CN207782379U - A kind of Intelligent single-phase electricity consumption identification protecting controller - Google Patents

Abstract

The utility model discloses a kind of Intelligent single-phase electricity consumption identification protecting controllers, it includes the surging prevention module for accessing external power supply, current-voltage measurement and handover module, connect the electric protection switch module of load, microprocessor and peripheral circuit module, the microprocessor and the current-voltage measurement and handover module, the electric protection switch modular telecommunications number connection, the current-voltage measurement and handover module include the range that is arranged on the surging prevention module output circuit gradually increased current transformer, the measurement chip being connect with the surging prevention module output end by voltage changer, leakage current sensor in the current transformer output end is set, each current transformer is electrically connected by relay switch and the microprocessor respectively.The utility model can learn the operating characteristic of electrical equipment, the working condition and feature of automatic identification apparatus；Realize overload, short circuit and the adaptive guard to leak electricity.

Description

A kind of Intelligent single-phase electricity consumption identification protecting controller

【Technical field】

The utility model is related to a kind of controllers, more particularly to a kind of Intelligent single-phase electricity consumption identification protecting controller.

【Background technology】

Currently, people’s lives can not leave electric power, the various household electrical appliances in average family life, the office in each enterprise Equipment and manufacturing equipment, the new energy electric power automobile etc. even in people's trip tool, more and more power products Appear in every field.In these power products, charge power supply seems essential.Work shape pair with each power product The monitoring of state and electric prospection also become particularly important.

【Utility model content】

The main purpose of the utility model is to provide a kind of Intelligent single-phase electricity consumption identification protecting controllers, can learn automatically The operating characteristic of electrical equipment, the working condition and feature of automatic identification apparatus；Realize the adaptive of overload, short circuit and electric leakage Protection；And control accuracy is high.

The utility model is achieved through the following technical solutions above-mentioned purpose：A kind of Intelligent single-phase electricity consumption identification protecting control Device comprising the electronics of surging prevention module, current-voltage measurement and the handover module, connection load that access external power supply is protected Protect switch module, microprocessor and peripheral circuit module, the microprocessor and the current-voltage measurement and handover module, institute The connection of electric protection switch modular telecommunications number is stated, the current-voltage measurement and handover module include that setting is protected in the Anti-surging Shield module output circuit on range gradually increased current transformer, pass through voltage changer and the surging prevention module Leakage current sensor in the current transformer output end is arranged in the measurements chip of output end connection, and each the electric current is mutual Sensor is electrically connected by relay switch and the microprocessor respectively.

Compared with prior art, a kind of advantageous effect of Intelligent single-phase electricity consumption identification protecting controller of the utility model exists In：Without increasing other sensors, only by measure with record single-phase electric current, voltage, power with equipment because The combination of the electric characteristics such as number, percent harmonic distortion carries out the operating characteristic of study electrical equipment, the work shape of automatic identification apparatus State and feature；By it for the overload protection of electrical feature adjust automatically current supply circuit, short-circuit protection and earth leakage protective setting Value realizes adaptive guard；By WIFI wireless networks and cell phone application progress data exchange, it can be achieved that the work to electrical equipment Make feature show, electric parameter monitoring, protection act information alert, the functions such as long-range switching electricity.

【Description of the drawings】

Fig. 1 is the modularized circuit control principle schematic diagram of the utility model embodiment；

Fig. 2 is the main control logic flow diagram of the utility model embodiment；

Fig. 3 is the control flow schematic diagram of exchange acquisition and switch logic in Fig. 2；

Fig. 4 is the control flow schematic diagram that virtual value and power, generator rotor angle read logic in Fig. 2；

Fig. 5 is the control flow schematic diagram of Current harmonic distortion rate calculating logic in Fig. 2；

Fig. 6 is the control flow schematic diagram of state study and storage logic in Fig. 2；

Fig. 7 is the control flow schematic diagram of state identification and search logic in Fig. 2；

Fig. 8 is the control flow schematic diagram of short circuit and overload adaptive guard in Fig. 2；

Fig. 9 is the control flow schematic diagram of earth leakage protective and electric voltage exception protection in Fig. 2；

Figure 10 is residual current protection operation curve figure；

Figure 11 is the control flow schematic diagram of WIFI communication and data transmission remote control logic in Fig. 2.

【Specific implementation mode】

Embodiment：

Fig. 1 is please referred to, the present embodiment is Intelligent single-phase electricity consumption identification protecting controller comprising accesses the anti-of external power supply The electric protection switch module 3 and microprocessor that surge protection module 1, current-voltage measurement and handover module 2, connection load MCU and peripheral circuit module 4, Micro-processor MCV and current-voltage measurement and handover module 2,3 telecommunications of electric protection switch module Number connection.

Surging prevention module 1 is mainly made of anti-surge protection circuit and AC/DC power modules.The surging prevention Circuit main function is damaged when protecting back-end circuit not by mine transmitting device, mainly by varistor, common mode inductance with And X capacitances and Y capacitance are constituted.The AC/DC power modules, are high frequency switch powers, are at DC5V by AC220V voltage transformations Controller provides power supply, while having the function of the external forceful electric power interference of isolation.

Current-voltage measurement and handover module 2 include three amounts being arranged on 1 output circuit of surging prevention module Journey gradually increased current transformer TA1~TA3, connect with 1 output end of surging prevention module by voltage changer TV It measures chip, the leakage current sensor TA4 in current transformer TA1~TA3 output ends is set.Current transformer TA1, TA2, TA3 is electrically connected by relay switch J1, J2, J3 and Micro-processor MCV respectively.

AC220V is transformed into microprocessor by voltage changer TV can handle AC signal Uln, the Uln signal one of identification Road enters in the measurement chip, and another way enters in the ADC conversion circuits of Micro-processor MCV.TA1~TA3 is three Current transformer with different measuring ranges, TA3 ranges are maximum, and TA1 ranges are minimum.TA4 is leakage current sensor, power supply L, N conducting wires are passed through from leakage current sensor TA4, when if there is electric leakage, due to the electric current formed synthesis magnetic in L, N conducting wire Field is no longer zero, and leakage current sensor TA4 can form output leakage current output ILD.J1, J2, J3 are switching relay switch, micro- Processor MCU controls the closure of J1~J3 by J1ctr~J3ctr to select one of current transformer to be connected respectively, Electric current Iln is measured to select most suitable range, electric current Iln signals are entered all the way in the measurement chip, another way It enters in the ADC conversion circuits of Micro-processor MCV.The measurement chip is to constitute to measure electric current Iln, electricity using hardware circuit Uln virtual values and power P ln, generator rotor angle PFln special chips are pressed, its main feature is that high certainty of measurement, reliable and stable, microprocessor MCU carries out digital independent and initialization etc. by SPI2 interfaces and the measurement chip.

Electric protection switch module 3 includes electric protection switch S1 and electronic switch driving circuit.Electric protection switch S1 It is static electronic switch, Micro-processor MCV controls signal by S1ctr and controls S1's by the electronic switch driving circuit Conducting and shutdown.When control detects that overload, short circuit and electric leakage occurs in load, control electric protection switch S1 is rapidly closed It is disconnected, avoid circuit and equipment damage.Meanwhile long-range break-make control can be carried out by APP.

Peripheral circuit module 4 includes the WIFI circuits being electrically connected with Micro-processor MCV, memory EEPROM, OLED aobvious Show and push-button unit and overload instruction GZ_LED, short circuit instruction DL_LED and electric leakage instruction LD_LED.WIFI circuits be responsible for and External wireless router carries out data communication, and data are finally connected with the APP of mobile phone, by the data of control measurement, protection In information and some state transfers to APP, Micro-processor MCV and WIFI circuits use SPI communication interfaces.Memory EEPROM It is nonvolatile memory, the electrical equipment feature of essential record Micro-processor MCV identification, such as electric current, voltage, power, generator rotor angle Etc. information, the communication of memory EEPROM and Micro-processor MCV is I2C communication interfaces.OLED is shown and push-button unit constitutes The man-machine interactive interface of whole system, some main informations of OLED display systems, button is used for setting or Query Information.Overload Instruction GZ_LED, short circuit instruction DL_LED and electric leakage instruction tri- indicator lights of LD_LED are shown using LED.

Fig. 2 is please referred to, the control method of the present embodiment Intelligent single-phase electricity consumption identification protecting controller includes the following steps：

S1：Initialization program；

S2：Execute exchange acquisition and switch logic；

S3：It executes virtual value and power, generator rotor angle reads logic；

S4：Execute Current harmonic distortion rate calculating logic；

S5：Execution state learns and storage logic；

S6：Execute state identification and search logic；

S7：Execute short circuit and overload adaptive guard logic；

S8：Execute earth leakage protective and electric voltage exception relay protective scheme；

S9：Execute WIFI communication and data transmission remote control logic；

S10：Execute man-machine interface processing logic；

S11：Repeat step S2~S9.

Wherein, Fig. 3 is please referred to, the exchange acquisition and switch logic in step S2 include the following steps：

S201：Exchange acquisition and switch logic start；

S202：Micro-processor MCV control J3ctr makes J3 relay nodes be closed, and control J1ctr, J2ctr make J1, J2 after Electric appliance node disconnects；

S203：The output valve I3 of TA3 is read, starts ADC and carries out analog-to-digital conversion, measuring and calculating electric current Iac3；

S204：Judge whether electric current Iac3 is less than and measure threshold Is3, if so, carrying out in next step；If it is not, then will Iac3 converts sampled data and Iacduf sampled data buffering areas is written, and executes step S211；

S205：Control J2ctr makes J2 relay nodes be closed, and control J1ctr, J3ctr keep J1, J3 relay node disconnected It opens；

S206：TA2 output valve I2 are read, starts ADC and carries out analog-to-digital conversion, measuring and calculating electric current Iac2；

S207：Judge whether electric current Iac2 is less than and measures threshold Is2；If so, carrying out in next step；If it is not, then will Iac2 converts sampled data and Iacduf sampled data buffering areas is written, and executes step S211；

S208：Control J1ctr makes J1 relay nodes be closed, and control J2ctr, J3ctr keep J2, J3 relay node disconnected It opens；

S209：TA1 output valve I1 are read, starts ADC and carries out analog-to-digital conversion, measuring and calculating electric current Iac1；

S210：Iacduf sampled data buffering areas are written into Iac1 conversion sampled datas；

S211：Control J1ctr, J2ctr, J3ctr make J1, J2, J3 relay node disconnect；

S212：TV output valve Uln are read, starts ADC and carries out analog-to-digital conversion, calculate the fundamental voltage amplitude size Uln1 of Uln；

S213：TA4 output valve ILD are read, starts ADC and carries out analog-to-digital conversion, measuring and calculating leakage current fundamental voltage amplitude ILD1 is big It is small, and terminate logic.

Since (the bigger measurement accuracy of range is more there are certain contradiction for the range ability and measurement accuracy of load current It is low).Therefore the present embodiment carries out range switching using three current transformer TA1~TA3 and three switching relay J1~J3 It measures, the range of TA1~TA3 is ascending.Control logic is identified by judging threshold IS3, IS2 of electric current using most Rational range measurement range ensures the precision measured.Its measurement range selection control logic explanation is as shown in table 1.

1 switching range control table of table

Electric current	TA is selected	J1	J2	J3	Buffering area Iacduf
						>IS3	TA3	Point	Point	It closes	Iac3->Iacduf
<IS3 and>IS2	TA2	Point	It closes	Point	Iac2->Iacduf
						<IS2	TA1	It closes	Point	Point	Iac1->Iacduf

Fig. 4 is please referred to, the virtual value and power, generator rotor angle in step S3 read logic and include the following steps：

S301：Virtual value and power, generator rotor angle read logic and start；

S302：It is read by SPI2 and measures chip reading Uln all-wave virtual values Ulnrms；

S303：It is read by SPI2 and measures chip reading Iln all-wave virtual values Ilnrms；

S304：It is read by SPI2 and measures chip reading load active power Pln；

S305：It is read by SPI2 and measures chip reading bearing power angle PFln, and terminate logic.

Fig. 5 is please referred to, the Current harmonic distortion rate calculating logic in step S4 includes the following steps：

S401：Current harmonic distortion rate calculating logic starts；

S402：Data, which are read, from Iacduf sampled datas area calculates Iln fundamental voltage amplitudes Iln1；

S403：Calculate harmonic current total harmonic distortion：

THDiz=SQRT (Ilnrms*Ilnrms-Iln1*Iln1)/Iln1*100%；

S404：Calculate even harmonics aberration rate：

THDi2n=SQRT (Σ (I2*I2+ ... I2n*I2n)/Iln1*100%；

S405：Calculate odd harmonics aberration rate：

THDi (2n+1)=SQRT (Σ (I3*I3+ ... I (2n+1) * I (2n+1))/Iln1*100%, and terminate logic.

Fig. 6 is please referred to, the state study in step S5 includes the following steps with storage logic：

S501：State learns to start with storage logic；

S502：Starting state study indicates and judges whether state study mark StduyFlag is equal to 1, if so, carrying out In next step；If it is not, then terminating logic；

S503：Starting state study mark StduyFlag, and judge whether state study mark StduyFlag is equal to 2, If it is not, then carrying out in next step；If so, thening follow the steps S513；

S504：Learning time counter Ts resets；

S505：Electric current maximum Imax, minimum value Imin initializations, i.e. Imax=Imin=Ilnrms；

S506：Power maximum Pmax, minimum value Pmin initializations, i.e. Pmax=Pmin=Pln；

S507：Generator rotor angle maximum PFmax, minimum value PFmin initializations, i.e. PFmax=PFmin=PFln；

S508：Total harmonic distortion maximum THDizmax, minimum value THDizmin initializations, i.e. THDizmax=THDizmin =THDiz；

S509：Even aberration rate maximum THDi2nmax, minimum value THDi2nmin initializations, i.e. THDi2nmax= THDi2nmin=THDi2n；

S510：Odd times aberration rate maximum THDi (2n+1) max, minimum value THDi (2n+1) min initializations, i.e. THDi (2n+1) max=THDi (2n+1) min=THDi (2n+1)；

S511：Voltage maximum Umax, minimum value Umin initializations, i.e. Umax=Umin=Ulnrms；

S512：Starting state study mark StduyFlag is equal to 2；

S513：If Imax<Ilnrms then executes Imax=Ilnrms；If Imin>Ilnrms then executes Imin= Ilnrms；

S514：If Pmax<Pln then executes Pmax=Pln；If Pmin>Pln then executes Pmin=Pln；

S515：If PFmax<PFln then executes PFmax=PFln；If PFmin>PFln then executes PFmin=PFln；

S516：If THDizmax<THDiz then executes THDizmax=THDiz；If THDizmin>THDiz is then executed THDizmin=THDiz；

S517：If THDi2nmax<THDi2n then executes THDi2nmax=THDi2n；If THDi2nmin>THDi2n, then Execute THDi2nmin=THDi2n；

S518：THDi if (2n+1) max<THDi (2n+1) then executes THDi (2n+1) max=THDi (2n+1)；If THDi(2n+1)min>THDi (2n+1) then executes THDi (2n+1) min=THDi (2n+1)；

S519：If Umax<Ulnrms then executes Umax=Ulnrms；If Umin>Ulnrms then executes Umin= Ulnrms；

S520：Judge whether learning time counter Ts is more than 5 seconds, if so, carrying out in next step, if it is not, then terminating Logic；

S521：Calculate average voltage Uavr=(Umax+Umin)/2；

S522：Read study serial number StdNo, and by study serial number StdNo by Uavr, Imax, Imin, Pmax, Pmin, PFmax、PFmin、THDizmax、THDizmin、THDi2nmax、THDi2nmin、THDi(2n+1)max、THDi(2n+1)min It is deposited into memory EEPROM, storage device operating characteristic attribute is manually entered by WIFI；

S523：Starting state study mark StduyFlag=0, StdNo=StdNo+1, recognize state StSearchFlag =0, and terminate logic.

The state of electrical equipment learns and storage, learns shown in logic chart 6.The essential electrical characteristic quantity of study is shown in Table 2 It is shown.

2 electrical equipment learning characteristic amount of table

For different electrical equipments, the identification of electrical equipment is identified using electric current, power, generator rotor angle and harmonic parameters Difference.Since electrical equipment is in operation there is certain variation, the maximin of characteristic parameter is recorded, will be known Other parameters calibration is within the scope of minimax.The attribute of electrical equipment can be set by man-machine interface or the sides such as WIFI settings Formula inputs, such as " washing machine ", " air-conditioning ".EEPROM is recorded according to study serial number StdNo in the record parameter of electrical equipment In, recognize logic for subsequent electrical equipment.

Fig. 7 is please referred to, the state identification in step S6 includes the following steps with search logic：

S601：State identification starts with search logic；

S602：Judge whether state identification mark StSearchFlag is equal to 1, if so, terminating logic；If it is not, then It carries out in next step；

S603：Execute current power identification association serial number PIStIDNo=0, current power identification inquiry serial number PIStINChkNo=0, conversion factor Ku=Uavr/Ulnrms；

S604：Judge whether PIStINChkNo is less than StdNo, if so, executing PIStINChkNo=PIStINChkNo + 1, and next step is executed, if not thening follow the steps S606；

S605：Judge Imin<Ilnrms*Ku<Imax&&Pmin<Pln*Ku<Whether Pmax is true, if so, executing PIStIDNo=PIStINChkNo, and carry out in next step, if it is not, then directly executing next step；

S606：Execute generator rotor angle identification association serial number PFStIDNo=0, generator rotor angle identification inquiry serial number PFStINChkNo=0；

S607：Judge PFStINChkNo<Whether StdNo is true, if so, carrying out in next step, if it is not, then executing step Rapid S609；

S608：PFStINChkNo=PFStINChkNo+1 is executed, and judges PFmin<PFln<Whether PFmax is true, if It is then to execute PFStIDNo=PFStINChkNo, and execute next step, if it is not, then directly executing next step；

S609：Total harmonic distortion identification association serial number THDizStIDNo=0, total harmonic distortion identification inquiry serial number THDizStINChkNo=0；

S610：Judge THDizStINChkNo<Whether StdNo is true, if so, THDizStINChkNo= THDizStINChkNo+1, and carry out in next step, if it is not, thening follow the steps S612；

S611：Judge THDizmin<THDiz<Whether THDizmax is true, if so, executing THDizStIDNo= THDizStINChkNo, and next step is executed, if it is not, then directly executing next step；

S612：Even aberration rate identification association serial number THDi2nStIDNo=0, even aberration rate identification inquiry serial number THDi2nStINChkNo=0；

S613：Judge THDi2nStINChkNo<Whether StdNo is true, if so, executing THDi2nStINChkNo= THDi2nStINChkNo+1, and carry out in next step, if it is not, thening follow the steps S615；

S614：Judge THDi2nmin<THDi2n<Whether THDi2nmax is true, if so, executing THDi2nStIDNo= THDi2nStINChkNo, and carry out in next step, if it is not, then directly executing next step；

S615：Odd times aberration rate identification association serial number THDi (2n+1) StIDNo=0, odd times aberration rate identification inquiry serial number THDi (2n+1) StINChkNo=0；

S616：Judge THDi (2n+1) StINChkNo<Whether StdNo is true, if so, executing THDi (2n+1) StINChkNo=THDi (2n+1) StINChkNo+1, and carry out in next step, if it is not, thening follow the steps S618；

S617：Judge THDi (2n+1) min<THDi(2n+1)<Whether THDi (2n+1) max is true, if so, THDi (2n+1) StIDNo=THDi (2n+1) StINChkNo, and carry out in next step, if it is not, then directly executing next step；

S618：Execute state recognition serial number StIDNo=0, state recognition counter StIDCou=0；

S619：Init state identifies array,

StIDBuf [5]={ PIStIDNo, PFStIDNo, THDizStIDNo, THDi2nStIDNo, THDi (2n+1) StIDNo}；

S620：Execute i=0, j=i+1；

S621：Execute j=i+1；

S622：Judge whether StIDBuf [i]==StIDBuf [j] is true, if so, executing StIDCou=StIDCou + 1, StIDNo=StIDBuf [i], and carry out in next step, if it is not, then directly carrying out in next step；

S623：Execute j=j+1；

S624：Judge j<Whether 5 is true, if so, S622 is thened follow the steps, if it is not, then executing i=i+1；

S625：Judge i<Whether 4 is true, if so, S621 is thened follow the steps, if it is not, then carrying out in next step；

S626：Judge StIDCou>Whether 2 is true, if so, state recognition success, the category that does well is read by StIDNo Property, it is shown on OLED, instruction electricity condition StSearchFlag=0, and terminate logic；If it is not, then state is unidentified, into Enter to learning state, starting state study mark StduyFlag=1, StSearchFlag=1, and terminates logic.

The identification logic of electrical equipment is shown in Fig. 7, which is associated with method for searching using characteristic quantity, if entering a certain spy Sign amount is associated with (entering within the scope of its maximum max- minimum min, be considered as being associated with this feature amount), as shown in table 3, table 3 show using characteristic quantity identification range, if entering this feature amount identification range, the study of identification mark meeting record storage Serial number compares the record storage serial number that identification mark is identified after recognizing characteristic quantity identification when 5, if 5 identifications are special Have in sign amount record number 3 or more it is identical, then take its recording mechanism read electricity consumption characteristic attribute.

3 electrical equipment characteristic quantity of table recognizes table

Fig. 8 is please referred to, the short circuit in step S7 includes the following steps with overload adaptive guard logic：

S701：Short circuit starts with overload adaptive guard logic；

S702：Judge whether starting state study mark StduyFlag=1 is true, if so, terminate logic, if it is not, It then carries out in next step；

S703：Judge whether state identification mark StSearchFlag=1 is true, if so, terminate logic, if it is not, The maximum current Imax of state recording is then read out by StIDNo, and calculates Ku；

S704：Judge whether overload mark GZFlag=1 is true, if so, terminating logic, if it is not, then carrying out next Step；

S705：Judge Ilnrms*Ku>Whether 1.5*Imax is true, if so, carrying out in next step, if it is not, then executing Counter GZCou=0 is carried, and executes step S707；

S706：Judge overload counter GZCou>Whether 3s is true, if so, executing overload mark GZFlag=1, control S1ctr formula electronic switches S1 is disconnected, cut-out power supply, and control GZctr controls overload light GZ_LED is lighted, while OLED is shown Overload messages and size of current, and carry out in next step；If it is not, then directly carrying out in next step；

S707：Judge whether short circuit mark DLFlag=1 is true, if so, terminating logic, if it is not, then carrying out next Step；

S708：Judge Ilnrms*Ku>Whether 5*Imax is true, if so, carrying out in next step, if it is not, executing short circuit meter Number device DLCou=0, and terminate logic；

S709：Judge short-circuit counter DLCou>Whether 0.05s is true, if so, short circuit mark DLFlag=1 is executed, It controls S1ctr formula electronic switches S1 to disconnect, cut-out power supply, control DLctr controls short circuit indicator light DL_LED is lighted, while OLED It shows short circuit information and size of current, and terminates logic；If it is not, then directly terminating logic.

Short circuit is with overload adaptive guard logic by after the electrical equipment working attributes and state that pick out, reading record Current maxima Imax and by voltage convert COEFFICIENT K u, come automatic computation overload and short circuit protection threshold setting value.It crosses The setting value for carrying protection is set by 1.5*Imax values, and the setting value of short-circuit protection is set by 5*Imax values.Setting value is by use After the state identification of electric equipment, the working condition of electrical equipment can be adapted to automatically, and meets reliable protection sensitivity.

Fig. 9 is please referred to, the earth leakage protective in step S8 includes the following steps with electric voltage exception relay protective scheme：

S801：Earth leakage protective starts with electric voltage exception relay protective scheme；

S802：Judge whether starting state study mark StduyFlag=1 is true, if so, terminate logic, if it is not, It then carries out in next step；

S803：Judge whether state identification mark StSearchFlag=1 is true, if so, terminate logic, if it is not, The maximum current Imax of state recording is then read out by StIDNo, and calculates Ku, is then carried out in next step；

S804：Judge whether electric leakage mark LDFlag=1 is true, if so, S808 is thened follow the steps, if it is not, then carrying out In next step；

S805：Judge ILD>ILDset0&&Ilnrms*Ku<Whether 0.1*Imax is true, if so, S807 is thened follow the steps, If it is not, then carrying out in next step；

S806：Judge ILD>ILDset0+0.05*(Ilnrms*Ku-0.1*Imax)&&Ilnrms*Ku>0.1*Imax is No establishment if it is not, then executing electric leakage counter LDCou=0, and executes step S808 if so, carrying out in next step；

S807：Judge electric leakage counter LDCou>Whether 0.02s is true, if so, electric leakage mark LDFlag=1 is executed, It controls S1ctr formula electronic switches S1 to disconnect, cut-out power supply, control LDctr control electric leakages indicator light LD_LED is lighted, while OLED Display electric leakage information and leakage current, and carry out in next step；If it is not, then directly carrying out in next step；

S808：Judge whether electric voltage exception mark VERFlag=1 is true, if so, terminating logic, if it is not, then carrying out In next step；

S809：Judge Ulnrms<0.80Ue or Ulnrms>Whether 1.15Ue (Ue=220V) is true, if so, carrying out down One step if it is not, then executing electric voltage exception counter VERCou=0, and terminates logic；

S810：Judge electric voltage exception counter VERCou>Whether 0.3s is true, if so, executing electric voltage exception mark VERFlag=1, control S1ctr formula electronic switches S1 are disconnected, and cut-out power supply, OLED shows information of voltage, and terminates logic, if It is not then directly to terminate logic.

Fig. 9 shows the Processing Algorithm and logic of earth leakage protective and electric voltage exception protection.Earth leakage protective adoption status identifies Maximum current Imax later provides two sections of protected mode, residual current protection operation curve is such as the braking threshold to float Shown in Figure 10.The action threshold of residual current protection can be automatically increased threshold after more than ILD0set with the increase of electric current, Can to avoid when electric current is larger due to the error of leakage current transformer and caused by erroneous judgement.

Figure 11 is please referred to, the WIFI communication in step S9 includes the following steps with data transmission remote control logic：

S901：WIFI communication starts with data transmission remote control logic；

S902：Judge whether WIFI has been established connection, if so, uploading APP data, that is, includes voltage Ulnrms, electric current Ilnrms, power P ln, generator rotor angle PFln, percent harmonic distortion THDi；If it is not, then terminating logic；

S903：Status attribute is read out by StIDNo, electricity consumption working condition attribute is uploaded into APP；

S904：Judge whether starting state study mark StduyFlag=1 is true, if so, learning state is uploaded to APP, and carry out in next step, if it is not, then directly carrying out in next step；

S905：Judge whether state identification mark StSearchFlag=1 is true, if so, identification state is uploaded to APP, and carry out in next step, if it is not, then directly carrying out in next step；

S906：Judge whether overload mark GZFlag=1 is true, if so, overload messages are uploaded to APP, and carries out In next step, if it is not, then directly carrying out in next step；

S907：Judge whether short circuit mark DLFlag=1 is true, if so, short circuit information is uploaded to APP, and carries out In next step, if it is not, then directly carrying out in next step；

S908：Judge whether electric leakage mark LDFlag=1 is true, if so, electric leakage information is uploaded to APP, and carries out In next step, if it is not, then directly carrying out in next step；

S909：Judge whether electric voltage exception mark VERFlag=1 is true, if so, electric voltage exception information is uploaded to APP, and carry out in next step, if it is not, then directly carrying out in next step；

S910：Judge whether APP resets fault message, if so, executing overload mark GZFlag=0, short circuit mark DLFlag=0, electric leakage mark LDFlag=0, electric voltage exception mark VERFlag=0, and carry out in next step, if it is not, then directly It carries out in next step；

S911：Judge whether the long-range power off command of APP is assigned, if so, control S1ctr formula electronic switches S1 is disconnected, cuts Cut-off electricity, OLED shows " long-range power-off ", and carries out in next step, if it is not, then directly carrying out in next step；

S912：Judge whether the long-range power-on commands of APP are assigned, if so, control S1ctr formula electronic switches S1 is closed, makes Power supply power supply, OLED shows " long-range to be powered ", and terminates logic, if it is not, then directly terminating logic.

Figure 11 is the WIFI communication and data transmission remote control logic of the present embodiment.The logic is established with WIFI network After communication connection, can the data of measurement be automatically uploaded to APP, electric current, the electricity of current power equipment can be monitored in APP The measurement data such as pressure, power, generator rotor angle and irregularity of wave form, while if short-circuit protection, overload protection, earth leakage protective and electricity When the normal protection act of reduce off-flavor, APP can will be sent in action message.APP may be implemented long-range action message and reset, long-range reality Now the control of power supply (being powered, power-off) is operated.

The advantageous effect of the present embodiment Intelligent single-phase electricity consumption identification protecting controller and its control method is：

1) multiple features parameter is used to identify electrical equipment, and according to the short circuit of the feature adjust automatically of electrical equipment, overload with And earth leakage protective action threshold, realize adaptive guard；

2) it uses multi-parameter state to learn and record, and accurately identifying and distinguishing to electrical equipment is realized by identification algorithm Know；

3) it by WIFI communication, is sent by the state parameter data of electrical equipment, on protection act information realization is real-time, and can To realize long-range control electricity consumption break-make；

4) it is not necessarily to increase more sensors, it is only necessary to search by the study and state identification of multiple electric characteristic parameters Algorithm is sought, electrical equipment state and feature can be accurately recognized；

5) the state feature of electrical equipment is utilized automatically to adjust the parameter of overload protection, short-circuit protection and residual current protection Threshold, without the setting thought；

6) by WIFI communication, the electric parameter of electrical equipment can be monitored in cell phone application, realize that long-range power supply is logical Disconnected control.

Above-described is only some embodiments of the utility model.For those of ordinary skill in the art, Without departing from the concept of the present invention, various modifications and improvements can be made, these belong to this practicality Novel protection domain.

Claims (4)

1. a kind of Intelligent single-phase electricity consumption identification protecting controller, it is characterised in that：It includes the Anti-surging guarantor for accessing external power supply Protect module, current-voltage measurement and handover module, electric protection switch module, microprocessor and the peripheral circuit mould that connection loads Block, the microprocessor are connect with the current-voltage measurement and handover module, the electric protection switch modular telecommunications number, institute It includes that the range being arranged on the surging prevention module output circuit gradually increases to state current-voltage measurement and handover module Several current transformers, connect with the surging prevention module output end by voltage changer measurement chip, setting In the leakage current sensor of the current transformer output end, each current transformer passes through relay switch and institute respectively State microprocessor electrical connection.

2. Intelligent single-phase electricity consumption identification protecting controller as described in claim 1, it is characterised in that：The voltage changer will AC220V, which is transformed into the microprocessor, can handle the AC signal of identification, which enters the measurement chip all the way In, another way enters in the ADC conversion circuits of the microprocessor.

3. Intelligent single-phase electricity consumption identification protecting controller as described in claim 1, it is characterised in that：The peripheral circuit module Include WIFI circuits, memory, the OLED being electrically connected with the microprocessor show and push-button unit and overload instruction, it is short Road indicates and electric leakage instruction.

4. Intelligent single-phase electricity consumption identification protecting controller as described in claim 1, it is characterised in that：The current transformer Quantity is three.