mutual
Sensor and current transformer acquire the three-phase voltage and electric current of numerical controlled machinery process equipment, and the three-phase voltage and electricity acquired respectively
The low-pass filtered device of flow data is transmitted to energy consumption data processing module；
The energy consumption data processing module includes the electric energy computation chip group as composed by three pieces three-phase electrical energy computation chip,
The electric energy computation chip group receives the three-phase voltage and current data of the energy consumption data acquisition module acquisition, and carries out to it
A/D conversion and calculation processing, to obtain corresponding energy consumption parameter, the energy consumption parameter is stored in posting in electric energy computation chip
In storage, the register and energy consumption data control transmission module data transmission are connected；
The energy consumption data control transmission module includes microcontroller, light-emitting diode display and matrix keyboard, and the LED is shown
Device and matrix keyboard are connect with the hardware interface of microcontroller respectively, and the microcontroller passes through SPI interface and the electric energy meter
Register in amount chip is connected, and the microcontroller reads the energy consumption parameter in the register in electric energy computation chip and carries out
Display, storage, the microcontroller transmit data to PC monitoring client by communication interface；
The PC monitoring client receives the data of microcontroller transmission by communication interface, and carries out figure by VB software programming
As drawing, energy consumption power curve is shown by human-computer interaction interface.
Preferably, the voltage transformer and current transformer are respectively connected to survey in numerical controlled machinery process equipment air switch
The three-phase voltage and three-phase current in air switch are measured, the low-pass filter is connected to each current transformer and electricity
After current transformer, for filtering out high-frequency noise and DC current gain after sampling in analog data signal, to improve signal
Anti-interference.
Preferably, mutual with the electric current of the same phase of measurement respectively per a piece of electric energy computation chip in the electric energy computation chip group
Sensor is connected with voltage transformer, and the sampled value that the phase current mutual inductor and voltage transformer acquire is calculated
Energy consumption parameter, and energy consumption parameter is stored in registers.
Preferably, the energy consumption parameter includes that sample rate current virtual value, sampled voltage virtual value, active power, three-phase have
Function power, machining equipment energy consumption, machining equipment process effective energy and machining equipment are processed
Journey capacity usage ratio.
Preferably, the light-emitting diode display is four seven sections of LED charactrons, wherein 1 is used for display channel number, 3 are used for
Show voltage, electric current and performance number, the keyboard that the matrix keyboard is one 4 × 3 is selected including 0~7 8 paths
Select number key, and control display mode, display status function key.
Preferably, in the energy consumption parameter shown in current effective value calculation formula such as formula (1):
In the energy consumption parameter shown in sampled voltage virtual value calculation formula such as formula (2):
Active power calculates shown in formula such as formula (3) in the energy consumption parameter:
In the energy consumption parameter shown in three phases active power calculation formula such as formula (4):
P=Pa+Pb+Pc(4)；
In the energy consumption parameter shown in machining equipment energy consumption calculation formula such as formula (5):
E=∫ Pdt (5)；
In the energy consumption parameter shown in machining equipment process effective energy calculation formula such as formula (6):
In the energy consumption parameter shown in machining equipment process capacity usage ratio calculation formula such as formula (7):
In above-mentioned formula (1)~(7), inIt is the instantaneous current value that n-th current transformer samples, unIndicate n-th
The instantaneous voltage value that voltage transformer samples, U (n) indicate that the effective voltage value that n-th is calculated, I (n) indicate n-th
The secondary current effective value being calculated, EeffIndicate the cutting effective energy of machining equipment, PUiIndicate that machining equipment adds
Work dynamical system is in revolving speed niUnder cut-in without ball power, Paux(t) indicate that the power of the specific auxiliary system of machining equipment, α indicate
Additional load coefficient when machining equipment is cut, tcskAt the beginning of indicating k-th of cutting process, tcekIt indicates k-th
The end time of cutting process, ηEIndicate that machining equipment process capacity usage ratio, k indicate k-th of cutting process, Ein
Indicate the total input energy of detection lathe, PinIndicate total input realtime power value of detection lathe, tinsAt the beginning of indicating detection
Between, tineIndicate the end time of detection.
Preferably, the voltage transformer is ZMPT101B type voltage transformer, and analog voltage output is within 250v
Alternating voltage, the current transformer are TA12-100 type current transformer, and input and output ratio is 5A/5mA, the low pass
Filter is TCL14 type Butterworth filter, and clock cutoff frequency ratio is 100:1, and error is less than ± 1%.
Preferably, the electric energy computation chip is single-phase electric energy metering chip, model SA9904B type electrical energy measurement
Chip.
Preferably, the microcontroller is the ARM chip of STM32F103C8T6 model, the ARM chip and the end PC
Between data transmission using shop layer communication network realize.
Preferably, the human-computer interaction interface includes energy consumption measurement module, energy consumption analysis module and result output module,
The energy consumption measurement module is used to measure the power data of machining equipment, including acquisition, display, store function, to real-time
Power curve while power data store/show in mechanical graphics process equipment process, the energy consumption analysis
Module be used for consumption information processing and analyze, statistic computer tool process equipment total energy consumption, machining equipment effective energy,
Machining equipment capacity usage ratio and machining equipment runing time, and machining equipment consumption information is depicted as machine
Tool process equipment energy distribution figure, the result output module are used to export the consumption information of personnel demand, including machining
Equipment total energy consumption, machining equipment effective energy and machining equipment capacity usage ratio.
Specific work steps of the invention is as follows:
S1: before carrying out energy consumption measurement using the measuring device, school the installation and calibration of measuring device: is carried out first
Table, will be in the voltage transformer and current transformer access machining equipment air switch in energy consumption data acquisition module；So
One section of dummy routine is run afterwards, is kept machining equipment in operating status and is measured its electric current, voltage, power and power consumption
Variation, the at this time installation of measuring device and calibration operation are completed, can start to the energy consumption data of numerical control machining equipment into
Row real time monitoring.
S2: the voltage transformer and current transformer in data acquisition module the acquisition and processing of energy consumption data: (1) are utilized
Three-phase voltage and electric current are acquired respectively；(2) after the data after sampling are filtered by Butterworth LPF, sampling is filtered out
High-frequency noise and DC current gain in signal carry out A/D conversion and calculation processing, obtain subsequently into electric energy computation chip group
It is stored in registers to corresponding energy consumption parameter, and by these energy consumption parameters；(3) register in electric energy computation chip with
It is connected between ARM chip by SPI interface, ARM chip can be read parameter therein and be shown, be stored, and ARM chip passes through
Matrix keyboard selects two-way or the multiplexer channel to carry out the data communication of the energy consumptions parameters such as voltage, electric current, power, electric energy, and benefit
The light-emitting diode display composed by four seven sections of LED charactrons completes the display of energy consumption data, wherein 1 is used to display channel
Number, 3 are used to show voltage, electric current, performance number, finally by the communication network of shop layer by the energy consumption data in microcontroller
It transmits to the end PC.
When the electric energy computation chip carries out calculation processing to sampled data, obtaining sample rate current according to formula (1) has
Valid value, obtains sampled voltage virtual value according to formula (2), obtains active power according to formula (3), obtains three according to formula (4)
Phase active power obtains machining equipment energy consumption according to formula (5), obtains machining equipment according to formula (6) and add
Work process effective energy obtains machining equipment process capacity usage ratio according to formula (7).Specific formula is as follows:
P=Pa+Pb+Pc (4)
E=∫ Pdt (5)
I in formulanIt is the instantaneous current value that n-th samples, unIndicate the instantaneous voltage value that n-th samples, U (n)
Indicate that the effective voltage value that n-th is calculated, I (n) indicate the current effective value that n-th is calculated, EeffIndicate detection machine
The cutting effective energy of tool process equipment, PUiIndicate machining equipment processing dynamics system in revolving speed niUnder cut-in without ball power,
Paux(t) indicate that the power of the specific auxiliary system of machining equipment, α indicate additional load system when machining equipment cutting
Number, tcskAt the beginning of indicating k-th of cutting process, tcekIndicate the end time η of k-th of cutting processEIt indicates mechanical to add
Construction equipment processes the capacity usage ratio of overall process, and k indicates k-th of cutting process, EinIndicate the total input energy of detection lathe,
PinIndicate total input realtime power value of detection lathe, tinsAt the beginning of indicating detection, tineIndicate the end time of detection.
S3: the power curve of machining equipment process is shown and energy consumption analysis: the end PC real-time reception microcontroller
The energy consumption data of transmission is simultaneously realized power curve by the human-computer interaction interface of Visual Basic software programming and is shown and machine
Tool process equipment energy consumption analysis.
The calling and program code that heretofore described human-computer interaction interface passes through control in Visual Basic software
Write, realize energy consumption data measuring device visual programming: by call TextBox (text box), Button (button),
The transmission of the controls such as Label (label) realization control command；By calling Mscomm control to realize host computer and ARM microcontroller
Between serial communication；By calling CWGraph control to realize, data and curves are shown.And it is total to count calculating such as machining equipment
Energy consumption, machining equipment effective energy, machining equipment capacity usage ratio and machining equipment runing time etc. are mechanical
Process equipment consumption information and mechanical graphics process equipment energy distribution figure carry out the energy consumption analysis of machining equipment component.
The above process is conventional technical means, and those skilled in the art can according to actual needs be designed human-computer interaction interface,
So not plus being described in detail.
The above is only a preferred embodiment of the present invention, it is noted that those skilled in the art come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of machining equipment energy consumption measurement device, which is characterized in that including energy consumption data acquisition module, energy consumption number
According to processing module, energy consumption data control transmission module and PC monitoring client, wherein
The energy consumption data acquisition module includes voltage transformer, current transformer and low-pass filter, the voltage transformer
Acquire the three-phase voltage and electric current of numerical controlled machinery process equipment, and the three-phase voltage and electric current number acquired respectively with current transformer
Energy consumption data processing module is transmitted to according to low-pass filtered device；
The energy consumption data processing module includes the electric energy computation chip group as composed by three pieces three-phase electrical energy computation chip, described
Electric energy computation chip group receives the three-phase voltage and current data of the energy consumption data acquisition module acquisition, and carries out A/D to it
Conversion and calculation processing, to obtain corresponding energy consumption parameter, the energy consumption parameter is stored in the deposit in electric energy computation chip
In device, the register and energy consumption data control transmission module data transmission are connected；
Energy consumption data control transmission module includes microcontroller, light-emitting diode display and matrix keyboard, the light-emitting diode display and
Matrix keyboard is connect with the hardware interface of microcontroller respectively, and the microcontroller passes through SPI interface and the electrical energy measurement core
Register in piece is connected, and the energy consumption parameter that the microcontroller is read in the register in electric energy computation chip is shown
Show, store, the microcontroller transmits data to PC monitoring client by communication interface；
The PC monitoring client receives the data of microcontroller transmission by communication interface, and carries out image by VB software programming and draw
System shows energy consumption power curve by human-computer interaction interface.
2. a kind of machining equipment energy consumption measurement device according to claim 1, which is characterized in that the voltage
Mutual inductor and current transformer are respectively connected to measure the three-phase voltage in air switch in numerical controlled machinery process equipment air switch
And three-phase current, the low-pass filter is connected to after each current transformer and current transformer, for filtering out
Fall the high-frequency noise and DC current gain after sampling in analog data signal, to improve the anti-interference of signal.
3. a kind of machining equipment energy consumption measurement device according to claim 1, which is characterized in that the electric energy
It is connected respectively with the current transformer and voltage transformer for measuring same phase in metering chip group per a piece of electric energy computation chip,
And it carries out the sampled value that the phase current mutual inductor and voltage transformer acquire that energy consumption parameter is calculated, and energy consumption parameter is deposited
It is stored in register.
4. a kind of machining equipment energy consumption measurement device according to claim 1 or 3, which is characterized in that described
Energy consumption parameter includes sample rate current virtual value, sampled voltage virtual value, active power, three phases active power, machining equipment
Energy consumption, machining equipment process effective energy and machining equipment process capacity usage ratio.
5. a kind of machining equipment energy consumption measurement device according to claim 4, which is characterized in that the LED
Display is four seven sections of LED charactrons, wherein 1 is used for display channel number, 3 are used to show voltage, electric current and performance number,
The keyboard that the matrix keyboard is one 4 × 3 selects number key, and control display side including 0~7 8 paths
Formula, display status function key.
6. a kind of machining equipment energy consumption measurement device according to claim 4, which is characterized in that the energy consumption
In parameter shown in current effective value calculation formula such as formula (1):
In the energy consumption parameter shown in sampled voltage virtual value calculation formula such as formula (2):
Active power calculates shown in formula such as formula (3) in the energy consumption parameter:
In the energy consumption parameter shown in three phases active power calculation formula such as formula (4):
P=Pa+Pb+Pc(4)；
In the energy consumption parameter shown in machining equipment energy consumption calculation formula such as formula (5):
E=∫ Pdt (5)；
In the energy consumption parameter shown in machining equipment process effective energy calculation formula such as formula (6):
In the energy consumption parameter shown in machining equipment process capacity usage ratio calculation formula such as formula (7):
In above-mentioned formula (1)~(7), inIt is the instantaneous current value that n-th current transformer samples, unIndicate n-th voltage
The instantaneous voltage value that mutual inductor sample obtains, U (n) indicate that the effective voltage value that n-th is calculated, I (n) indicate n-th meter
Obtained current effective value, EeffIndicate the cutting effective energy of machining equipment, PUiIndicate that machining equipment processing is dynamic
Force system is in revolving speed niUnder cut-in without ball power, Paux(t) indicate that the power of the specific auxiliary system of machining equipment, α indicate mechanical
Additional load coefficient when process equipment is cut, tcskAt the beginning of indicating k-th of cutting process, tcekIndicate k-th of cutting
The end time of process, ηEIndicate that machining equipment process capacity usage ratio, k indicate k-th of cutting process, EinIt indicates
Detect the total input energy of lathe, PinIndicate total input realtime power value of detection lathe, tinsAt the beginning of indicating detection,
tineIndicate the end time of detection.
7. a kind of machining equipment energy consumption measurement device according to claim 1, which is characterized in that the voltage
Mutual inductor is ZMPT101B type voltage transformer, and analog voltage output is alternating voltage within 250v, the current transformer
For TA12-100 type current transformer, input and output ratio is 5A/5mA, and the low-pass filter is TCL14 type Butterworth
Filter, and clock cutoff frequency ratio is 100:1, error is less than ± 1%.
8. a kind of machining equipment energy consumption measurement device according to claim 1, which is characterized in that the electricity
Energy metering chip is single-phase electric energy metering chip, model SA9904B type electric energy computation chip.
9. a kind of machining equipment energy consumption measurement device according to claim 4, which is characterized in that described is micro-
Controller is the ARM chip of STM32F103C8T6 model, and the data transmission between the ARM chip and the end PC uses shop layer
Communication network realize.
10. a kind of machining equipment energy consumption measurement device according to claim 1, which is characterized in that described
Human-computer interaction interface includes energy consumption measurement module, energy consumption analysis module and result output module, and the energy consumption measurement module is used for
The power data of machining equipment, including acquisition, display, store function are measured, realtime power data store/show
While mechanical graphics process equipment process in power curve, the energy consumption analysis module be used for consumption information processing
And analysis, statistic computer tool process equipment total energy consumption, machining equipment effective energy, machining equipment capacity usage ratio
With machining equipment runing time, and machining equipment consumption information is depicted as machining equipment energy distribution figure,
The result output module is used to export the consumption information of personnel demand, including machining equipment total energy consumption, machining are set
Standby effective energy and machining equipment capacity usage ratio.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110764464A (en) * | 2019-11-12 | 2020-02-07 | 红河学院 | Numerical control machine tool control method based on energy consumption optimization and numerical control machine tool |
| CN115689095A (en) * | 2022-12-30 | 2023-02-03 | 广东美的制冷设备有限公司 | Equipment energy consumption analysis method and device, production system and storage medium |
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| CN115689095B (en) * | 2022-12-30 | 2023-04-14 | 广东美的制冷设备有限公司 | Equipment energy consumption analysis method, device, production system and storage medium |
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