CN103926898A - System for monitoring power quality of ocean module drilling machine - Google Patents
System for monitoring power quality of ocean module drilling machine Download PDFInfo
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- CN103926898A CN103926898A CN201410160668.2A CN201410160668A CN103926898A CN 103926898 A CN103926898 A CN 103926898A CN 201410160668 A CN201410160668 A CN 201410160668A CN 103926898 A CN103926898 A CN 103926898A
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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
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- 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
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Abstract
The invention provides a system for monitoring power quality of an ocean module drilling machine. The system comprises an equipment layer, a communication layer and a management layer. The equipment layer comprises a power quality monitoring instrument, a thermograph and a hygrograph of a DSM module, and a power quality monitoring instrument, a thermograph and a hygrograph of a DES module. The communication layer comprises an Ethernet switch, a communication manager of the DSM module and a communication manager of the DES module, wherein the communication manager of the DSM module and the communication manager of the DES module are connected with the Ethernet switch. The management layer comprises a monitoring server and a remote monitoring system, wherein monitoring software is arranged in the monitoring server. Data transmission is conducted between the equipment layer and the management layer through the communication layer, the monitoring server and the remote monitoring system are used for storing, analyzing data from the equipment layer, providing report forms for the data from the equipment layer, and outputting control instructions to the equipment layer. Manual copying workloads of operators on duty can be relieved, the technical support is provided for early warning of accidents at the early stage and reason analysis of the accidents at the later stage, and complete drilling machine operating state real-time data information and analysis are provided.
Description
Technical field
The present invention relates to power quality supervisory information system, particularly a kind of marine module drilling rig power quality supervisory information system.
Background technology
Marine module drilling rig had obtained a large amount of application in marine sites such as the CNOOC Bohai Sea, the South Sea in recent years, module drilling machine is divided into support module (being called for short DSM module) and drilling machine module (vehicle economy S module), wherein, the major equipment of DES module comprises derrick, winch and drilling well utility appliance thereof, the control system of winch and utility appliance thereof etc., the major equipment of DSM module comprises steam piano, charge pump, auxiliary diesel engine and utility appliance thereof.At present, the control system of DES module and DSM module adopts the control system taking Programmable Logic Controller (hereinafter to be referred as PLC) as core more, and it is the mode of making a copy of data that the collection of facility information is adopted to people.There is following deficiency in the module drilling machine control system taking PLC as core: its Data Collection and storage, main electric equipment operation abnormal alarm, fault analysis, data sheet automatically generate etc. intelligent aspect, can not meet the demands; Need people be carry out that electrical equipment is patrolled and examined, the analysis of the record of data, fault, greatly increase operator on duty's workload, and can not accomplish the continuity of Data Collection, artificial data make a copy of the data across comparison that can not accomplish with other system, can not accurately embody the ruuning situation of electrical energy system and other system under whole drilling condition; And PLC can not meet the collection of well data, the needs of memory function, more can not analyze energy data, when occurring main electrical power plant shutdown, when the accidents such as main circuit breaker shutoff, can only carry out artificially crash analysis, analyze difficulty larger, analysis on accident cause accuracy is lower; Due to the limitation of the function of PLC device own, data communication and function of exchange aspect can not meet the requirement of mass data fast transport.
Summary of the invention
The present invention provides a kind of marine module drilling rig power quality supervisory information system that can automatically carry out mass data storage, analysis, communication and form for solving the technical matters existing in known technology.
The technical scheme that the present invention takes for the technical matters existing in solution known technology is: a kind of power quality supervisory information system of marine module drilling rig, comprise: mechanical floor, communication layers and administration and supervision authorities, wherein, described mechanical floor comprises: electric energy quality monitor table, thermometer and the hygronom of DSM module, and electric energy quality monitor table, thermometer and the hygronom of DES module; Described communication layers comprises: Ethernet switch, and the DSM module communication supervisor being connected with this Ethernet switch and DES module communication supervisor; Described administration and supervision authorities comprise: the monitoring server of built-in monitoring software and long distance control system; Between described mechanical floor and described administration and supervision authorities, carry out data transmission by described communication layers, described monitoring server and described long distance control system, read, store, analyze, provide form to the data from described mechanical floor, output steering order is to described mechanical floor.
The working power of described communication layers connects harmonic wave and suppresses module, and the frequency of operation that described harmonic wave suppresses module is 2kHz～10MHz.
Described DSM module communication supervisor and described DES module communication supervisor are multi-protocol communication supervisor.
Described communication layers also comprises photoelectric commutator, and described DES module communication supervisor is communicated by letter with described Ethernet switch by described photoelectric commutator.
Between described DES module communication supervisor and described photoelectric commutator, adopt two slacks to be connected.
Electric energy quality monitor table, thermometer and the hygronom of described DSM module, successively by described DSM module communication supervisor and described Ethernet switch, and transmission information between described administration and supervision authorities.
Also comprise internal heat system and drilling instrument system, described internal heat system and described drilling instrument system by described communication layers and and described administration and supervision authorities between transmission information.
Also comprise remote monitoring screen and acoustic-optic alarm, described remote monitoring screen is connected with Ethernet switch, and for showing quality of power supply situation, described acoustic-optic alarm is connected with monitoring server, carries out sound and light alarm under abnormal conditions.
Between described mechanical floor and described communication layers, adopt ProfiBus fieldbus.
Advantage and good effect that the present invention has are: administration and supervision authorities and communication layers are set, the built-in operation of administration and supervision authorities and management software, read, store, analyze, provide form to the data from described mechanical floor, output steering order is to described mechanical floor, solve traditional electric-control system and do not possess digitizing, an intelligentized difficult problem, reducing operator on duty people is the workload of making a copy of electrical operation parameter, and reviewing and technical data analysis support of the early warning in early stage of accident and the generation reason of post incident is provided; By and the other system (internal heat system, drilling instrument system, heating ventilation and air-conditioning system etc.) of module drilling machine between exchanges data, can provide complete rig operation conditions waveform of real-time data and analysis for on-the-spot drill-well operation personnel and long-range supervisory engineering staff, for the drilling well of next stage provides technical guarantee.The quality of power supply and the main equipment ruuning situation of native system during to the whole drilling well of module drilling machine is carried out collection and the analysis of data, and can form in conjunction with the other system such as drilling instrument the working report of every day, energy-conservation manpower and materials, and can improve accuracy and the continuity that data are made a copy of.While can provide the connecting interface with the electric system of platform upper chunk, so that field management person understands ruuning situation and the duty of whole platform power equipment in real time, makes the whole quality of power supply intelligent management of platform Oilfield Group reach a new level.
This power quality supervisory information system, can improve the intelligent degree of whole module drilling machine, and has promoted oilfield construction engineering corporation in module drilling machine design-build ability.This power quality supervisory information system successful Application in HZ25-8 module drilling machine and EP24-2 module drilling machine and tri-module drilling machine projects of XJ24-3.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of power quality supervisory information system of marine module drilling rig, comprise: mechanical floor, communication layers and administration and supervision authorities, wherein, described mechanical floor comprises: electric energy quality monitor table, thermometer and the hygronom of DSM module, and electric energy quality monitor table, thermometer and the hygronom of DES module; Described communication layers comprises: Ethernet switch, and the DSM module communication supervisor being connected with this Ethernet switch and DES module communication supervisor; Described administration and supervision authorities comprise: the monitoring server of built-in monitoring software and long distance control system; Between described mechanical floor and described administration and supervision authorities, carry out data transmission by described communication layers, described monitoring server and described long distance control system, read, store, analyze, provide form to the data from described mechanical floor, output steering order is to described mechanical floor.Described long distance control system can be positioned at platform chunk or land, can comprise in addition remote monitoring screen and acoustic-optic alarm, described remote monitoring screen is connected with Ethernet switch, can be used for showing quality of power supply situation, described acoustic-optic alarm is connected with monitoring server, can be used for the sound and light alarm that carries out under abnormal conditions.
In order to make the impact of communication layers harmonic carcellation, reliably working, the working power of described communication layers can connect harmonic wave and suppress module, and the frequency of operation that described harmonic wave suppresses module can be 2kHz～10MHz.
Communication manager is also referred to as DPU, and it has multiple downgoing communication interfaces and one or more uplink network interface, after the communication data of multiple mechanical floors output is aggregated, delivers to upper management layer in real time, in order to realize remote signalling, telemetry function.
For the ease of connecting the measuring instrument with different communication interfaces, the DSM module communication supervisor of native system and DES module communication supervisor can adopt multi-protocol communication supervisor, in it, establish CPU processor, this CPU processor can connect respectively multiple descending serial ports converting units and mechanical floor carries out communication; This CPU processor also connects ethernet controller simultaneously and up serial ports converting unit realizes and the communication of host computer; It supports various communications protocol, and abundant interface is provided, and the communication that realizes different measuring and controlling equipments and administration and supervision authorities is interconnected; Realize the information of the quality of power supply to whole marine module drilling rig, and concentrate and be sent to monitoring server or long distance control system, by extremely each measure and control device of the command transfer of monitoring server or long distance control system, realize local or remote control simultaneously.
Electric energy quality monitor table, thermometer and the hygronom etc. of described DSM module, can pass through described DSM module communication supervisor and described Ethernet switch successively, and transmission information between described administration and supervision authorities.
Described communication layers also can comprise photoelectric commutator, and described DES module communication supervisor can be communicated by letter with described Ethernet switch by described photoelectric commutator.Electric energy quality monitor table, thermometer and the hygronom etc. of described DES module, can pass through successively described DES module communication supervisor, described photoelectric commutator and described Ethernet switch, and transmission information between described administration and supervision authorities, in order to ensure the safe and reliable of DES module and administration and supervision authorities communication, between described DES module communication supervisor and described photoelectric commutator, can adopt two slacks to be connected.
Native system also can comprise internal heat system and drilling instrument system, described internal heat system and described drilling instrument system by described communication layers and and described administration and supervision authorities between transmission information, described internal heat system and described drilling instrument system can be directly by described Ethernet switch and described administration and supervision authorities transmission informations, also can pass through successively described DSM module communication supervisor and described Ethernet switch and transmission information between described administration and supervision authorities.
Between described mechanical floor and described communication layers, can adopt ProfiBus fieldbus.
For convenience of wiring and management and monitoring, described monitoring server, described Ethernet switch, described photoelectric commutator and described DSM module communication supervisor, can be arranged in the main distribution of DSM module, described DES module communication supervisor can be arranged in the main distribution of DES module.
The quality of power supply condition information of DSM module and DES module, carry out parameter acquisition by equipment end electric energy quality monitor table separately, and quality of power supply condition information is sent to administration and supervision authorities, after analyzing by administration and supervision authorities main frame, send steering order by administration and supervision authorities, the measuring instrument of mechanical floor is controlled.
The electric energy quality monitor table of the DSM module in the present invention and the electric energy quality monitor table of DES module, these electric energy quality monitor tables can comprise high-grade intelligent instrument and common intelligent instrument: high-grade intelligent instrument (Advanced intelligent instrument), and for measuring three-phase V, I, P, Q, SP, F, Kwh.Possess Detecting Power Harmonics function and quality of power supply measurement function simultaneously, there is color liquid crystal screen and show, support RS485 bus and MODBUS RTU communications protocol; Common intelligent instrument (Ordinary intelligent instrument), measures three-phase V, I, P, Q, SP, F, Kwh.There is LCD screen and show, support RS485 bus and MODBUS RTU communications protocol.
Described communication layers, for realizing the communication network management functions such as router, Communication Gateway, LAN (Local Area Network) internal communication, opto-electronic conversion.It comprises Ethernet switch, and the DSM module communication supervisor being connected with this Ethernet switch and DES module communication supervisor; Also comprise optical fiber and other communication cables, for each equipment, and internal system between equipment and instrument connects, and the communication of system outside connects.
Described monitoring server and the built-in monitoring software of described long distance control system and mass storage, can realize storage, analysis and report printing etc. to data, pure Chinese display can be provided, friendly man-machine interface, show intuitively chart, optional majority task operating mode.。
The present invention also can comprise color laser A4 printer, and it is connected with described monitoring server, is positioned at the electric energy quality monitoring cabinet between DSM main distribution.
The present invention also can comprise main station monitoring cabinet, and it is for laying the equipment such as monitoring host computer and printer, and the harmonic wave that is provided with guide tracked installation in it suppresses module, surveys humorous wave interference for eliminating system works power supply.
Various measuring instruments in the present invention, monitoring server, Ethernet switch, and the device such as DSM module communication supervisor and DES module communication supervisor being connected with this Ethernet switch, its parameter selects to meet the request for utilization under marine oil working environment: relative humidity is large, strong, the moist saliferous of air corrosion.The normal service life of continuous working is no less than 20 years, and should adapt to the severe electromagnetic environment of oceanographic engineering environment.
Power quality supervisory information system software systems adopt necessary defence pattern, and key application and data are implemented to protection, prevent from being attacked and maloperation.The average load rate (in 5min) of fieldbus network and fiber optic Ethernet :≤10%; Rate of load condensate when fieldbus network normal (arbitrarily in 30min) :≤30%; The rate of load condensate when fault of fieldbus network (arbitrarily in 10S) :≤70%; Rate of load condensate when fiber optic Ethernet normal (arbitrarily in 30min) :≤20%; The rate of load condensate when fault of fiber optic Ethernet (arbitrarily in 10S) :≤40%; Internal memory margin capacity: >=40%.
The electric energy quality monitor table of mechanical floor gathers electric energy quality signal by assay intervals bed device, the signal gathering has: three-phase voltage, electric current, active power, reactive power, applied power, frequency, power factor, active electrical degree, idle electric degree etc., wherein high-grade intelligent instrument can be selected numerical value output, demonstration and waveform output, show (waveform recording function), and subsidiary power quality analysis function, communication interface type can be RS485 or RJ45, and communications protocol can adopt Modbus RTU or TCP/IP; Common intelligent instrument communication interface type can be RS485 or RJ45, and communications protocol can adopt Modbus RTU or TCP/IP.
High-grade intelligent instrument internal memory, can expand external storage unit, Monitoring Data is carried out to this locality storage and synchronize processing with long-range uploading.Memory stores data is no less than 5 years.High-grade intelligent instrument sampling rate is not less than 128 points/cycle, can monitor the voltage and the current harmonics amount that are not less than 31 times.High-grade intelligent instrument can realize fault alarm and real-time waveform record, the functions such as failure wave-recording.The mean time between failures of intelligent instrument is no less than 50000 hours.
Communication layers comprises Ethernet switch, and the DSM module communication supervisor being connected with this Ethernet switch and DES module communication supervisor; And network data transmission medium (as optical fiber, Shielded Twisted Pair, surpass 5 class netting twines etc.), DSM module communication supervisor and DES module communication supervisor realize that network is integrated, the function of communication media conversion and network expansion.Optical fiber can adopt single-mode fiber, and Shielded Twisted Pair should be able to be resisted the electromagnetic interference (EMI) of offshore oil drilling equipment.The DSM module communication supervisor that is equipped with and DES module communication supervisor can adopt height integrated products, to reduce physical interface, improve communication robust.The optical fiber adopting, provides the oversheath of oil resistant dirt and ocean severe environment, to guarantee the serviceable life of its exposed sweep after secondary drag chain.Signal transmission and the conversion of Communication Layer equipment should be guaranteed its accuracy, and accuracy reaches 100%.Its working power adopts harmonic wave to suppress module.Frequency of operation: 2kHz～10MHz; Filtering Efficacy: near 2MHz, reach 50DB decay,, interference such as the higher hamonic wave in system and high frequency noise, pulse spike, surge are had to inhibition and absorption, the spike transition in electrical network and 2KHZ～10MHZ clutter are had to obvious filter effect.Communication bus adopts tandem type bus protection equipment.Continue high voltage protective voltage range :≤250V.Surge current: 5KA～10KA releases.
The monitoring server of built-in monitoring software is arranged in the monitoring cabinet between DSM main distribution, inside establish GPS to time precision, accuracy guarantee: stand between level work station≤1ms, wall measure and control device≤1ms.The history data store time is no less than 3 years.When memory capacity remaining sum lower than system service requirement capacity 80% time send warning information.Systematic failures is recollected the full detail of function before, during and after can preservation accident.After accident, recollecting the time period is 5～10 minutes.System real time data cycle sweep time is adjustable between 0.1～10 second.90% above real time monitoring picture of remote monitoring screen recalls the response time and is not more than 1 second.1～10 second picture real time data update cycle is adjustable.The error of system time and standard time is less than 0.1 second.
The monitoring software that is built in monitoring server and long distance control system has open feature, observe generally acknowledged open standard, can realize seamless integrated with other system, monitoring software has the feature of security, can meet the requirement of long-time steady operation, the integrality and the consistance that ensure data, prevent from the accident of system self or artificial maloperation.Monitoring software has enough close friends' man-machine interface, and user interface is succinctly directly perceived, handled easily, and various Presentation Functions are optional, and figure shows: comprise electric main wiring diagram, stick plot, curve map, pie chart, table meter figure, trend map and form function.Monitoring software should have self-diagnostic function, when level bay device and network communication layer equipment is without response instantly or software self should give and operating personnel's alarm and reminding during without response.
The system that DSM module is monitored, can comprise power-supply system, Variable Frequency Drives, Motor Control Center system and illuminator etc., wherein power-supply system is divided again primary power system, emergency power system and ups power system etc., Variable Frequency Drives is mainly the frequency conversion drive of the main motor of steam piano, Motor Control Center system is mainly to control air-conditioning, the driving of the equipment such as blower fan, each control system can arrange respectively controller according to controlling the feature driving, controller can adopt PLC controller or DCS controller, equipment operation information comprises the running of equipment, stop, fault alarm etc., controller can transfer to DSM module communication supervisor by inner communication interface by these equipment operation information, transfer to described Ethernet switch by DSM module communication supervisor again, transfer to monitoring server and long distance control system by Ethernet switch again, internal heat system, drilling instrument system, HVAC system etc. also can directly transmit data to Ethernet switch, then transfer to monitoring server and long distance control system by Ethernet switch.
The control system of DES module, can comprise Variable Frequency Drives, Motor Control Center system and illuminator etc., Variable Frequency Drives is mainly to control winch, the frequency conversion drive of the main motors of equipment such as rotating disk, Motor Control Center system is mainly to control winch, the stand-by motor of the equipment such as rotating disk and air-conditioning, the driving of the equipment such as blower fan, each system can arrange respectively controller according to controlling the feature driving, controller can adopt PLC controller or DCS controller, equipment operation information comprises the running of equipment, stop, fault alarm etc., controller can transfer to DES module communication supervisor by the excessively inner communication interface of these equipment operation information exchanges, transfer to described Ethernet switch by DES module communication supervisor again, transfer to monitoring server and long distance control system by Ethernet switch again.
The various measuring instruments such as electrical quality measuring instrument, thermometer and the hygronom of DSM module, these measuring instruments are directly by the information gathering, transfer to DSM module communication supervisor by inner communication interface, transfer to described Ethernet switch by DSM module communication supervisor again, then transfer to monitoring server and long distance control system by Ethernet switch.
The various measuring instruments such as electrical quality measuring instrument, thermometer and the hygronom of DES module, these measuring instruments are directly by the information gathering, transfer to DES module communication supervisor by inner communication interface, transfer to described Ethernet switch by DES module communication supervisor via photoelectricity interchanger again, then transfer to monitoring server and long distance control system by Ethernet switch.
In native system, monitoring server is as host computer, the various measuring instruments such as electrical quality measuring instrument, thermometer and the hygronom in DES module and DSM module are as slave computer, host computer can transmit steering order to slave computer by described communication layers, slave computer is translated this order again, and exports corresponding control signal and directly control relevant device.
Between mechanical floor and communication layers, adopt fieldbus to carry out data transmission, can adopt the kind of fieldbus to mainly contain: fieldbus FF, ProfiBus, WorldFIP, ControlNet/DeviveNet and CAN etc., while selecting bus pattern according to the communications protocol type of slave computer and field working conditions condition, select suitable communication bus, native system preferably adopts ProfiBus fieldbus, is characterized in, this bus is applicable to most of controllers and measuring instrument.Agreement is unified, and interface is unified, can Fast Installation and debugging, and easy to maintenance.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (9)
1. the power quality supervisory information system of a marine module drilling rig, it is characterized in that, comprise: mechanical floor, communication layers and administration and supervision authorities, wherein, described mechanical floor comprises: electric energy quality monitor table, thermometer and the hygronom of DSM module, and electric energy quality monitor table, thermometer and the hygronom of DES module; Described communication layers comprises: Ethernet switch, and the DSM module communication supervisor being connected with this Ethernet switch and DES module communication supervisor; Described administration and supervision authorities comprise: the monitoring server of built-in monitoring software and long distance control system; Between described mechanical floor and described administration and supervision authorities, carry out data transmission by described communication layers, described monitoring server and described long distance control system, read, store, analyze, provide form to the data from described mechanical floor, output steering order is to described mechanical floor.
2. the power quality supervisory information system of marine module drilling rig according to claim 1, is characterized in that, the working power of described communication layers connects harmonic wave and suppresses module, and the frequency of operation that described harmonic wave suppresses module is 2kHz～10MHz.
3. the power quality supervisory information system of marine module drilling rig according to claim 1, is characterized in that, described DSM module communication supervisor and described DES module communication supervisor are multi-protocol communication supervisor.
4. the power quality supervisory information system of marine module drilling rig according to claim 1, is characterized in that, described communication layers also comprises photoelectric commutator, and described DES module communication supervisor is communicated by letter with described Ethernet switch by described photoelectric commutator.
5. the power quality supervisory information system of marine module drilling rig according to claim 4, is characterized in that, adopts two slacks to be connected between described DES module communication supervisor and described photoelectric commutator.
6. the power quality supervisory information system of marine module drilling rig according to claim 1, it is characterized in that, electric energy quality monitor table, thermometer and the hygronom of described DSM module, pass through successively described DSM module communication supervisor and described Ethernet switch, and transmission information between described administration and supervision authorities.
7. the power quality supervisory information system of marine module drilling rig according to claim 1, it is characterized in that, also comprise internal heat system and drilling instrument system, described internal heat system and described drilling instrument system by described communication layers and and described administration and supervision authorities between transmission information.
8. according to the power quality supervisory information system of the arbitrary described marine module drilling rig of claim 1 to 7, it is characterized in that, also comprise remote monitoring screen and acoustic-optic alarm, described remote monitoring screen is connected with Ethernet switch, be used for showing quality of power supply situation, described acoustic-optic alarm is connected with monitoring server, carries out sound and light alarm under abnormal conditions.
9. according to the power quality supervisory information system of the arbitrary described marine module drilling rig of claim 1 to 7, it is characterized in that, between described mechanical floor and described communication layers, adopt ProfiBus fieldbus.
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| CN201410160668.2A CN103926898A (en) | 2014-04-21 | 2014-04-21 | System for monitoring power quality of ocean module drilling machine |
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| CN104265263A (en) * | 2014-08-28 | 2015-01-07 | 杭州墨锐机电科技有限公司 | Underground control bin of deepwater drilling rig |
| CN104950751A (en) * | 2015-06-11 | 2015-09-30 | 滁州市西控电子有限公司 | Novel generator set backstage monitoring system |
| CN106055696A (en) * | 2016-06-15 | 2016-10-26 | 南京威联达自动化技术有限公司 | Motor protection controller for achieving energy efficiency management and energy conservation through data mining technology |
| CN106707822A (en) * | 2017-03-01 | 2017-05-24 | 国电南瑞科技股份有限公司 | Method for replacing PLC (Programmable Logic Controller) by monitoring devices on basis of comprehensive monitoring of large lag system |
| CN108964259A (en) * | 2017-05-17 | 2018-12-07 | 深圳市思创华源科技有限公司 | A kind of power grid intelligence control system |
| CN112346423A (en) * | 2020-11-16 | 2021-02-09 | 中冶赛迪电气技术有限公司 | Intelligent MCC hierarchical control system based on optical fiber communication technology |
| CN114977492A (en) * | 2022-05-11 | 2022-08-30 | 中海油能源发展装备技术有限公司 | Power supply monitoring and diagnosing method for offshore platform central control system |
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| CN104265263A (en) * | 2014-08-28 | 2015-01-07 | 杭州墨锐机电科技有限公司 | Underground control bin of deepwater drilling rig |
| CN104950751A (en) * | 2015-06-11 | 2015-09-30 | 滁州市西控电子有限公司 | Novel generator set backstage monitoring system |
| CN106055696A (en) * | 2016-06-15 | 2016-10-26 | 南京威联达自动化技术有限公司 | Motor protection controller for achieving energy efficiency management and energy conservation through data mining technology |
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| CN114977492A (en) * | 2022-05-11 | 2022-08-30 | 中海油能源发展装备技术有限公司 | Power supply monitoring and diagnosing method for offshore platform central control system |
| CN114977492B (en) * | 2022-05-11 | 2024-05-17 | 中海油能源发展装备技术有限公司 | Power supply monitoring and diagnosing method for offshore platform central control system |
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Application publication date: 20140716 |