CN103701141A - Novel multifunctional coding switch - Google Patents
Novel multifunctional coding switch Download PDFInfo
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- CN103701141A CN103701141A CN201410008838.5A CN201410008838A CN103701141A CN 103701141 A CN103701141 A CN 103701141A CN 201410008838 A CN201410008838 A CN 201410008838A CN 103701141 A CN103701141 A CN 103701141A
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- latching relay
- magnetic latching
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- control mcu
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses a novel multifunctional coding switch, which comprises a main control MCU (Micro Control Unit), a magnetic latching relay, a standby magnetic latching relay, a working power supply module, a data memory, a temperature acquisition module, an LED (Light Emitting Diode) indicator lamp display module, a 485 communication module, an alternating-current acquisition module, a current transformer, a voltage transformer and switch driving circuits. The novel multifunctional coding switch is characterized in that the working power supply module, the data memory, the temperature acquisition module, the LED indicator lamp display module and the 485 communication module are respectively connected with the main control MCU, the main control MCU is connected with the magnetic latching relay through one switch driving circuit, the main control MCU is connected with the standby magnetic latching relay through the other switch driving circuit, and the main control MCU is respectively connected with the current transformer and the voltage transformer through the alternating-current acquisition module. By quickly calculating zero-cross switching time points through a single-chip microcomputer, the zero-cross switching of capacitors is guaranteed to be controlled by the magnetic latching relay, and the problem that a thyristor is apt to damage and burn out is solved.
Description
Technical field
The present invention relates to a kind of switch, relate in particular to a kind of novel multifunctional encoder switch.
Background technology
In power industry mesolow the complete sets of equipment, the fling-cut switch of capacitor is combination switch, because combination switch adopts controllable silicon and magnetic latching relay and connects, realize voltage zero-cross conducting and current over-zero and cut off, make combination switch there is reverse-blocking tetrode thyristor operating passing zero in the moment switching on and off.Its implementation is: during input, be in the first zero cross fired of voltage zero-cross moment controllable silicon, and then by magnetic latching relay adhesive conducting; And when excision is first magnetic latching relay to be disconnected, controllable silicon delay zero-crossing disconnects, thereby realizes current over-zero excision.Therefore combination switch is quite high to the electric property of magnetic latching relay and technological requirement.And existing magnetic latching relay on the market also fails to reach corresponding requirement, because erosion phenomenon is inhaled in the low easy appearance of magnetic latching relay contact capacity, the mechanical structure of magnetic latching relay has determined the unsteadiness of its action simultaneously; Controllable silicon is to belong to power type semiconductor element, and the electric current and voltage conditional request during to use is harsh, once electric current and voltage, occurs that larger fluctuation causes controllable silicon to damage or burns phenomenon; Therefore cause existing combination switch on the market also to exist the inadequate natural endowment of application aspect.The present invention be directed to the inadequate natural endowment that controllable silicon and magnetic latching relay exist aspect low-voltage complete application of installation and a kind of up-to-date scientific and technological achievement of meticulously developing.
Summary of the invention
The object of the invention is to, problem for above-mentioned discovery, a kind of novel multifunctional encoder switch is provided, realized with single-chip microcomputer and calculated fast operating passing zero moment point, guaranteed that magnetic latching relay carrys out the operating passing zero of control capacitor, replace traditional employing controllable silicon and magnetic latching relay and connect as operating passing zero, having solved controllable silicon and easily occurred the phenomenon of damaging and burning.It can monitor the input current value of power capacitor, and the utilance of capacitor is guaranteed in the capacitance loss of real-time report capacitor.
The present invention also can Real-time Collection capacitor temperature value during operation, the in the situation that of temperature over-range, exit by force capacitor and drop into; Again can the current value of Real-time Collection when capacitor drops into, when current value exceeds 2 times of electric capacity rated current, exit by force electric capacity and drop into; Can also be when excision electric capacity, the current value of each switch passage of Real-Time Monitoring, judging under the malfunction of magnetic latching relay adhesive, disconnect by force standby magnetic latching relay, avoid capacitor for a long time in input state, a kind of high security that has, the novel multifunctional encoder switch of high reliability.
Object of the present invention can be achieved like this, described novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, standby magnetic latching relay, working power module, data storage, temperature collect module, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage is connected with main control MCU respectively with temperature collect module, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
Object of the present invention can be achieved like this, described novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, standby magnetic latching relay, working power module, data storage, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
Object of the present invention can be achieved like this, described novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, working power module, data storage, temperature collect module, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage, temperature collect module is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
Object of the present invention can be achieved like this, described novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, standby magnetic latching relay, working power module, data storage, temperature collect module, LED light display module, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage, temperature collect module, LED light display module is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
The operating passing zero method of novel multifunctional encoder switch of the present invention, comprise the steps: 1) by the A line of three-phase and four-line, B line, C line, when N line and capacitor access respectively on the corresponding binding post of the arbitrary described novel multifunctional encoder switch of claim 1-4, exchange acquisition module Real-time Collection line voltage distribution, electric current and capacitor service data signal, by sending into electric energy computation chip after its signal processing circuit conditioning, main control MCU is controlled electric energy computation chip by SPI communication bus this signal is done accurate analog digital conversion and calculated, to obtain phase voltage, line voltage, capacitance voltage, drop into current information, pass through again SPI communication bus by phase voltage, line voltage, capacitance voltage, drop into current information and regularly send main control MCU to, main control MCU is sent logic control signal calculating suitable Switching Strategy by I/O mouth, through switch driving circuit, be converted to and there is the control signal that drives magnetic latching relay Motor ability, drive the magnetic latching relay break-make of respective channel, 2) disconnection and the closing stroke time of each magnetic latching relay will accurately be calculated by main control MCU, and be stored in data storage, when interchange acquisition module detects voltage over zero moment Ta and needs closed magnetic latching relay, the constant △ t of main control MCU calling data memory stores
1with variable T
1as the calculating parameter of closed magnetic latching relay, the moment point calculating while voltage zero-cross input now being detected is T
1=Ta+10-△ t
1, in formula: magnetic latching relay closing stroke time △ t
1=t
2-t
1, when main control MCU, send and control close command driving switch drive circuit closed magnetic latching relay, in this process, data storage storage main control MCU is sent the moment point t that controls close command
1, data storage storage magnetic latching relay closing moment point t
2, the moment point that Ta is the voltage zero-cross that detects first, main control MCU will be controlled at T
1the close command switch driving circuit that sends magnetic latching relay in the time of constantly carries out closed action, when interchange acquisition module detects current zero-crossing point moment Tb and need to disconnect magnetic latching relay, the constant △ t of main control MCU calling data memory stores
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, the moment point calculating while voltage zero-cross disconnection now being detected is T
2=Tb+10-△ t
2, in formula: the journey time △ t that magnetic latching relay disconnects
2=t
4-t
3, when main control MCU, send and control open command driving switch drive circuit disconnection magnetic latching relay, in this process, data storage storage main control MCU is sent the moment point t that controls open command
3, data storage storage magnetic latching relay disconnects moment point t
4, the moment point that Tb is the current over-zero that detects first, main control MCU will be controlled at T
2the open command switch driving circuit that sends magnetic latching relay in the time of constantly disconnects action.
Described main control MCU is sent control signal according to the actual situation closed and that disconnect of magnetic latching relay by I/O mouth, controls the show state of LED light through LED light display module circuit, comes indicating operating status and capacitor switching state.
Described interchange acquisition module has connected after 1 ~ n current transformer and 1 ~ n voltage transformer, phase voltage, the line voltage of 1 ~ n current transformer and 1 ~ n voltage transformer Real-time Collection circuit, the capacitance voltage of capacitor and switching current information feed back to main control MCU, these information by gathering, calculate the loss β=Q after capacitor actual motion
c/ Q
c1, in formula: Q
cand Q
c1calculate in the steps below, when being U through exchanging the capacitance voltage of acquisition module collection, line voltage is U
aB, U
bC, U
cA, capacitor switching electric current I
aB, I
bC, I
cAtime, the input capacity Q of calculating electric capacity reality
c=U
aB* I
aB+ U
bC* I
bC+ U
cA* I
cA, input amount Q when loss does not appear in capacitor
c1=Qe * (U/Ue)
2, wherein: be the capacitance voltage gathering, Ue is the rated voltage of power capacitor.
When the present invention is provided with standby magnetic latching relay, described standby magnetic latching relay is in normally off, and the switching of capacitor is to realize by controlling the break-make of magnetic latching relay; 1) when the temperature value of temperature collect module Real-time Collection capacitor exceeds preset parameter, main control MCU analysis is sent logic control signal by I/O mouth more afterwards, through switch driving circuit, be converted to and have in the control signal that drives the standby magnetic latching relay Motor ability of 1 ~ n, disconnect by force the standby magnetic latching relay of 1 ~ n, prevent capacitor excess Temperature, the fault such as occur explosion or burn; 2) when when the capacitor of the 1 ~ n current transformer Real-time Collection in exchanging acquisition module drops into, current value exceeds 2 times of capacitor rated current, main control MCU analysis is sent logic control signal by I/O mouth more afterwards, through switch driving circuit, be converted to and have in the control signal that drives the standby magnetic latching relay Motor ability of 1 ~ n, disconnect by force the standby magnetic latching relay of 1 ~ n, the action message of protection 1 ~ n magnetic latching relay; 3) when equipment excision capacitor, exchange the current value of each switch passage of 1 ~ n current transformer Real-Time Monitoring in acquisition module, if while also there is the current value while dropping into, judge that the fault of adhesive appears in 1 ~ n magnetic latching relay, now main control MCU is sent logic control signal by I/O mouth, through switch driving circuit, be converted to and have in the control signal that drives the standby magnetic latching relay Motor ability of 1 ~ n, disconnect by force the standby magnetic latching relay of 1 ~ n and avoid capacitor for a long time in input state.
In structure of the present invention, also comprise a plurality of (1 ~ n) magnetic latching relay, a plurality of (1 ~ n) standby magnetic latching relay, switch driving circuit, working power module, data storage, temperature collect module, LED light display module, 485 communication modules, exchanged acquisition module, a plurality of (1 ~ n) current transformer, a plurality of (1 ~ n) voltage transformer and switch driving circuit.Described a plurality of (1 ~ n) magnetic latching relay is as the fling-cut switch of capacitor under drive circuit is controlled, described a plurality of (1 ~ n) standby magnetic latching relay is to use as protection switch, when electric capacity excises, the current value of each switch passage of Real-Time Monitoring, judging under the malfunction of the magnetic latching relay adhesive of using for switching, disconnect by force standby magnetic latching relay, avoid capacitor for a long time in input state, protection equipment reliability service, described working power module is that alternating current 220V is inputted as power supply, converts multi-channel DC voltage to supply with a circuit module use through power module, described data storage be for to various in real time and history data store, described temperature collect module is the temperature value that gathers capacitor self, the in the situation that of temperature over-range, exits by force electric capacity and drops into, whether described LED light display module is to comprise working power and switching signal lamp, can observe novel multifunctional encoder switch of the present invention by indicator light and normally work and capacitor switching situation, 485 described communication modules are for the data communication with external control appliance and information exchange, described interchange acquisition module comprises electric energy computation chip and signal processing circuit, electric energy computation chip adopts high-precision A/D chip, high-precision A/D chip is as electric current and voltage metering use, the effect of signal processing circuit is that the electric current and voltage information of input is nursed one's health into the signal that can do accurate analog digital conversion and calculate in high-precision A/D chip, regularly send result to main control MCU again, mainly to gather electric current, phase voltage, line voltage, condenser voltage, electric capacity drops into the data parameters such as electric current and is used for judging that voltage zero-cross drops into and current over-zero disconnects and condenser loss calculation of parameter, described a plurality of (1 ~ n) current transformer is the electric current when gathering electric capacity and drop into, and when current value exceeds 2 times of electric capacity rated current, exits by force electric capacity and drops into, and the electric current simultaneously dropping into also can be used as a parameter of calculable capacitor loss, described a plurality of (1 ~ n) voltage transformer is for gathering the parameters such as phase voltage, line voltage, condenser voltage, to can be used as the foundation of judgement voltage zero-cross and calculable capacitor loss.
advantage of the present invention:
When the present invention moves in normal power-up, main control MCU is when controlling first magnetic latching relay and carry out switching action, main control MCU can record accurately magnetic latching relay and send the real closed or moment point that disconnects of the moment point of closure or open command and magnetic latching relay, and calculates magnetic latching relay in closed journey time when disconnecting.Because the switching journey time of each magnetic latching relay is different, adopt computational methods of the present invention, can be according to the switching journey time of different magnetic latching relays, main control MCU is calculated and is sent in advance driving signal, so that magnetic latching relay can be at correct moment regular event.
Novel multifunctional encoder switch of the present invention, can pass through the temperature value of temperature collect module Real-time Collection capacitor, when the temperature value gathering exceeds preset parameter (parameter can arrange according to actual motion environment), standby magnetic latching relay in novel multifunctional encoder switch of the present invention disconnects by force, prevent capacitor excess Temperature, the fault such as cause capacitor to occur explosion or to burn.
Novel multifunctional encoder switch of the present invention; current value in the time of can dropping into by a plurality of (1 ~ n) current transformers and interchange acquisition module Real-time Collection capacitor; when current value exceeds 2 times of electric capacity rated current; standby magnetic latching relay in novel multifunctional encoder switch of the present invention disconnects by force; exit by force electric capacity and drop into, protection equipment reliability service.
Novel multifunctional encoder switch of the present invention, can be when excision electric capacity, the current value of each switch passage of Real-Time Monitoring, judging under the malfunction of magnetic latching relay adhesive, standby magnetic latching relay in novel multifunctional encoder switch of the present invention disconnects by force, avoids electric capacity for a long time in input state.
Accompanying drawing explanation
Fig. 1 is the structure chart of the novel multifunctional encoder switch of the embodiment of the present invention.
Fig. 1-1st, the schematic block circuit diagram that 485 communication modules are not installed in Fig. 1.
Fig. 1-2 does not install the schematic block circuit diagram of temperature collect module in Fig. 1.
Fig. 1-3rd, the schematic block circuit diagram that standby magnetic latching relay is not installed in Fig. 1.
Fig. 2 is voltage zero-cross closure and the travel-time curve figure of the novel multifunctional encoder switch of the embodiment of the present invention.
Fig. 3 is that the current over-zero of the novel multifunctional encoder switch of the embodiment of the present invention disconnects and travel-time curve figure.
Fig. 4 is the operation principle block diagram of the novel multifunctional encoder switch of the embodiment of the present invention.
Fig. 5 is the protective circuit operation principle block diagram of the novel multifunctional encoder switch of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, operation principle and the course of work of novel multifunctional encoder switch of the present invention are elaborated:
As shown in Figure 1, be the structure chart of the novel multifunctional encoder switch of embodiment of the present invention.Comprise main control MCU, a plurality of (can be 1 ~ n) magnetic latching relay, a plurality of (can be 1 ~ n) standby magnetic latching relay, working power module, data storage, temperature collect module, LED light display module, 485 communication modules, exchange acquisition module, a plurality of (can be 1 ~ n) current transformer, a plurality of (can be 1 ~ n) voltage transformer, switch driving circuit.N of the present invention is natural number.Described working power module, data storage, temperature collect module, LED light display module and 485 communication modules are connected with main control MCU respectively, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, and main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.When the present invention applies, as shown in Figure 5, standby magnetic latching relay is received A line, B line, C line, N line on the one hand, is connected on the other hand with magnetic latching relay, and magnetic latching relay is received on power capacitor.The following capacitor of the present invention refers to " power capacitor ".
1) main control MCU: adopt existing commercially available prod as single-chip microcomputer etc., complete transmission and controls and send control signal driving magnetic latching relay and carry out switching action, these calibration analytes and calculation procedure can be realized for those skilled in the art.
2) a plurality of (1 ~ n) magnetic latching relay: adopt existing commercially available prod, as the switching element of capacitor in power industry mesolow the complete sets of equipment.
3) a plurality of (1 ~ n) standby magnetic latching relay: adopt existing commercially available prod, serve as a kind of switch element, judging under the malfunction of magnetic latching relay adhesive, standby magnetic latching relay in novel multifunctional encoder switch of the present invention disconnects by force, those skilled in the art avoid the electric capacity for a long time in input state, for can realize.
4) working power module: alternating current 220V is inputted as power supply, through power module, convert multi-channel DC voltage to and supply with a circuit module use, wherein main control MCU, data storage, 485 communication module working powers are 3.3V direct voltage, exchanging acquisition module operating voltage is 5V, and fling-cut switch control module operating voltage is 12V.These working power modules can realize for those skilled in the art.
5) data storage: this module to various in real time and history data store, can adopt all kinds of storage mediums, be prior art.
6) temperature collect module: adopt commercially available pt100 platinum resistance, external be directly placed in capacitor surface fast response temperature change, described pt100 platinum resistance is existing commercially available prod.
7) LED light display module: comprise working power and switching signal lamp, operating state and capacitor switching state that the content that indicator light shows comprises novel multifunctional encoder switch of the present invention.
8) 485 communication modules: this module is that external control appliance is carried out to data communication and information exchange are prior art.
9) exchange acquisition module: comprise electric energy computation chip and signal processing circuit, electric energy computation chip adopts high-precision A/D chip, high-precision A/D chip is as electric current and voltage metering use, the effect of signal processing circuit is that the electric current and voltage information of input is nursed one's health into the signal that can do accurate analog digital conversion and calculate in high-precision A/D chip, those skilled in the art regularly send result to main control MCU again, for can realize.
10) a plurality of (1 ~ n) current transformer: adopt existing commercially available prod, the electric current while dropping into for gathering electric capacity, line current, phase current etc.
11) a plurality of (1 ~ n) voltage transformer: adopt existing commercially available prod, can be used as the foundation of judgement voltage zero-cross and calculable capacitor loss for gathering the parameters such as phase voltage, line voltage, condenser voltage.
12) switch driving circuit: this module is general switching circuit, when main control MCU is sent control signal instruction, through working power module, provide the direct voltage of 12V to supply with switching circuit and use, make switching circuit closed, these switching circuits can be realized for those skilled in the art.
As Figure 1-1, be that the schematic block circuit diagram of 485 communication modules is not installed in Fig. 1.The present invention can not install 485 communication modules, and now structure of the present invention does not just have 485 communication module functions, but the present invention can also realize object of the present invention, just can not pass through transmitted data on network.
As shown in Figure 1-2, be that the schematic block circuit diagram of temperature collect module is not installed in Fig. 1.The present invention can not install temperature collect module, now structure of the present invention does not just have temperature collect module function, but the present invention can also realize object of the present invention, just do not there is temperature alarming function and prevent capacitor excess Temperature, the fault such as occur explosion or burn.
As Figure 1-3, be that the schematic block circuit diagram of standby magnetic latching relay is not installed in Fig. 1.The present invention can uneasy equipment magnetic latching relay, now structure of the present invention does not just have standby magnetic latching relay function, but the present invention can also realize object of the present invention, just do not have and disconnect by force a plurality of (1 ~ n) standby magnetic latching relay, prevent capacitor excess Temperature, the function of the fault such as occur explosion or burn.
As shown in Figure 2 be voltage zero-cross closure and travel-time curve figure, the wherein t of the novel multifunctional encoder switch of the embodiment of the present invention
1the moment point of the close command of sending first for main control MCU, t
2for drive circuit of magnetic latching relay receives close command and the real closed moment point of magnetic latching relay, △ t
1journey time (ms of unit) for magnetic latching relay closure, the moment point that Ta is the voltage zero-cross that detects first, because cycle of power frequency AC is 20ms, in a power frequency period, supply voltage zero passage there will be 2 zero passages constantly, therefore the moment point (ms of unit) that Ta+10 is the voltage zero-cross that detects for the second time, T
1for voltage zero-cross moment point being detected for the second time, main control MCU is sent the moment point of the close command of magnetic latching relay.
As shown in Figure 3 be that the current over-zero of the novel multifunctional encoder switch of the embodiment of the present invention disconnects and travel-time curve figure, wherein t
3the moment point of the open command of sending first for main control MCU, t
4for drive circuit of magnetic latching relay receives open command and the real moment point disconnecting of magnetic latching relay, △ t
2journey time (ms of unit) for magnetic latching relay disconnection, the moment point that Tb is the current over-zero that detects first, because cycle of power frequency AC is 20ms, in a power frequency period, source current zero passage there will be 2 zero passages constantly, the moment point (ms of unit) that Tb+10 is the current over-zero that detects for the second time, T
2when current over-zero being detected for the second time, main control MCU is sent the moment point of the open command of magnetic latching relay.
Shown in Fig. 1, Fig. 2, Fig. 3, in order to calculate the journey time of magnetic latching relay closure, be △ t
1, the journey time that disconnects of magnetic latching relay is △ t
2, main control MCU sends the close command moment point T of magnetic latching relay
1and main control MCU is sent the moment point T of the open command of magnetic latching relay
2.If main control MCU is sent, control close command driving switch drive circuit closed magnetic latching relay, in this process, data storage storage main control MCU is sent the moment point t that controls close command
1, data storage storage magnetic latching relay closing moment point t
2.When data storage has been stored t
1and t
2after, the journey time of the magnetic latching relay closure that main control MCU calculates is △ t
1=t
2-t
1, the journey time △ t of the magnetic latching relay closure that now data storage continuation storage main control MCU calculates
1.When exchanging acquisition module, detect for the first time after voltage zero-cross moment point Ta, main control MCU starts to calculate the close command moment point T that sends magnetic latching relay
1=Ta+10-△ t
1, main control MCU is controlled at T
1the close command of sending magnetic latching relay in the time of constantly drives electrical apparatus driving circuit to carry out closed action, guarantees that magnetic latching relay is at this moment point operating passing zero of Ta+10.Data storage storage of constant △ t
1with variable T
1as the calculating parameter of closed magnetic latching relay, so that novel multifunctional encoder switch of the present invention uses while carrying out closed magnetic latching relay.If main control MCU is sent, control open command driving switch drive circuit disconnection magnetic latching relay, in this process, data storage storage main control MCU is sent the moment point t that controls open command
3, data storage storage magnetic latching relay disconnects moment point t
4.When data storage has been stored t
3and t
4after, the journey time that the magnetic latching relay that main control MCU calculates disconnects is △ t
2=t
4-t
3, the journey time △ t that the magnetic latching relay that now data storage continuation storage main control MCU calculates disconnects
2.When exchanging acquisition module, detect for the first time after current over-zero moment point Tb, main control MCU starts to calculate the open command moment point T that sends magnetic latching relay
2=Tb+10-△ t
2, main control MCU is controlled at T
2the open command of sending magnetic latching relay in the time of constantly drives electrical apparatus driving circuit to disconnect action, guarantees that magnetic latching relay is at this moment point operating passing zero of Tb+10.Data storage storage of constant △ t
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, so that novel multifunctional encoder switch of the present invention uses while disconnecting magnetic latching relay.
When the interchange acquisition module in novel multifunctional encoder switch of the present invention detects voltage over zero moment Ta and needs closed magnetic latching relay, the constant △ t of main control MCU calling data memory stores
1with variable T
1as the calculating parameter of closed magnetic latching relay, the moment point calculating while voltage zero-cross input now being detected is T
1=Ta+10-△ t
1, main control MCU will be controlled at T
1the close command of sending magnetic latching relay in the time of constantly drives electrical apparatus driving circuit to carry out closed action.When interchange acquisition module detects current zero-crossing point moment Tb and need to disconnect magnetic latching relay, the constant △ t of main control MCU calling data memory stores
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, the moment point calculating while voltage zero-cross disconnection now being detected is T
2=Tb+10-△ t
2.Main control MCU will be controlled at T
2the open command of sending magnetic latching relay in the time of constantly drives electrical apparatus driving circuit to disconnect action.
As shown in Figure 4, be the operation principle block diagram of the novel multifunctional encoder switch of embodiment of the present invention.Wherein A line, B line, C line, N line are connected to novel multifunctional encoder switch A, B, C, N port of the present invention by copper conductor respectively, working power module is inputted the alternating current 220V of collection as power supply, through power module, convert multi-channel DC voltage to and supply with a circuit module use, wherein main control MCU, data storage, 485 communication module working powers are 3.3V direct voltage, exchanging acquisition module working power is 5V direct voltage, and fling-cut switch control module working power is 12V direct voltage.
As shown in Figure 5; it is the protective circuit operation principle block diagram of the novel multifunctional encoder switch of embodiment of the present invention; for the reliable and secure operation of assurance equipment; in order to strengthen the useful life of power capacitor, novel multifunctional encoder switch of the present invention has increased a plurality of (1 ~ n) standby magnetic latching relay to be used as protection switch.When novel multifunctional encoder switch of the present invention is normally worked, a plurality of (1 ~ n) standby magnetic latching relay is in normally off, and the switching of capacitor is that the break-make of a plurality of by controlling (1 ~ n) magnetic latching relay realizes.When the temperature value of temperature collect module Real-time Collection capacitor exceeds preset parameter (parameter can arrange according to actual motion environment), main control MCU analysis is sent logic control signal by I/O mouth more afterwards, through switch driving circuit, be converted to and have in the control signal that drives a plurality of (1 ~ n) standby magnetic latching relay Motor ability, disconnect by force a plurality of (1 ~ n) standby magnetic latching relay, prevent capacitor excess Temperature, the fault such as occur explosion or burn.When the capacitor of a plurality of (1 ~ n) current transformer Real-time Collection in exchanging acquisition module drops into, current value exceeds 2 times of capacitor rated current; main control MCU analysis is sent logic control signal by I/O mouth more afterwards; through switch driving circuit, be converted to and have in the control signal that drives a plurality of (1 ~ n) standby magnetic latching relay Motor ability; disconnect by force a plurality of (1 ~ n) standby magnetic latching relay, protect the action message of a plurality of (1 ~ n) magnetic latching relay.When equipment excision electric capacity, exchange the current value of each switch passage of a plurality of (1 ~ n) current transformer Real-Time Monitoring in acquisition module, if while also there is the current value while dropping into, judge that the fault of adhesive appears in a plurality of (1 ~ n) magnetic latching relay, now main control MCU is sent logic control signal by I/O mouth, through switch driving circuit, be converted to and have in the control signal that drives a plurality of (1 ~ n) standby magnetic latching relay Motor ability, disconnect by force a plurality of (1 ~ n) standby magnetic latching relay and avoid capacitor for a long time in input state.Therefore by increasing a plurality of (1 ~ n) standby magnetic latching relay, be used as protection switch, can improve fail safe, the reliability of novel multifunctional encoder switch operation of the present invention.
In conjunction with Fig. 4, shown in Fig. 5, when A line, B line, C line, when N line and capacitor access respectively on the corresponding binding post of novel multifunctional encoder switch of the present invention, the interchange acquisition module Real-time Collection line voltage distribution in novel multifunctional encoder switch of the present invention, electric current and capacitor service data, by sending into electric energy computation chip after its signal processing circuit conditioning, main control MCU is controlled electric energy computation chip (data acquisition module chip block) by SPI communication bus this signal is done accurate analog digital conversion and calculated, to obtain phase voltage, line voltage, capacitance voltage, drop into the information such as electric current, then pass through SPI communication bus by phase voltage, line voltage, capacitance voltage, drop into the information such as electric current and regularly send main control MCU to, main control MCU is sent logic control signal calculating suitable Switching Strategy by I/O mouth, through switch driving circuit, be converted to and there is the control signal that drives magnetic latching relay Motor ability, drive the magnetic latching relay break-make of respective channel.Because the journey time of the closed and disconnected of each magnetic latching relay is different, in order to guarantee that magnetic latching relay is accurate in the action moment point of contact, novel multifunctional encoder switch of the present invention will accurately calculate disconnection and the closing stroke time of each magnetic latching relay by main control MCU, and is stored in data storage.When the interchange acquisition module of novel multifunctional encoder switch of the present invention detects voltage over zero moment Ta and needs closed magnetic latching relay, the constant △ t of main control MCU calling data memory stores
1with variable T
1as the calculating parameter of closed magnetic latching relay, the moment point calculating while voltage zero-cross input now being detected is T
1=Ta+10-△ t
1, main control MCU will be controlled at T
1the close command switch driving circuit that sends magnetic latching relay in the time of constantly carries out closed action.When interchange acquisition module detects current zero-crossing point moment Tb and need to disconnect magnetic latching relay, the constant △ t of main control MCU calling data memory stores
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, the moment point calculating while voltage zero-cross disconnection now being detected is T
2=Tb+10-△ t
2.Main control MCU will be controlled at T
2the open command switch driving circuit that sends magnetic latching relay in the time of constantly disconnects action.Main control MCU will be sent control signal by I/O mouth according to the actual situation closed and that disconnect of magnetic latching relay simultaneously, through LED light display module circuit, control the show state of LED light, indicate operating state and the capacitor switching state of novel multifunctional encoder switch of the present invention.The interchange acquisition module of novel multifunctional encoder switch of the present invention has connected a plurality of (1 ~ n) current transformers and a plurality of (1 ~ n) voltage transformer, phase voltage, line voltage that can Real-time Collection circuit, the information such as the capacitance voltage of capacitor and switching electric current feed back to main control MCU, by these information that gather, that can think calculates the loss after capacitor actual motion.If be U through exchanging the capacitance voltage of acquisition module collection, line voltage is U
aB, U
bC, U
cA, capacitor switching electric current I
aB, I
bC, I
cA, can calculate the input capacity Q of electric capacity reality
c=U
aB* I
aB+ U
bC* I
bC+ U
cA* I
cA.According to capacitor rated capacity, Qe can know, input amount Q when loss does not appear in capacitor
c1=Qe * (U/Ue)
2, (wherein U is the capacitance voltage gathering, and Ue is the rated voltage of power capacitor), can calculate loss factor β=Q like this
c/ Q
c1.Due to when condenser loss value reaches 1/3, the utilance of capacitor reduces, in the complete sets of equipment, utilize capacitor effect by way of compensation to decline, when condenser loss value reaches 2/3, the output current of capacitor strengthens, the caloric value of capacitor is high, and potential safety hazard easily appears in capacitor, therefore at the loss factor β of Detection capacitance device, has innovation and creation meaning.
Claims (8)
1. a novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, standby magnetic latching relay, working power module, data storage, temperature collect module, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage is connected with main control MCU respectively with temperature collect module, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
2. a novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, standby magnetic latching relay, working power module, data storage, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
3. a novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, working power module, data storage, temperature collect module, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage, temperature collect module and 485 communication modules are connected with main control MCU respectively, main control MCU connects magnetic latching relay by switch driving circuit, and main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
4. a novel multifunctional encoder switch, comprise main control MCU, magnetic latching relay, standby magnetic latching relay, working power module, data storage, temperature collect module, LED light display module, 485 communication modules, exchange acquisition module, current transformer, voltage transformer and switch driving circuit, it is characterized in that, described working power module, data storage, temperature collect module, LED light display module is connected with main control MCU respectively with 485 communication modules, main control MCU connects magnetic latching relay by a switch driving circuit, main control MCU connects standby magnetic latching relay by another switch driving circuit, main control MCU is connected with voltage transformer with current transformer respectively by exchanging acquisition module.
5. the operating passing zero method of the arbitrary described novel multifunctional encoder switch of claim 1-4, comprise the steps: 1) by the A line of three-phase and four-line, B line, C line, when N line and capacitor access respectively on the corresponding binding post of the arbitrary described novel multifunctional encoder switch of claim 1-4, exchange acquisition module Real-time Collection line voltage distribution, electric current and capacitor service data signal, by sending into electric energy computation chip after its signal processing circuit conditioning, main control MCU is controlled electric energy computation chip by SPI communication bus this signal is done accurate analog digital conversion and calculated, to obtain phase voltage, line voltage, capacitance voltage, drop into current information, pass through again SPI communication bus by phase voltage, line voltage, capacitance voltage, drop into current information and regularly send main control MCU to, main control MCU is sent logic control signal calculating suitable Switching Strategy by I/O mouth, through switch driving circuit, be converted to and there is the control signal that drives magnetic latching relay Motor ability, drive the magnetic latching relay break-make of respective channel, 2) disconnection and the closing stroke time of each magnetic latching relay will accurately be calculated by main control MCU, and be stored in data storage, when interchange acquisition module detects voltage over zero moment Ta and needs closed magnetic latching relay, the constant △ t of main control MCU calling data memory stores
1with variable T
1as the calculating parameter of closed magnetic latching relay, the moment point calculating while voltage zero-cross input now being detected is T
1=Ta+10-△ t
1, in formula: magnetic latching relay closing stroke time △ t
1=t
2-t
1, when main control MCU, send and control close command driving switch drive circuit closed magnetic latching relay, in this process, data storage storage main control MCU is sent the moment point t that controls close command
1, data storage storage magnetic latching relay closing moment point t
2, the moment point that Ta is the voltage zero-cross that detects first, main control MCU will be controlled at T
1the close command switch driving circuit that sends magnetic latching relay in the time of constantly carries out closed action, when interchange acquisition module detects current zero-crossing point moment Tb and need to disconnect magnetic latching relay, the constant △ t of main control MCU calling data memory stores
2with variable T
2as the calculating parameter that disconnects magnetic latching relay, the moment point calculating while voltage zero-cross disconnection now being detected is T
2=Tb+10-△ t
2, in formula: the journey time △ t that magnetic latching relay disconnects
2=t
4-t
3, when main control MCU, send and control open command driving switch drive circuit disconnection magnetic latching relay, in this process, data storage storage main control MCU is sent the moment point t that controls open command
3, data storage storage magnetic latching relay disconnects moment point t
4, the moment point that Tb is the current over-zero that detects first, main control MCU will be controlled at T
2the open command switch driving circuit that sends magnetic latching relay in the time of constantly disconnects action.
6. operating passing zero method according to claim 5, it is characterized in that, main control MCU is sent control signal according to the actual situation closed and that disconnect of magnetic latching relay by I/O mouth, the show state of controlling LED light through LED light display module circuit, comes indicating operating status and capacitor switching state.
7. according to the operating passing zero method described in claim 5 or 6, it is characterized in that, described interchange acquisition module has connected after 1 ~ n current transformer and 1 ~ n voltage transformer, phase voltage, the line voltage of 1 ~ n current transformer and 1 ~ n voltage transformer Real-time Collection circuit, the capacitance voltage of capacitor and switching current information feed back to main control MCU, these information by gathering, calculate the loss β=Q after capacitor actual motion
c/ Q
c1, in formula: Q
cand Q
c1calculate in the steps below, when being U through exchanging the capacitance voltage of acquisition module collection, line voltage is U
aB, U
bC, U
cA, capacitor switching electric current I
aB, I
bC, I
cAtime, the input capacity Q of calculating electric capacity reality
c=U
aB* I
aB+ U
bC* I
bC+ U
cA* I
cA, input amount Q when loss does not appear in capacitor
c1=Qe * (U/Ue)
2, wherein: be the capacitance voltage gathering, Ue is the rated voltage of power capacitor.
8. according to the operating passing zero method described in claim 5 or 6 or 7, it is characterized in that, when standby magnetic latching relay is installed, described standby magnetic latching relay is in normally off, and the switching of capacitor is to realize by controlling the break-make of magnetic latching relay; 1) when the temperature value of temperature collect module Real-time Collection capacitor exceeds preset parameter, main control MCU analysis is sent logic control signal by I/O mouth more afterwards, through switch driving circuit, be converted to and have in the control signal that drives the standby magnetic latching relay Motor ability of 1 ~ n, disconnect by force the standby magnetic latching relay of 1 ~ n, prevent capacitor excess Temperature, the fault such as occur explosion or burn; 2) when when the capacitor of the 1 ~ n current transformer Real-time Collection in exchanging acquisition module drops into, current value exceeds 2 times of capacitor rated current, main control MCU analysis is sent logic control signal by I/O mouth more afterwards, through switch driving circuit, be converted to and have in the control signal that drives the standby magnetic latching relay Motor ability of 1 ~ n, disconnect by force the standby magnetic latching relay of 1 ~ n, the action message of protection 1 ~ n magnetic latching relay; 3) when equipment excision capacitor, exchange the current value of each switch passage of 1 ~ n current transformer Real-Time Monitoring in acquisition module, if while also there is the current value while dropping into, judge that the fault of adhesive appears in 1 ~ n magnetic latching relay, now main control MCU is sent logic control signal by I/O mouth, through switch driving circuit, be converted to and have in the control signal that drives the standby magnetic latching relay Motor ability of 1 ~ n, disconnect by force the standby magnetic latching relay of 1 ~ n and avoid capacitor for a long time in input state.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597750A (en) * | 2014-11-28 | 2015-05-06 | 固安华电天仁控制设备有限公司 | Core relay fault detection and redundancy control system and control method |
| CN109509679A (en) * | 2018-11-30 | 2019-03-22 | 上海五零盛同信息科技有限公司 | Relay control system based on zero crossing delays time to control |
| CN113567909A (en) * | 2021-07-22 | 2021-10-29 | 重庆跃腾电器有限公司 | Magnetic latching relay temperature monitoring system on multi-user meter |
| CN114039336A (en) * | 2021-10-21 | 2022-02-11 | 贵州电网有限责任公司 | Integrated relay, control method and relay protection device |
| CN114649152A (en) * | 2022-04-01 | 2022-06-21 | 东莞市信捷安物联科技有限公司 | Zero-crossing opening method |
| CN114826705A (en) * | 2022-04-12 | 2022-07-29 | 国网湖北省电力有限公司信息通信公司 | APT attack determination method and system based on independent component analysis method and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009273323A (en) * | 2008-05-09 | 2009-11-19 | Chugoku Electric Power Co Inc:The | Control method of ground fault current suppression device of distribution line and ground fault current suppression device of distribution line |
| CN102412584A (en) * | 2011-11-28 | 2012-04-11 | 吉林省电力科学研究院有限公司 | Integrated intelligent adjustment and compensation capacitor bank |
| CN103001237A (en) * | 2012-11-19 | 2013-03-27 | 柳州电器科学研究所有限公司 | Intelligent combination switch |
| CN103441508A (en) * | 2013-07-30 | 2013-12-11 | 广西腾峰科技有限公司 | Multipurpose low-voltage intelligent capacitor |
| CN203839956U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional encoder |
| CN203839953U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch without standby magnetic latching relays |
| CN203839954U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch with temperature control function |
| CN203839955U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch with communication module |
-
2014
- 2014-01-08 CN CN201410008838.5A patent/CN103701141B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009273323A (en) * | 2008-05-09 | 2009-11-19 | Chugoku Electric Power Co Inc:The | Control method of ground fault current suppression device of distribution line and ground fault current suppression device of distribution line |
| CN102412584A (en) * | 2011-11-28 | 2012-04-11 | 吉林省电力科学研究院有限公司 | Integrated intelligent adjustment and compensation capacitor bank |
| CN103001237A (en) * | 2012-11-19 | 2013-03-27 | 柳州电器科学研究所有限公司 | Intelligent combination switch |
| CN103441508A (en) * | 2013-07-30 | 2013-12-11 | 广西腾峰科技有限公司 | Multipurpose low-voltage intelligent capacitor |
| CN203839956U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional encoder |
| CN203839953U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch without standby magnetic latching relays |
| CN203839954U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch with temperature control function |
| CN203839955U (en) * | 2014-01-08 | 2014-09-17 | 福建阳谷智能技术有限公司 | Novel multifunctional code switch with communication module |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597750A (en) * | 2014-11-28 | 2015-05-06 | 固安华电天仁控制设备有限公司 | Core relay fault detection and redundancy control system and control method |
| CN104597750B (en) * | 2014-11-28 | 2017-10-24 | 固安华电天仁控制设备有限公司 | A kind of core relay failure detection and redundancy control system and control method |
| CN109509679A (en) * | 2018-11-30 | 2019-03-22 | 上海五零盛同信息科技有限公司 | Relay control system based on zero crossing delays time to control |
| CN113567909A (en) * | 2021-07-22 | 2021-10-29 | 重庆跃腾电器有限公司 | Magnetic latching relay temperature monitoring system on multi-user meter |
| CN114039336A (en) * | 2021-10-21 | 2022-02-11 | 贵州电网有限责任公司 | Integrated relay, control method and relay protection device |
| CN114039336B (en) * | 2021-10-21 | 2023-09-19 | 贵州电网有限责任公司 | Integrated relay, control method and relay protection device |
| CN114649152A (en) * | 2022-04-01 | 2022-06-21 | 东莞市信捷安物联科技有限公司 | Zero-crossing opening method |
| CN114826705A (en) * | 2022-04-12 | 2022-07-29 | 国网湖北省电力有限公司信息通信公司 | APT attack determination method and system based on independent component analysis method and storage medium |
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