CN103683297B - A kind of comprehensive power quality control circuit - Google Patents
A kind of comprehensive power quality control circuit Download PDFInfo
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- CN103683297B CN103683297B CN201310753267.3A CN201310753267A CN103683297B CN 103683297 B CN103683297 B CN 103683297B CN 201310753267 A CN201310753267 A CN 201310753267A CN 103683297 B CN103683297 B CN 103683297B
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Abstract
The invention discloses a kind of comprehensive power quality control circuit.This comprehensive power quality control circuit comprises rectification circuit, sample circuit, inverter circuit, output isolation transforming circuit, energy storage device and middle control circuit; Described rectification circuit outputs to inverter circuit after transferring alternating current to direct current and transfers alternating current to, and alternating current is outputted to electricity consumption end by exporting isolation transforming circuit; Described energy storage device when civil power power-off to described inverter circuit output current; Described middle control circuit judges to control energy storage device to described inverter circuit output current according to the sampling of sample circuit.The alternating current that electrical network inputs, by arranging rectification circuit and sample circuit, is carried out unified adjustment, obtains the stay-in-grade power supply of voltage and current by this programme, effective power quality improving load end and obtain, and ensures that the safe and effective of production is carried out further.
Description
Technical field
The present invention relates to electric energy management field, particularly relate to a kind of comprehensive power quality control circuit.
Background technology
The basic demand of power system operation be safe and reliable, the quality of power supply is high, good economy performance, and along with the change of operation states of electric power system and load in the circuit running of reality, the voltage value of power distribution network changes, in order to provide the electric energy of high-quality to user, the Comprehensive Control of the quality of power supply must be carried out.In recent years, various non-linear, impact and unbalanced load constantly access electrical network, cause power network current, voltage waveform distorts, cause the power quality problems such as grid voltage sags, these power quality problems increase line loss, make energy loss serious, the power system security accident caused thus is frequently existing.Therefore, the power quality problem such as voltage fluctuation, Voltage unbalance all has a negative impact to the safety and stability of electric power system and user.
Summary of the invention
The present invention proposes one and interchange is become direct current, then direct current is become interchange, thus the electric energy comprehensive quality control circuit of the quality problems of the voltage brought in elimination external electrical network, electric current.
For realizing above-mentioned design, the present invention by the following technical solutions:
A kind of comprehensive power quality control circuit, comprises rectification circuit, sample circuit, inverter circuit, output isolation transforming circuit, energy storage device and middle control circuit; Described rectification circuit outputs to inverter circuit after transferring alternating current to direct current and transfers alternating current to, and alternating current is outputted to electricity consumption end by exporting isolation transforming circuit; Described energy storage device when civil power power-off to described inverter circuit output current; Described middle control circuit judges to control energy storage device to described inverter circuit output current according to the sampling of sample circuit.
Wherein, also comprise circuit of power factor correction, described circuit of power factor correction is connected with inverter circuit and the control of control circuit in accepting, and when central control circuit judges that power factor is too low according to the sampling of sample circuit, controls circuit of power factor correction and carries out power factor compensation.
Wherein, described middle control circuit comprises the chip U18 that model is MC68HC908, model is the chip U15 of 24C02, electrochemical capacitor C8, electric capacity C109, electric capacity C110, electric capacity C47, electric capacity C46, electric capacity C51, electric capacity C121, electric capacity C120, electric capacity C49, electric capacity C201, electric capacity C108, electric capacity C50, electric capacity C72, resistance R187, resistance R307, resistance R108, resistance R186, resistance R304, resistance R305, resistance R306, resistance R162, resistance R163, resistance R170, resistance R171, resistance R172, resistance R164, resistance R165, resistance R167, resistance R282, resistance R188, crystal oscillator XL1, the anode of the pin 40 of wherein said chip U18, one end of electric capacity C109, electrochemical capacitor C8 all meets+5V, the other end of electric capacity C109, the equal ground connection of negative electrode of electrochemical capacitor C8, the pin 12 of chip U18 is connected with one end of electric capacity C110, the other end ground connection of electric capacity C110, the pin 35 of chip U18 is connected with one end of one end of resistance R305, electric capacity C47, the other end ground connection of electric capacity C47, pin 18 to the pin 24 of chip U18 is all connected with one end of resistance R186, the other end ground connection of resistance R186, the pin 32 of chip U18 is connected with one end of one end of resistance R304, electric capacity C46, the other end ground connection of electric capacity C46, the pin 28 of chip U18 is connected with one end of one end of resistance R306, electric capacity C51, the other end ground connection of electric capacity C51, the pin 10 of chip U18, pin 11, pin 41, pin 54 all ground connection, the pin 62 of chip U18 is connected with one end of one end of resistance R162, electric capacity C121, the other end ground connection of electric capacity C121, the pin 61 of chip U18 is connected with one end of resistance R163, and the other end of resistance R163 is connected with one end of resistance R170, the pin 60 of chip U18 is connected with one end of resistance R164, and the other end of resistance R164 is connected with one end of resistance R171, the pin 59 of chip U18 is connected with one end of resistance R165, and the other end of resistance R165 is connected with one end of resistance R172, the other end of the other end of resistance R170, the other end of resistance R171, resistance R172 all meets+5V, the pin 58 of chip U18 is connected with one end of resistance R167, the pin 55 of chip U18 is connected with one end of one end of electric capacity C120, resistance R282, the other end ground connection of electric capacity C120, one end of the pin 53 of chip U18 and one end of resistance R108, crystal oscillator XL1, one end of electric capacity C49 is connected, the pin 52 of chip U18 is connected with the other end of the other end of resistance R108, crystal oscillator XL1, one end of electric capacity C50, the other end of electric capacity C49, the equal ground connection of the other end of electric capacity C50, the pin 51 of chip U18 is connected with one end of electric capacity C201, the other end ground connection of electric capacity C201, the pin 49 of chip U18 is connected with one end of one end of resistance R307, electric capacity C108, the other end ground connection of electric capacity C108, the pin 48 of chip U18 is connected with one end of one end of electric capacity C72, resistance R187, the other end ground connection of electric capacity C72, another termination+5V of resistance R187, the pin 45 of chip U18 is connected with one end of the pin 5 of chip U15, resistance R188, another termination+5V of resistance R188, the pin 42 of chip U18 is connected with the pin 6 of chip U15, pin 1 to the pin 4 of chip U15, pin 7 all ground connection, the pin 8 of chip U15 meets+5V.
Wherein, the parameter of described electrochemical capacitor C8 is 50V/10 μ F; The parameter of electric capacity C109, electric capacity C110, electric capacity C201, electric capacity C108, electric capacity C72 is 100nF; The parameter of electric capacity C47, electric capacity C46, electric capacity C51 is 1nF; The parameter of electric capacity C121, electric capacity C120 is 10nF; The parameter of electric capacity C49, electric capacity C50 is 39pF; The resistance of resistance R187, resistance R186 is 5.1K Ω; The resistance of resistance R307 is 510 Ω; The resistance of resistance R108 is 22M Ω; The resistance of resistance R282, resistance R170, resistance R171, resistance R172, resistance R162, resistance R188 is 10K Ω; The resistance of resistance R304, resistance R305, resistance R306 is 100 Ω; The resistance of resistance R163, resistance R164, resistance R165, resistance R167 is 1K Ω; The parameter of crystal oscillator XL1 is 4.9152MHz.
Wherein, also comprise communicating circuit, described communicating circuit is connected with described middle control circuit, and described middle control circuit, by described communicating circuit transtation mission circuit state, receives control command.
Wherein, described communicating circuit comprises the chip U7 that model is 4066, resistance R4, resistance R302, resistance R303, resistance R301, resistance R49, resistance R48, resistance R55, resistance R59, resistance R54, resistance R53, resistance R50, resistance R51, resistance R52, resistance R57, model is the transformer TX1 of EE16, 3 models are the photoelectrical coupler U3 of NEC2561, photoelectrical coupler U4, photoelectrical coupler U26, electrochemical capacitor C1, electrochemical capacitor C2, electrochemical capacitor C3, electrochemical capacitor C4, diode D1, diode D7, diode D8, diode D9, triode Q7, triode Q6, specification is the interface CN5 of DB9, specification is the interface CN7 of ICD10, one end of described resistance R4 is connected with the pin 47 of chip U18, and the other end is connected with photoelectrical coupler U4 pin 1, pin 2 ground connection of photoelectrical coupler U4, the pin 3 of photoelectrical coupler U4 connects power cathode, and the pin 4 of photoelectrical coupler U4 is connected with the pin 10 of one end of resistance R48, chip U7, the pin 4 of chip U7, the positive pole of another termination power of resistance R48, the pin 26 of the one chip termination U18 of resistance R302 is connected, and the other end is connected with the pin 1 of photoelectrical coupler U26, pin 2 ground connection of photoelectrical coupler U26, the pin 3 of photoelectrical coupler U26 connects power cathode, and the pin 4 of photoelectrical coupler U26 is connected with the pin 9 of one end of resistance R303, interface CN5, another termination positive source of resistance R303, one termination+the 5V of resistance R301, the other end is connected with the pin 4 of photoelectrical coupler U3, the pin 46 of chip U18, the pin 3 of photoelectrical coupler U3 and pin 2 ground connection, the pin 1 of photoelectrical coupler U3 is connected with one end of resistance R49, the other end of resistance R49 is connected with the pin 2 of chip U7, pin 8, the pin 9 of chip U7 is connected with the pin 3 of interface CN7, the pin 6 of chip U7 is connected with one end of the pin 12 of chip U7, resistance R55, the collector electrode of triode Q6, the emitter of triode Q6 connects the negative pole of power supply, another termination positive source of resistance R55, the pin 1 of chip U7 is connected with the pin 6 of the pin 3 of interface CN5, interface CN7, one end of the pin 13 of chip U7 and the pin 5 of chip U7, resistance R59, one end of resistance R54, the collector electrode of triode Q7 are connected, the other end of resistance R59 is connected with the base stage of triode Q6, the emitter of triode Q7, one end of resistance R52 all connect power cathode, and the other end of resistance R52 is connected with one end of the base stage of triode Q7, resistance R51, the other end of resistance R51 is connected with the pin 8 of interface CN7, the pin 3 of chip U7 is connected with the pin 5 of the pin 7 of interface CN5, interface CN7, the equal ground connection of negative electrode of one end of resistance R57, the anode of electrochemical capacitor C4, diode D9, the pin 1 of the other end of resistance R57, the negative electrode of electrochemical capacitor C4, transformer TX1 all meets-8V, the anode of diode D9 is connected with the pin 2 of transformer TX1, the pin 10 of transformer TX1 is connected with the anode of diode D8, the negative electrode of diode D8, the positive pole of electrochemical capacitor C3, one end of resistance R53, the pin 10 of interface CN7 all connect the positive pole of power supply, the pin 1 of the anode of the pin 9 of transformer TX1, the negative electrode of electrochemical capacitor C3, electrochemical capacitor C2, the pin 5 of interface CN5, interface CN7, the pin 9 of interface CN7 be ground connection all, the other end of resistance R53, the negative electrode of electric capacity C2, the anode of diode D7, the pin 7 of interface CN7 all connect the negative pole of power supply, the pin 7 of transformer TX1 is connected with the anode of diode D1, the negative electrode of diode D1 is connected with one end of the negative electrode of electrochemical capacitor C1, resistance R50, the pin 2 of interface CN7, pin 6 all ground connection of the other end of resistance R50, the anode of electrochemical capacitor C1, transformer TX1.
Wherein, the resistance of described resistance R4, resistance R302 is 510 Ω; The resistance of resistance R303, resistance R301, resistance R49, resistance R48 is 2K Ω; The resistance of resistance R55, resistance R54, resistance R53, resistance R50, resistance R52, resistance R57 is 10K Ω; The resistance of resistance R59 is 49.9K Ω; , resistance R51 resistance be 4.99K Ω; The parameter of electrochemical capacitor C1 is 35V/220 μ F; The parameter of electrochemical capacitor C2 is 50V/10 μ F; The parameter of electrochemical capacitor C3 is 50V/10 μ F; The parameter of electrochemical capacitor C4 is 50V/22 μ F; , diode D1 model be 1N4937; The model of diode D7, diode D8, diode D9 is 1N4148; , triode Q7 model be PN2222A; The model of triode Q6 is 2N2222A.
Wherein, also comprise static circuit, one end input AC civil power of described static circuit, the other end is connected with the input of described output isolation transforming circuit, powers to electricity consumption end by exporting isolation transforming circuit.
Wherein, also comprise repair circuit, one end input AC civil power of described repair circuit, the other end is connected with the input of described output isolation transforming circuit, when circuit keeps in repair, repair circuit is started working, and powers to electricity consumption end by exporting isolation transforming circuit.
Beneficial effect of the present invention is: by arranging rectification circuit and sample circuit, the alternating current that electrical network inputs is carried out unified adjustment, obtain the stay-in-grade power supply of voltage and current, effective power quality improving load end and obtain, ensure that the safe and effective of production is carried out further.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing the embodiment of the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the embodiment of the present invention and these accompanying drawings.
Fig. 1 is the topological diagram of a kind of comprehensive power quality control circuit that the embodiment of the present invention provides.
Fig. 2 is the middle control chip pin schematic diagram of the middle control circuit of a kind of comprehensive power quality control circuit that the embodiment of the present invention provides.
Fig. 3 is the partial circuit connection diagram of the middle control chip of the middle control circuit of a kind of comprehensive power quality control circuit that the embodiment of the present invention provides.
Fig. 4 is another part circuit connection diagram of the middle control chip of the middle control circuit of a kind of comprehensive power quality control circuit that the embodiment of the present invention provides.
Fig. 5 is the circuit theory diagrams of the communicating circuit of the middle control circuit of a kind of comprehensive power quality control circuit that the embodiment of the present invention provides.
Embodiment
The technical problem solved for making the present invention, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1 to Fig. 5, it is topological diagram, the middle control chip pin schematic diagram of middle control circuit 130, the partial circuit connection diagram of middle control chip, another part circuit connection diagram of middle control chip, the circuit theory diagrams of communicating circuit of a kind of comprehensive power quality control circuit that the embodiment of the present invention provides respectively.This circuit is mainly used in controlling power supply quality in industrial processes.As shown in the figure, a kind of comprehensive power quality control circuit, comprises rectification circuit 110, sample circuit 190, inverter circuit 120, exports isolation transforming circuit 150, energy storage device 140 and middle control circuit 130; Described rectification circuit 110 outputs to inverter circuit 120 after transferring alternating current to direct current and transfers alternating current to, and alternating current is outputted to electricity consumption end by exporting isolation transforming circuit 150; Described energy storage device 140 when civil power power-off to described inverter circuit 120 output current; Described middle control circuit 130 judges to control energy storage device 140 to described inverter circuit 120 output current according to the sampling of sample circuit 190.
By arranging rectification circuit 110 and sample circuit 190, by AC power 100A, mainly carry out unified adjustment from the alternating current of electrical network input, obtain the stay-in-grade power supply of voltage and current, then load circuit 100B is transported to, the power quality that effective raising load end obtains, ensures that the safe and effective of production is carried out further.
Preferably, also comprise circuit of power factor correction 160, described circuit of power factor correction 160 is connected with inverter circuit 120 and the control of control circuit 130 in accepting, when central control circuit 130 judges that power factor is too low according to the sampling of sample circuit 190, control circuit of power factor correction 160 and carry out power factor compensation.
Preferably, described middle control circuit 130 comprises the chip U18 that model is MC68HC908, model is the chip U15 of 24C02, electrochemical capacitor C8, electric capacity C109, electric capacity C110, electric capacity C47, electric capacity C46, electric capacity C51, electric capacity C121, electric capacity C120, electric capacity C49, electric capacity C201, electric capacity C108, electric capacity C50, electric capacity C72, resistance R187, resistance R307, resistance R108, resistance R186, resistance R304, resistance R305, resistance R306, resistance R162, resistance R163, resistance R170, resistance R171, resistance R172, resistance R164, resistance R165, resistance R167, resistance R282, resistance R188, crystal oscillator XL1, the anode of the pin 40 of wherein said chip U18, one end of electric capacity C109, electrochemical capacitor C8 all meets+5V, the other end of electric capacity C109, the equal ground connection of negative electrode of electrochemical capacitor C8, the pin 12 of chip U18 is connected with one end of electric capacity C110, the other end ground connection of electric capacity C110, the pin 35 of chip U18 is connected with one end of one end of resistance R305, electric capacity C47, the other end ground connection of electric capacity C47, pin 18 to the pin 24 of chip U18 is all connected with one end of resistance R186, the other end ground connection of resistance R186, the pin 32 of chip U18 is connected with one end of one end of resistance R304, electric capacity C46, the other end ground connection of electric capacity C46, the pin 28 of chip U18 is connected with one end of one end of resistance R306, electric capacity C51, the other end ground connection of electric capacity C51, the pin 10 of chip U18, pin 11, pin 41, pin 54 all ground connection, the pin 62 of chip U18 is connected with one end of one end of resistance R162, electric capacity C121, the other end ground connection of electric capacity C121, the pin 61 of chip U18 is connected with one end of resistance R163, and the other end of resistance R163 is connected with one end of resistance R170, the pin 60 of chip U18 is connected with one end of resistance R164, and the other end of resistance R164 is connected with one end of resistance R171, the pin 59 of chip U18 is connected with one end of resistance R165, and the other end of resistance R165 is connected with one end of resistance R172, the other end of the other end of resistance R170, the other end of resistance R171, resistance R172 all meets+5V, the pin 58 of chip U18 is connected with one end of resistance R167, the pin 55 of chip U18 is connected with one end of one end of electric capacity C120, resistance R282, the other end ground connection of electric capacity C120, one end of the pin 53 of chip U18 and one end of resistance R108, crystal oscillator XL1, one end of electric capacity C49 is connected, the pin 52 of chip U18 is connected with the other end of the other end of resistance R108, crystal oscillator XL1, one end of electric capacity C50, the other end of electric capacity C49, the equal ground connection of the other end of electric capacity C50, the pin 51 of chip U18 is connected with one end of electric capacity C201, the other end ground connection of electric capacity C201, the pin 49 of chip U18 is connected with one end of one end of resistance R307, electric capacity C108, the other end ground connection of electric capacity C108, the pin 48 of chip U18 is connected with one end of one end of electric capacity C72, resistance R187, the other end ground connection of electric capacity C72, another termination+5V of resistance R187, the pin 45 of chip U18 is connected with one end of the pin 5 of chip U15, resistance R188, another termination+5V of resistance R188, the pin 42 of chip U18 is connected with the pin 6 of chip U15, pin 1 to the pin 4 of chip U15, pin 7 all ground connection, the pin 8 of chip U15 meets+5V.
Further, the parameter of described electrochemical capacitor C8 is 50V/10 μ F; The parameter of electric capacity C109, electric capacity C110, electric capacity C201, electric capacity C108, electric capacity C72 is 100AnF; The parameter of electric capacity C47, electric capacity C46, electric capacity C51 is 1nF; The parameter of electric capacity C121, electric capacity C120 is 10nF; The parameter of electric capacity C49, electric capacity C50 is 39pF; The resistance of resistance R187, resistance R186 is 5.1K Ω; The resistance of resistance R307 is 510 Ω; The resistance of resistance R108 is 22M Ω; The resistance of resistance R282, resistance R170, resistance R171, resistance R172, resistance R162, resistance R188 is 10K Ω; The resistance of resistance R304, resistance R305, resistance R306 is 100A Ω; The resistance of resistance R163, resistance R164, resistance R165, resistance R167 is 1K Ω; The parameter of crystal oscillator XL1 is 4.9152MHz.
MC68HC908 chip processes the signal gathered in circuit, and 24C02 chip stores related data.
Further, also comprise communicating circuit, described communicating circuit is connected with described middle control circuit 130, and described middle control circuit 130, by described communicating circuit transtation mission circuit state, receives control command.
Preferably, described communicating circuit comprises the chip U7 that model is 4066, resistance R4, resistance R302, resistance R303, resistance R301, resistance R49, resistance R48, resistance R55, resistance R59, resistance R54, resistance R53, resistance R50, resistance R51, resistance R52, resistance R57, model is the transformer TX1 of EE16, 3 models are the photoelectrical coupler U3 of NEC2561, photoelectrical coupler U4, photoelectrical coupler U26, electrochemical capacitor C1, electrochemical capacitor C2, electrochemical capacitor C3, electrochemical capacitor C4, diode D1, diode D7, diode D8, diode D9, triode Q7, triode Q6, specification is the interface CN5 of DB9, specification is the interface CN7 of ICD10, one end of described resistance R4 is connected with the pin 47 of chip U18, and the other end is connected with photoelectrical coupler U4 pin 1, pin 2 ground connection of photoelectrical coupler U4, the pin 3 of photoelectrical coupler U4 connects power cathode, and the pin 4 of photoelectrical coupler U4 is connected with the pin 10 of one end of resistance R48, chip U7, the pin 4 of chip U7, the positive pole of another termination power of resistance R48, the pin 26 of the one chip termination U18 of resistance R302 is connected, and the other end is connected with the pin 1 of photoelectrical coupler U26, pin 2 ground connection of photoelectrical coupler U26, the pin 3 of photoelectrical coupler U26 connects power cathode, and the pin 4 of photoelectrical coupler U26 is connected with the pin 9 of one end of resistance R303, interface CN5, another termination positive source of resistance R303, one termination+the 5V of resistance R301, the other end is connected with the pin 4 of photoelectrical coupler U3, the pin 46 of chip U18, the pin 3 of photoelectrical coupler U3 and pin 2 ground connection, the pin 1 of photoelectrical coupler U3 is connected with one end of resistance R49, the other end of resistance R49 is connected with the pin 2 of chip U7, pin 8, the pin 9 of chip U7 is connected with the pin 3 of interface CN7, the pin 6 of chip U7 is connected with one end of the pin 12 of chip U7, resistance R55, the collector electrode of triode Q6, the emitter of triode Q6 connects the negative pole of power supply, another termination positive source of resistance R55, the pin 1 of chip U7 is connected with the pin 6 of the pin 3 of interface CN5, interface CN7, one end of the pin 13 of chip U7 and the pin 5 of chip U7, resistance R59, one end of resistance R54, the collector electrode of triode Q7 are connected, the other end of resistance R59 is connected with the base stage of triode Q6, the emitter of triode Q7, one end of resistance R52 all connect power cathode, and the other end of resistance R52 is connected with one end of the base stage of triode Q7, resistance R51, the other end of resistance R51 is connected with the pin 8 of interface CN7, the pin 3 of chip U7 is connected with the pin 5 of the pin 7 of interface CN5, interface CN7, the equal ground connection of negative electrode of one end of resistance R57, the anode of electrochemical capacitor C4, diode D9, the pin 1 of the other end of resistance R57, the negative electrode of electrochemical capacitor C4, transformer TX1 all meets-8V, the anode of diode D9 is connected with the pin 2 of transformer TX1, the pin 10 of transformer TX1 is connected with the anode of diode D8, the negative electrode of diode D8, the positive pole of electrochemical capacitor C3, one end of resistance R53, the pin 10 of interface CN7 all connect the positive pole of power supply, the pin 1 of the anode of the pin 9 of transformer TX1, the negative electrode of electrochemical capacitor C3, electrochemical capacitor C2, the pin 5 of interface CN5, interface CN7, the pin 9 of interface CN7 be ground connection all, the other end of resistance R53, the negative electrode of electric capacity C2, the anode of diode D7, the pin 7 of interface CN7 all connect the negative pole of power supply, the pin 7 of transformer TX1 is connected with the anode of diode D1, the negative electrode of diode D1 is connected with one end of the negative electrode of electrochemical capacitor C1, resistance R50, the pin 2 of interface CN7, pin 6 all ground connection of the other end of resistance R50, the anode of electrochemical capacitor C1, transformer TX1.
Wherein, the resistance of described resistance R4, resistance R302 is 510 Ω; The resistance of resistance R303, resistance R301, resistance R49, resistance R48 is 2K Ω; The resistance of resistance R55, resistance R54, resistance R53, resistance R50, resistance R52, resistance R57 is 10K Ω; The resistance of resistance R59 is 49.9K Ω; , resistance R51 resistance be 4.99K Ω; The parameter of electrochemical capacitor C1 is 35V/220 μ F; The parameter of electrochemical capacitor C2 is 50V/10 μ F; The parameter of electrochemical capacitor C3 is 50V/10 μ F; The parameter of electrochemical capacitor C4 is 50V/22 μ F; , diode D1 model be 1N4937; The model of diode D7, diode D8, diode D9 is 1N4148; , triode Q7 model be PN2222A; The model of triode Q6 is 2N2222A.
CD4066 is four bilateral analog switch, the main multiplexing being used as analog or digital signal.There are 4 independently analog switches each encapsulation inside of CD4066, and each analog switch has input, output, control three terminals, wherein input and output interchangeable.When control end adds high level, switch conduction; The switch cut-off when control end adds low level.During analog switch conducting, conducting resistance is tens ohm; During analog switch cut-off, present very high impedance, can regard as open circuit.Analog switch can transmission of digital signals and analog signal, and the upper limiting frequency of the analog signal that can transmit is 40MHz.The crosstalk of each switch room is very little, and representative value is-50dB.
Preferably, also comprise static circuit 170, one end input AC civil power of described static circuit 170, the other end is connected with the input of described output isolation transforming circuit 150, powers to electricity consumption end by exporting isolation transforming circuit 150.
Preferably, also comprise repair circuit 180, one end input AC civil power of described repair circuit 180, the other end is connected with the input of described output isolation transforming circuit 150, when circuit keeps in repair, repair circuit 180 is started working, and powers to electricity consumption end by exporting isolation transforming circuit.
Static circuit 170 and repair circuit 180 are not the circuit that normality uses, when providing the main line of high-quality power supply abnormal, powered by static circuit 170, and repair circuit 180 is the 3rd selections in circuit use procedure, when two other circuit is all abnormal, need to keep in repair it, now repair circuit 180 is powered to load end by load circuit 100B.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (8)
1. a comprehensive power quality control circuit, is characterized in that, comprises rectification circuit, sample circuit, inverter circuit, output isolation transforming circuit, energy storage device and middle control circuit; Described rectification circuit outputs to inverter circuit after transferring alternating current to direct current and transfers alternating current to, and alternating current is outputted to electricity consumption end by exporting isolation transforming circuit; Described energy storage device when civil power power-off to described inverter circuit output current; Described middle control circuit judges to control energy storage device to described inverter circuit output current according to the sampling of sample circuit;
Described middle control circuit comprises the chip U18 that model is MC68HC908, model is the chip U15 of 24C02, electrochemical capacitor C8, electric capacity C109, electric capacity C110, electric capacity C47, electric capacity C46, electric capacity C51, electric capacity C121, electric capacity C120, electric capacity C49, electric capacity C201, electric capacity C108, electric capacity C50, electric capacity C72, resistance R187, resistance R307, resistance R108, resistance R186, resistance R304, resistance R305, resistance R306, resistance R162, resistance R163, resistance R170, resistance R171, resistance R172, resistance R164, resistance R165, resistance R167, resistance R282, resistance R188, crystal oscillator XL1, the anode of the pin 40 of wherein said chip U18, one end of electric capacity C109, electrochemical capacitor C8 all meets+5V, the other end of electric capacity C109, the equal ground connection of negative electrode of electrochemical capacitor C8, the pin 12 of chip U18 is connected with one end of electric capacity C110, the other end ground connection of electric capacity C110, the pin 35 of chip U18 is connected with one end of one end of resistance R305, electric capacity C47, the other end ground connection of electric capacity C47, pin 18 to the pin 24 of chip U18 is all connected with one end of resistance R186, the other end ground connection of resistance R186, the pin 32 of chip U18 is connected with one end of one end of resistance R304, electric capacity C46, the other end ground connection of electric capacity C46, the pin 28 of chip U18 is connected with one end of one end of resistance R306, electric capacity C51, the other end ground connection of electric capacity C51, the pin 10 of chip U18, pin 11, pin 41, pin 54 all ground connection, the pin 62 of chip U18 is connected with one end of one end of resistance R162, electric capacity C121, the other end ground connection of electric capacity C121, the pin 61 of chip U18 is connected with one end of resistance R163, and the other end of resistance R163 is connected with one end of resistance R170, the pin 60 of chip U18 is connected with one end of resistance R164, and the other end of resistance R164 is connected with one end of resistance R171, the pin 59 of chip U18 is connected with one end of resistance R165, and the other end of resistance R165 is connected with one end of resistance R172, the other end of the other end of resistance R170, the other end of resistance R171, resistance R172 all meets+5V, the pin 58 of chip U18 is connected with one end of resistance R167, the pin 55 of chip U18 is connected with one end of one end of electric capacity C120, resistance R282, the other end ground connection of electric capacity C120, one end of the pin 53 of chip U18 and one end of resistance R108, crystal oscillator XL1, one end of electric capacity C49 is connected, the pin 52 of chip U18 is connected with the other end of the other end of resistance R108, crystal oscillator XL1, one end of electric capacity C50, the other end of electric capacity C49, the equal ground connection of the other end of electric capacity C50, the pin 51 of chip U18 is connected with one end of electric capacity C201, the other end ground connection of electric capacity C201, the pin 49 of chip U18 is connected with one end of one end of resistance R307, electric capacity C108, the other end ground connection of electric capacity C108, the pin 48 of chip U18 is connected with one end of one end of electric capacity C72, resistance R187, the other end ground connection of electric capacity C72, another termination+5V of resistance R187, the pin 45 of chip U18 is connected with one end of the pin 5 of chip U15, resistance R188, another termination+5V of resistance R188, the pin 42 of chip U18 is connected with the pin 6 of chip U15, pin 1 to the pin 4 of chip U15, pin 7 all ground connection, the pin 8 of chip U15 meets+5V.
2. a kind of comprehensive power quality control circuit according to claim 1, it is characterized in that, also comprise circuit of power factor correction, described circuit of power factor correction is connected with inverter circuit and the control of control circuit in accepting, when central control circuit judges that power factor is too low according to the sampling of sample circuit, control circuit of power factor correction and carry out power factor compensation.
3. a kind of comprehensive power quality control circuit according to claim 1, is characterized in that, the parameter of described electrochemical capacitor C8 is 50V/10 μ F; The parameter of electric capacity C109, electric capacity C110, electric capacity C201, electric capacity C108, electric capacity C72 is 100nF; The parameter of electric capacity C47, electric capacity C46, electric capacity C51 is 1nF; The parameter of electric capacity C121, electric capacity C120 is 10nF; The parameter of electric capacity C49, electric capacity C50 is 39pF; The resistance of resistance R187, resistance R186 is 5.1K Ω; The resistance of resistance R307 is 510 Ω; The resistance of resistance R108 is 22M Ω; The resistance of resistance R282, resistance R170, resistance R171, resistance R172, resistance R162, resistance R188 is 10K Ω; The resistance of resistance R304, resistance R305, resistance R306 is 100 Ω; The resistance of resistance R163, resistance R164, resistance R165, resistance R167 is 1K Ω; The parameter of crystal oscillator XL1 is 4.9152MHz.
4. a kind of comprehensive power quality control circuit according to claim 1, is characterized in that, also comprise communicating circuit, and described communicating circuit is connected with described middle control circuit, and described middle control circuit, by described communicating circuit transtation mission circuit state, receives control command.
5. a kind of comprehensive power quality control circuit according to claim 4, it is characterized in that, described communicating circuit comprises the chip U7 that model is 4066, resistance R4, resistance R302, resistance R303, resistance R301, resistance R49, resistance R48, resistance R55, resistance R59, resistance R54, resistance R53, resistance R50, resistance R51, resistance R52, resistance R57, model is the transformer TX1 of EE16, 3 models are the photoelectrical coupler U3 of NEC2561, photoelectrical coupler U4, photoelectrical coupler U26, electrochemical capacitor C1, electrochemical capacitor C2, electrochemical capacitor C3, electrochemical capacitor C4, diode D1, diode D7, diode D8, diode D9, triode Q7, triode Q6, specification is the interface CN5 of DB9, specification is the interface CN7 of ICD10, one end of described resistance R4 is connected with the pin 47 of chip U18, and the other end is connected with photoelectrical coupler U4 pin 1, pin 2 ground connection of photoelectrical coupler U4, the pin 3 of photoelectrical coupler U4 connects power cathode, and the pin 4 of photoelectrical coupler U4 is connected with the pin 10 of one end of resistance R48, chip U7, the pin 4 of chip U7, the positive pole of another termination power of resistance R48, the pin 26 of the one chip termination U18 of resistance R302 is connected, and the other end is connected with the pin 1 of photoelectrical coupler U26, pin 2 ground connection of photoelectrical coupler U26, the pin 3 of photoelectrical coupler U26 connects power cathode, and the pin 4 of photoelectrical coupler U26 is connected with the pin 9 of one end of resistance R303, interface CN5, another termination positive source of resistance R303, one termination+the 5V of resistance R301, the other end is connected with the pin 4 of photoelectrical coupler U3, the pin 46 of chip U18, the pin 3 of photoelectrical coupler U3 and pin 2 ground connection, the pin 1 of photoelectrical coupler U3 is connected with one end of resistance R49, the other end of resistance R49 is connected with the pin 2 of chip U7, pin 8, the pin 9 of chip U7 is connected with the pin 3 of interface CN7, the pin 6 of chip U7 is connected with one end of the pin 12 of chip U7, resistance R55, the collector electrode of triode Q6, the emitter of triode Q6 connects the negative pole of power supply, another termination positive source of resistance R55, the pin 1 of chip U7 is connected with the pin 6 of the pin 3 of interface CN5, interface CN7, one end of the pin 13 of chip U7 and the pin 5 of chip U7, resistance R59, one end of resistance R54, the collector electrode of triode Q7 are connected, the other end of resistance R59 is connected with the base stage of triode Q6, the emitter of triode Q7, one end of resistance R52 all connect power cathode, and the other end of resistance R52 is connected with one end of the base stage of triode Q7, resistance R51, the other end of resistance R51 is connected with the pin 8 of interface CN7, the pin 3 of chip U7 is connected with the pin 5 of the pin 7 of interface CN5, interface CN7, the equal ground connection of negative electrode of one end of resistance R57, the anode of electrochemical capacitor C4, diode D9, the pin 1 of the other end of resistance R57, the negative electrode of electrochemical capacitor C4, transformer TX1 all meets-8V, the anode of diode D9 is connected with the pin 2 of transformer TX1, the pin 10 of transformer TX1 is connected with the anode of diode D8, the negative electrode of diode D8, the positive pole of electrochemical capacitor C3, one end of resistance R53, the pin 10 of interface CN7 all connect the positive pole of power supply, the pin 1 of the anode of the pin 9 of transformer TX1, the negative electrode of electrochemical capacitor C3, electrochemical capacitor C2, the pin 5 of interface CN5, interface CN7, the pin 9 of interface CN7 be ground connection all, the other end of resistance R53, the negative electrode of electric capacity C2, the anode of diode D7, the pin 7 of interface CN7 all connect the negative pole of power supply, the pin 7 of transformer TX1 is connected with the anode of diode D1, the negative electrode of diode D1 is connected with one end of the negative electrode of electrochemical capacitor C1, resistance R50, the pin 2 of interface CN7, pin 6 all ground connection of the other end of resistance R50, the anode of electrochemical capacitor C1, transformer TX1.
6. a kind of comprehensive power quality control circuit according to claim 5, is characterized in that, the resistance of described resistance R4, resistance R302 is 510 Ω; The resistance of resistance R303, resistance R301, resistance R49, resistance R48 is 2K Ω; The resistance of resistance R55, resistance R54, resistance R53, resistance R50, resistance R52, resistance R57 is 10K Ω; The resistance of resistance R59 is 49.9K Ω; , resistance R51 resistance be 4.99K Ω; The parameter of electrochemical capacitor C1 is 35V/220 μ F; The parameter of electrochemical capacitor C2 is 50V/10 μ F; The parameter of electrochemical capacitor C3 is 50V/10 μ F; The parameter of electrochemical capacitor C4 is 50V/22 μ F; , diode D1 model be 1N4937; The model of diode D7, diode D8, diode D9 is 1N4148; , triode Q7 model be PN2222A; The model of triode Q6 is 2N2222A.
7. a kind of comprehensive power quality control circuit according to claim 1, it is characterized in that, also comprise static circuit, one end input AC civil power of described static circuit, the other end is connected with the input of described output isolation transforming circuit, powers to electricity consumption end by exporting isolation transforming circuit.
8. a kind of comprehensive power quality control circuit according to claim 1, it is characterized in that, also comprise repair circuit, one end input AC civil power of described repair circuit, the other end is connected with the input of described output isolation transforming circuit, when circuit keeps in repair, repair circuit is started working, and powers to electricity consumption end by exporting isolation transforming circuit.
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