CN104977447A - Electricity stealing analog simulation device and method - Google Patents
Electricity stealing analog simulation device and method Download PDFInfo
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Abstract
The invention provides an electricity stealing analog simulation device and method. The method comprises the following steps: the microprocessor MCU module receives electricity stealing parameters set by the client, wherein the electricity stealing parameters comprise: simulating the type of electricity stealing, the points of electricity stealing, the wiring mode, the voltage, the current and the phase; the MCU module analyzes the electricity stealing parameters, calls an instruction corresponding to the electricity stealing parameters from an electricity stealing mathematical model database, sends a wiring mode instruction to the relay matrix module, and sends a simulated electricity stealing type instruction, a simulated electricity stealing point instruction, a voltage instruction, a current instruction and a phase instruction to the impedance transformation module; the relay matrix module is used for switching on a corresponding voltage current loop through actions of relays related to the relay matrix according to the instruction sent by the MCU module; the impedance conversion module completes the simulation of the electricity stealing type, the electricity stealing point, the voltage, the current and the phase position by adjusting the impedance values of the relevant resistor and the inductor in the module according to the instruction sent by the MCU module.
Description
Technical field
The present invention relates to technical field of electric power, particularly relate to a kind of electricity-stealing simulating simulator and method.
Background technology
Along with the increase of socioeconomic development and power consumption, in society, stealing problem becomes more and more outstanding, and stealing gimmick is hidden all the more.Stealing is huge to the loss that power supply enterprise causes.According to conservative estimation, the economic loss that China causes because electric energy is stolen every year reaches 20,000,000,000 yuan.
But, along with field staff (particularly new employee) on-site experience of power supply enterprise is not enough, technical ability of opposing electricity-stealing is more weak, be difficult to find hidden electricity filching behavior.
On the other hand, along with the development of science and technology, emulation technology and model are more and more ripe, research and develop a set of emulation technology based on typical stealing mode and model becomes possibility, Ye Shi power supply enterprise technical ability of opposing electricity-stealing that is quick, comprehensively raising power utility check personnel, makes up the effective means of one that young power utility check person lacks on-site experience deficiency.
Summary of the invention
For solving the problem that field staff's on-site experience is not enough, technical ability of opposing electricity-stealing is more weak of power supply enterprise, the present invention is from the angle of practicality, closing to reality production scene as far as possible, the on-the-spot various user's measuring apparatus stealing process of altitude simulation simulation demo and process of opposing electricity-stealing.Electricity-stealing simulating simulator provided by the invention and method can carry out analogue simulation reduction to various electricity filching means, by realizing the simulation to main flow, typical case, high-tech stealing electricity method, reach to the field staff of power supply enterprise train current, solve the problem that field staff on-site experience is not enough, technical ability of opposing electricity-stealing is more weak.Simultaneously, electricity-stealing simulating simulator provided by the invention and method may be used for carrying out depth profiling to various stealing gimmick, electric energy meter and electric energy metrical loop data variation tendency after stealing is analyzed with realistic simulation, and one by one verify, special item, be beneficial to as researching and analysing of the measure of opposing electricity-stealing provides scientific basis and platform.
Electricity-stealing simulating simulator provided by the invention and Method And Principle as follows: by the research to electric power meter, electric energy metrical principle, analysis and summary electricity-stealing simulating mathematical model, by setting up the dynamic data base of multiple stealing mode, client software is adopted automatically to set the gear of output voltage, according to the stealing mode that will simulate, from main separation wiring factor change mode, automatically recall corresponding stealing wiring combination, control power supply and output to corresponding mounting epi-position place.
Concrete, electricity-stealing simulating emulation mode provided by the invention comprises:
Micro-processor MCV module receives the stealing parameter of client setting, and described stealing parameter comprises: simulation stealing type, simulation stealing point and the mode of connection, voltage, electric current, phase place;
MCU module resolves described stealing parameter, instruction corresponding to described stealing parameter is transferred in stealing mathematical model database, and send mode of connection instruction to relay matrix module, send simulation stealing type instruction, the instruction of simulation stealing point, voltage instruction, current-order, phase bit instruction to impedance transformation module;
The instruction that described relay matrix module sends according to described MCU module, the action of relay of being correlated with by relay matrix, connects corresponding electric current and voltage loop;
The instruction that impedance transformation module sends according to described MCU module, by the resistance value of related resistors in adjusting module and inductance, completes the simulation to stealing type, stealing point and voltage, electric current, phase place.
Wherein, the instruction that described impedance transformation module sends according to described MCU module, by the resistance value of related resistors in adjusting module and inductance, after completing the simulation to stealing type, stealing point and voltage, electric current, phase place, also comprise: the voltage that impedance transformation module simulates by control output module, electric current, phase parameter export simulation electric energy meter to.
Wherein, controlling voltage that impedance transformation module simulates by output module, electric current, phase parameter export in the process of simulation electric energy meter; protection module carries out overall detection of electrical leakage, over-current detection, earthing detection etc. to each output quantity of control output module, and the notice that notes abnormalities MCU module sends alerting signal and automatic cut-off power module input power.
Wherein, before described Micro-processor MCV module receives the stealing parameter of client setting, also comprise: according to the variation characteristic of various stealing mode voltage, electric current, power factor, set up the stealing mathematical model database describing electric energy metrical wiring by function P=UIcos Φ; Wherein parameter P is active power, and unit is kW; Parameter U is voltage effective value, and unit is kV; Parameter I is current effective value, and unit is A; Parameter cos Φ is power factor.
Wherein, described stealing type comprises: decompression, defluidization, phase shift and or the inner counting of table meter; The described mode of connection comprises: single-phase wiring, three-phase and four-line and or the phase three-wire three mode of connection; Described simulation electric energy meter comprises: comprise single-phase, phase three-wire three and or three-phase and four-line simulation electric energy meter.
Accordingly, the present invention also provides a kind of electricity-stealing simulating simulator, comprising: MCU module, relay matrix module and impedance transformation module;
Described MCU module is embedded scm processing unit, for receiving the stealing parameter of client setting, and after the described stealing parameter of parsing, transfer instruction corresponding to described stealing parameter by stealing mathematical model database and send to described relay matrix module and impedance transformation module respectively;
Described relay matrix module is by the matrix of numerous relay assembly; For completing the conversion of the mode of connection according to the order-driven actuating of relay of described MCU module;
Described impedance transformation module integration is provided with various valued resistor, diode, telefault; For the instruction according to described MCU module, dividing potential drop or current limliting is carried out by voltage circuit or the conversion of current return middle impedance, make the magnitude of voltage being carried in simulation electric energy meter place in voltage circuit lower than actual normal voltage value, the current value in current return is lower than actual normal electrical flow valuve.
Wherein, this device also comprises: control output module, exports simulation electric energy meter to for the voltage in the loop of described relay matrix module and impedance transformation module being built, electric current, phase parameter.
Wherein, this device also comprises: protection module, for tell and control output module each output quantity and carry out overall detection of electrical leakage, over-current detection, earthing detection etc., the notice that notes abnormalities MCU module sends alerting signal and automatic cut-off power module input power.
Wherein, this device also comprises: stealing mathematical model database module, for the variation characteristic according to various stealing mode voltage, electric current, power factor, is set up the stealing mathematical model database describing electric energy metrical wiring by function P=UIcos Φ.
Wherein, this device also comprises: power module, for three-phase mains being accessed described electricity-stealing simulating simulator, and carries out rectification and filtering control to described three-phase mains.
Electricity-stealing simulating simulator provided by the invention and method can make up power supply enterprise part field staff oppose electricity-stealing lack experience, drawback that technical ability of opposing electricity-stealing is on the weak side.Apparatus and method provided by the invention change the electricity filching behavior of the mode of connection by founding mathematical models simulation; embedded scm process data, integrated communication module and computing machine is adopted to exchange the methods such as data; and be aided with the necessary function such as protection, control program, realize the analogue simulation to stealing point, the stealing mode such as voltage transformer (VT) inner, current transformer inner inner at user's measuring apparatus electric energy meters such as single-phase meter user's fee, phase three-wire three formula electric energy meter user's fee, three-phase and four-line formula electric energy meter user's fees respectively.
Further, apparatus and method provided by the invention, its power supply is provided after insulating power supply module and dynamic monitoring control module by civil power, simultaneously by dynamic monitoring control module, realizes overload protection function and creepage protection function.Be aided with the control program adding PC software ACTIVE CONTROL mode based on hardware structure, realize the analogue simulation to stealing point, the stealing mode such as voltage transformer (VT) inner, current transformer inner inner at user's measuring apparatus electric energy meter such as single-phase meter user's fee, phase three-wire three formula electric energy meter user's fee, three-phase and four-line formula electric energy meter user's fee respectively.
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 electricity-stealing simulating emulation mode first embodiment schematic flow sheet provided by the invention;
Fig. 2 is electricity-stealing simulating emulation mode second embodiment schematic flow sheet provided by the invention;
Fig. 3 is electricity-stealing simulating simulator first example structure schematic diagram provided by the invention;
Fig. 4 is electricity-stealing simulating simulator second example structure schematic diagram provided by the invention;
Fig. 5 is the electricity-stealing simulating simulator schematic diagram that the embodiment of the present invention provides;
Fig. 6 is electricity-stealing simulating simulator module work logical diagram provided by the invention;
Fig. 7 is electricity-stealing simulating simulator provided by the invention and method program steering logic figure.
Embodiment
The present invention from the angle of practicality, closing to reality production scene as far as possible, the on-the-spot various user's measuring apparatus stealing process of altitude simulation simulation demo and process of opposing electricity-stealing.Electricity-stealing simulating simulator provided by the invention and method can carry out analogue simulation reduction to various electricity filching means, by realizing the simulation to main flow, typical case, high-tech stealing electricity method, reach to the field staff of power supply enterprise train current, solve the problem that field staff on-site experience is not enough, technical ability of opposing electricity-stealing is more weak.
See Fig. 1, be electricity-stealing simulating emulation mode first embodiment schematic flow sheet provided by the invention, as shown in the figure, this electricity-stealing simulating emulation mode comprises:
Step S101, microprocessor (MCU, Micro Control Unit) module receives the stealing parameter of client setting, and described stealing parameter comprises: simulation stealing type, simulation stealing point and the mode of connection, voltage, electric current, phase place.
Step S102, MCU module resolves described stealing parameter, instruction corresponding to described stealing parameter is transferred in stealing mathematical model database, and send mode of connection instruction to relay matrix module, send simulation stealing type instruction, the instruction of simulation stealing point, voltage instruction, current-order, phase bit instruction to impedance transformation module.
Step S103, the instruction that described relay matrix module sends according to described MCU module, the action of relay of being correlated with by relay matrix, connects corresponding electric current and voltage loop.
Step S104, the instruction that impedance transformation module sends according to described MCU module, by the resistance value of related resistors in adjusting module and inductance, completes the simulation to stealing type, stealing point and voltage, electric current, phase place.
Electricity-stealing simulating emulation mode provided by the invention from the angle of practicality, as far as possible closing to reality production scene, the on-the-spot various user's measuring apparatus stealing process of altitude simulation simulation demo and process of opposing electricity-stealing.Electricity-stealing simulating emulation mode provided by the invention can carry out analogue simulation reduction to various electricity filching means, by realizing the simulation to main flow, typical case, high-tech stealing electricity method, reach to the field staff of power supply enterprise train current, solve the problem that field staff on-site experience is not enough, technical ability of opposing electricity-stealing is more weak.
See Fig. 2, it is electricity-stealing simulating emulation mode second embodiment schematic flow sheet provided by the invention.In the present embodiment, by this electricity-stealing simulating emulation mode of description specifically, specific as follows:
Step S201, according to the variation characteristic of various stealing mode voltage, electric current, power factor, sets up the stealing mathematical model database describing electric energy metrical wiring by function P=UIcos Φ; Wherein parameter P is active power, and unit is kW; Parameter U is voltage effective value, and unit is kV; Parameter I is current effective value, and unit is A; Parameter cos Φ is power factor.
It will be understood by those skilled in the art that, from basic measuring principle and the electric power (P=UIcos Φ) of electric energy meter, can one piece of electric energy meter correctly measure is that correctness by voltage, electric current, power factor three elements and the product of time, installation and wiring determines.Therefore, wherein any one condition of breaking can make electric energy meter slow-speed, stall is even reversed, thus reaches the object of stealing.According to the condition of electric energy metrical, the element in conjunction with electric energy metrical forms, and can be summed up as the impact of following three wiring key elements: voltage transformer (VT) (TV) wiring, current transformer (TA) wiring, the wiring of electric energy meter tail.When supply voltage and steady load, after any one wiring key element changes, be applied to the voltage phasor on electric energy meter potential winding or the electric current phasor on current coil also corresponding change can occur, be applied to the mathematical function that voltage phasor on a certain element of electric energy meter or electric current phasor can be regarded as above three key elements.Therefore, in conjunction with the variation characteristic of each typical stealing mode voltage, electric current, power factor, by P=UIcos Φ (P: active power, unit is kW; U: voltage effective value, unit is kV; I: voltage effective value, unit is A; Cos Φ is power factor) this function can set up the stealing mathematical model database that describes electric energy metrical wiring.
Simultaneously, it should be appreciated by those skilled in the art that this step S201 is initialization step, the electricity-stealing simulating emulation mode that not each enforcement the present embodiment provides all needs to perform this this step, meanwhile, the operations such as stealing mathematical model database can carry out supplementing according to actual needs, revise, adjustment.
Step S202, microprocessor (MCU, Micro Control Unit) module receives the stealing parameter of client setting, and described stealing parameter comprises: simulation stealing type, simulation stealing point and the mode of connection, voltage, electric current, phase place etc.More specifically, in the present embodiment, user can select stealing parameter in client (PC end).Major parameter is the mode of connection (single-phase wiring, three-phase and four-line, the phase three-wire three mode of connection), stealing type (decompression, defluidization, phase shift, table meter inside counting etc.), simulation stealing point, voltage and current output amplitudes, phase place etc.MCU module then receives these stealing parameters that user sets in client.
Step S203, MCU module resolves described stealing parameter, transfers instruction corresponding to described stealing parameter in stealing mathematical model database, and sends mode of connection instruction to relay matrix module; Simulation stealing type instruction, the instruction of simulation stealing point, voltage instruction, current-order, phase bit instruction etc. are sent to impedance transformation module.
Step S204, the instruction that described relay matrix module sends according to described MCU module, the action of relay of being correlated with by relay matrix, is connected corresponding electric current and voltage loop, completes the conversion of the mode of connection, as single-phase, phase three-wire three, three-phase and four-line etc.
Step S205, the instruction that impedance transformation module sends according to described MCU module, by the resistance value of related resistors in adjusting module and inductance, complete the simulation to stealing type (decompression, defluidization, phase shift, table meter inside counting etc.), stealing point and voltage, electric current, phase place.
Step S206, the voltage that impedance transformation module simulates by control output module, electric current, phase parameter export simulation electric energy meter to.Preferably; controlling voltage that impedance transformation module simulates by output module, electric current, phase parameter export in the process of simulation electric energy meter; protection module carries out overall detection of electrical leakage, over-current detection, earthing detection etc. to each output quantity of control output module, and the notice that notes abnormalities MCU module sends alerting signal and automatic cut-off power module input power.
It will be appreciated by persons skilled in the art that described stealing type comprises in the present embodiment: decompression, defluidization, phase shift and or the inner counting of table meter; The described mode of connection comprises: single-phase wiring, three-phase and four-line and or the phase three-wire three mode of connection; Described simulation electric energy meter comprises: comprise single-phase, phase three-wire three and or three-phase and four-line simulation electric energy meter.
The embodiment of the present invention is by the research to electric power meter, electric energy metrical principle, analysis and summary electricity-stealing simulating mathematical model, set up the dynamic data base of multiple stealing mode, PC software is according to the parameters of human-computer interaction interface, automatically corresponding stealing wiring combination is recalled, and automatically set output voltage gear, stealing mode,, the mode of connection, the mounting epi-position place that power supply outputs to correspondence is controlled by controlling output module, make emulation ammeter service data with arrange consistent, thus reach stealing emulation simulation.
In the present embodiment, stealing mathematical model database is a necessary module, understands, implements technical scheme provided by the present invention, do description below and explanation further to stealing mathematical model database for ease of the public and those skilled in the art.
From basic measuring principle and the electric power (P=UIcos Φ) of electric energy meter, can one piece of electric energy meter correctly measure is that correctness by voltage, electric current, power factor three elements and the product of time, installation and wiring determines.Therefore, wherein any one condition of breaking can make electric energy meter slow-speed, stall is even reversed, thus reaches the object of stealing.
According to the condition of electric energy metrical, the element in conjunction with electric energy metrical forms, and can be summed up as the impact of following three wiring key elements: voltage transformer (VT) (TV) wiring, current transformer (TA) wiring, the wiring of electric energy meter tail.When supply voltage and steady load, after any one wiring key element changes, be applied to the voltage phasor on electric energy meter potential winding or the electric current phasor on current coil also corresponding change can occur, be applied to the mathematical function that voltage phasor on a certain element of electric energy meter or electric current phasor can be regarded as above three key elements.Therefore, in conjunction with the variation characteristic of each typical stealing mode voltage, electric current, power factor, by P=UIcos Φ (P: active power, unit is kW; U: voltage effective value, unit is kV; I: voltage effective value, unit is A; Cos Φ is power factor) this function can set up the stealing mathematical model database that describes electric energy metrical wiring.
Set up stealing mathematical model database, the switching of design physical cabling mode, designs and develops computer operation software, the former manual mode of connection is changed into computer software and electricity-stealing simulating hardware platform and to combine mode.After some variablees of client input change, MCU module just can calculate phase relation between each voltage, electric current and magnitude relation according to stealing mathematical model database, thus draws the wiring diagram of various combination, phasor graph, power expression and more positive coefficient.
According to stealing mathematical model database, the mode that we are combined by computer software and electricity-stealing simulating device realizes.Computer software embedding data built-in function, require to send instruction to relay matrix module and impedance transformation module according to electricity-stealing simulating wiring, relay matrix module and impedance transformation module accept instruction and switch corresponding relay termination and complete wiring, and Output rusults is presented on simulation electric energy meter.
Corresponding, the present invention also provides a kind of electricity-stealing simulating simulator, and this electricity-stealing simulating simulator can implement aforesaid electricity-stealing simulating emulation mode.Specific as follows:
Be electricity-stealing simulating simulator first example structure schematic diagram provided by the invention see Fig. 3, as shown in Figure 3, this electricity-stealing simulating simulator comprises: MCU module 1, relay matrix module 2 and impedance transformation module 3;
Described MCU module 1 is embedded scm processing unit, for receiving the stealing parameter of client setting, and after the described stealing parameter of parsing, transfer instruction corresponding to described stealing parameter by stealing mathematical model database and send to described relay matrix module 2 and impedance transformation module 3 respectively.
Described relay matrix module 2 is by the matrix of numerous relay assembly; For completing the conversion of the mode of connection according to the order-driven actuating of relay of described MCU module 1.
Described impedance transformation module 3 integrated installation has various valued resistor, diode, telefault; For the instruction according to described MCU module 1, dividing potential drop or current limliting is carried out by voltage circuit or the conversion of current return middle impedance, make the magnitude of voltage being carried in simulation electric energy meter place in voltage circuit lower than actual normal voltage value, the current value in current return is lower than actual normal electrical flow valuve.
Electricity-stealing simulating simulator provided by the invention from the angle of practicality, as far as possible closing to reality production scene, the on-the-spot various user's measuring apparatus stealing process of altitude simulation simulation demo and process of opposing electricity-stealing.Electricity-stealing simulating simulator provided by the invention can carry out analogue simulation reduction to various electricity filching means, by realizing the simulation to main flow, typical case, high-tech stealing electricity method, reach to the field staff of power supply enterprise train current, solve the problem that field staff on-site experience is not enough, technical ability of opposing electricity-stealing is more weak.
See Fig. 4, it is electricity-stealing simulating simulator second example structure schematic diagram provided by the invention.In the present embodiment, by the concrete structure of each functional module in this electricity-stealing simulating simulator of description specifically and implementation.As shown in Figure 4, this electricity-stealing simulating simulator comprises: MCU module 1, relay matrix module 2 and impedance transformation module 3; For convenience, follow-up under some linguistic context, MCU module 1, relay matrix module 2 and impedance transformation module 3 are referred to as " electricity-stealing simulating device ".
The MCU module 1 of electricity-stealing simulating device can by the requirement of client (PC, single-chip microcomputer) human-computer interaction interface software parameter setting, and after parsing, internally each correlation module sends instruction, switches to corresponding stealing emulation mode.Inner relay matrix module 2 combines according to the library command of software dynamic data, simulates the multiple stealing mode of connection, meets the measuring apparatus mode of opposing electricity-stealing and emulate flexile requirement.Impedance transformation module 3 according to the library command of software dynamic data, by transforming impedance value analog voltage, electric current export amplitude and phasing degree.
Described MCU module 1 is embedded scm processing unit, for receiving the stealing parameter of client setting, and after the described stealing parameter of parsing, transfer instruction corresponding to described stealing parameter by stealing mathematical model database and send to described relay matrix module 2 and impedance transformation module 3 respectively.More specifically, in the present embodiment, user can select stealing parameter in client (PC end).Major parameter is the mode of connection (single-phase wiring, three-phase and four-line, the phase three-wire three mode of connection), stealing type (decompression, defluidization, phase shift, table meter inside counting etc.), simulation stealing point, voltage and current output amplitudes, phase place etc.MCU module 1 receives these stealing parameters that user sets in client, then MCU module 1 resolves described stealing parameter, and in stealing mathematical model database, transfer instruction corresponding to described stealing parameter, send mode of connection instruction to relay matrix module; Simulation stealing type instruction, the instruction of simulation stealing point, voltage instruction, current-order, phase bit instruction etc. are sent to impedance transformation module.
Described relay matrix module 2 is by the matrix of numerous relay assembly; According to the instruction that described MCU module 1 sends, the action of relay of being correlated with by relay matrix, is connected corresponding electric current and voltage loop, completes the conversion of the mode of connection, as single-phase, phase three-wire three, three-phase and four-line etc.
Described impedance transformation module 3 integrated installation has various valued resistor, diode, telefault; For the instruction according to described MCU module 1, dividing potential drop or current limliting is carried out by voltage circuit or the conversion of current return middle impedance, make the magnitude of voltage being carried in simulation electric energy meter place in voltage circuit lower than actual normal voltage value, current value in current return is lower than actual normal electrical flow valuve, and then have influence on the correct metering of electric energy meter, reach the object of stealing demonstration.
In addition, this electricity-stealing simulating simulator also comprises: stealing mathematical model database module 4, control output module 5, protection module 6, power module 7 and for the communication module 8 of modules in finishing device by information interaction.Fig. 5 is the electricity-stealing simulating simulator schematic diagram that the embodiment of the present invention provides.
Stealing mathematical model database module 4 is important modules, understands, implements technical scheme provided by the present invention, do description below and explanation further to stealing mathematical model database for ease of the public and those skilled in the art.
From basic measuring principle and the electric power (P=UIcos Φ) of electric energy meter, can one piece of electric energy meter correctly measure is that correctness by voltage, electric current, power factor three elements and the product of time, installation and wiring determines.Therefore, wherein any one condition of breaking can make electric energy meter slow-speed, stall is even reversed, thus reaches the object of stealing.
According to the condition of electric energy metrical, the element in conjunction with electric energy metrical forms, and can be summed up as the impact of following three wiring key elements: voltage transformer (VT) (TV) wiring, current transformer (TA) wiring, the wiring of electric energy meter tail.When supply voltage and steady load, after any one wiring key element changes, be applied to the voltage phasor on electric energy meter potential winding or the electric current phasor on current coil also corresponding change can occur, be applied to the mathematical function that voltage phasor on a certain element of electric energy meter or electric current phasor can be regarded as above three key elements.Therefore, in conjunction with the variation characteristic of each typical stealing mode voltage, electric current, power factor, by P=UIcos Φ (P: active power, unit is kW; U: voltage effective value, unit is kV; I: voltage effective value, unit is A; Cos Φ is power factor) this function can set up the stealing mathematical model database that describes electric energy metrical wiring.
Set up stealing mathematical model database, the switching of design physical cabling mode, designs and develops computer operation software, the former manual mode of connection is changed into computer software and electricity-stealing simulating hardware platform and to combine mode.After some variablees of client input change, MCU module just can calculate phase relation between each voltage, electric current and magnitude relation according to stealing mathematical model database, thus draws the wiring diagram of various combination, phasor graph, power expression and more positive coefficient.
According to stealing mathematical model database, the mode that we are combined by computer software and electricity-stealing simulating device realizes.Computer software embedding data built-in function, require to send instruction to relay matrix module and impedance transformation module according to electricity-stealing simulating wiring, relay matrix module and impedance transformation module accept instruction and switch corresponding relay termination and complete wiring, and Output rusults is presented on simulation electric energy meter.
Control output module 5, export simulation electric energy meter to for the voltage in the loop of described relay matrix module and impedance transformation module being built, electric current, phase parameter.
Protection module 6, for tell and control output module each output quantity and carry out overall detection of electrical leakage, over-current detection, earthing detection etc., the notice that notes abnormalities MCU module sends alerting signal and automatic cut-off power module input power.Power module 7 is powered to each electricity-stealing simulating device after insulating power supply module and dynamic monitoring control module by civil power.Protection module 6 possesses overload protection function and creepage protection function, and the output of this module directly acts on Power supply loop, can effectively be protected equipment and operator by this technology.For ensureing safety, this installation's power source is powered employing isolation method, makes can not form loop between the earth and insulating power supply rear class.By dynamic protection isolated from power technology, can effectively proterctive equipment personal safety.It is device security protective barrier, in proper operation situation, gives reliable safeguard protection.Three-phase five-wire mode power supply provides working power through general supply isolating switch, isolated from power protection module to device.Be input in fault simulator, output to electric power meter end by mode of connection conversion realization.
Power module 7, for three-phase mains being accessed described electricity-stealing simulating simulator, and carries out rectification and filtering control to described three-phase mains.
It will be understood by those skilled in the art that; electricity-stealing simulating simulator provided by the invention is according to hardware structure; adopt the software ACTIVE CONTROL in MCU module; namely the software Active and Real-time in MCU module wants alarm condition to the protection module of electricity-stealing simulating device; as noted abnormalities; then automatic starting protection pattern, cuts off source circuit.Time without exception, software is sent to electricity-stealing simulating device according to the mode of connection of operation setting, and software is according to instruction out-put supply.
According to above-mentioned functions requirement, Software for Design is divided into serial communication module, database module, communication protocol module, interface view module etc., and the function of each module is as follows:
Serial communication module: the data communication of this module primary responsibility software and F86 cabinet (single-chip microcomputer).Ready order is sent to cabinet, and cabinet performs corresponding action according to command analysis; Or receive the data that cabinet returns.
Database module: this module primary responsibility various faults as requested, generates data command according to communications protocol specification and deposits in database, to treat software application.
Communication protocol module: this module primary responsibility, according to the selection of user, calls corresponding instruction from database, then according to communications protocol encapsulation, generates most complete packet.Cabinet is sent to by serial communication module.Or after serial communication module receives packet, be given to this module, resolve according to communications protocol, delivery interface shows.
Interface view module: this module primary responsibility functionally some are selected, and control, and result display, comprise selection and the control of single-phase electricity-stealing simulating; The selection of phase three-wire three electricity-stealing simulating and control; The selection of three-phase and four-line and typical electricity-stealing simulating thereof and control; The copying of electric energy meter prompting message is got and result display etc.
Electricity-stealing simulating simulator provided by the invention, according to the work-based logic of each module and the electricity-stealing simulating Mathematic Model Library set up, develops corresponding control software design, realizes the stealing Simulation Control based on electricity-stealing simulating Mathematic Model Library.Can control the various forms of stealing mode of stealing emulator automatic imitation measuring apparatus by software design patterns, its module work logic as shown in Figure 7.
Electricity-stealing simulating simulator provided by the invention is by interface view module, realize man-machine conversation, and in view interface, form of power is configured, and stealing electricity method is set, by with database module communication, call electricity-stealing simulating mathematical model, control imitation electric energy meter carries out stealing analogue simulation, and programmed logic as shown in Figure 7.
Electricity-stealing simulating simulator provided by the invention and method attainable stealing copying comprise as follows:
1, single-phase electric energy meter stealing copying
(1) the stealing mode of stealing point in electric energy meter:
Normally, potential winding broken string, potential winding string diode, potential winding crosstalk resistance, current coil reversal connection, zero fiery reversal connection, short circuit current coil, two family associatings.
(2) stealing point is in the stealing mode of voltage transformer (VT):
Normally, broken string, string diode, crosstalk resistance, reversal connection, reversal connection string diode, reversal connection crosstalk resistance, voltage get the metering of CT low side.
(3) stealing point is in the stealing mode of current transformer:
Normally, break, string diode, crosstalk resistance, reversal connection, reversal connection string diode, reversal connection crosstalk resistance, change no-load voltage ratio, change no-load voltage ratio string diode, change no-load voltage ratio crosstalk resistance, change no-load voltage ratio and reversal connection, replacing no-load voltage ratio and reversal connection string diode, change no-load voltage ratio and reversal connection crosstalk resistance, short circuit mutual inductor.
2, phase three-wire three formula electric energy meter stealing copying
(1) the stealing mode of stealing point in electric energy meter:
Normally, current coil short circuit, potential winding broken string, potential winding string diode, potential winding crosstalk resistance, current coil reversal connection.
(2) stealing point is in the stealing mode of voltage transformer (VT):
Normally, broken string, string diode, crosstalk resistance, change voltage phase sequence.
(3) stealing point is in the stealing mode of current transformer:
Normally, string diode, crosstalk resistance, reversal connection, reversal connection string diode, reversal connection crosstalk resistance, transformation ratio, transformation hinder than reversal connection crosstalk than reversal connection string diode, transformation, break, show tail short circuit, mutual inductor secondary short circuit, change electric current phase sequence than crosstalk resistance, transformation than reversal connection, transformation than string diode, transformation.
3, three-phase and four-line formula electric energy meter stealing copying
(1) the stealing mode of stealing point in electric energy meter:
Normally, current coil short circuit, potential winding broken string, potential winding string diode, potential winding crosstalk resistance, current coil reversal connection, change voltage phase sequence.
(2) stealing point is in the stealing mode of voltage transformer (VT):
Normally, break, string diode, crosstalk resistance, change voltage phase sequence.
(3) stealing point is in the stealing mode of current transformer:
Normally, string diode, crosstalk resistance, reversal connection, reversal connection string diode, reversal connection crosstalk resistance, transformation ratio, transformation hinder than reversal connection crosstalk than reversal connection string diode, transformation, break, show tail short circuit, mutual inductor secondary short circuit, change electric current phase sequence than crosstalk resistance, transformation than reversal connection, transformation than string diode, transformation.
Electricity-stealing simulating simulator provided by the invention can make up power supply enterprise part field staff oppose electricity-stealing lack experience, drawback that technical ability of opposing electricity-stealing is on the weak side.Device provided by the invention changes the electricity filching behavior of the mode of connection by founding mathematical models simulation; embedded scm process data, integrated communication module and computing machine is adopted to exchange the methods such as data; and be aided with the necessary function such as protection, control program, realize the analogue simulation to stealing point, the stealing mode such as voltage transformer (VT) inner, current transformer inner inner at user's measuring apparatus electric energy meters such as single-phase meter user's fee, phase three-wire three formula electric energy meter user's fee, three-phase and four-line formula electric energy meter user's fees respectively.
Further, device provided by the invention, its power supply is provided after insulating power supply module and dynamic monitoring control module by civil power, simultaneously by dynamic monitoring control module, realizes overload protection function and creepage protection function.Be aided with the control program adding software ACTIVE CONTROL mode based on hardware structure, realize the analogue simulation to stealing point, the stealing mode such as voltage transformer (VT) inner, current transformer inner inner at user's measuring apparatus electric energy meter such as single-phase meter user's fee, phase three-wire three formula electric energy meter user's fee, three-phase and four-line formula electric energy meter user's fee respectively.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. an electricity-stealing simulating emulation mode, is characterized in that, comprising:
Micro-processor MCV module receives the stealing parameter of client setting, and described stealing parameter comprises: simulation stealing type, simulation stealing point and the mode of connection, voltage, electric current, phase place;
MCU module resolves described stealing parameter, instruction corresponding to described stealing parameter is transferred in stealing mathematical model database, and send mode of connection instruction to relay matrix module, send simulation stealing type instruction, the instruction of simulation stealing point, voltage instruction, current-order, phase bit instruction to impedance transformation module;
The instruction that described relay matrix module sends according to described MCU module, the action of relay of being correlated with by relay matrix, connects corresponding electric current and voltage loop;
The instruction that impedance transformation module sends according to described MCU module, by the resistance value of related resistors in adjusting module and inductance, completes the simulation to stealing type, stealing point and voltage, electric current, phase place.
2. electricity-stealing simulating emulation mode as claimed in claim 1, it is characterized in that, the instruction that described impedance transformation module sends according to described MCU module, by the resistance value of related resistors in adjusting module and inductance, after completing the simulation to stealing type, stealing point and voltage, electric current, phase place, also comprise:
The voltage that impedance transformation module simulates by control output module, electric current, phase parameter export simulation electric energy meter to.
3. electricity-stealing simulating emulation mode as claimed in claim 2; it is characterized in that; controlling voltage that impedance transformation module simulates by output module, electric current, phase parameter export in the process of simulation electric energy meter; protection module carries out overall detection of electrical leakage, over-current detection, earthing detection etc. to each output quantity of control output module, and the notice that notes abnormalities MCU module sends alerting signal and automatic cut-off power module input power.
4. electricity-stealing simulating emulation mode as claimed in claim 3, is characterized in that, described Micro-processor MCV module also comprises before receiving the stealing parameter of client setting:
According to the variation characteristic of various stealing mode voltage, electric current, power factor, set up the stealing mathematical model database describing electric energy metrical wiring by function P=UIcos Φ; Wherein parameter P is active power, and unit is kW; Parameter U is voltage effective value, and unit is kV; Parameter I is current effective value, and unit is A; Parameter cos Φ is power factor.
5. the electricity-stealing simulating emulation mode according to any one of Claims 1-4, is characterized in that,
Described stealing type comprises: decompression, defluidization, phase shift and or the inner counting of table meter;
The described mode of connection comprises: single-phase wiring, three-phase and four-line and or the phase three-wire three mode of connection;
Described simulation electric energy meter comprises: comprise single-phase, phase three-wire three and or three-phase and four-line simulation electric energy meter.
6. an electricity-stealing simulating simulator, is characterized in that, comprising: MCU module, relay matrix module and impedance transformation module;
Described MCU module is embedded scm processing unit, for receiving the stealing parameter of client setting, and after the described stealing parameter of parsing, transfer instruction corresponding to described stealing parameter by stealing mathematical model database and send to described relay matrix module and impedance transformation module respectively;
Described relay matrix module is by the matrix of numerous relay assembly; For completing the conversion of the mode of connection according to the order-driven actuating of relay of described MCU module;
Described impedance transformation module integration is provided with various valued resistor, diode, telefault; For the instruction according to described MCU module, dividing potential drop or current limliting is carried out by voltage circuit or the conversion of current return middle impedance, make the magnitude of voltage being carried in simulation electric energy meter place in voltage circuit lower than actual normal voltage value, the current value in current return is lower than actual normal electrical flow valuve.
7. electricity-stealing simulating simulator as claimed in claim 6, it is characterized in that, this device also comprises:
Control output module, export simulation electric energy meter to for the voltage in the loop of described relay matrix module and impedance transformation module being built, electric current, phase parameter.
8. electricity-stealing simulating simulator as claimed in claim 7, it is characterized in that, this device also comprises:
Protection module, for tell and control output module each output quantity and carry out overall detection of electrical leakage, over-current detection, earthing detection etc., the notice that notes abnormalities MCU module sends alerting signal and automatic cut-off power module input power.
9. electricity-stealing simulating simulator as claimed in claim 8, it is characterized in that, this device also comprises:
Stealing mathematical model database module, for the variation characteristic according to various stealing mode voltage, electric current, power factor, sets up the stealing mathematical model database describing electric energy metrical wiring by function P=UIcos Φ.
10. the electricity-stealing simulating simulator according to any one of claim 6 to 8, is characterized in that, this device also comprises:
Power module, for three-phase mains being accessed described electricity-stealing simulating simulator, and carries out rectification and filtering control to described three-phase mains.
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