CN102269779A - Voltage fluctuation recording device based on DLMS (distribution line message specification)/COSEM (companion specification for energy metering) - Google Patents
Voltage fluctuation recording device based on DLMS (distribution line message specification)/COSEM (companion specification for energy metering) Download PDFInfo
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- CN102269779A CN102269779A CN201110169250A CN201110169250A CN102269779A CN 102269779 A CN102269779 A CN 102269779A CN 201110169250 A CN201110169250 A CN 201110169250A CN 201110169250 A CN201110169250 A CN 201110169250A CN 102269779 A CN102269779 A CN 102269779A
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Abstract
The invention discloses a voltage fluctuation recording device based on DLMS (distribution line message specification)/COSEM (companion specification for energy metering), and relates to a voltage fluctuation recording device based on the DLMS/COSEM. For overcoming the disadvantage that the prior art cannot adapt to the intellectualization, networking and interoperate requirement of an intelligent power grid, the invention provides a voltage fluctuation recording device based on the DLMS/COSEM. The recording device is composed of an input signal condition circuit, a digital lock phase frequency tracking circuit, a multi-channel synchronous data acquiring circuit, a digital signal processor, a microprocessor, a data memory, a clock circuit, a power supply detection circuit, a monitoring alarm circuit and a communication circuit. The recording device is widely applied to an electric energy monitoring system at distribution requirement side, the DLMS/COSEM, namely, the distribution line message specification and companion specification for energy metering in the IEC62056 (data exchange of meter reading, rates and load control) series international standard is adopted in design. The recording device supports a plurality of communication medium access method by using the uniform data interface standard to as to realize the interconnection and interoperate among the distribution systems.
Description
Technical field
The present invention relates to the voltage fluctuation pen recorder, particularly based on the voltage fluctuation pen recorder of DLMS/COSEM.
Background technology
Develop rapidly along with national economy, be accompanied by the application in power industry of new technology, new equipment, new technology, industrial automatization level improves constantly, and commercial production and sensitive electronic equipment are to the more and more higher requirement of quality proposition of electric energy in the electrical network.Can provide high-quality electric energy to become electric power enterprise operation and management level important symbol just, controlling and improving the quality of power supply also be the necessary condition that guarantees electric power enterprise self sustainable development.Statistics according to the parties concerned: voltage fluctuation is to cause the power quality problem main cause in the electrical network.Owing to voltage fluctuation causes the affected complaint of subscriber equipment more and more, account for more than 80% of whole power quality problem simultaneously, this ratio is higher in China.Therefore the seriousness of voltage fluctuation problem is subjected to the extensive attention of countries in the world power industry.
Voltage fluctuation is a content that is worth further investigation and inquires into as one of the most serious power quality problem.The application specific standard of neither one about voltage fluctuation gone back in voltage fluctuation and relevant power quality problem so far, and its measurement statistical method and reliability index also are in conceptual phase.Voltage fluctuation is a very important electric energy quality monitoring technical indicator, although existing both at home and abroad corresponding product.But these products do not possess functions such as the desired intellectuality of intelligent grid, networking, interoperability.Current, existing voltage fluctuation pen recorder does not have unified output data form and communication modes.Some products adopt a kind of general power quality data format transformation PQDIF of IEEE1159 new regulation.But PQDIF does not have favorable compatibility, is not easy to realize data sharing between each system.
Voltage fluctuation pen recorder provided by the invention is widely used in distribution demand side electric energy quality monitoring system, and emphasis is used for load management system and electric energy measuring management system.The present invention adopts DLMS/COSEM in design, i.e. equipment language message specification and the supporting standard of energy measurement in the serial international standard of the IEC62056 exchanges data of the control of rate and load (check meter).With unified data-interface standard, support multiple communication media cut-in method, realize interconnectivity and interoperability between the distribution system.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art part, to adapt to the demand of intelligent grid intellectuality, networking, interoperability, the voltage fluctuation pen recorder based on DLMS/COSEM being provided.
The present invention is made up of input signal conditioning circuit, digital frequency of phase locking tracking circuit, multi-channel synchronous data acquisition circuit, digital signal processor, microprocessor, data-carrier store, clock circuit, power supply testing circuit, monitoring, alarming circuit and communicating circuit.Described digital signal processor is 32 fixed point high speed digital signal processor TMS320F2812; Described microprocessor is the technical grade embedded microprocessor MCF5282 of 32 ColdFire kernels.
Described input signal conditioning circuit carries out filtering to the three-phase voltage signal of electrical network, after links such as amplification are adjusted, be input to 16 simultaneously, 6 passage synchronized sampling analog to digital converter ADS8364 and digital frequency of phase locking tracking circuit, numeral frequency of phase locking tracking circuit provides reliable, mains frequency is followed the tracks of synchronizing signal and phase shortage detection signal accurately, guarantee the synchronous real-time and the phase place accuracy of AC sampling in the data acquisition circuit, digital signal processor is by the control to the data Acquisition Circuit, after the voltage ripple of power network signal that obtains carried out calculation process, carry out exchanges data with embedded microprocessor.
Embedded microprocessor is according to the data definition of the electric object identity system (OBIS) of DLMS/COSEM with based on the interface class (IC) of object modeling technique, set up the voltage fluctuation signal data object model, with voltage fluctuation pen recorder standard is a logical physical equipment that meets the DLMS/COSEM standard, is one of them function subset with the voltage fluctuation signal standard.Through the voltage fluctuation transient data after the digital signal processor calculation process, carry out the encapsulation process of data structure and type, finish the mass data storage of voltage fluctuation signal real-time curve and history curve, and upload to main website by communicating circuit.The power supply that embedded microprocessor is finished whole device detects and the fault alarm monitoring.
The present invention adopts the communication construction based on the COSEM of client/server mode when carrying out exchanges data with main website, the present invention is a server, and the main website machine is a client computer.Form with application process between the present invention and the main website is carried out information interaction.Embedded microprocessor adopts real-time multi-task operating system, can realize by main website data model of the present invention and communications protocol standard being carried out the remote upgrade renewal, upgrades to adapt to the relevant art standard version.
The present invention adopt international standards exchanges data standard and advanced observation and control technology, can realize seamless link with the load management system of distribution demand side, electric-power metering management system etc., realize data sharing, interoperability, meet the design concept that the advanced person in intelligent power field in the intelligent grid measures framework (AMI) fully.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present invention; Fig. 2 is the voltage fluctuation data object model.
Embodiment
Embodiment is referring to Fig. 1 and Fig. 2.
The present invention is made up of input signal conditioning circuit, digital frequency of phase locking tracking circuit, multi-channel synchronous data acquisition circuit, digital signal processor, microprocessor, data-carrier store, clock circuit, power supply testing circuit, monitoring, alarming circuit and communicating circuit.Described digital signal processor is 32 fixed point high speed digital signal processor TMS320F2812; Described microprocessor is the technical grade embedded microprocessor MCF5282 of 32 ColdFire kernels.
1, electrical network three-phase voltage input signal is through voltage transformer (VT) sampling, enter the input signal conditioning circuit of forming by signal filtering, amplifying circuit after, be divided into two-way.One the tunnel is input on the 6 passage ADS8364, another road process is by behind the digital frequency of phase locking tracking circuit of forming by absolute value circuit, analog switching circuit, phaselocked loop, the phase shortage of finishing input voltage signal detects, produce synchronous sampling signal simultaneously, start the data-switching of ADS8364 and the data acquisition of TMS320F2812.
2, digital signal processor TMS320F2812 carries out voltage fluctuation calculating to the voltage ripple of power network data of gathering according to standard GB/T12326-2008, with the additional time marking of these data, sends embedded microprocessor MCF5282 to then.
3, MCF5282 sets up the data model that meets the DLMS/COSEM standard to the data of TMS320F2812 transmission.According to each data set definition of electric object identity system (OBIS), the voltage fluctuation data are carried out the standard of data object type, comprise the electric classification of data, measure passage, processing mode etc.According to the object modeling technique of interface class (IC), voltage fluctuation signal is carried out the standard of numerical attribute, comprise logical name, the attribute register of data, data length, dimension etc.
By said process, the voltage fluctuation data encapsulation is become to have the Interchange Format that meets the DLMS/COSEM standard.
4, five peripheral circuit modules of MCF5282 management.Data-carrier store adopts jumbo ferroelectric memory, guarantees the long-term reliability of history data store.Power supply circuit is monitored the supply voltage situation of telemetry circuit in real time, realizes that fast low-voltage detects, and makes the data that the rapid preservation of processor is being handled, and guarantees the continuity of data.Clock circuit is for two processors provide clock signal accurately, the data additional period sign all that makes the data of computing and encapsulation.Monitoring and warning circuit emphasis are monitored inner space temperature, environment temperature, connecting part temperature and the protection situation etc. of this device, make main website understand the running environment situation of device in real time.Communicating circuit is the physical channel that device and main website carry out exchanges data, adopts general-purpose interface and modular functionality design on the circuit design, communication modes such as flexible configuration RS485, electric line carrier communication (PLC), GPRS, ZigBee, Ethernet.Above-mentioned communication modes all has the definition and the standard of standard in DLMS/COSEM.
Claims (1)
1. based on the voltage fluctuation pen recorder of DLMS/COSEM, it is characterized in that it is made up of input signal conditioning circuit, digital frequency of phase locking tracking circuit, multi-channel synchronous data acquisition circuit, digital signal processor, microprocessor, data-carrier store, clock circuit, power supply testing circuit, monitoring, alarming circuit and communicating circuit; Described digital signal processor is 32 fixed point high speed digital signal processor TMS320F2812; Described microprocessor is the technical grade embedded microprocessor MCF5282 of 32 ColdFire kernels.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110169250A CN102269779A (en) | 2011-06-22 | 2011-06-22 | Voltage fluctuation recording device based on DLMS (distribution line message specification)/COSEM (companion specification for energy metering) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110169250A CN102269779A (en) | 2011-06-22 | 2011-06-22 | Voltage fluctuation recording device based on DLMS (distribution line message specification)/COSEM (companion specification for energy metering) |
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| CN102269779A true CN102269779A (en) | 2011-12-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008792A1 (en) * | 2012-07-11 | 2014-01-16 | 福建省电力有限公司电力科学研究院 | Distribution network voltage fluctuation positioning method and device |
| CN104735172A (en) * | 2013-12-18 | 2015-06-24 | 易讯科技股份有限公司 | Protocol conversion method of intelligent electricity using information collecting terminal |
| CN107800554A (en) * | 2016-09-05 | 2018-03-13 | 华为数字技术（苏州）有限公司 | Collecting method, device and system |
| CN107861724A (en) * | 2017-11-06 | 2018-03-30 | 烟台东方威思顿电气有限公司 | The scripting coding method of fast adaptation DLMS/COSEM objects |
| CN113985115A (en) * | 2021-09-13 | 2022-01-28 | 阳春新钢铁有限责任公司 | System and method for power grid fluctuation detection and early warning of LCI transmission system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008792A1 (en) * | 2012-07-11 | 2014-01-16 | 福建省电力有限公司电力科学研究院 | Distribution network voltage fluctuation positioning method and device |
| CN104735172A (en) * | 2013-12-18 | 2015-06-24 | 易讯科技股份有限公司 | Protocol conversion method of intelligent electricity using information collecting terminal |
| CN104735172B (en) * | 2013-12-18 | 2018-01-16 | 易讯科技股份有限公司 | A kind of stipulations conversion method of intelligent electricity consumption information acquisition terminal |
| CN107800554A (en) * | 2016-09-05 | 2018-03-13 | 华为数字技术（苏州）有限公司 | Collecting method, device and system |
| CN107800554B (en) * | 2016-09-05 | 2021-04-09 | 华为数字技术（苏州）有限公司 | Data acquisition method, device and system |
| CN107861724A (en) * | 2017-11-06 | 2018-03-30 | 烟台东方威思顿电气有限公司 | The scripting coding method of fast adaptation DLMS/COSEM objects |
| CN107861724B (en) * | 2017-11-06 | 2020-03-20 | 烟台东方威思顿电气有限公司 | Scripted coding method for fast adapting DLMS/COSEM object |
| CN113985115A (en) * | 2021-09-13 | 2022-01-28 | 阳春新钢铁有限责任公司 | System and method for power grid fluctuation detection and early warning of LCI transmission system |
| CN113985115B (en) * | 2021-09-13 | 2024-03-19 | 阳春新钢铁有限责任公司 | LCI transmission system power grid fluctuation detection and early warning system and method |
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Application publication date: 20111207 |