The loop-network switch cabinet intelligence controlling device
Technical field
The utility model relates to a kind of loop-network switch cabinet intelligent control technology, specifically, is a kind of application distribution 6~20kV cable power supply Based Intelligent Control loop network system.
Background technology
The intelligent grid construction is carried out in electric power system at present comprehensively, and full electric network is carried out Based Intelligent Control, intelligent management, intellectual analysis.The distribution intellectuality has only just begun starting, because a variety of causes fails to be generalizable, and for distribution supply intelligent Research on Control, also is the intelligentized popularization and application part of distribution always comprehensively, be primarily aimed at distribution transformer and on-load switch and carry out Based Intelligent Control, intelligent management.
Distribution power supply looped network switch cubicle intelligent control technology research and construction will play very big promotion to the power distribution system equipment safe operation, in the power distribution system equipment of operation, owing to can not monitor in real time, be out of order basically at present, be overhauled by user notification; Power supply quality is low, and device damage rate height if can be popularized in an all-round way and use distribution power supply looped network switch cubicle intelligent control technology, can play crucial effects to the development of distribution system intelligent control technology.
Summary of the invention
The purpose of this utility model is to realize by following technical scheme:
The loop-network switch cabinet intelligence controlling device comprises the signal data acquisition circuit, and signal data calculates decision circuitry, equipment operation circuit, wireless alarming emissioning circuit, wireless receiving circuit; Described signal data acquisition circuit has three terminations, is respectively A, B, C, and described signal data calculates decision circuitry output two terminations, is respectively S, X, and described wireless receiving circuit output has two terminations, is respectively N, G;
Wherein, described signal data acquisition circuit, collect the signal data end A from the loop-network switch cabinet electric power system and connect described signal data calculating decision circuitry, termination B connects described wireless alarming emissioning circuit, described signal data calculating decision circuitry output termination S connects described equipment operation circuit, termination X connects described wireless alarming emissioning circuit, described equipment operation circuit output connects described wireless alarming emissioning circuit, described wireless receiving circuit output termination N connects described equipment operation circuit, and output termination G connects the termination C by described signal data acquisition circuit.
Described signal data acquisition circuit comprises the cable temperature signal acquisition circuit, power supply voltage signal Acquisition Circuit, power current signal Acquisition Circuit; Described cable temperature signal acquisition circuit, power supply voltage signal Acquisition Circuit, power current signal Acquisition Circuit output end A connect signal data calculating decision circuitry, termination B connects described wireless alarming emissioning circuit;
Wherein, described cable temperature signal acquisition circuit, be that the detector unit digital temperature sensor is connected in a certain position of described cable end, gather the cable temperature data-signal, be connected in signal data and calculate decision circuitry, wireless alarming emissioning circuit from detector unit;
Described power supply voltage signal Acquisition Circuit is that L1, L2, L3 three-phase mains voltage are exported the voltage signal that is fit to after the resistance step-down of voltage transformer transformation and certain value, is connected to signal data and calculates decision circuitry, wireless alarming emissioning circuit;
Described power current signal Acquisition Circuit is that L1, L2, L3 three phase mains electric current are exported the current signal that is fit to requirement after current transformer and load resistance conversion, inserts signal data and calculates decision circuitry, wireless alarming emissioning circuit.
Described signal data calculates decision circuitry and comprises the A/D translation circuit, calculates decision circuitry, executive component; Described A/D translation circuit input is connected with described signal data acquisition circuit output end head A, and the output of A/D translation circuit connects described data computation decision circuitry, and the output of data computation decision circuitry connects described executive component; Described executive component output has two terminations, is respectively S, X, and the S termination connects described equipment operation circuit, and the X termination connects described wireless alarming emissioning circuit.
Described equipment operation circuit comprises the contacting controling circuit of mains switch 1 motor drive mechanism, the sub-gate control circuit of mains switch 1 motor drive mechanism, the sub-gate control circuit of the contacting controling circuit of mains switch 2 motor drive mechanisms, mains switch 2 motor drive mechanisms; The equipment operation circuit input signal calculates decision circuitry output termination S, wireless receiving circuit output termination N from signal data respectively, and operation of equipment is carried out back equipment state signal output and connected wireless alarming emissioning circuit;
Wherein, described mains switch 1 contacting controling circuit is meant the mains switch 1 motor drive mechanism closing circuit of described operation;
Described mains switch 1 sub-gate control circuit is meant the mains switch 1 motor drive mechanism sub-gate circuit of described operation;
Described mains switch 2 contacting controling circuits are meant the mains switch 2 motor drive mechanism closing circuits of described operation.
Described mains switch 2 sub-gate control circuits are meant the mains switch 2 motor drive mechanism sub-gate circuits of described operation.
Described wireless alarming emissioning circuit comprises signal input circuit, coding circuit, radiating circuit; Described signal input circuit is connected with described signal data acquisition circuit, data computation decision circuitry, equipment operation circuit respectively, and described signal input circuit output connects described coding circuit, and coding circuit connects described radiating circuit;
Wherein, described signal input circuit first K switch 1 connects mains switch 1 closing position signal, second switch K2 connects mains switch 1 separating brake position signalling, the 3rd K switch 3 connects mains switch 2 closing position signals, the 4th K switch 4 connects mains switch 2 separating brake position signallings, the 5th K switch 5 connects the cable temperature signal, and the 6th K switch 6 connects power supply voltage signal, and minion is closed K7 and connect power current signal.
Described 6~20kV loop-network switch cabinet intelligence controlling device, wireless receiving circuit comprises signal receiving circuit, decoding circuit, executive circuit; Described signal receiving circuit connects described decoding circuit, decoding circuit connects described executive circuit, executive circuit output has 7 terminations, be respectively the first termination N1, the second termination N2, the 3rd termination N3, the 4th termination N4, five terminal head G1, the 6th termination G2, the 7th termination G3, the described first termination N1, the second termination N2, the 3rd termination N3, the 4th termination N4 connect described equipment operation circuit, described five terminal head G1, the 6th termination G2, the 7th termination G3 connection signal data acquisition circuit;
Wherein, the described first termination N1 connects the contacting controling circuit of mains switch 1 motor drive mechanism, the sub-gate control circuit that the second termination N2 connects mains switch 1 motor drive mechanism, and the 3rd termination N3 connects the contacting controling circuit of mains switch 2 motor drive mechanisms, the sub-gate control circuit that the 4th termination N4 connects mains switch 2 motor drive mechanisms; Described five terminal head G1 stube cable temperature signal collection circuit, the 6th end G2 connects the voltage signal acquisition circuit, and the 7th termination G3 connects the current signal Acquisition Circuit.
This utility model loop-network switch cabinet intelligence controlling device, utilize advanced computer technology, monitoring technology, control technology, the communication technology, thus a kind of loop-network switch cabinet Long-distance Control, real-time status Data Detection, Intellectualized monitoring device that is used for distribution system developed.The relative prior art of the present invention has outstanding substantive distinguishing features and obvious improvement, specifically, this loop-network switch cabinet intelligence controlling device technological progress, reasonable in design, desirable realization loop-network switch cabinet supply intelligent control, intelligent management is for development network distribution system automation control, will play positive facilitation, the concrete advantage of this loop-network switch cabinet intelligence controlling device:
1, this loop-network switch cabinet intelligence controlling device monitoring power supply power supply safety ruuning situation at any time has defencive function, and automatics, but according to setting the automatic switching power supply, improves power supply reliability and fail safe.
2, this loop-network switch cabinet intelligence controlling device is monitored power supply running technology data at any time, can see supply voltage, electric current at any time, reach cable temperature by remote measurement, remote signalling.
3, this loop-network switch cabinet intelligence controlling device has remote control operating power switch, according to device context running status needs switching at any time, can carry out the remote control operation, operating personnel are less than device context, shorten the operating equipment time, reduce the loss that do not have.
Description of drawings
Fig. 1 is that loop-network switch cabinet intelligence controlling device described in the utility model is formed block diagram;
Fig. 2 is a signal data acquisition circuit block diagram described in the utility model;
Fig. 3 is that signal data described in the utility model calculates the decision circuitry block diagram;
Fig. 4 is an equipment operation circuit block diagram described in the utility model;
Fig. 5 is that wireless alarming emissioning circuit described in the utility model is formed block diagram;
Fig. 6 is a wireless receiving circuit block diagram described in the utility model;
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, form block diagram for loop-network switch cabinet intelligence controlling device described in the utility model, this device comprises signal data acquisition circuit 1, and signal data calculates decision circuitry 2, equipment operation circuit 3, wireless alarming emissioning circuit 4, wireless receiving circuit 5; Described signal data acquisition circuit has three terminations, is respectively A, B, C, and described signal data calculates decision circuitry output two terminations, is respectively S, X, and described wireless receiving circuit output has two terminations, is respectively N, G;
Wherein, described signal data acquisition circuit, collect signal data A termination from the loop-network switch cabinet electric power system and connect described signal data calculating decision circuitry, the B termination connects described wireless alarming emissioning circuit, described signal data calculating decision circuitry output termination S connects described equipment operation circuit, the X termination connects described wireless alarming emissioning circuit, described equipment operation circuit output connects described wireless alarming emissioning circuit, described wireless receiving circuit output termination N connects described equipment operation circuit, and output termination G connects the termination C of described signal data acquisition circuit.
Described loop-network switch cabinet intelligence controlling device has on-site manual, automatic, remote control operating function.The signal data acquisition circuit collects the real-time status data-signal from power supply; be transferred to data computation respectively and judge the radio alarming circuit; various signal datas compare by data computation judgment processing circuit; judge the system equipment state; if device fails starts the protection action; signal is transferred to equipment operation circuit and carries out this mains switch tripping operation; automatically drop into simultaneously another mains switch; and signal transmitted wireless alarming emissioning circuit, equipment state is changed the back situation inform the electrician.
When equipment need change state, but an electrician distant place operate by wireless receiving circuit, equipment operation circuit remote control, need not arrive device context.
When the electrician need know system power supply field apparatus operational factor, as supply voltage, electric current, cable temperature can directly access the field apparatus operational factor and check by wireless receiving circuit, signal data acquisition circuit, a radio alarming circuit distant place.
Fig. 2 is a data-signal Acquisition Circuit block diagram described in the utility model, and the signal data acquisition circuit comprises described cable temperature signal acquisition circuit 2E, power supply voltage signal Acquisition Circuit 2F, power current signal Acquisition Circuit 2G.Data-signal Acquisition Circuit end A connects signal data calculating decision circuitry, termination B connects described wireless alarming emissioning circuit;
Described cable temperature signal acquisition circuit is that the detector unit digital temperature sensor is connected in a certain position of described cable end, gathers the cable temperature data from detector unit, is connected in signal data and calculates decision circuitry; When the collecting temperature data relatively exceed setting by calculating, send alarm signal.When the electrician normally makes an inspection tour, but the cable temperature value is checked in a distant place.
Described voltage signal acquisition circuit, be with L1, L2, L3 three-phase mains voltage after the resistance step-down of voltage transformer and certain value, the voltage signal output that be fit to require is connected to signal data calculating decision circuitry; When system parameters changes, calculated overvoltage, under voltage by microcomputer, just send overvoltage, under voltage alarm signal, or tripping operation.When the electrician normally makes an inspection tour, but supply voltage value is checked in a distant place.
Described current signal Acquisition Circuit is that L1, L2, L3 three phase mains electric current are exported the current signal that is fit to requirement through current transformer and load resistance, and output inserts signal data calculating decision circuitry; When system parameters changes, calculate the super setting of overcurrent parameter by microcomputer, send the overcurrent alarm signal, or tripping operation.When the electrician normally makes an inspection tour, but the source current value is checked in a distant place.
Fig. 3 is that signal data described in the utility model calculates the decision circuitry block diagram, and signal data calculates decision circuitry and comprises: A/D translation circuit 31, calculating decision circuitry 32, executive component 33; Described executive component output has two terminations, is respectively S, X, and the S termination connects described equipment operation circuit, and the X termination connects described wireless alarming emissioning circuit.
Described A/D translation circuit 31 inputs connect described signal data acquisition circuit output end head A, the output of A/D translation circuit connects described calculating decision circuitry 32, calculate decision circuitry and connect described executive component 33, executive component output S termination connects described equipment operation circuit, and the X termination connects described fault handling method circuit, wireless alarming emissioning circuit.
After described data computation decision circuitry obtained various signal datas from signal acquisition circuit, signal data carried out A/D conversion input and calculates decision circuitry, calculates comparison, and comparative result is exported to executive component, carries out fling-cut equipment or warning.
Fig. 4 is an equipment operation circuit block diagram described in the utility model, the sub-gate control circuit 42 of the contacting controling circuit 41 of equipment operation circuit mains switch 1 motor drive mechanism, mains switch 1 motor drive mechanism, the sub-gate control circuit 44 of the contacting controling circuit 43 of mains switch 2 motor drive mechanisms, mains switch 2 motor drive mechanisms.
The operation of equipment signal calculates decision circuitry output termination S, wireless receiving circuit output termination N from signal data respectively, and after operation of equipment was carried out, after equipment state changed, signal output connected wireless alarming emissioning circuit;
Loop-network switch cabinet has two mains switches, and several go out wiretap, switch 1 control one road power supply, switch 2 controls one road power supply.Described mains switch 1 minute, contacting controling circuit are meant mains switch 1 motor drive mechanism branch, the closing circuit of described operation; After mains switch obtained branch, switching signal, mains switch 1 divided automatically, closing operation, reported to the police after mains switch 1 state changes and informed.
Described mains switch 2 minutes, contacting controling circuit are meant mains switch 2 motor drive mechanism branches, the closing circuit of described operation; After mains switch 2 obtained branch, switching signal, mains switch 2 divided automatically, closing operation, reported to the police after mains switch 2 states change and informed.
Fig. 5 is that wireless alarming emissioning circuit described in the utility model is formed block diagram, and wireless alarming emissioning circuit comprises signal input circuit 51, coding circuit 52, radiating circuit 53; Described signal input circuit 51 inputs are connected with described data computation decision circuitry, equipment operation circuit, signal data acquisition circuit respectively, described signal input circuit 51 outputs connect described coding circuit 52, and coding circuit connects described radiating circuit 53;
Described signal input circuit first K switch 1 connects mains switch 1 closing position signal, second switch K2 and connects that mains switch 1 separating brake position signalling, the 3rd K switch 3 connect mains switch 2 closing position signals, the 4th K switch 4 connects mains switch 2 separating brake position signallings, the 5th K switch 5 connects the cable temperature signal, and the 6th K switch 6 connects power supply voltage signal, minion is closed K7 and connect power current signal.
Signal when obtaining after equipment state changes is delivered to signal input circuit immediately, and signal is encoded is transmitted to operator on duty's warning.
Fig. 6 is a wireless receiving circuit block diagram described in the utility model, and wireless receiving circuit comprises signal receiving circuit 61, decoding circuit 62, executive circuit 63; Described signal receiving circuit 61 connects described decoding circuit 62, and decoding circuit connects described executive circuit 63, and executive circuit output connects described equipment operation circuit, signal data acquisition circuit respectively; The output of described signal receiving circuit has 7 the tunnel, be respectively the first termination N1, the second termination N2, the 3rd termination N3, the 4th termination N4, five terminal head G1, the 6th termination G2, the 7th termination G3, the contacting controling circuit of first termination N1 mains switch 1 motor drive mechanism, the sub-gate control circuit of second termination N2 mains switch 1 motor drive mechanism, the contacting controling circuit of the 3rd termination N3 mains switch 2 motor drive mechanisms, the sub-gate control circuit of the 4th termination N4 mains switch 2 motor drive mechanisms, five terminal head G1 cable temperature signal acquisition circuit, the 6th termination G2 voltage signal acquisition circuit, the 7th termination G3 current signal Acquisition Circuit.
When personnel on duty need carry out a distant place when in time operating to system equipment, can finish by wireless receiving circuit, can shorten a lot of times like this, and improve security reliability.
When personnel on duty need normally make an inspection tour system equipment, but source current value, magnitude of voltage, cable temperature value are checked in a distant place.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.