CN204089334U - From net type micro-capacitance sensor automatic switching control circuit - Google Patents
From net type micro-capacitance sensor automatic switching control circuit Download PDFInfo
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- CN204089334U CN204089334U CN201420518367.8U CN201420518367U CN204089334U CN 204089334 U CN204089334 U CN 204089334U CN 201420518367 U CN201420518367 U CN 201420518367U CN 204089334 U CN204089334 U CN 204089334U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model is open a kind of from net type micro-capacitance sensor automatic switching control circuit, comprise wind turbine generator, diesel generating set, batteries, charge-discharge circuit and inverter, Voltage stabilizing module is connected with at the electric discharge port of charge-discharge circuit, the output of this Voltage stabilizing module produces the inverting input of a reference voltage to voltage comparator, the normal phase input end of voltage comparator obtains the sampled voltage of electric discharge port, the output of voltage comparator is connected with the ignition drive circuit of diesel generating set, and ignition drive circuit is also connected with a relay.Its effect is: circuit structure is simple, it is convenient to control, can ensure that the supply voltage of reference voltage and ignition drive circuit is stablized by pressurizer, by sample circuit and voltage comparator, the discharge voltage to batteries is sampled and differentiates, the final diesel engine generator that automatically controls starts, and realize the automatic switching of power supply output, ensure that the reliability service from net type micro-capacitance sensor.
Description
Technical field
The utility model relates to a kind of electric power switching control circuit, specifically, is a kind of from net type micro-capacitance sensor automatic switching control circuit, belongs to field of electrical control.
Background technology
Along with society and economic fast development, the energy and environmental problem receive the concern of people day by day.Conventional energy resource is resource-constrained not only, even causes serious environmental pollution, runs counter to the Scientific Strategy of sustainable development, energy-conserving and environment-protective.In order to reduce the impact on environment, meet ever-increasing energy demand, micro-capacitance sensor based on generation of electricity by new energy also receives the concern of electric power enterprise and user, and one of the reliability of micro-capacitance sensor and the important subject impact of electrical network, user being become to micro-capacitance sensor development in recent years and application thereof.
From in net type micro-capacitance sensor, load is only powered by internal electric source, as shown in Figure 1, for wind generator system, generally include Wind turbines, diesel generating set and energy-storage system, energy-storage system adopts batteries usually, when wind-force is enough, utilize Wind turbines to generate electricity and by unnecessary power storage in storage battery, and when electric power deficiency, then to be compensated by diesel generating set work.
In prior art, the focus of people's research is how to carry out wind-force monitoring mostly, how to improve the generating efficiency of wind-driven generator, or how to ensure the stable output of batteries, when storage battery electric energy exports not enough, realize electric power compensation often by manually starting diesel generating set, the intelligence degree of system is low, is difficult to seamlessly transitting of guaranteed load operation conditions in electric power switching process.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of from net type micro-capacitance sensor automatic switching control circuit, when wind turbine generator energy output hour, electric power supply cannot be carried out in time to batteries, by detecting the discharged condition of batteries, then automatically controlling diesel generating set and opening, realizing electric power compensation by switching diesel generating set, ensure the supply of electric power of micro-capacitance sensor inside, be convenient to system reliability service.
For achieving the above object, the concrete technical scheme that adopts of the utility model is as follows:
A kind of from net type micro-capacitance sensor automatic switching control circuit, comprise wind turbine generator, diesel generating set and batteries, the electric energy output end of described wind turbine generator through the charging port of charge-discharge circuit to described battery charging, this batteries is connected with inverter through the electric discharge port of described charge-discharge circuit again, the DC power supply that batteries is released is converted to exchange through described inverter and exports, its key is: be connected with a Voltage stabilizing module at the electric discharge port of described charge-discharge circuit, the output of this Voltage stabilizing module produces the inverting input of a reference voltage to voltage comparator through a road bleeder circuit, the normal phase input end of this voltage comparator connects the sampled voltage that a sample circuit obtains the electric discharge port of described charge-discharge circuit, the output of described voltage comparator is connected with the ignition drive circuit of described diesel generating set, the output of Voltage stabilizing module described in the power supply termination of this ignition drive circuit, the coil windings of a relay is also serially connected with between the driving signal input and DC earthing end of described ignition drive circuit, the normally-closed contact of this relay is connected with the output of described inverter, the normally opened contact of this relay is connected with the electric energy output end of described diesel engine generator, the common of this relay is as exchanging the terminals exported.
Based on foregoing circuit syndeton, the sampled voltage of voltage comparator normal phase input end characterizes the discharged condition of batteries, when wind turbine generator energy output is not enough, system can the electric energy of progressively battery consumption group storage inside, when batteries discharge into a certain degree can not meet normal power supply time, then need to carry out energy compensating by diesel generating set, by inputting a reference voltage at the inverting input of voltage comparator, when sampled voltage is lower than reference voltage, then voltage comparator exports a control signal to control the ignition drive circuit work of diesel engine generator, utilize the switch contact of relay to switch outlet line simultaneously, realize the automatic control from net type micro-capacitance sensor internal power switching, guarantee system reliability service.
As further describing, described sample circuit comprises resistance R1, resistance R2 and resistance R3, and resistance R1, resistance R2 and resistance R3 are serially connected between the electric discharge port of described charge-discharge circuit and DC earthing end successively, the high level end of resistance R2 provides power supply to input to described pressurizer, and the high level end of resistance R3 provides described sampled voltage to the normal phase input end of described voltage comparator.
Further describe again, described bleeder circuit comprises resistance R4, resistance R5 and resistance R6, and resistance R4, resistance R5 and resistance R6 are serially connected between pressurizer power output end and DC earthing end successively, the high level end of resistance R5 provides power supply to input to described ignition drive circuit, and the high level end of resistance R6 provides described reference voltage to the inverting input of described voltage comparator.
By adopting foregoing circuit structure, on the one hand, in the excursion of batteries output voltage, pressurizer can ensure that the reference voltage of voltage comparator and the supply voltage of ignition drive circuit are stablized, also can be adjusted needing two signals compared by sample circuit and bleeder circuit on the other hand, by the proportionate relationship of each resistance of Reasonable adjustment, the reliable critical point of batteries discharge voltage can be found accurately, be convenient to carry out electric power switching in time.
In order to better realize the IGNITION CONTROL of diesel generating set, described ignition drive circuit comprises ignition coil L, one end of this ignition coil L is connected with the high level end of described resistance R5, be connected with described DC earthing end after other end string one switch element of this ignition coil L, between the two ends of described ignition coil L, Opposite direction connection has diode D1, triode Q1 is also provided with in described ignition drive circuit, the base stage of this triode Q1 connects the output of described voltage comparator, the collector electrode of this triode Q1 connects the high level end of described resistance R5 through resistance R7, the emitter of this triode Q1 is connected with described DC earthing end, coil windings and the resistance R8 of relay is serially connected with between the collector electrode and DC earthing end of described triode Q1, the collector electrode of described triode Q1 is also connected with the control end of described switch element through resistance R9.
Can find based on foregoing circuit, when batteries electric discharge is sufficient, the reference voltage that the sampled voltage of the normal phase input end gained of voltage comparator inputs higher than inverting input, voltage comparator exports a high level signal, now triode Q1 conducting, the voltage of its collector electrode is lower, and relay and ignition coil L cannot be impelled to work, and batteries electric discharge directly exports as exchanging after inverter.When batteries electric discharge is not enough, the reference voltage that the sampled voltage of the normal phase input end gained of voltage comparator inputs lower than inverting input, voltage comparator exports a low level signal, now triode Q1 disconnects, the voltage of its collector electrode is higher, impels relay and ignition coil L to work, and diesel engine generator starts, and the normal open switch of relay closes, the direct output AC power source of diesel engine generator.
As preferably, described switch element is one-way SCR D2.
In order to adapt to the lag characteristic that in diesel engine generator start-up course, electric power exports, described relay is energization delay relay, makes electric power switching more stable.
Remarkable result of the present utility model is: circuit structure is simple, it is convenient to control, while the change of batteries discharge voltage, can ensure that the supply voltage of reference voltage and ignition drive circuit is stablized by pressurizer, by sample circuit and voltage comparator, the discharge voltage to batteries is sampled and differentiates, finally can control diesel engine generator automatically to start, and realize the automatic switching of power supply output, ensure that the reliability service from net type micro-capacitance sensor.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams from net type micro-capacitance sensor;
Fig. 2 is schematic block circuit diagram of the present utility model;
Fig. 3 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model and operation principle are described in further detail.
As shown in Fig. 2-Fig. 3, a kind of from net type micro-capacitance sensor automatic switching control circuit, comprise wind turbine generator, diesel generating set and batteries, the electric energy output end of described wind turbine generator through the charging port of charge-discharge circuit to described battery charging, this batteries is connected with inverter through the electric discharge port of described charge-discharge circuit again, the DC power supply that batteries is released is converted to exchange through described inverter and exports, a Voltage stabilizing module is connected with at the electric discharge port of described charge-discharge circuit, the output of this Voltage stabilizing module produces the inverting input of a reference voltage to voltage comparator through a road bleeder circuit, the normal phase input end of this voltage comparator connects the sampled voltage that a sample circuit obtains the electric discharge port of described charge-discharge circuit, the output of described voltage comparator is connected with the ignition drive circuit of described diesel generating set, the output of Voltage stabilizing module described in the power supply termination of this ignition drive circuit, the coil windings of a relay is also serially connected with between the driving signal input and DC earthing end of described ignition drive circuit, the normally-closed contact of this relay is connected with the output of described inverter, the normally opened contact of this relay is connected with the electric energy output end of described diesel engine generator, the common of this relay is as exchanging the terminals exported.
As seen in Figure 3, in the present embodiment, sample circuit comprises resistance R1, resistance R2 and resistance R3, and resistance R1, resistance R2 and resistance R3 are serially connected between the electric discharge port of described charge-discharge circuit and DC earthing end successively, the high level end of resistance R2 provides power supply to input to described pressurizer, and the high level end of resistance R3 provides sampled voltage to the normal phase input end of described voltage comparator.Bleeder circuit comprises resistance R4, resistance R5 and resistance R6, and resistance R4, resistance R5 and resistance R6 is serially connected between pressurizer power output end and DC earthing end successively, the high level end of resistance R5 provides power supply to input to described ignition drive circuit, the high level end of resistance R6 provides reference voltage to the inverting input of voltage comparator, usually, the normal phase input end and inverting input of voltage comparator are also connected to a current-limiting resistance, Figure 3 shows that R10 and R11, the input and output of pressurizer are also connected with filter capacitor usually, electric capacity C1 and electric capacity C2 as illustrated in the drawing.
It can also be seen that from Fig. 3, described ignition drive circuit comprises ignition coil L, one end of this ignition coil L is connected with the high level end of described resistance R5, be connected with described DC earthing end after other end string one switch element of this ignition coil L, between the two ends of described ignition coil L, Opposite direction connection has diode D1, triode Q1 is also provided with in described ignition drive circuit, the base stage of this triode Q1 connects the output of described voltage comparator, the collector electrode of this triode Q1 connects the high level end of described resistance R5 through resistance R7, the emitter of this triode Q1 is connected with described DC earthing end, coil windings and the resistance R8 of relay is serially connected with between the collector electrode and DC earthing end of described triode Q1, the collector electrode of described triode Q1 is also connected with the control end of described switch element through resistance R9, switch element shown in figure is one-way SCR D2, switching tube or triode can certainly be adopted to replace.
Due in diesel generating set start-up course, its electric power exports usually has retardation, therefore described relay is set to energization delay relay, during ignition trigger, the switch of relay non-concurrent carries out switching, but time delay a period of time, carry out again exchanging the switching exported after diesel generating set electric power stable output, ensure the stability of system cloud gray model further.
Finally it should be noted that; the present embodiment is only described preferred embodiment of the present utility model; be not limited to the execution mode of Figure of description indication; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite without prejudice to the utility model aim and claim; can make like multiple types and representing; such as change the way of realization of sample circuit and bleeder circuit; change drive form of ignition coil etc., such conversion all falls within the utility model protection range.
Claims (6)
1. one kind from net type micro-capacitance sensor automatic switching control circuit, comprise wind turbine generator, diesel generating set and batteries, the electric energy output end of described wind turbine generator through the charging port of charge-discharge circuit to described battery charging, this batteries is connected with inverter through the electric discharge port of described charge-discharge circuit again, the DC power supply that batteries is released is converted to exchange through described inverter and exports, it is characterized in that: be connected with a Voltage stabilizing module at the electric discharge port of described charge-discharge circuit, the output of this Voltage stabilizing module produces the inverting input of a reference voltage to voltage comparator through a road bleeder circuit, the normal phase input end of this voltage comparator connects the sampled voltage that a sample circuit obtains the electric discharge port of described charge-discharge circuit, the output of described voltage comparator is connected with the ignition drive circuit of described diesel generating set, the output of Voltage stabilizing module described in the power supply termination of this ignition drive circuit, the coil windings of a relay is also serially connected with between the driving signal input and DC earthing end of described ignition drive circuit, the normally-closed contact of this relay is connected with the output of described inverter, the normally opened contact of this relay is connected with the electric energy output end of described diesel engine generator, the common of this relay is as exchanging the terminals exported.
2. according to claim 1 from net type micro-capacitance sensor automatic switching control circuit, it is characterized in that: described sample circuit comprises resistance R1, resistance R2 and resistance R3, and resistance R1, resistance R2 and resistance R3 are serially connected between the electric discharge port of described charge-discharge circuit and DC earthing end successively, the high level end of resistance R2 provides power supply to input to described pressurizer, and the high level end of resistance R3 provides described sampled voltage to the normal phase input end of described voltage comparator.
3. according to claim 1 and 2 from net type micro-capacitance sensor automatic switching control circuit, it is characterized in that: described bleeder circuit comprises resistance R4, resistance R5 and resistance R6, and resistance R4, resistance R5 and resistance R6 are serially connected between pressurizer power output end and DC earthing end successively, the high level end of resistance R5 provides power supply to input to described ignition drive circuit, and the high level end of resistance R6 provides described reference voltage to the inverting input of described voltage comparator.
4. according to claim 3 from net type micro-capacitance sensor automatic switching control circuit, it is characterized in that: described ignition drive circuit comprises ignition coil L, one end of this ignition coil L is connected with the high level end of described resistance R5, be connected with described DC earthing end after other end string one switch element of this ignition coil L, between the two ends of described ignition coil L, Opposite direction connection has diode D1, triode Q1 is also provided with in described ignition drive circuit, the base stage of this triode Q1 connects the output of described voltage comparator, the collector electrode of this triode Q1 connects the high level end of described resistance R5 through resistance R7, the emitter of this triode Q1 is connected with described DC earthing end, coil windings and the resistance R8 of relay is serially connected with between the collector electrode and DC earthing end of described triode Q1, the collector electrode of described triode Q1 is also connected with the control end of described switch element through resistance R9.
5. according to claim 4 from net type micro-capacitance sensor automatic switching control circuit, it is characterized in that: described switch element is one-way SCR D2.
6. according to claim 1 or 4 from net type micro-capacitance sensor automatic switching control circuit, it is characterized in that: described relay is energization delay relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420518367.8U CN204089334U (en) | 2014-09-09 | 2014-09-09 | From net type micro-capacitance sensor automatic switching control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420518367.8U CN204089334U (en) | 2014-09-09 | 2014-09-09 | From net type micro-capacitance sensor automatic switching control circuit |
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| CN204089334U true CN204089334U (en) | 2015-01-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576820A (en) * | 2016-02-02 | 2016-05-11 | 六安市同心畅能电子科技有限公司 | Automatic switching controller of electromobile emergency battery |
| CN106026364A (en) * | 2016-06-24 | 2016-10-12 | 国网安徽省电力公司黄山供电公司 | Uninterruptible power supply system of small-region power grid |
| CN113193645A (en) * | 2021-04-22 | 2021-07-30 | 四川荣创新能动力系统有限公司 | Control method of hydrogen fuel cell emergency power supply system |
-
2014
- 2014-09-09 CN CN201420518367.8U patent/CN204089334U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576820A (en) * | 2016-02-02 | 2016-05-11 | 六安市同心畅能电子科技有限公司 | Automatic switching controller of electromobile emergency battery |
| CN106026364A (en) * | 2016-06-24 | 2016-10-12 | 国网安徽省电力公司黄山供电公司 | Uninterruptible power supply system of small-region power grid |
| CN113193645A (en) * | 2021-04-22 | 2021-07-30 | 四川荣创新能动力系统有限公司 | Control method of hydrogen fuel cell emergency power supply system |
| CN113193645B (en) * | 2021-04-22 | 2022-08-09 | 四川荣创新能动力系统有限公司 | Control method of hydrogen fuel cell emergency power supply system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150909 |
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| EXPY | Termination of patent right or utility model |