CN103064054B - The matrix majorization method of electric power meter analogue system and wiring thereof - Google Patents
The matrix majorization method of electric power meter analogue system and wiring thereof Download PDFInfo
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- CN103064054B CN103064054B CN201210554746.8A CN201210554746A CN103064054B CN 103064054 B CN103064054 B CN 103064054B CN 201210554746 A CN201210554746 A CN 201210554746A CN 103064054 B CN103064054 B CN 103064054B
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Abstract
The present invention relates to Electric Energy Metering Technology field, specifically disclose a kind of matrix majorization method of electric power meter analogue system and wiring thereof, the method comprises the secondary circuit respectively between voltage transformer (VT) and tested electric energy measuring equipment, and the secondary circuit between current transformer and tested electric energy measuring equipment accesses the connection controller of a matrix majorization, voltage transformer (VT) and current transformer are electrically connected respectively by the connection controller of matrix majorization and tested electric energy measuring equipment; Connection controller one end of above-mentioned two matrix majorization is communicated to connect with a host computer respectively, the connection controller of this host computer to this two matrix majorization controls, to realize between voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and tested electric energy measuring equipment.The present invention can realize intelligent automatic connection process in electric energy metrical simulation process, improves intellectuality and the robotization of simulation process.
Description
Technical field
The present invention relates to Electric Energy Metering Technology field, particularly relate to a kind of electric power meter analogue system, and realize the matrix majorization method of system intelligence automatic connection.
Background technology
In the generating of electric system, transmission of electricity and power supply process, electric energy metrical is a very important link.Electric energy metrical is the foundation that electrical network economy is adjusted, it is not only related to safety and economic operation and the direct economic benefit of electrical production department, but also directly, be indirectly related to economic benefit and the social benefit of whole national economy, concerning the legitimate rights and interests of the development of power industry, country and power consumer.
Electric power meter generally includes voltage transformer (VT), current transformer, electric energy meter, and the secondary circuit between electric energy meter to mutual inductor.In high voltage, big current system, meter meter can not directly access circuit-under-test and measure, and needs first high voltage, big current to be measured through secondary circuit access electric energy meter after being transformed into low-voltage, small area analysis by voltage transformer (VT) summation current transformer again.Along with the development of power industry, all types of high-end secondary metering devices progressively walks out laboratory, enters on-the-spot actual motion, how to these equipment evaluations, examination, enables to be incorporated into the power networks as early as possible; How field electric energy measurement device composition error is analyzed and to be reduced; How to allow real work personnel deepen rationality and perceptual knowledge to conventional dosing devices, the digitized measurement equipment, improve practical operation level, how to carry out the training of simulation actual field, examination; How the various failure conditions that actual field occurs are simulated out in the lab, so that better carrying out the work is the key subjects being badly in need of in electric energy metrical work solving.
Electric energy metrical at the scene detect and experiment work more loaded down with trivial details, test case is very complicated, the various improper measurement situation of frequent appearance, to these results because on-the-spot power off time is comparatively tight and condition restriction, is difficult to make correct discriminatory analysis and the reason that goes into the question.Therefore need in laboratory, set up a set of electric energy metrical Analog Simulation System, thus realistic simulation is carried out to field condition, pinpoint the problems, analyze reason, solve practical site problems, and further investigate, simulation is as CT second short circuit, open circuit, error-polarity connection, and PT first and second breaks phase, the nonlinear load such as harmonic wave, m-Acetyl chlorophosphonazo and impact load, analyze data result and reason, the impact that prevention and reduction abnormal conditions produce electric power meter.
In the process of the generating of electric system, transmission of electricity and power supply, the wiring of electric power meter is a very important link, although the error connection of electric power meter can not cause comparatively serious equipment loss and casualties, likely serious economic loss is caused to electricity consumption enterprise or power supply enterprise.Therefore in order to the wiring of energy artificial site, need may to combine the various wiring of device, to reproduce on-the-spot situation.And in routine application, most of wire is all by manually connecting, and due to artificially, may cause connection error, and require a great deal of time artificial connection.
Summary of the invention
The object of the invention is to, propose a kind of matrix majorization method of electric power meter analogue system and wiring thereof, it can realize intelligent automatic connection process in electric energy metrical simulation process, improves intellectuality and the robotization of simulation process.
For achieving the above object, the invention provides a kind of electric power meter analogue system, it comprises: tested electric energy measuring equipment, and be located at voltage transformer (VT) and the current transformer of tested electric energy measuring equipment front end, described voltage transformer (VT) and current transformer are electrically connected respectively by the connection controller of a matrix majorization and tested electric energy measuring equipment, and the connection controller of this two matrix majorization all communicates to connect with a host computer.
Wherein, described tested electric energy measuring equipment can be an electric energy meter; Described host computer can be a computing machine, and this computing machine is communicated to connect with the connection controller of two matrix majorization respectively by a chromacoder.
In the present invention, between described voltage transformer (VT) and the connection controller of matrix majorization, and be all connected by 4 wires between the connection controller of matrix majorization with tested electric energy measuring equipment.
In the specific embodiment of the invention, described voltage transformer (VT) can be electrically connected by the connection controller of the matrix majorization of one 4 × 4 and tested electric energy measuring equipment, and each point of crossing in this 4 × 4 matrix is all connected with electronic control switch.
In the present invention, between described current transformer and the connection controller of matrix majorization, and be all connected by 6 wires between the connection controller of matrix majorization with tested electric energy measuring equipment.
In the specific embodiment of the invention, described current transformer can be electrically connected by the connection controller of the matrix majorization of one 6 × 6 and tested electric energy measuring equipment, and each point of crossing in this 6 × 6 matrix is all connected with electronic control switch.
Further, present invention also offers the matrix majorization method of a kind of electric power meter analogue system wiring, it comprises the steps:
Secondary circuit respectively between voltage transformer (VT) and tested electric energy measuring equipment, and the secondary circuit between current transformer and tested electric energy measuring equipment accesses the connection controller of a matrix majorization, voltage transformer (VT) and current transformer are electrically connected respectively by the connection controller of matrix majorization and tested electric energy measuring equipment;
Connection controller one end of above-mentioned two matrix majorization is communicated to connect with a host computer respectively, the connection controller of this host computer to this two matrix majorization controls, to realize between voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and tested electric energy measuring equipment.
Wherein, described tested electric energy measuring equipment can be an electric energy meter; Described host computer can be a computing machine, and this computing machine is communicated to connect with the connection controller of two matrix majorization respectively by a chromacoder.
Moreover, between described voltage transformer (VT) and the connection controller of matrix majorization, and be all connected by 4 wires between the connection controller of matrix majorization with tested electric energy measuring equipment; This voltage transformer (VT) is electrically connected by the connection controller of the matrix majorization of one 4 × 4 and tested electric energy measuring equipment, each point of crossing in this 4 × 4 matrix is all connected with electronic control switch, to realize the combination in any of 4 wiring between voltage transformer (VT) and tested electric energy measuring equipment.
In addition, between described current transformer and the connection controller of matrix majorization, and be all connected by 6 wires between the connection controller of matrix majorization with tested electric energy measuring equipment; This current transformer is electrically connected by the connection controller of the matrix majorization of one 6 × 6 and tested electric energy measuring equipment, each point of crossing in this 6 × 6 matrix is all connected with electronic control switch, to realize the combination in any of 6 wiring between current transformer and tested electric energy measuring equipment.
The matrix majorization method of electric power meter analogue system of the present invention and wiring thereof, between its voltage transformer (VT) and tested electric energy measuring equipment, and the connection controller all by matrix majorization between current transformer with tested electric energy measuring equipment is connected, the combination in any of wiring can be realized, the selection of these combinations controls to be controlled by computing machine, intelligent automatic connection process can be realized in electric energy metrical simulation process, improve intellectuality and the robotization of simulation process, avoid the connection error that artificial wiring may cause, comparatively time saving and energy saving.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the modular structure schematic diagram of a kind of specific embodiment of electric power meter analogue system of the present invention;
Fig. 2 is the principle schematic that in the present invention, voltage transformer (VT) is connected by the connection controller of matrix majorization with tested electric energy measuring equipment;
Fig. 3 is the principle schematic that in the present invention, current transformer is connected by the connection controller of matrix majorization with tested electric energy measuring equipment;
Fig. 4 is the matrix majorization method flow diagram of electric power meter analogue system wiring in the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of electric power meter analogue system, it comprises: tested electric energy measuring equipment 10, and be located at voltage transformer (VT) (PT) 20 and the current transformer (CT) 30 of tested electric energy measuring equipment 10 front end, described voltage transformer (VT) 20 and current transformer 30 are electrically connected respectively by the connection controller 22,32 of a matrix majorization and tested electric energy measuring equipment 10, and the connection controller 22,32 of this two matrix majorization all communicates to connect with a host computer 40.After electric power meter is applied to scene, once go wrong, search problem comparatively difficulty at the scene, therefore after can recording on-the-spot situation, get back to laboratory to simulate in this electric power meter analogue system, and need repeatedly to change wiring in simulation process, be all by manually connecting in conventional application, efficiency is lower.
In the present invention, described tested electric energy measuring equipment 10 can be an electric energy meter.When using electric energy meter it should be noted that when low-voltage (being no more than 500 volts) and small area analysis (tens peaces), electric energy meter can directly be measured by place in circuit.When high voltage or big current, electric energy meter can not direct line attachment, and voltage transformer (VT) or current transformer need be coordinated to use.For the electric energy meter of direct line attachment, appropriate size to be selected according to load voltage and electric current, make rated voltage and the rated current of electric energy meter, be equal to or slightly greater than voltage or the electric current of load.In addition, the power consumption of load will at more than 10% of electric energy meter ratings, otherwise measure inaccurate, and therefore electric energy meter can not select too large; Meanwhile, it is too little that electric energy meter can not be selected, if select too littlely also easily burn out electric energy meter.
In the present invention, between described voltage transformer (VT) 20 and the connection controller 22 of matrix majorization, and be all connected by 4 wires between the connection controller 22 of matrix majorization with tested electric energy measuring equipment 10.Therefore, in the specific embodiment of the invention, described voltage transformer (VT) 20 can be electrically connected with tested electric energy measuring equipment 10 by the connection controller 22 of the matrix majorization of one 4 × 4, use this matrix majorization method of 4 × 4, the combination in any of 4 wires to 4 wires of tested electric energy measuring equipment 10 of voltage transformer (VT) 20 output can be realized.As shown in Figure 2, each point of crossing in 4 × 4 matrixes is all connected with electronic control switch (not shown), namely 16 point of crossing in figure are all connected with electronic control switch, this electronic control switch can be undertaken being switched on or switched off control by host computer 40, thus realizes any switching laws of 4 wires to 4 wiring of tested electric energy measuring equipment 10 of voltage transformer (VT) 20 output.
In the present invention, between described current transformer 30 and the connection controller 32 of matrix majorization, and be all connected by 6 wires between the connection controller 32 of matrix majorization with tested electric energy measuring equipment 10.Therefore, in the specific embodiment of the invention, described current transformer 30 can be electrically connected with tested electric energy measuring equipment 10 by the connection controller 32 of the matrix majorization of one 6 × 6, use this matrix majorization method of 6 × 6, the combination in any of 6 wires to 6 wires of tested electric energy measuring equipment 10 of current transformer 30 output can be realized.As shown in Figure 3, each point of crossing in 6 × 6 matrixes is all connected with electronic control switch (not shown), namely 36 point of crossing in figure are all connected with electronic control switch, this electronic control switch can be undertaken being switched on or switched off control by host computer 40, thus realizes any switching laws of 6 wires to 6 wiring of tested electric energy measuring equipment 10 of current transformer 30 output.
As a kind of selectivity embodiment of the present invention, described host computer 40 can be a computing machine, and this computing machine 40 is communicated to connect with the connection controller 22,32 of two matrix majorization respectively by a chromacoder 42.Software control procedure is preset in this computing machine, the combination in any of 4 wiring between voltage transformer (VT) 20 and tested electric energy measuring equipment 10, and the combination in any of 6 wiring between current transformer 30 and tested electric energy measuring equipment 10, the selection of these combinations controls by the software program of computing machine, to be controlled by cable L1, chromacoder 42, cable L2.
Further, as shown in Figure 4, present invention also offers the matrix majorization method of a kind of electric power meter analogue system wiring, it comprises the steps:
Step 1, secondary circuit respectively between voltage transformer (VT) and tested electric energy measuring equipment, and the secondary circuit between current transformer and tested electric energy measuring equipment accesses the connection controller of a matrix majorization, voltage transformer (VT) and current transformer are electrically connected respectively by the connection controller of matrix majorization and tested electric energy measuring equipment.In the present invention, between described voltage transformer (VT) and the connection controller of matrix majorization, and be all connected by 4 wires between the connection controller of matrix majorization with tested electric energy measuring equipment; This voltage transformer (VT) is electrically connected by the connection controller of the matrix majorization of one 4 × 4 and tested electric energy measuring equipment, each point of crossing in this 4 × 4 matrix is all connected with electronic control switch, can realize the combination in any of 4 wiring between voltage transformer (VT) and tested electric energy measuring equipment.Between current transformer of the present invention and the connection controller of matrix majorization, and be all connected by 6 wires between the connection controller of matrix majorization with tested electric energy measuring equipment; This current transformer is electrically connected by the connection controller of the matrix majorization of one 6 × 6 and tested electric energy measuring equipment, each point of crossing in this 6 × 6 matrix is all connected with electronic control switch, can realize the combination in any of 6 wiring between current transformer and tested electric energy measuring equipment.
Step 2, connection controller one end of above-mentioned two matrix majorization is communicated to connect with a host computer respectively, the connection controller of this host computer to this two matrix majorization controls, to realize between voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and tested electric energy measuring equipment.As a kind of specific embodiment of the present invention, described tested electric energy measuring equipment can be an electric energy meter, and described host computer can be a computing machine, and this computing machine can be communicated to connect with the connection controller of two matrix majorization respectively by a chromacoder.Software control procedure is preset in this computing machine, the combination in any of 4 wiring between voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of 6 wiring between current transformer and tested electric energy measuring equipment, the selection of these combinations controls by the software program of computing machine, to be controlled by cable L1, chromacoder, cable L2.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an electric power meter analogue system, comprise tested electric energy measuring equipment, and be located at voltage transformer (VT) and the current transformer of tested electric energy measuring equipment front end, it is characterized in that, described voltage transformer (VT) and current transformer are electrically connected respectively by the connection controller of a matrix majorization and tested electric energy measuring equipment, the connection controller of this two matrix majorization all communicates to connect with a host computer, this host computer is a computing machine, and this computing machine is communicated to connect with the connection controller of two matrix majorization respectively by a chromacoder; Between described voltage transformer (VT) and the connection controller of matrix majorization, and be all connected by 4 wires between the connection controller of matrix majorization with tested electric energy measuring equipment, voltage transformer (VT) is electrically connected by the connection controller of the matrix majorization of one 4 × 4 and tested electric energy measuring equipment, each point of crossing in this 4 × 4 matrix is all connected with electronic control switch, this electronic control switch is undertaken being switched on or switched off control by host computer, thus realizes any switching laws of 4 wires to 4 wiring of tested electric energy measuring equipment of voltage transformer (VT) output; Between described current transformer and the connection controller of matrix majorization, and be all connected by 6 wires between the connection controller of matrix majorization with tested electric energy measuring equipment, current transformer is electrically connected by the connection controller of the matrix majorization of one 6 × 6 and tested electric energy measuring equipment, each point of crossing in this 6 × 6 matrix is all connected with electronic control switch, this electronic control switch is undertaken being switched on or switched off control by host computer, thus realizes any switching laws of 6 wires to 6 wiring of tested electric energy measuring equipment of current transformer output.
2. electric power meter analogue system as claimed in claim 1, it is characterized in that, described tested electric energy measuring equipment is an electric energy meter.
3., to a matrix majorization method for electric power meter analogue system as claimed in claim 1 or 2 wiring, it is characterized in that, comprise the steps:
Secondary circuit respectively between voltage transformer (VT) and tested electric energy measuring equipment, and the secondary circuit between current transformer and tested electric energy measuring equipment accesses the connection controller of a matrix majorization, voltage transformer (VT) and current transformer are electrically connected respectively by the connection controller of matrix majorization and tested electric energy measuring equipment;
Connection controller one end of above-mentioned two matrix majorization is communicated to connect with a host computer respectively, the connection controller of this host computer to this two matrix majorization controls, to realize between voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and tested electric energy measuring equipment.
4. the matrix majorization method of electric power meter analogue system wiring as claimed in claim 3, it is characterized in that, described tested electric energy measuring equipment is an electric energy meter; Described host computer is a computing machine, and this computing machine is communicated to connect with the connection controller of two matrix majorization respectively by a chromacoder.
5. the matrix majorization method of electric power meter analogue system wiring as claimed in claim 4, it is characterized in that, between described voltage transformer (VT) and the connection controller of matrix majorization, and be all connected by 4 wires between the connection controller of matrix majorization with tested electric energy measuring equipment; This voltage transformer (VT) is electrically connected by the connection controller of the matrix majorization of one 4 × 4 and tested electric energy measuring equipment, each point of crossing in this 4 × 4 matrix is all connected with electronic control switch, to realize the combination in any of 4 wiring between voltage transformer (VT) and tested electric energy measuring equipment.
6. the matrix majorization method of electric power meter analogue system wiring as claimed in claim 5, it is characterized in that, between described current transformer and the connection controller of matrix majorization, and be all connected by 6 wires between the connection controller of matrix majorization with tested electric energy measuring equipment; This current transformer is electrically connected by the connection controller of the matrix majorization of one 6 × 6 and tested electric energy measuring equipment, each point of crossing in this 6 × 6 matrix is all connected with electronic control switch, to realize the combination in any of 6 wiring between current transformer and tested electric energy measuring equipment.
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| CN201210554746.8A CN103064054B (en) | 2012-12-19 | 2012-12-19 | The matrix majorization method of electric power meter analogue system and wiring thereof |
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| CN201210554746.8A CN103064054B (en) | 2012-12-19 | 2012-12-19 | The matrix majorization method of electric power meter analogue system and wiring thereof |
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| CN103064054B true CN103064054B (en) | 2015-09-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698736B (en) * | 2013-11-27 | 2016-06-01 | 国家电网公司 | Automatic type combination wiring device |
| CN105489080A (en) * | 2016-01-06 | 2016-04-13 | 国家电网公司 | Metering system simulation platform |
| CN106249192B (en) * | 2016-09-05 | 2020-04-24 | 中国电力科学研究院 | Metering equipment field operation detecting system |
| CN115754892A (en) * | 2023-01-06 | 2023-03-07 | 山东计保电气有限公司 | Electric energy metering line checking and error correcting method and device |
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