CN103064054A - Electric energy measure device simulation system and wiring matrix control method thereof - Google Patents
Electric energy measure device simulation system and wiring matrix control method thereof Download PDFInfo
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- CN103064054A CN103064054A CN2012105547468A CN201210554746A CN103064054A CN 103064054 A CN103064054 A CN 103064054A CN 2012105547468 A CN2012105547468 A CN 2012105547468A CN 201210554746 A CN201210554746 A CN 201210554746A CN 103064054 A CN103064054 A CN 103064054A
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Abstract
The invention relates to the electric energy measure technical field, in particular to an electric energy measure device simulation system and a wiring matrix control method thereof. The wiring matrix control method thereof comprises a secondary circuit between a voltage mutual inductor and a tested electric energy measure apparatus, and a wiring controller connected the secondary circuit between a current mutual inductor and the tested electric energy measure apparatus into matrix controls, and the voltage mutual inductor and the current mutual inductor are respectively connected with detected electric energy measure apparatus through the wiring controllers of the matrix controls in an electrical mode. Ends of the wiring controllers of the two matrix controls are respectively connected with an upper computer in a communication mode, the upper computer controls the wiring controllers of the two matrix controls, thereby achieving free combination of the wiring between the voltage mutual inductor and the detected electric energy measure apparatus, and between the current mutual inductor and the tested electric energy measure apparatus. The electric energy measure device simulation system and the wiring matrix control method thereof have the advantages of being capable of realizing smart automatic wiring process in the process of electric energy measure simulation, and improving intellectualization and automation of simulation process.
Description
Technical field
The present invention relates to the Electric Energy Metering Technology field, relate in particular to a kind of electric power meter analogue system, and the matrix control method that realizes the system intelligence automatic connection.
Background technology
In generating, transmission of electricity and the power supply process of electric system, electric energy metrical is a very important link.Electric energy metrical is the foundation that electrical network economy is adjusted, it is not only concerning safety and economic operation and the direct economic benefit of electrical production department, but also directly, indirectly concerning economic benefit and the social benefit of whole national economy, concerning the legitimate rights and interests of development, country and the power consumer of power industry.
Electric power meter generally includes voltage transformer (VT), current transformer, electric energy meter, and electric energy meter is to the secondary circuit between the mutual inductor.In high voltage, large current system, the meter meter can not directly access circuit-under-test and measure, and measures through secondary circuit access electric energy meter after needing by the voltage transformer (VT) summation current transformer high voltage, large current transformation to be become low-voltage, little electric current first again.Along with the development of power industry, all types of high-end secondary metering devices are progressively walked out the laboratory, enter on-the-spot actual motion, how to these equipment evaluations, examination, enable to be incorporated into the power networks as early as possible; How field electric energy measurement device composition error is analyzed and reduced; How to allow the real work personnel that conventional metered dose equipment, the digitized measurement equipment are deepened the rational faculty and perceptual knowledge, improve the practical operation level, how to carry out the training of simulation actual field, examination; How the various failure conditions of actual field appearance being simulated out in the laboratory, is the key subjects of being badly in need of solution in the electric energy metrical work in order to better carry out the work.
At the scene electric energy metrical detection and experiment work are more loaded down with trivial details, test case is very complicated, various improper measurement situations often occur, these results because on-the-spot power off time is tight and condition restriction, are difficult to make correct discriminatory analysis and the reason that goes into the question.Therefore need in the laboratory, set up a cover electric energy metrical Analog Simulation System, thereby field condition is carried out realistic simulation, pinpoint the problems, analyze reason, solve practical site problems, and further investigation, simulate such as CT second short circuit, open circuit, error-polarity connection PT first and second disconnected phase, nonlinear load and the impact loads such as harmonic wave, a harmonic wave, analyze data result and reason, prevent and reduce the impact that abnormal conditions produce electric power meter.
In the process of generating, transmission of electricity and the power supply of electric system, 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, might cause serious economic loss to electricity consumption enterprise or power supply enterprise.Therefore for the wiring of energy artificial site, need and to make up the various wiring of device, in order to reproduce on-the-spot situation.And in routine was used, most of wires all were by manually connecting, and owing to artificial, may cause connection error, and artificial the connection requires a great deal of time.
Summary of the invention
The object of the invention is to, propose the matrix control method of a kind of electric power meter analogue system and wiring thereof, it can realize intelligent automatic connection process in the 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 voltage transformer (VT) and the current transformer of being located at tested electric energy measuring equipment front end, described voltage transformer (VT) and current transformer are electrically connected by connection controller and the tested electric energy measuring equipment of matrix control respectively, and the connection controller of this two matrixes control 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 communicates to connect with the connection controller that two matrixes are controlled respectively by a chromacoder.
Among the present invention, between the connection controller of described voltage transformer (VT) and matrix control, and all be connected by 4 wires between the connection controller of matrix control and the tested electric energy measuring equipment.
In the specific embodiment of the invention, described voltage transformer (VT) can be electrically connected by connection controller and the tested electric energy measuring equipment that one 4 * 4 matrix is controlled, and each point of crossing in this 4 * 4 matrix all is connected with electronic control switch.
Among the present invention, between the connection controller of described current transformer and matrix control, and all be connected by 6 wires between the connection controller of matrix control and the tested electric energy measuring equipment.
In the specific embodiment of the invention, described current transformer can be electrically connected by connection controller and the tested electric energy measuring equipment that one 6 * 6 matrix is controlled, and each point of crossing in this 6 * 6 matrix all is connected with electronic control switch.
Further, the present invention also provides the matrix control method of a kind of electric power meter analogue system wiring, and it comprises the steps:
The secondary circuit between voltage transformer (VT) and tested electric energy measuring equipment respectively, and the secondary circuit between current transformer and the tested electric energy measuring equipment accesses the connection controller of matrix control, connection controller and the electric connection of tested electric energy measuring equipment that voltage transformer (VT) and current transformer are controlled by matrix respectively;
Connection controller one end of above-mentioned two matrixes control is communicated to connect with a host computer respectively, this host computer is controlled the connection controller of this two matrixes control, between realization voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and the 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 communicates to connect with the connection controller that two matrixes are controlled respectively by a chromacoder.
Moreover, between the connection controller of described voltage transformer (VT) and matrix control, and all be connected by 4 wires between the connection controller of matrix control and the tested electric energy measuring equipment; Connection controller and tested electric energy measuring equipment that this voltage transformer (VT) is controlled by one 4 * 4 matrix are electrically connected, each point of crossing in this 4 * 4 matrix all is connected with electronic control switch, to realize the combination in any of 4 wiring between voltage transformer (VT) and the tested electric energy measuring equipment.
In addition, between the connection controller of described current transformer and matrix control, and all be connected by 6 wires between the connection controller of matrix control and the tested electric energy measuring equipment; Connection controller and tested electric energy measuring equipment that this current transformer is controlled by one 6 * 6 matrix are electrically connected, each point of crossing in this 6 * 6 matrix all is connected with electronic control switch, to realize the combination in any of 6 wiring between current transformer and the tested electric energy measuring equipment.
The matrix control method of electric power meter analogue system of the present invention and wiring thereof, between its voltage transformer (VT) and the tested electric energy measuring equipment, and between current transformer and the tested electric energy measuring equipment all the connection controller by matrix control be connected, can realize the combination in any of wiring, the selection control of these combinations is controlled by computing machine, can in the electric energy metrical simulation process, realize intelligent automatic connection process, improve intellectuality and the robotization of simulation process, the connection error of avoiding artificial wiring to cause, comparatively time saving and energy saving.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
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 voltage transformer (VT) and the tested electric energy measuring equipment connection controller by matrix control is connected among the present invention;
Fig. 3 is the principle schematic that current transformer and the tested electric energy measuring equipment connection controller by matrix control is connected among the present invention;
Fig. 4 is the matrix control method process flow diagram of electric power meter analogue system wiring among the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
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 voltage transformer (VT) (PT) 20 and the current transformer (CT) 30 of being located at tested electric energy measuring equipment 10 front ends, described voltage transformer (VT) 20 and current transformer 30 are electrically connected with tested electric energy measuring equipment 10 by the connection controller 22,32 of matrix control respectively, and the connection controller 22,32 of this two matrixes control all communicates to connect with a host computer 40.Because after electric power meter is applied to the scene, in case go wrong, comparatively difficulty at the scene searches problem, therefore after can recording on-the-spot situation, getting back to the laboratory simulates in this electric power meter analogue system, and in simulation process, need repeatedly to change wiring, and all be by manually connecting in conventional the application, efficient is lower.
Among the present invention, described tested electric energy measuring equipment 10 can be an electric energy meter.In the situation that be noted that electric energy meter directly place in circuit is measured at low-voltage (being no more than 500 volts) and little electric current (tens pacify) when using electric energy meter.In the situation that high voltage or large electric current, electric energy meter is line attachment directly, needs to cooperate voltage transformer (VT) or current transformer to use.For the electric energy meter of direct line attachment, select appropriate size 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, forbidden otherwise measure, so electric energy meter can not select too greatly; Simultaneously, it is too little that electric energy meter can not be selected, if select to get the too little electric energy meter that also easily burns out.
Among the present invention, between the connection controller 22 of described voltage transformer (VT) 20 and matrix control, and all be connected by 4 wires between the connection controller 22 of matrix control and the 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 that one 4 * 4 matrix is controlled, use this matrix control method of 4 * 4, can realize that 4 wires of voltage transformer (VT) 20 outputs are to the combination in any of 4 wires of tested electric energy measuring equipment 10.As shown in Figure 2, each point of crossing in 4 * 4 matrixes all is connected with electronic control switch (not shown), namely 16 point of crossing among the figure all are connected with electronic control switch, this electronic control switch can be switched on or switched off control by host computer 40, thereby realizes that 4 wires of voltage transformer (VT) 20 outputs are to any switching of 4 wiring of tested electric energy measuring equipment 10.
Among the present invention, between the connection controller 32 of described current transformer 30 and matrix control, and all be connected by 6 wires between the connection controller 32 of matrix control and the 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 that one 6 * 6 matrix is controlled, use this matrix control method of 6 * 6, can realize that 6 wires of current transformer 30 outputs are to the combination in any of 6 wires of tested electric energy measuring equipment 10.As shown in Figure 3, each point of crossing in 6 * 6 matrixes all is connected with electronic control switch (not shown), namely 36 point of crossing among the figure all are connected with electronic control switch, this electronic control switch can be switched on or switched off control by host computer 40, thereby realizes that 6 wires of current transformer 30 outputs are to any switching of 6 wiring of tested electric energy measuring equipment 10.
As a kind of selectivity embodiment of the present invention, described host computer 40 can be a computing machine, and this computing machine 40 communicates to connect with the connection controller 22,32 that two matrixes are controlled respectively by a chromacoder 42.Preset software control procedure in this computing machine, the combination in any of 4 wiring between voltage transformer (VT) 20 and the tested electric energy measuring equipment 10, and the combination in any of 6 wiring between current transformer 30 and the tested electric energy measuring equipment 10, the selection control of these combinations can by the software program of computing machine, be controlled by cable L1, chromacoder 42, cable L2.
Further, as shown in Figure 4, the present invention also provides the matrix control method of a kind of electric power meter analogue system wiring, and it comprises the steps:
Step 1, the secondary circuit between voltage transformer (VT) and tested electric energy measuring equipment respectively, and the secondary circuit between current transformer and the tested electric energy measuring equipment accesses the connection controller of matrix control, connection controller and the electric connection of tested electric energy measuring equipment that voltage transformer (VT) and current transformer are controlled by matrix respectively.In the present invention, between the connection controller of described voltage transformer (VT) and matrix control, and all be connected by 4 wires between the connection controller of matrix control and the tested electric energy measuring equipment; Connection controller and tested electric energy measuring equipment that this voltage transformer (VT) is controlled by one 4 * 4 matrix are electrically connected, each point of crossing in this 4 * 4 matrix all is connected with electronic control switch, can realize the combination in any of 4 wiring between voltage transformer (VT) and the tested electric energy measuring equipment.Between the connection controller of current transformer of the present invention and matrix control, and all be connected by 6 wires between the connection controller of matrix control and the tested electric energy measuring equipment; Connection controller and tested electric energy measuring equipment that this current transformer is controlled by one 6 * 6 matrix are electrically connected, each point of crossing in this 6 * 6 matrix all is connected with electronic control switch, can realize the combination in any of 6 wiring between current transformer and the tested electric energy measuring equipment.
Step 2, connection controller one end of above-mentioned two matrixes control is communicated to connect with a host computer respectively, this host computer is controlled the connection controller of this two matrixes control, between realization voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and the 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 communicate to connect with the connection controller that two matrixes are controlled respectively by a chromacoder.Preset software control procedure in this computing machine, the combination in any of 4 wiring between voltage transformer (VT) and the tested electric energy measuring equipment, and the combination in any of 6 wiring between current transformer and the tested electric energy measuring equipment, the selection control of these combinations can by the software program of computing machine, be controlled by cable L1, chromacoder, cable L2.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. electric power meter analogue system, comprise tested electric energy measuring equipment, and voltage transformer (VT) and the current transformer of being located at tested electric energy measuring equipment front end, it is characterized in that, described voltage transformer (VT) and current transformer are electrically connected by connection controller and the tested electric energy measuring equipment of matrix control respectively, and the connection controller of this two matrixes control all communicates to connect with a host computer.
2. electric power meter analogue system as claimed in claim 1 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 communicates to connect with the connection controller that two matrixes are controlled respectively by a chromacoder.
3. electric power meter analogue system as claimed in claim 2 is characterized in that, between the connection controller of described voltage transformer (VT) and matrix control, and all is connected by 4 wires between the connection controller of matrix control and the tested electric energy measuring equipment.
4. electric power meter analogue system as claimed in claim 3, it is characterized in that, connection controller and tested electric energy measuring equipment that described voltage transformer (VT) is controlled by one 4 * 4 matrix are electrically connected, and each point of crossing in this 4 * 4 matrix all is connected with electronic control switch.
5. electric power meter analogue system as claimed in claim 2 is characterized in that, between the connection controller of described current transformer and matrix control, and all is connected by 6 wires between the connection controller of matrix control and the tested electric energy measuring equipment.
6. electric power meter analogue system as claimed in claim 5, it is characterized in that, connection controller and tested electric energy measuring equipment that described current transformer is controlled by one 6 * 6 matrix are electrically connected, and each point of crossing in this 6 * 6 matrix all is connected with electronic control switch.
7. the matrix control method of electric power meter analogue system wiring is characterized in that, comprises the steps:
The secondary circuit between voltage transformer (VT) and tested electric energy measuring equipment respectively, and the secondary circuit between current transformer and the tested electric energy measuring equipment accesses the connection controller of matrix control, connection controller and the electric connection of tested electric energy measuring equipment that voltage transformer (VT) and current transformer are controlled by matrix respectively;
Connection controller one end of above-mentioned two matrixes control is communicated to connect with a host computer respectively, this host computer is controlled the connection controller of this two matrixes control, between realization voltage transformer (VT) and tested electric energy measuring equipment, and the combination in any of wiring between current transformer and the tested electric energy measuring equipment.
8. the matrix control method of electric power meter analogue system as claimed in claim 7 wiring 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 communicates to connect with the connection controller that two matrixes are controlled respectively by a chromacoder.
9. the matrix control method of electric power meter analogue system as claimed in claim 8 wiring, it is characterized in that, between the connection controller of described voltage transformer (VT) and matrix control, and all be connected by 4 wires between the connection controller of matrix control and the tested electric energy measuring equipment; Connection controller and tested electric energy measuring equipment that this voltage transformer (VT) is controlled by one 4 * 4 matrix are electrically connected, each point of crossing in this 4 * 4 matrix all is connected with electronic control switch, to realize the combination in any of 4 wiring between voltage transformer (VT) and the tested electric energy measuring equipment.
10. the matrix control method of electric power meter analogue system as claimed in claim 9 wiring, it is characterized in that, between the connection controller of described current transformer and matrix control, and all be connected by 6 wires between the connection controller of matrix control and the tested electric energy measuring equipment; Connection controller and tested electric energy measuring equipment that this current transformer is controlled by one 6 * 6 matrix are electrically connected, each point of crossing in this 6 * 6 matrix all is connected with electronic control switch, to realize the combination in any of 6 wiring between current transformer and the 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103698736A (en) * | 2013-11-27 | 2014-04-02 | 国家电网公司 | Automatic combined wiring instrument |
| CN105489080A (en) * | 2016-01-06 | 2016-04-13 | 国家电网公司 | Metering system simulation platform |
| CN106249192A (en) * | 2016-09-05 | 2016-12-21 | 中国电力科学研究院 | Detecting system is run at a kind of measuring equipment scene |
| 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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| 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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| CN103064054B (en) | 2015-09-30 |
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