CN104898580A - Wireless oil pumping unit controller with three-phase electric acquisition - Google Patents
Wireless oil pumping unit controller with three-phase electric acquisition Download PDFInfo
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- CN104898580A CN104898580A CN201410076960.6A CN201410076960A CN104898580A CN 104898580 A CN104898580 A CN 104898580A CN 201410076960 A CN201410076960 A CN 201410076960A CN 104898580 A CN104898580 A CN 104898580A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a wireless oil pumping unit controller with three-phase electric acquisition. The wireless oil pumping unit controller comprises a processor module, an I/O input output module, a three-phase electric acquisition module, a local communication module, a liquid crystal display module, a power management module, a data remote transmission interface module, and a WIA wireless communication module, wherein the I/O input output module, the three-phase electric acquisition module, the local communication module, the liquid crystal display module, the power management module, the data remote transmission interface module, and the WIA wireless communication module are connected with the processor module. The wireless oil pumping unit controller supports wired and wireless communication, achieves full automation at an oil field, monitors the running state of an oil pumping unit in real time, provides conditions for timely fault processing, decreases a large amount of labors, facilitates human resource configuration optimization, and simplifies the wiring and the arrangement of field equipment.
Description
Technical field
The present invention relates to a kind of oil pumper RTU(REMOTE TERMINAL UNIT being applied to the WIA-PA wireless communication of Oil Field well head) controller.
Background technology
Maintain the primary target of the high yield Shi Ge oil recovery factory of crude oil; wanting to maintain high yield must while exploitation grease hole; guarantee that every mouthful of well moment all remains on optimum Working; so each oil recovery factory the monitoring of oil pumper as a daily important process; periodical inspection oil pumper; monitoring oil pumper duty, damages if any abnormal or shutdown, will debug maintenance.
The walking-beam pumping unit that current oil field is used, its control circuit, simple air switch or A.C. contactor is only had to control, can not accomplish to understand in real time and monitoring to the electric parameter of circuit, when the situations such as motor generation overcurrent, overvoltage can not make corresponding technical finesse in time, will motor damage time serious, cause the accident of stopping well.
In Petroleum Production, oil well is all generally irregularly be distributed in the region of relative distribution, and the road conditions between oil well are also very complicated, some road be inadequate by sidewalk, current oil field generally adopts manual patrol, make an inspection tour a circle to neither an easy thing teams and groups, particularly sleet sky difficulty is larger, floor manager's a bite oil well within a tour cycle can only arrive once, two minor tick regular hours, this just causes oil well and occurs exception or fault and teams and groups also do not know, must wait until that next floor manager arrives and could find, not only have impact on output, also can expand owing to processing fault coverage not in time.Although present oil pumper data collection form is varied, be rely on to patrol and examine that workman carries various simulation, digital watch is patrolled and examined mostly, in-site installation test instrumentation also tests various data.And the precision of old-fashioned instrument also can not meet present test request far away.So this manual patrol drawback has just shown especially out, need further technological innovation to liberate manpower, realized Automated condtrol.
Along with the raising of robotization, communication, computer networking technology, there is the oil pumper RTU controller played an important role in oil field automation detection, supervising the network in field production management field.The control of primary responsibility well on the beam and oil pumper.Wireless technology has broad prospects in the application of oil field shaft mouth.
Intelligent wireless network WIA technology is the standard based on short-distance wireless communication IEEE802.15.4, it is the Radio Network System for industrial measurement and control, use free frequency band, there is highly reliable, super low-power consumption, very strong antijamming capability, real-time Communication for Power ad hoc multihop wireless sensor network technology, be applicable to being deployed in the region that rugged surroundings and people should not arrive.WIA solves the multipath effect that the various large-scale apparatus, metallic conduit etc. that spread all under rugged surroundings cause the reflection of wireless signal, scattering, and motor, apparatus running time produce electromagnetic noise to the interference of radio communication, highly reliable, the real-time wireless communication service that can meet application demand are provided.At present, WIA-PA has become with wireless Wireless HART by one of two international standard files admitting simultaneously.Intelligent wireless network WIA technology is specially adapted to Industry Control and plant processes control field.WIA radio communication requires to use wireless technology and field device communicating, and wireless technology simplifies wiring and the setting of field apparatus.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of can automatically gather three phase electrical parameters in oil well based on WIA-PA wireless oil pumper RTU controller.
The technical scheme that the present invention is adopted for achieving the above object is:
There is the wireless pumping unit controller that three-phase electricity gathers, comprise processor module and connected I/O input/output module, three-phase electricity acquisition module, Local Communication Module, LCD MODULE, power management module, data remote interface module and WIA wireless communication module.
Described three-phase electricity acquisition module adopts resistance, current transformer, power measurement IC and signal isolating chip; After multiple resistance that is often in series of three-phase alternating current, be connected with the voltage input channel of power measurement IC by wave filter, often mutually also by voltage dependent resistor (VDR) ground connection; Three current transformers are each passed through three-phase alternating current electric wire, the parallel circuit of a resistance and two resistance of connecting is connected with between the positive-negative output end of each current transformer, be connected with amplitude limiter circuit between the two ends of parallel circuit, the two ends of amplitude limiter circuit are connected with the electric current input channel of power measurement IC by filtering circuit; The output terminal of power measurement IC is connected with processor module through signal isolating chip.
Input end and the parallel circuit being connected with resistance, two electric capacity of connecting and an electric capacity between ground of described wave filter; The two ends of electric capacity are connected with the voltage input channel of power measurement IC respectively; Another resistance is also connected with, the node ground connection between the electric capacity of two series connection between one end of resistance eutral grounding and one end of two capacity earths of connecting.
Described amplitude limiter circuit is the bidirectional transient voltage suppressor of two series connection, the node ground connection between two bidirectional transient voltage suppressors.
Described filtering circuit comprises resistance and electric capacity; Two input ends of filtering circuit are connected respectively by the input end of resistance with power measurement IC, are connected with two electric capacity of series connection and the parallel circuit of an electric capacity between two input ends of power measurement IC; Node ground connection between two electric capacity of series connection.
The present invention has following beneficial effect and advantage:
1. the present invention can support wired and wireless telecommunications simultaneously, achieves the full-automation of Oil Field, not only achieves the real-time monitoring of oil pump running situation, for timely handling failure provides condition, has also liberated a large amount of manpower, has been conducive to human resources allocation optimization.Wireless technology simplifies wiring and the setting of field apparatus, optimizes field wiring and installation.
2. three-phase electricity acquisition module of the present invention adopts isolation technology, achieves isolation, ensure that the security of RTU itself with other parts of RTU.
3. present invention achieves RTU and electric quantity acquisition integrated design, RTU controller is pumping unit of well mouth data sampling and processing, opertaing device, carries out data sampling and processing and storage and forward the data of various input quantity.
Accompanying drawing explanation
Fig. 1 is the Organization Chart of oilfield WIA TT&C system of the present invention;
Wherein, 10,11,12 instrument, 13,14,15WIA wireless RTU controller, 16WIA gateway, 17 Central Control Rooms;
Fig. 2 is the wireless pumping unit controller structure composition frame chart based on WIA-PA;
Wherein, 20 shells, 21I/O input/output module, 22 three-phase electricity acquisition modules; 23 Local Communication Module, 24 processor modules, 25 LCD MODULE, 26 power management modules; 27 data remote interface modules, 28WIA-PA wireless communication module, 29 antenna patchcords, 30 antennas;
Fig. 3 is three-phase electricity acquisition module functional block diagram;
Wherein, 31 three-phase alternating currents, 32 voltage transformer (VT) or divider resistance, 33 current transformers, 34 signal conditioning circuits, 35 power measurement IC, 36 signal isolating chips, 37MCU, 38 power isolation module;
Fig. 4 is single-phase voltage circuit diagram in three-phase electricity acquisition module;
Fig. 5 is electric current front-end circuit schematic diagram in three-phase electricity acquisition module.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Based on the framework of WIA-PA wireless oil pumper RTU controller in oilfield WIA TT&C system as shown in Figure 1.The instrument (10,11,12) that oil field shaft mouth is installed comprises WIA wireless indicator, the instrument such as WIA wireless temperature table, WIA wireless pressure table and WIA wireless streams scale, the information collected is sent to (13,14,15) in the wireless pumping unit controller of WIA (RTU) of well head by WIA wireless network by these instrument, the Information Monitoring of the three phase electrical parameters itself gathered and instrument is carried out storing, managing and be forwarded to WIA gateway 16 by oil pumper RTU controller, by WIA gateway 16, data is being uploaded to central control room (CCR) 17 by Ethernet.WIA gateway 16 receives the instruction of central control room (CCR) 17, then is issued to pumping unit of well mouth RTU controller by communication, carries out the start and stop controlling on-the-spot oil pumper.
Based on the wireless oil pumper RTU controller of WIA-PA based on ARM platform development, adopt 32 bit processors, and integrated electric quantity acquisition function, the data information acquisition of industry spot and the function such as Long-distance Control, fault alarm of field apparatus can be realized, there is the features such as reliability is high, processing speed fast, communication is stable, maintenance cost is low.
Based on WIA-PA wireless pumping unit controller structure composition frame chart as shown in Figure 2, mainly comprise shell 20 and be arranged at the electron device composition in shell 20, mainly comprise I/O input/output module 21, three-phase electricity acquisition module 22, Local Communication Module 23, processor module 24, liquid crystal display 25, power management module 26, data remote interface module 27 and WIA-PA wireless communication module 28.
I/O input/output module 21 mainly comprises 8 tunnels (AI) analog input interface, 4 tunnels (DI) digital-quantity input interface, 4 tunnels (DO) digital-quantity output interface.
Analog input interface supports the input of 4-20mA signal, for connecting live cable instrument, uses isolating chip to carry out signal isolation between input signal and CPU.
Digital-quantity input interface is used for collection site signal status information, supports 12V/24V input.
Digital-quantity output interface is used to indicate the instruction of lamp state and field control, and field control adopts relay to export.Each road exports support normally opened contact and a normally closed contact, for controlling the start and stop of motor and audio alert switch etc.
Three-phase electricity acquisition module 22 is responsible for the phase current, phase voltage, active power, reactive power, the applied power that gather oil pumper, power factor (PF), the electrical quantitys such as frequency, the big current of motor and large voltage transition are small area analysis and small voltage by mutual inductor, the signal that mutual inductor exports is changed into the signal form that processor can accept to mate by signal conditioning circuit, power measurement IC, to the voltage and current signal analysis and processing of input, calculates corresponding result electric parameter.
Local Communication Module 23 supports 1 RS232,1 RS485,1 10M/100M Ethernet interface, and above interface all supports upgrading RTU program, local display, and local configuring maintenance RTU.
Processor module 24 comprises processor (MCU) and storer, is responsible for the operation controlling whole field apparatus, the data that Storage and Processing itself gathers and the data that other field apparatuss are sent.
Measured signal is become a kind of form can understood for people by LCD MODULE 25, comprises data display, curve, chart etc., for people's field observation and analysis.
Power management module 26 provides the energy needed for operation for oil pumper RTU controller.Power management module makes field apparatus have power supply status Real-Time Monitoring/fault alarm function, is convenient to timely maintenance.The power supply of power management module is generally 24V and powers, by internal electric source conversion chip for each module provides the supply voltage needed separately.Interiorly adopt insulating power supply form with between each unit, prevent the mutual interference between unit.
Data remote interface module 27 comprises supports WIA-PA wireless network choosing band module, is the GPRS teletransmission interface module of the support GPRS that subsequent expansion designs, supports the teletransmission interface module of WIFI.
WIA wireless communication module 28 is responsible for carrying out radio communication with other instrument of well head, other pumping unit of well mouths RTU controller, WIA gateway, exchange of control information and transmitting-receiving image data.Processor module 24 and WIA wireless communication module 28 carry out two-way communication by serial ports.WIA wireless communication module comprises radio frequency communications circuitry, and some antennas trace comprises on a printed circuit board, and radiofrequency signal is transmitted by PCB antenna seat, Coaxle cable antenna patchcord 29 and antenna 30 by radiofrequency signal.
Electric quantity acquisition function and RTU are achieved integrated design by the present invention, electricity and associate framework as shown in Figure 3 with RTU integrated design.
31 is the three-phase alternating current detected, oil field is the supply line of oil pumper, three-phase electricity acquisition module gathers three-phase alternating current piezoelectric voltage, current signal, voltage is through divider resistance or voltage transformer (VT) 32, electric current is through high precision current transformer 33, large-signal is converted to small-signal, then the conditioning of signal is carried out by signal conditioning circuit 34, signal after power measurement IC35 real-time sampling process conditioning, draw single-phase phase voltage, phase current effective value, applied power, active power, reactive power, power factor, the information such as line frequency, MCU reads the data after metering IC conversion by spi bus.In the present embodiment, power measurement IC adopts cirrus logic single-phase power IC chip, A, B, C phase utilizing three to be respectively used to alternating current, be combined into three phase power collection, isolating chip adopts optocoupler and digital isolator, and signal conditioning circuit comprises resistance, wave filter, amplitude limiter circuit and filtering circuit.
Fig. 4,5 is single-phase voltage in three-phase electricity acquisition module and electric current front-end circuit schematic diagram, and UA is the A phase of three-phase electricity, and RV5 is voltage dependent resistor (VDR), forms the surge protection on line of electric force, reaches anti-lightning strike object.R115, R153, R154, R155, R103 are divider resistance, make the input signal limit volt of VIN+ and VIN-below the maximum input voltage of power measurement IC requirement, be not limited to 5 resistance here, can adopt multiple resistance, increase the stability of system by dividing potential drop.Meanwhile, R103, R104, C60, C61, C66 shaping filter, carries out filtering to signal.
As shown in Figure 5, U23 is current transformer, and big current is transformed to small area analysis, and current transformation is voltage by R118, by selecting resistance value, by the voltage of IINA+ and IINA-limit volt below the maximum input voltage of power measurement IC requirement.R119 and R120 makes signal be transformed to differential signal simultaneously, and bidirectional transient voltage suppressor D27, D28 form voltage limiter circuit, by large voltage amplitude limit below the acceptable maximum voltage of chip.R121 and R122 is current-limiting resistance, and meanwhile, R121, R122, C69, C70, C71 form filtering circuit, carry out filtering to signal.
The present invention is designed to three-phase alternating current electric parameter measurement, is the measurement of three-phase electricity, measures respectively, being added, calculating three-phase combination phase electrical quantity by closing three-phase electricity by three single-phase power metering IC chip portfolios.Have three-phase three-wire system and three-phase four-wire system self-adapting estimation function, stateless indicates, and can directly judge from the mode of connection, three-wire system does not connect N line, and four-wire system connects N line.There is map of current collection, power diagram collection, the uneven alarm of three-phase electricity, the electric quantity acquisition functions such as three-phase electric power open phase alarm.
Electric current conversion is realized by current transformer, and voltage transitions can pass through voltage transformer (VT), also can pass through large electric resistance partial pressure.The precision of current transformer can affect the accuracy of metering, therefore, high precision current transformer selected by current transformer, use voltage transformer (VT) can affect the phase angle of voltage, the design adopts the method for electric resistance partial pressure, the resistance that high precision, power are large, temperature stability is good must be selected at the resistance being transformed to small-signal, and multiple resistant series, ensure the precision measuring switching signal.Whole unit introduces the forceful electric power of electric system; consider power-supply fluctuation and the security of system of power line and load; adopt the voltage dependent resistor (VDR) instantaneous voltage protected because of electric power supply system to suddenly change may to the injury of circuit; when high pressure arrives; the resistance of voltage dependent resistor (VDR) reduces and is shunted by electric current; prevent from being subject to large instantaneous voltage to destroy and interference, and protect responsive electronic package.System also adopts TVS protective current input port to carry out overvoltage protection.
Three-phase electricity acquisition module energize portions power supply is kept apart by power isolation module 38 and other power supplys (power management module 26), and for powering to power measurement IC, signal isolating chip, the present embodiment adopts isolated from power chip.Serial line interface adopts (25M) isolating device isolation at a high speed.Other I/O interfaces adopt common optical coupler isolation, by the forceful electric power of introducing and other parts of RTU are completely isolated comes, protect the security of RTU veneer completely.
RTU supports long-range start and stop well controlling functions, and workflow is: RTU passes through three-phase electricity voltage, current detecting oil pumper running status, if current state is for running, then opening well order does not perform; After Qi Jing, RTU reception Central Control Room opens well order, by DO0 digital output to phonetic alarm, phonetic alarm sends 1min phonic warning, opens oil pumper afterwards by DO1; Stop well, after RTU reception Central Control Room stops well order, close oil pumper by DO2.
Controlling functions realizes relying on number connect test port and the design of three-phase electricity collecting unit, and the input of hardware design upper port realizes 2500V isolating and protecting by special photoelectric isolating chip, and adopts CPU interrupting input to promote the response time; Output port realizes isolating and protecting by photoelectric isolated chip equally, and output port form is that relay exports.
During Qi Jing operation, RTU detects current oil pumper running status after receiving and opening well order, if current state is for running, does not then perform and opens well order, reporting current state for opening well information; If current state for shutting down, then opens well information after reporting 1 minute.Whether complete rear detection current state starts, starts and then reports Qi Jing to complete information, do not start, report and open well failure message.
When stopping well operation, RTU performs and stops well order after receiving and stopping well order.Detect current state whether to shut down, shut down to report and stop well and complete information, do not shut down, report and stop well failure message.
Claims (5)
1. there is the wireless pumping unit controller that three-phase electricity gathers, it is characterized in that: comprise processor module (24) and connected I/O input/output module (21), three-phase electricity acquisition module (22), Local Communication Module (23), LCD MODULE (25), power management module (26), data remote interface module (27) and WIA wireless communication module (28).
2. a kind of wireless pumping unit controller having three-phase electricity and gather according to claim 1, is characterized in that: described three-phase electricity acquisition module (22) adopts resistance, current transformer (33), power measurement IC(35) and signal isolating chip (36); After multiple resistance that is often in series of three-phase alternating current, by wave filter and power measurement IC(35) voltage input channel be connected, often mutually also by voltage dependent resistor (VDR) ground connection; Three current transformers (33) are each passed through three-phase alternating current electric wire, the parallel circuit of a resistance (R118) and two resistance (R119, R120) connected is connected with between the positive-negative output end of each current transformer (33), be connected with amplitude limiter circuit between the two ends of parallel circuit, the two ends of amplitude limiter circuit are by filtering circuit and power measurement IC(35) electric current input channel be connected; Power measurement IC(35) output terminal be connected with processor module (24) through signal isolating chip (36).
3. a kind of wireless pumping unit controller having three-phase electricity and gather according to claim 2, is characterized in that: the input end of described wave filter and the parallel circuit being connected with resistance (R103), two electric capacity of connecting (C60, C61) and an electric capacity (C66) between ground; The two ends of electric capacity (C66) respectively with power measurement IC(35) voltage input channel be connected; One end of resistance (R103) ground connection is also connected with another resistance (R104) with between one end of two electric capacity of connecting (C60, C61) ground connection, the node ground connection between the electric capacity (C60, C61) of two series connection.
4. a kind of wireless pumping unit controller having three-phase electricity and gather according to claim 2, is characterized in that: described amplitude limiter circuit is the bidirectional transient voltage suppressor of two series connection, the node ground connection between two bidirectional transient voltage suppressors.
5. a kind of wireless pumping unit controller having three-phase electricity and gather according to claim 2, is characterized in that: described filtering circuit comprises resistance and electric capacity; Two input ends of filtering circuit are respectively by resistance and power measurement IC(35) input end be connected, power measurement IC(35) two input ends between be connected with two electric capacity (C69, C70) of series connection and the parallel circuit of an electric capacity (C71); Node ground connection between two electric capacity (C69, C70) of series connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410076960.6A CN104898580A (en) | 2014-03-04 | 2014-03-04 | Wireless oil pumping unit controller with three-phase electric acquisition |
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| CN201410076960.6A CN104898580A (en) | 2014-03-04 | 2014-03-04 | Wireless oil pumping unit controller with three-phase electric acquisition |
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| CN105356680A (en) * | 2015-12-15 | 2016-02-24 | 武汉无为广域网络能源股份有限公司 | Intelligent operation and maintenance system of power generator |
| CN105511364A (en) * | 2016-01-27 | 2016-04-20 | 大庆参勃电器有限公司 | Combination motor parameter collection and control device |
| CN106285637A (en) * | 2016-08-04 | 2017-01-04 | 王立鹏 | Oil pumping machine fault early warning long-distance monitorng device |
| CN106597089A (en) * | 2016-12-16 | 2017-04-26 | 中国石油天然气股份有限公司 | Electric energy online monitoring and metering integrated device for oil field pumping unit well field |
| CN109493580A (en) * | 2017-09-11 | 2019-03-19 | 奥维飞越通信有限公司 | One kind being based on WIA-PA Multifunctional hand-held machine control system |
| CN114137295A (en) * | 2021-11-27 | 2022-03-04 | 台州安耐杰电力设备有限公司 | Three-phase circuit data measurement and control device |
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| CN106597089A (en) * | 2016-12-16 | 2017-04-26 | 中国石油天然气股份有限公司 | Electric energy online monitoring and metering integrated device for oil field pumping unit well field |
| CN109493580A (en) * | 2017-09-11 | 2019-03-19 | 奥维飞越通信有限公司 | One kind being based on WIA-PA Multifunctional hand-held machine control system |
| CN109493580B (en) * | 2017-09-11 | 2024-05-24 | 中泓慧联技术有限公司 | Control system of multifunctional handset based on WIA-PA |
| CN114137295A (en) * | 2021-11-27 | 2022-03-04 | 台州安耐杰电力设备有限公司 | Three-phase circuit data measurement and control device |
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Application publication date: 20150909 |