CN104935067A - Environmental monitoring station power supply system - Google Patents
Environmental monitoring station power supply system Download PDFInfo
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- CN104935067A CN104935067A CN201510400484.3A CN201510400484A CN104935067A CN 104935067 A CN104935067 A CN 104935067A CN 201510400484 A CN201510400484 A CN 201510400484A CN 104935067 A CN104935067 A CN 104935067A
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Abstract
The invention discloses an environmental monitoring station power supply system. The system comprises electric energy access equipment, a stable voltage filter circuit and a self-oscillation flyback converter. The electric energy access equipment comprises an electric supply power supply apparatus containing an alternating current and direct current converter and a wind energy power supply apparatus containing a wind turbine, an electric generator, a rectifier, an inverter, a storage battery controller, a storage battery and the like. The alternating current and direct current converter provides an direct current input voltage. The storage battery controller is provided with a lightning protection circuit. The storage battery can be used to assist charging. A power tube driving chip of the inverter is connected to a microprocessor circuit so as to drive a power tube. The self-oscillation flyback converter comprises an input filter circuit, a main power circuit, an output filter circuit, a sampling circuit, an error amplification circuit, a double tube driving control circuit and a soft start circuit. Direct current input is converted into a direct current voltage needed by electronic equipment. Through the environment monitoring station power supply system and a subsystem or a component, integral performance of the environment monitoring station system can be increased.
Description
Technical field
The present invention relates to power technology, particularly environmental monitoring station's power-supply system and subsystem thereof or parts.
Background technology
At present, environmental issue more and more comes into one's own.For the environmental monitoring station in some areas, supply of electric power environment is poor, needs storage battery to provide the electric power needed for enviromental monitoring equipment (as sensing probe, controller, communication module, alarm etc.).These storage batterys are normally powered by civil power, and for the area (as area, NW China Gobi desert) of the clean energy resource such as wind energy, wind energy abundance, this is energy-conserving and environment-protective not undoubtedly.Be understandable that, environmental monitoring standing-meeting works at times, and in the standby state, the various electronic equipments of environmental monitoring station still can expend the energy, and this is also comparatively unfavorable for energy-saving and emission-reduction.In addition, the frequency of existing standby power circuit part is more and more higher, and power density is also increasing, too increases the overall power consumption of environmental monitoring station.Therefore, be necessary to improve environmental monitoring station's power-supply system and subsystem thereof or parts, to reduce the power consumption of system, realize energy-conservation object.
Summary of the invention
In view of this, the object of the invention is to improve environmental monitoring station's power-supply system and subsystem thereof or parts, to realize power conservation requirement.
For solving the problems of the technologies described above, the invention provides a kind of environmental monitoring station power-supply system, comprise the electric energy access device, filter circuit of pressure-stabilizing and the self-oscillation flyback converter that connect successively, electric energy access device provides direct current to input electricity, through filter circuit of pressure-stabilizing voltage stabilizing and filtering, the electronic equipment that corresponding direct voltage is provided in environmental monitoring station is transformed to by self-oscillation flyback converter, wherein:
Electric energy access device comprises mains power supply, powered by wind energy device and electric energy switch, and mains power supply and powered by wind energy device are switched to utility mode or wind energy pattern by electric energy switch;
Mains power supply comprises civil power access terminal and AD/CD transducer, and civil power access terminal incoming transport electricity, is converted to direct current through AD/CD transducer, under utility mode, provides DC input voitage to self-oscillation flyback converter;
AD/CD transducer comprises rectification circuit and filter circuit, filter circuit comprises diode D3.4, diode D4.4, diode D8.4, diode D9.4, electric capacity C7.4 and electric capacity C9.4, the anode of diode D3.4 is connected with the output of rectification circuit, the negative electrode of diode D3.4 is connected with the negative electrode of diode D9.4, one end of electric capacity C7.4 is connected with the negative electrode of diode D3.4, the other end of electric capacity C7.4 is connected with the anode of diode D8.4 and the negative electrode of diode D4.4 respectively, the negative electrode of diode D8.4 is connected with the anode of diode D9.4, one end of electric capacity C9.4 is connected with the anode of diode D4.4, the other end of electric capacity C9.4 is connected with the anode of diode D9.4, the negative electrode of diode D9.4 is also connected with DC output end,
Powered by wind energy device comprises wind turbine, generator, rectifier, DC voltage booster circuit, inverter, battery controller, storage battery, system controller, lets out energy load controller, lets out composition such as energy load, brake device etc., wherein: wind turbine, generator, rectifier, DC voltage booster circuit, inverter are in turn connected into power supply main road, to power to AC load; Electric power storage controller, storage battery, inverter are in turn connected into accumulation of energy branch road, and this electric power storage controller controls rectifier and discharges to inverter to charge in batteries and control storage battery; Brake device acts on wind turbine line shaft; Let out energy load is connected to generator output through letting out energy load controller; System controller connects brake device respectively, lets out energy load controller and battery controller, brakes to control brake device, lets out and load can let out energy and charge in batteries; The collection signal of the access of this system controller inverter, storage battery and wind energy transducer, to the running status carrying out regulating wind power electric supply installation according to load condition, energy accumulating state and wind velocity condition;
Battery controller comprises charging circuit, discharge circuit, control circuit and lightning protection circuit, and charging circuit, discharge circuit and storage battery are in parallel, lightning protection circuit and storage battery series connection, and wherein lightning protection circuit is lightning protection inductance;
Storage battery comprises accumulator body, cell managing device, data/address bus, auxiliary power supply bus and auxiliary charging control line, and wherein the positive pole of accumulator body is connected with cell managing device respectively with negative pole; Cell managing device comprises the detection control unit be connected respectively with the positive pole of accumulator body and negative pole and the supplemental charging unit be connected respectively with negative pole with the positive pole of accumulator body, and detection control unit is connected with supplemental charging unit; Data/address bus is connected with detection control unit; Auxiliary power supply bus is connected with supplemental charging unit; Auxiliary charging control line is connected with the output of detection control unit; Detection control unit, for detecting the running status of accumulator body in real time, when the real-time voltage of accumulator body is less than threshold voltage, is charged to accumulator body by auxiliary power supply bus by supplemental charging unit;
Inverter comprises power tube driving chip and six power tubes, and power tube driving chip is connected to microcontroller circuit, so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff; Six power tubes are divided into three groups, and every group power control to cross streams exports, corresponding access diode between the source electrode of each power tube and drain electrode;
Self-oscillation flyback converter comprises input filter circuit, main power circuit, output filter circuit, sample circuit, error amplifying circuit, two-tube Drive and Control Circuit and soft starting circuit, direct current input is through input filter circuit, main power circuit, export after output filter circuit and obtain direct current output, the sampling current of output is through sample circuit, error amplifying circuit, after two-tube Drive and Control Circuit, negative feedback control is carried out to the main switch in main power circuit, soft starting circuit is connected to the output of input filter circuit, the soft starting circuit other end is connected to two-tube Drive and Control Circuit to realize soft start.
More preferably, in self-oscillation flyback converter:
Input filter circuit is the π type filter circuit comprising filter capacitor C0, C13 and filter inductance L0;
Main power circuit arranges transformer input winding P1, exports winding P2, metal-oxide-semiconductor TR1, current-limiting resistance R5, export rectifier diode D1 and realize the conversion of power supply energy, transmission and constrained input isolation, the grid of metal-oxide-semiconductor TR1 oppositely meets voltage-stabiliser tube Z4 to make the grid starting resistor strangulation of metal-oxide-semiconductor TR1 on predetermined level;
Two-tube Drive and Control Circuit comprises resistance R6, R9, R12, electric capacity C5, C12, NPN type diode TR2, positive-negative-positive diode TR3, the optocoupler OC1 conducting when output voltage is higher, makes triode TR2, TR3 conducting respectively, accelerates metal-oxide-semiconductor TR1 and turns off;
Output filter circuit is the filter circuit comprising electric capacity C3;
Soft starting circuit comprises divider resistance R10, R13, R14, start-up capacitance C9 and diode D4, and when accessing input voltage, electric current charges to start-up capacitance C9 through resistance R10, realizes start soft start function when start-up capacitance voltage reaches MOS threshold voltage.
More preferably, self-oscillation flyback converter comprises output short circuit protection circuit, and output short circuit protection circuit is arranged at the negative feedback winding output loop of the negative feedback loop in main power circuit, and the other end of output short circuit protection circuit is connected to two-tube Drive and Control Circuit.
More preferably, self-oscillation flyback converter comprises the voltage stabilizing circuit containing pressurizer ADJ, to be connected to main power circuit and output short circuit protection circuit and two-tube Drive and Control Circuit by optocoupler OC1.
More preferably, output short circuit protection circuit comprises feedback winding P3, resistance R1A, R1B, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to the tie point of resistance R1A and resistance R1, and resistance R1A passes through and the resistance R1B connect, electric capacity C11 are connected to ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
More preferably, output short circuit protection circuit comprises feedback winding P3, resistance R1A, R1B, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1 by resistance R1A, accesses and the resistance R1B connect, electric capacity C11 between the tie point of resistance R1A and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
More preferably, output short circuit protection circuit comprises feedback winding P3, resistance R1A, R1B, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1, accesses resistance R1B between the tie point of negative feedback winding P3 different name end and resistance R1 and ground, and resistance R1B is with the resistance R1A be connected in series, electric capacity C11 and connect; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
More preferably, output short circuit protection circuit comprises feedback winding P3, resistance R1A, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1, serial capacitance C11, resistance R1A between the tie point of negative feedback winding P3 different name end and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
More preferably, output short circuit protection circuit comprises feedback winding P3, resistance R1A, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1, series resistor R1A, electric capacity C11 between the tie point of negative feedback winding P3 different name end and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
More preferably, output short circuit protection circuit comprises feedback winding P3, resistance R1A, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1 through resistance RA1, accesses electric capacity C11 between the tie point of resistance RA1 and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
Compared with prior art, the present invention standby environmental monitoring station power-supply system have employed wind energy accumulation of energy, in the standby state without the need to consuming civil power electric energy, has saved electric energy thus.In addition, the protective circuit part of the present invention to environmental monitoring station's power-supply system is improved, and the energy of this protective circuit part autophage is considerably less, thus can reduce short circuit loss further, effectively improves power-efficient.
Accompanying drawing explanation
Fig. 1 is the block diagram of environmental monitoring station of the present invention power-supply system;
Fig. 2 is the electrical schematic diagram of environmental monitoring station of the present invention power-supply system;
Fig. 3 is the block diagram of mains power supply in environmental monitoring station of the present invention power-supply system;
Fig. 4 is the circuit diagram of AC/DC transducer in environmental monitoring station of the present invention power-supply system;
Fig. 5 is the block diagram of wind energy electric supply installation in environmental monitoring station of the present invention power-supply system;
Fig. 6 is the block diagram of battery controller in environmental monitoring station of the present invention power-supply system;
Fig. 7 is the block diagram of storage battery in environmental monitoring station of the present invention power-supply system;
Fig. 8 is the block diagram of inverter in environmental monitoring station of the present invention power-supply system;
Fig. 9 is the block diagram of modified model powered by wind energy device in environmental monitoring station of the present invention power-supply system;
Figure 10 is the block diagram of self-oscillation flyback converter embodiment one in environmental monitoring station of the present invention power-supply system;
Figure 11 is the electrical schematic diagram of self-oscillation flyback converter embodiment two in environmental monitoring station of the present invention power-supply system;
Figure 12 is the electrical schematic diagram of self-oscillation flyback converter embodiment three in environmental monitoring station of the present invention power-supply system;
Figure 13 is the circuit diagram of self-oscillation flyback converter embodiment four in environmental monitoring station of the present invention power-supply system;
Figure 14 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment five in environmental monitoring station of the present invention power-supply system;
Figure 15 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment six in environmental monitoring station of the present invention power-supply system;
Figure 16 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment seven in environmental monitoring station of the present invention power-supply system;
Figure 17 is the output short circuit protection partial circuit figure of converter embodiment eight in environmental monitoring station of the present invention power-supply system;
Figure 18 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment nine in environmental monitoring station of the present invention power-supply system.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
For simplicity, in following examples, components and parts code name has been undertaken encoding wherein by certain rule: first digit represents the element number in example, and second digit represents element place figure number, as in resistance R10-11, the position of 10 expression resistance, 11 are expressed as the resistance in Figure 13.It is noted that the second digit wherein only representing embodiment numbering hereafter may be omitted in some cases, and be only retained as the first digit of Reference numeral.
See Fig. 1, it is the block diagram of environmental monitoring station of the present invention power-supply system.This environmental monitoring station's power-supply system comprises the electric energy access device 100, filter circuit of pressure-stabilizing 200 and the self-oscillation flyback converter 300 that connect successively, electric energy access device 100 utility mode or wind energy pattern can provide DC input voitage, filter circuit of pressure-stabilizing 200 pairs of DC input voitage carry out voltage stabilizing and filtering, voltage stabilizing and filtered input voltage are carried out DC-dc conversion by self-oscillation flyback converter (RCC) 300, export satisfactory direct voltage for environmental monitoring station 400.Herein, environmental monitoring station 400 generally includes but is not limited to the combination of sensing probe, controller, communication module, alarm etc., depending on concrete monitoring system, repeats no more.
See Fig. 2, it is the electrical schematic diagram of environmental monitoring station of the present invention power-supply system.The electric energy access device 100 of this environmental monitoring station's power-supply system comprises mains power supply, powered by wind energy device and electric energy switch, is switched to utility mode or wind energy pattern, to provide DC input voitage by electric energy switch; The input voltage-stabiliser tube of filter circuit of pressure-stabilizing 200 is connected between the input of electric energy switch and self-oscillation flyback converter 300, between the input that input filter capacitor is connected to self-oscillation flyback converter 300 and ground; Self-oscillation flyback converter 300 comprises transformer, and the input winding of transformer is connected to conversion input circuit, and the output winding of transformer is connected to conversion output loop, to carry out voltage transformation under the control of conversion control circuit.
See Fig. 3, it is the block diagram of mains power supply in environmental monitoring station of the present invention power-supply system.This mains power supply 110 comprises civil power access terminal 111, AC/DC transducer 112 successively, civil power access terminal 111 accesses 220v or 380v alternating current AC, be converted to direct current DC through AC/DC transducer 112, under utility mode, provide direct current to input to self-oscillation flyback converter.When wind-force is not enough, civil power mode of operation is started, 220v or 380v mains electricity is converted to direct current through AC/DC transducer 112, to drive self-oscillation flyback converter.Wind-force then provides DC input voitage by powered by wind energy device time sufficient, hereafter will further illustrate.
See Fig. 4, it is the circuit diagram of AC/DC transducer in environmental monitoring station of the present invention power-supply system.This comprises AC/DC transducer and mainly comprises rectification circuit 1121 and filter circuit 1122, wherein: rectification circuit 1121 carries out rectification process for giving input AC electricity, preferably adopt full-wave bridge rectifier circuit BR1, it is made up of four diodes, simplicity of design is practical, can meet the rectification demand of client well, filter circuit 1122 is for carrying out filtering process to the alternating current V+ after rectification process, it comprises diode D3.4, diode D4.4, diode D8.4, diode D9.4, electric capacity C7.4 and electric capacity C9.4, the anode of diode D3.4 is connected with the output of rectification circuit, the negative electrode of diode D3.4 is connected with the negative electrode of diode D9.4, one end of electric capacity C7.4 is connected with the negative electrode of diode D3.4, the other end of electric capacity C7.4 is connected with the anode of diode D8.4 and the negative electrode of diode D4.4 respectively, the negative electrode of diode D8.4 is connected with the anode of diode D9.4, one end of electric capacity C9.4 is connected with the anode of diode D4.4, the other end of electric capacity C9.4 is connected with the anode of diode D9.4, the negative electrode of diode D9.4 is also connected with DC output end.
As shown in Figure 4, operation principle and the work process of this AC/DC transducer are: during conversion, energy storage is carried out in electric capacity C7.4 and electric capacity C9.4 series connection, electric capacity C7.4 and electric capacity C9.4 is made to be the conversion that small capacitances can complete the original AC-DC using bulky capacitor to realize, what reduce AC/DC transducer realizes cost, reduces the power factor of whole circuit simultaneously.When the voltage of the alternating current after rectification process be greater than electric capacity C7.4 and electric capacity C9.4 voltage and time, alternating current after rectification process charges to arriving electric capacity C7.4 and electric capacity C9.4 through diode D3.4, electric capacity C7.4, diode D8.4 and electric capacity C9.4 successively, and diode D4.4 and diode D9.4 ends.Here electric capacity C7.4 and electric capacity C9.4 uses the electric capacity of equal capacitance value, and these two electric capacity can be charged to (Vbuck/2)=(Vac peak value/2).The voltage of the alternating current after at this moment rectification process be less than or equal to electric capacity C7.4 and electric capacity C9.4 voltage and, namely V+ changes to and is less than or equal to (Vac peak value/2), diode D3.4 ends, V+ no longer powers to DC output end, at this moment diode D8.4 ends, diode D4.4 and diode D9.4 conducting.Discharged to DC output end by electric capacity C7.4, diode D4.4 and electric capacity C9.4, diode D9.4, namely by electric capacity C7.4 and electric capacity C9.4, load circuit is powered.At this moment the change in voltage of DC output end (i.e. Vbuck) would not have crest and trough with V+ sample, but the crest of smooth change, play the effect of waveform copped wave thus.Be less than or equal to when V+ changes to (Vac peak value/2) simultaneously, V+ does not power to DC output end, namely when change in voltage is trough, input current is also decreased to 0, so voltage and current change consistency is better than the general consistency with the circuit of electrochemical capacitor greatly, so the power supply input power factor of the present embodiment AC/DC transducer also can improve.
In the diagram, AC/DC transducer also comprises filter capacitor C10.4, and one end of filter capacitor C10.4 is connected with DC output end, the other end ground connection of filter capacitor C10.4.Voltage DC output end being exported by the filtering of electrolytic capacitor filter C10 is more level and smooth, better meets the demand of user's direct current supply.In addition, this AC/DC transducer also comprises the light-emitting diode D1.4 of the operating state being used to indicate AC/DC transducer, the minus earth of light-emitting diode D1.4, and the anode of light-emitting diode D1.4 is connected with DC output end Vbuck by resistance R5.4.Further; this AC/DC transducer also comprises the voltage stabilizing didoe D2.4 for the protection of light-emitting diode D1.4; the plus earth of voltage stabilizing didoe D2.4, the negative electrode of voltage stabilizing didoe D2.4 is connected with the anode of DC output end and light-emitting diode D1.4 respectively by resistance R4.4.When the AC/DC transducer of the present embodiment is powered to DC output end, at this moment light-emitting diode D1.4 can be lit to indicate this AC/DC transducer in running order.Voltage stabilizing didoe D2.4 then can ensure that the operating voltage at light-emitting diode D1.4 two ends can not be excessive and damaged by light-emitting diode D1.4.
See Fig. 5, it is the block diagram of wind energy electric supply installation in environmental monitoring station of the present invention power-supply system.This powered by wind energy device comprises wind turbine 114, generator 115, rectifier 116, inverter 117, battery controller 113 and storage battery 120, wind turbine 114, generator 115, rectifier 116 and inverter 117 are in turn connected into power supply main road, with to AC load (can be the equipment such as motor, the not shown power supply of the present invention); Rectifier 116, battery controller 113, storage battery 120 are in turn connected into accumulation of energy branch road, this battery controller 113 controls rectifier 116 and charges to storage battery 120 and control storage battery 120 and discharge to inverter 117, and the electric energy of storage battery 120 can be provided in DC load (environmental monitoring station etc. as in the present invention).
Under powered by wind energy pattern, the wind energy of catching is driven generator 115 with the form of mechanical energy by wind turbine 114, the alternating current that the voltage exported and frequency all change transfers direct current to through rectifier 116, the alternating current transferring constant voltage constant frequency when air quantity is sufficient through inverter 117 to is to for AC load, and excrescent electric power is charged to storage battery 120 under battery controller 113 control; The electric energy of storage battery 120 is supplied to DC load, also can be discharged to inverter 117 when deficiency in draught.
Fig. 5 adopts inverter 117 to change direct current into alternating current, and use to be supplied to AC load (the present invention is not shown), the concrete structure of inverter 117 is as described below.
See Fig. 6, it is the block diagram of battery controller in environmental monitoring station of the present invention power-supply system.This battery controller 113 can access civil power, wind energy and wind energy electric power at times, this battery controller 113 comprises charging circuit 1131, discharge circuit 1133, control circuit 1132 and lightning protection circuit 1134, charging circuit 1131, discharge circuit 1133 and storage battery 120 are in parallel, and lightning protection circuit 1134 and storage battery 120 are connected.Owing to adding lightning protection circuit 1134, the thunder-strike current flowing through storage battery 120 greatly reduces.
Lightning protection circuit 1134 in the present embodiment is specially lightning protection inductance, and the thunder-strike current flowing through storage battery 120 after adding this lightning protection inductance greatly reduces; Meanwhile, the induction reactance of this lightning protection inductance much larger than accumulator internal resistance, thus at storage battery 120 two ends a point residual voltage also greatly reduce, also enhance the lightning protection capability of system like this.In addition, also can to connect respectively lightning protection inductance in charging circuit 1131, discharge circuit 1133, to improve lightning protection capability further.
See Fig. 7, it is the block diagram of storage battery in environmental monitoring station of the present invention power-supply system.This storage battery 120 comprises accumulator body 1201, battery management module 1202, data/address bus 1203, auxiliary power supply bus 1205 and auxiliary charging control line 1204, and wherein the positive pole of accumulator body 1201 is connected with battery management module 1202 respectively with negative pole.Further illustrate as follows.
In Fig. 7, this battery management module 1202 comprises the detection control unit 12021 be connected respectively with the positive pole of accumulator body 1201 and negative pole and the supplemental charging unit 12022 be connected respectively with negative pole with the positive pole of accumulator body 1201, and detection control unit 201 is connected with supplemental charging unit 202; Data/address bus 1203 is connected with detection control unit 12021; Auxiliary power supply bus 1205 is connected with supplemental charging unit 12022; Auxiliary charging control line 1204 is connected with the output of detection control unit 12021; Detection control unit 12021, for detecting the running status of accumulator body 1201 in real time, when the real-time voltage of accumulator body 1201 is less than threshold voltage, charged by auxiliary power supply bus 1205 pairs of accumulator bodies 1201 by supplemental charging unit 12022.
In the present embodiment, detection control unit 12021 can detect the state of accumulator body 1201, and carry out discharge and recharge operation to this accumulator body 1201 under the coordinative role of supplemental charging unit 12022, thus storage battery entirety is made all to remain on desirable balance of voltage state.Storage battery so both can be made to keep active, the state of the balance of voltage can have been reached again, and be unlikely to occur to overcharge or the state of charge less, which thereby enhance the life-span of storage battery.
See Fig. 8, it is the block diagram of inverter in environmental monitoring station of the present invention power-supply system.This inverter comprises power tube driving chip, and this power tube driving chip is connected to microcontroller circuit (MCU/DSP), so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff.Concrete, described inverter comprises six power tube B1 ~ B6, and these six power tubes are divided into three groups, and every group power controls a phase and exports.
The concrete connected mode of each power tube is: the source electrode of power tube B1, B2, B3 connects one end of DC power supply jointly, the drain electrode of power tube B4, B5, B6 connects the other end of DC power supply jointly, the tie point of the drain electrode of power tube B1 and the source electrode of power tube B4 connects the U phase terminal of AC load (as motor), the tie point of the drain electrode of power tube B2 and the source electrode of power tube B5 connects the V phase terminal of AC load, and the drain electrode of power tube B3 and the source electrode tie point of power tube B6 connect the W phase terminal of frequency converting air-conditioner compressor AC load; The grid of power tube B1, B2, B3, B4, B5, B6 connects an output of power tube driving chip respectively, and each input of this power tube driving chip controls by output pulse width conditioning signal PWM1, PWM2, PWM3, PWM4, PWM5, PWM6 Zhong mono-tunnel of microcontroller circuit respectively.Corresponding access diode between the source electrode of these six power tube B1 ~ B6 and drain electrode.
Microprocessor produces corresponding 6 road pulse width modulating signals, i.e. six drive singal PWM1 ~ PWM6 according to the operation rule of setting; 6 power tube (MOSFET or IGBT) B1 ~ B6 of inverter are driven by power tube driving chip; The alternate conduction of these power tubes and shutoff, produce three-phase modulations waveform, output voltage is adjustable, the three-phase alternating current of changeable frequency, and U, V, W terminals of three-phase electricity winding are connected to respective quadrature current load and run to drive it.
The present invention improves powered by wind energy device, wind energy can be made to export more stable, be described in detail as follows.
See Fig. 6, it is the block diagram of modified model powered by wind energy device in this practicality new environmental monitoring station power-supply system.This powered by wind energy device by wind turbine 114, generator 115, rectifier 116, DC voltage booster circuit 118, inverter 117, battery controller 113, storage battery 120, system controller 119, let out and can load controller 1102, brake device 1103, brake device 1101 etc. form, wherein: wind turbine 114, generator 115, rectifier 116, DC voltage booster circuit 118, inverter 117 are in turn connected into power supply main road, to power to AC load; Battery controller 113, storage battery 120, inverter 117 are in turn connected into accumulation of energy branch road, and this battery controller 113 controls rectifier 116 and charges to storage battery 120 and control storage battery 120 and discharge to inverter 117; Brake device 1101 acts on wind turbine 114 line shaft; Brake device 1103 is connected to the output of generator 115 through letting out energy load controller 1102; System controller 119 connects brake device 1101 respectively, lets out energy load controller 1102 and battery controller 113, to control, brake device 1101 brakes, brake device 1103 lets out energy and storage battery 120 charges; This system controller 119 accesses the collection signal of inverter 117, storage battery 120 and wind energy transducer, to the running status carrying out regulating wind power electric supply installation according to load condition, energy accumulating state and wind velocity condition.
In the present embodiment, battery controller 113, storage battery 120, parts such as inverter 117 grade can continue to use aforementioned structure, no longer launch explanation.
The working mechanism of this modified model powered by wind energy device is: the incision wind speed reaching wind turbine running for wind speed, and when not exceeding cut-out wind speed, in stable work wind speed, system controller carrys out the state transfer energy of control switch T1 ~ T5 according to wind velocity condition, load current threshold, the threshold value of putting storage battery, mainly comprises following several situation (as shown in Figure 6):
(1) wind turbine → generator → rectifier → DC voltage booster circuit → inverter → AC load.
(2) circuit 1: wind turbine → generator → rectifier → DC voltage booster circuit → inverter → AC load; Circuit 2: wind turbine → generator → rectifier → storage battery (charging); Circuit 3: wind turbine → generator → let out energy load; Circuit 4: wind turbine → brake device.
(3) circuit 5: wind turbine → generator → rectifier → DC voltage booster circuit → inverter → AC load; Circuit 6: storage battery (electric discharge) → DC voltage booster circuit → inverter → AC load.
(4) storage battery (electric discharge) → DC voltage booster circuit → inverter → AC load.
If calm and wind speed is excessive, exceed the maximum wind velocity that wind-driven generator bears, will mechanical braking device be started at that time, wind turbine is pinned, to protect wind generator system.
See Figure 10, it is the block diagram of self-oscillation flyback converter embodiment one in environmental monitoring station of the present invention power-supply system.This self-oscillation flyback converter mainly comprises input filter circuit, soft starting circuit, metal-oxide-semiconductor, transformer, pulse frequency modulation circuit (PFM), benchmark amplifying circuit, circuit such as isolation optocoupler, voltage-stabilizing output circuit etc., wherein: input voltage connects voltage-stabilizing output circuit through transformer; Soft starting circuit connects the grid of metal-oxide-semiconductor, and the grid of this metal-oxide-semiconductor also connects pulse frequency modulation circuit; Benchmark amplifying circuit, isolation optocoupler, thus coating-forming voltage negative feedback loop is also connected between pulse frequency modulation circuit and voltage-stabilizing output circuit.
See Figure 11, it is the block diagram of self-oscillation flyback converter embodiment two in environmental monitoring station of the present invention power-supply system.Its circuit basic composition is: pulse frequency modulation circuit is primarily of compositions such as NPN type triode TR1-11, electric capacity C6-11 and C5-11, resistance R11-11 and R9-11, sustained diode 3-11 and feedback winding P3-11; Input voltage is from the Same Name of Ends access of input winding P1-11, and input the drain electrode of the different name termination metal-oxide-semiconductor TR2-11 of winding P1-11, the source electrode of this metal-oxide-semiconductor TR2-11 is respectively by resistance R5-11 ground connection and the base stage being met triode TR2-11 by biasing resistor R9-11, and the two ends shunt capacitance C5-11 of this biasing resistor R9-11; Triode TR1-11 collector electrode connects the grid of metal-oxide-semiconductor TR2-11, simultaneously the grounded emitter of triode TR1-11; Feedback winding P3-11 Same Name of Ends connects the grid of metal-oxide-semiconductor TR2-11 through electric capacity C6-11, resistance R11-11; In addition, an other road of input voltage connects the grid of metal-oxide-semiconductor TR2-11 through soft starting circuit; And benchmark amplifying circuit is made up of pressurizer ADJ, it act as with the sampled voltage of output loop part for negative-feedback signal, is input to the base stage of the transistor TR1-11 of pulse frequency modulation circuit, coating-forming voltage negative feedback loop through optocoupler OC1-11; Voltage-stabilizing output circuit is formed by connecting primarily of output winding P2-11, the rectifier diode D1-11 of transformer T1-11 and filter capacitor C3-11.
See Figure 12, it is the electrical schematic diagram of self-oscillation flyback converter embodiment three in environmental monitoring station of the present invention power-supply system.In this environmental monitoring station's power-supply system (hereinafter referred to as power supply): DC input exports after input filter circuit 310, main power circuit 330, output filter circuit 360, obtain DC and export; After the output of power supply has a sampling current to flow through sample circuit, error amplifying circuit, two-tube Drive and Control Circuit 340, negative feedback control is carried out to the main switch (being preferably metal-oxide-semiconductor) in main power circuit 330; Meanwhile, be connected with a soft starting circuit 320 at the output of input filter circuit 310, this soft starting circuit 320 other end is connected with two-tube Drive and Control Circuit 340 soft start function realizing power supply; Significantly, have an output short circuit protection circuit 350 in the negative feedback winding output loop in the negative feedback loop in main power circuit 330, the other end of this output short circuit protection circuit 350 is connected to two-tube Drive and Control Circuit 340.Identify in Figure 12 Is-s1, SD-dc, IS-s, GD-dc etc. four road signal to reflect the course of work of two-tube Drive and Control Circuit 340, further illustrate below in conjunction with specific implementation circuit.
See Figure 13, it is the circuit diagram of self-oscillation flyback converter embodiment four in environmental monitoring station of the present invention power-supply system.This realizing circuit mainly comprises following part: input filter circuit 310, soft starting circuit 320, main power circuit 330, two-tube Drive and Control Circuit 340, output short circuit protection circuit 350, output filter circuit 360, voltage stabilizing circuit 370, wherein:
Input filter circuit 310, comprises filter capacitor C0-13, C1-13 and filter inductance L0-13, and its structure can be known π type filter circuit theory structure, does not describe in detail at this.
Soft starting circuit 320, comprises divider resistance R10-13, R13-13, R14-13, start-up capacitance C9-13 and diode D4-13.Its operation principle is for when accessing input voltage, and electric current charges to C9-13 through R10-13, and after elapsed time t=R10-13*C9-13, capacitance voltage reaches MOS threshold voltage, realizes start soft start function.
Main power circuit 330, comprises transformer input winding P1-13, exports winding P2-13, metal-oxide-semiconductor TR1-13, current-limiting resistance R5-13, export rectifier diode D1-13, realize the conversion of power supply energy, transmission and constrained input isolation.In addition, be oppositely connected to voltage-stabiliser tube Z4-13 at the grid of metal-oxide-semiconductor TR1-13, can make the grid starting resistor strangulation of metal-oxide-semiconductor TR1-13 on predetermined level.
Two-tube Drive and Control Circuit 340, comprise resistance R6-13, R9-13, R12-13, electric capacity C5-13, C12-13, the elements such as NPN type diode TR2-13, positive-negative-positive diode TR3-13, its operation principle is: the optocoupler OC1-13 conducting when output voltage is higher, make triode TR2-13, TR3-13 conducting respectively, accelerate metal-oxide-semiconductor TR1-13 and turn off.
Output short circuit protection circuit 350; it is arranged among the negative feedback loop of main power circuit 330; this output short circuit protection circuit comprises negative feedback winding P3-13, afterflow branch road, negative feedback winding leakage inductance absorbing circuit; afterflow branch road connects the Same Name of Ends of negative feedback winding P3-13, and negative feedback winding leakage inductance absorbing circuit connects the different name end of negative feedback winding P3-13.Specifically, output short circuit protection circuit 350 comprises feedback winding P3-13, resistance R1A-13, R1B-13, electric capacity C11-13, diode D3-13; This output short circuit protection circuit negative feedback winding P3-13 different name end is connected with R1A-13, R1-13; the R1A-13 other end is connected with R1B-13, C11-13; R1B-13, C11-13 other end ground connection; negative feedback winding P3-13 Same Name of Ends is connected with the negative electrode of C6-13, diode D3-13; the plus earth of diode D3-13; the C6-13 other end is connected with R11-13, the grid (G pole) of another termination metal-oxide-semiconductor of R11-13 TR1-13.The operation principle of this circuit is: when power supply output short-circuit, and R1A-13 absorbs the energy that feedback winding P3-13 leakage inductance stores fast, accelerates the damped oscillation of leakage inductance and electric capacity C11-13; In addition, R1B-13 shunts C11-13, reduces electric capacity both end voltage, thus reduces the driving voltage of metal-oxide-semiconductor.
Output filter circuit 360, comprises electric capacity C3-13, also can adopt other existing filter circuit, specifically can select by relevant technologies handbook.
Voltage stabilizing circuit 370, mainly comprises pressurizer ADJ, and it is connected to main power circuit and output short circuit protection circuit 350 and two-tube Drive and Control Circuit 340 by optocoupler OC1, does not repeat them here.
In the present embodiment; winding leakage inductance and C11-13, R1A-13 damped oscillation is fed back during output short circuit protection circuit; metal-oxide-semiconductor wink, speed was turned off; both the energy loss having decreased metal-oxide-semiconductor self additionally reduces the energy transmitted to secondary (output winding) on the former limit of transformer T1-13 (input winding), thus reaches short-circuit protection object.
Figure 14 ~ Figure 18 illustrates the circuit structure form of self-oscillation flyback converter output short circuit protection part in environmental monitoring station of the present invention power-supply system, wherein: Figure 14 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment five in environmental monitoring station of the present invention power-supply system; Figure 15 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment six in environmental monitoring station of the present invention power-supply system; Figure 16 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment seven in environmental monitoring station of the present invention power-supply system; Figure 17 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment eight in environmental monitoring station of the present invention power-supply system; Figure 18 is the output short circuit protection partial circuit figure of self-oscillation flyback converter embodiment nine in environmental monitoring station of the present invention power-supply system.
Be described further combined with Figure 14 ~ Figure 18 below, output short circuit protection circuit 350 part is wherein only shown, their connection is identical with Figure 13, and the identity element in the expression that wherein element number is identical and Figure 13, such as C6-13, C6-18 are identity element.
See Figure 14, Figure 15, provide other two kinds and export the self-oscillation flyback converter circuit being with short-circuit protection.The operation principle of circuit shown in they and Figure 13 is similar; its difference is only: the position of the R1A-15 in Figure 14 in the position of the R1A-14 of output short circuit protection circuit 350, Figure 15 in output short circuit protection circuit 350, changes compared with the position of the R1A-13 in output short circuit protection circuit in Figure 13 15.
See Figure 16, give the self-oscillation flyback converter circuit that another exports band short-circuit protection, the difference of itself and Figure 13 is: to eliminate in Figure 13 R1B-13 in output short circuit protection circuit 350 in Figure 16 in output short circuit protection circuit 350.The difference of its operation principle and Figure 13 is, during output short-circuit, C11-15 both end voltage does not have diverter branch, and namely C11-15 voltage is almost constant; R1A-15 short-circuit protection principle is similar with the R1A-13 in output short circuit protection circuit in Figure 13 350, repeats no more.
See Figure 17, Figure 18, provide the self-oscillation flyback converter circuit of two kinds of band short-circuit protections in addition.The operation principle of they and Figure 16 is similar; its difference is only: the position of R1A-18 in output short circuit protection circuit 350 in the position of R1A-17, Figure 18 in output short circuit protection circuit 350 in Figure 17, changes compared with the position of R1A-16 in output short circuit protection circuit in Figure 16 350.
The protective circuit part of above embodiment of the present invention to environmental monitoring station's power-supply system is improved, and the energy of this protective circuit part autophage is considerably less, thus can reduce short circuit loss further, effectively improves power-efficient.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.
Claims (10)
1. environmental monitoring station's power-supply system, comprise the electric energy access device, filter circuit of pressure-stabilizing and the self-oscillation flyback converter that connect successively, electric energy access device provides direct current to input electricity, through filter circuit of pressure-stabilizing voltage stabilizing and filtering, the electronic equipment that corresponding direct voltage is provided in environmental monitoring station is transformed to by self-oscillation flyback converter, wherein:
Electric energy access device comprises mains power supply, powered by wind energy device and electric energy switch, and mains power supply and powered by wind energy device are switched to utility mode or wind energy pattern by electric energy switch;
Mains power supply comprises civil power access terminal and AD/CD transducer, and civil power access terminal incoming transport electricity, is converted to direct current through AD/CD transducer, under utility mode, provides DC input voitage to self-oscillation flyback converter;
AD/CD transducer comprises rectification circuit and filter circuit, filter circuit comprises diode D3.4, diode D4.4, diode D8.4, diode D9.4, electric capacity C7.4 and electric capacity C9.4, the anode of diode D3.4 is connected with the output of rectification circuit, the negative electrode of diode D3.4 is connected with the negative electrode of diode D9.4, one end of electric capacity C7.4 is connected with the negative electrode of diode D3.4, the other end of electric capacity C7.4 is connected with the anode of diode D8.4 and the negative electrode of diode D4.4 respectively, the negative electrode of diode D8.4 is connected with the anode of diode D9.4, one end of electric capacity C9.4 is connected with the anode of diode D4.4, the other end of electric capacity C9.4 is connected with the anode of diode D9.4, the negative electrode of diode D9.4 is also connected with DC output end,
Powered by wind energy device comprises wind turbine, generator, rectifier, DC voltage booster circuit, inverter, battery controller, storage battery, system controller, lets out energy load controller, lets out composition such as energy load, brake device etc., wherein: wind turbine, generator, rectifier, DC voltage booster circuit, inverter are in turn connected into power supply main road, to power to AC load; Electric power storage controller, storage battery, inverter are in turn connected into accumulation of energy branch road, and this electric power storage controller controls rectifier and discharges to inverter to charge in batteries and control storage battery; Brake device acts on wind turbine line shaft; Let out energy load is connected to generator output through letting out energy load controller; System controller connects brake device respectively, lets out energy load controller and battery controller, brakes to control brake device, lets out and load can let out energy and charge in batteries; The collection signal of the access of this system controller inverter, storage battery and wind energy transducer, to the running status carrying out regulating wind power electric supply installation according to load condition, energy accumulating state and wind velocity condition;
Battery controller comprises charging circuit, discharge circuit, control circuit and lightning protection circuit, and charging circuit, discharge circuit and storage battery are in parallel, lightning protection circuit and storage battery series connection, and wherein lightning protection circuit is lightning protection inductance;
Storage battery comprises accumulator body, cell managing device, data/address bus, auxiliary power supply bus and auxiliary charging control line, and wherein the positive pole of accumulator body is connected with cell managing device respectively with negative pole; Cell managing device comprises the detection control unit be connected respectively with the positive pole of accumulator body and negative pole and the supplemental charging unit be connected respectively with negative pole with the positive pole of accumulator body, and detection control unit is connected with supplemental charging unit; Data/address bus is connected with detection control unit; Auxiliary power supply bus is connected with supplemental charging unit; Auxiliary charging control line is connected with the output of detection control unit; Detection control unit, for detecting the running status of accumulator body in real time, when the real-time voltage of accumulator body is less than threshold voltage, is charged to accumulator body by auxiliary power supply bus by supplemental charging unit;
Inverter comprises power tube driving chip and six power tubes, and power tube driving chip is connected to microcontroller circuit, so that the pulse width modulating signal exported according to microcontroller circuit, drives corresponding power tube alternate conduction and shutoff; Six power tubes are divided into three groups, and every group power control to cross streams exports, corresponding access diode between the source electrode of each power tube and drain electrode;
Self-oscillation flyback converter comprises input filter circuit, main power circuit, output filter circuit, sample circuit, error amplifying circuit, two-tube Drive and Control Circuit and soft starting circuit, direct current input is through input filter circuit, main power circuit, export after output filter circuit and obtain direct current output, the sampling current of output is through sample circuit, error amplifying circuit, after two-tube Drive and Control Circuit, negative feedback control is carried out to the main switch in main power circuit, soft starting circuit is connected to the output of input filter circuit, the soft starting circuit other end is connected to two-tube Drive and Control Circuit to realize soft start.
2. environmental monitoring station as claimed in claim 1 power-supply system, is characterized in that, in self-oscillation flyback converter:
Input filter circuit is the π type filter circuit comprising filter capacitor C0, C13 and filter inductance L0;
Main power circuit arranges transformer input winding P1, exports winding P2, metal-oxide-semiconductor TR1, current-limiting resistance R5, export rectifier diode D1 and realize the conversion of power supply energy, transmission and constrained input isolation, the grid of metal-oxide-semiconductor TR1 oppositely meets voltage-stabiliser tube Z4 to make the grid starting resistor strangulation of metal-oxide-semiconductor TR1 on predetermined level;
Two-tube Drive and Control Circuit comprises resistance R6, R9, R12, electric capacity C5, C12, NPN type diode TR2, positive-negative-positive diode TR3, the optocoupler OC1 conducting when output voltage is higher, makes triode TR2, TR3 conducting respectively, accelerates metal-oxide-semiconductor TR1 and turns off;
Output filter circuit is the filter circuit comprising electric capacity C3;
Soft starting circuit comprises divider resistance R10, R13, R14, start-up capacitance C9 and diode D4, and when accessing input voltage, electric current charges to start-up capacitance C9 through resistance R10, realizes start soft start function when start-up capacitance voltage reaches MOS threshold voltage.
3. environmental monitoring station as claimed in claim 2 power-supply system; it is characterized in that; self-oscillation flyback converter comprises output short circuit protection circuit; output short circuit protection circuit is arranged at the negative feedback winding output loop of the negative feedback loop in main power circuit, and the other end of output short circuit protection circuit is connected to two-tube Drive and Control Circuit.
4. environmental monitoring station as claimed in claim 3 power-supply system; it is characterized in that; self-oscillation flyback converter comprises the voltage stabilizing circuit containing pressurizer ADJ, to be connected to main power circuit and output short circuit protection circuit and two-tube Drive and Control Circuit by optocoupler OC1.
5. environmental monitoring station as claimed in claim 4 power-supply system, is characterized in that, output short circuit protection circuit comprises feedback winding P3, resistance R1A, R1B, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to the tie point of resistance R1A and resistance R1, and resistance R1A passes through and the resistance R1B connect, electric capacity C11 are connected to ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
6. environmental monitoring station as claimed in claim 4 power-supply system, is characterized in that, output short circuit protection circuit comprises feedback winding P3, resistance R1A, R1B, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1 by resistance R1A, accesses and the resistance R1B connect, electric capacity C11 between the tie point of resistance R1A and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
7. environmental monitoring station as claimed in claim 4 power-supply system, is characterized in that, output short circuit protection circuit comprises feedback winding P3, resistance R1A, R1B, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1, accesses resistance R1B between the tie point of negative feedback winding P3 different name end and resistance R1 and ground, and resistance R1B is with the resistance R1A be connected in series, electric capacity C11 and connect; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
8. environmental monitoring station as claimed in claim 4 power-supply system, is characterized in that, output short circuit protection circuit comprises feedback winding P3, resistance R1A, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1, serial capacitance C11, resistance R1A between the tie point of negative feedback winding P3 different name end and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
9. environmental monitoring station as claimed in claim 4 power-supply system, is characterized in that, output short circuit protection circuit comprises feedback winding P3, resistance R1A, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1, series resistor R1A, electric capacity C11 between the tie point of negative feedback winding P3 different name end and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
10. environmental monitoring station as claimed in claim 4 power-supply system, is characterized in that, output short circuit protection circuit comprises feedback winding P3, resistance R1A, electric capacity C11, diode D3; Negative feedback winding P3 different name end is connected to resistance R1 through resistance RA1, accesses electric capacity C11 between the tie point of resistance RA1 and resistance R1 and ground; Negative feedback winding P3 Same Name of Ends is connected with the negative electrode of electric capacity C6, diode D3, the plus earth of diode D3, and the electric capacity C6 other end is connected with resistance R11, the grid of another termination main power circuit metal-oxide-semiconductor of resistance R11 TR1.
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| CN201510400484.3A CN104935067A (en) | 2015-07-06 | 2015-07-06 | Environmental monitoring station power supply system |
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| CN105484941A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Wind power generation system |
| CN109494866A (en) * | 2018-10-16 | 2019-03-19 | 江苏万邦微电子有限公司 | A kind of power-supply management system |
| CN114825511A (en) * | 2022-03-24 | 2022-07-29 | 广州先觉电子信息股份有限公司 | Charge-discharge balancing device with new energy automobile battery pack monitoring system |
| CN115001294A (en) * | 2022-06-07 | 2022-09-02 | 中国人民解放军海军工程大学 | Circulating pulse high-power degaussing main power system |
| CN116087816A (en) * | 2023-03-14 | 2023-05-09 | 九源云(广州)智能科技有限公司 | Storage battery pack nuclear capacity device with alloy resistance load |
| CN115001294B (en) * | 2022-06-07 | 2024-07-12 | 中国人民解放军海军工程大学 | Circulating pulse high-power demagnetizing main power supply system |
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| CN201786566U (en) * | 2010-09-03 | 2011-04-06 | 恒天重工股份有限公司 | Off-grid perpendicular shaft wind-driven generator control system with continuous power supply |
| CN103680330A (en) * | 2012-09-07 | 2014-03-26 | 苏州翼上视觉品牌策划有限公司 | Electronic guidepost |
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| CN201786566U (en) * | 2010-09-03 | 2011-04-06 | 恒天重工股份有限公司 | Off-grid perpendicular shaft wind-driven generator control system with continuous power supply |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105484941A (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Wind power generation system |
| CN109494866A (en) * | 2018-10-16 | 2019-03-19 | 江苏万邦微电子有限公司 | A kind of power-supply management system |
| CN114825511A (en) * | 2022-03-24 | 2022-07-29 | 广州先觉电子信息股份有限公司 | Charge-discharge balancing device with new energy automobile battery pack monitoring system |
| CN115001294A (en) * | 2022-06-07 | 2022-09-02 | 中国人民解放军海军工程大学 | Circulating pulse high-power degaussing main power system |
| CN115001294B (en) * | 2022-06-07 | 2024-07-12 | 中国人民解放军海军工程大学 | Circulating pulse high-power demagnetizing main power supply system |
| CN116087816A (en) * | 2023-03-14 | 2023-05-09 | 九源云(广州)智能科技有限公司 | Storage battery pack nuclear capacity device with alloy resistance load |
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Application publication date: 20150923 |