CN104684220A - Alternating current power regulator suitable for time-interval dimming, operating method and street lamp - Google Patents
Alternating current power regulator suitable for time-interval dimming, operating method and street lamp Download PDFInfo
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- CN104684220A CN104684220A CN201510104910.9A CN201510104910A CN104684220A CN 104684220 A CN104684220 A CN 104684220A CN 201510104910 A CN201510104910 A CN 201510104910A CN 104684220 A CN104684220 A CN 104684220A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an alternating current power regulator suitable for time-interval dimming, an operating method and a street lamp. The alternating current power regulator comprises a power converting circuit and a driving control unit suitable for collecting input mains supply cycle, wherein a clock module is arranged in the driving control unit; the driving control unit is suitable for controlling circuit commutation according to the main supply cycle through the power converting circuit and controlling the output voltage of the power converting circuit according to time interval, so as to realize time-interval dimming control. Aiming at the problems of the existing products on the market currently and the phenomena of poor reliability and short service life, the alternating current power regulator realizes alternating current voltage reduction and regulation control in a time-interval way, so as to solve street lamp intelligent time-interval dimming control, can obviously improve the system reliability and stability, achieves the purpose of increasing the overall service life of a system, and finally achieves the purpose of stabilizing street lamp illumination and reducing electrical energy consumption.
Description
Technical field
The invention belongs to power converter or field of power electronics, regulate street lamp power supply, road lamp power supply voltage by timesharing, reach the Intelligent adjustment to street lamp brightness, finally reach the object of saves energy loss.
Background technology
Current most of street lamp is that sunset is turned on light sunrise bright light in the prior art, unrealized timesharing brightness Based Intelligent Control.Tradition Time-sharing control regulates transformer tapping to realize the adjustment of street lamp input voltage by the time relay and reaches street lamp brightness regulation, along with the development of semiconductor switch technology, present market engendered by the control realization of the semiconductor device such as IGBT to the Based Intelligent Control of street lamp, finally reach the object of energy savings.
There is following shortcoming in prior art, namely street lamp is not carried out to the Based Intelligent Control of timesharing brightness, can cause great energy waste; But traditional control mode not only control mode is single but also impact comparatively large to street lamp, cause street lamp to shorten useful life; Therefore, the intelligent controller for road lamp that existing market occurs is shorter for most useful life, and repair rate is high.
Summary of the invention
The object of this invention is to provide a kind of AC electric power regulator and method of work thereof, to solve the technical problem of street lamp Intelligent time-sharing brightness adjustment control.
In order to solve the problems of the technologies described above, the invention provides a kind of AC electric power regulator, described AC electric power regulator is connected with load by output filter circuit, and described AC electric power regulator comprises: power conversion circuit and the driving control unit being suitable for the Gather and input civil power cycle; Be provided with clock module in wherein said driving control unit, and be suitable for being commutated by power conversion circuit control circuit according to the civil power cycle, and control the output voltage of power conversion circuit according to the period, to realize timesharing brightness adjustment control.
Further, in order to better realize timesharing brightness adjustment control, described power conversion circuit comprises: the first switch and the second switch that are positioned at major loop, and the first continued flow switch and the second continued flow switch, and first, second continued flow switch described is first, second fly-wheel diode in parallel respectively; Described circuit commutation, namely when inputting civil power and being in positive half cycle, described driving control unit is suitable for control first switch conduction, second switch copped wave, and the first continued flow switch turns off, second continued flow switch conducting, to build forward dc chopper circuit, realizes forming electric current afterflow forward loop by the second continued flow switch, the first fly-wheel diode; And when inputting civil power and being in negative half period, described driving control unit is suitable for the copped wave of control first switch, second switch conducting, and the first continued flow switch conducting, second continued flow switch turns off, to build negative sense DC chopper circuit, realize forming electric current afterflow return circuit by the first continued flow switch, the second fly-wheel diode; Described driving control unit is also suitable for being regulated to realize described output voltage by control first switch or second switch copped wave according to the period.
Further, the input of described power conversion circuit is also provided with input filter circuit and is connected, namely at the input of a power conversion circuit electric capacity C1 in parallel.
Further, described driving control unit comprises: driver module and control circuit, described driver module comprises: voltage commutation detection module and the driver module by CPLD module controls, and described voltage commutation detection module is suitable for mains voltage signal being converted to commutation signal and is sent to CPLD module; Processor module in described control circuit is suitable for controlling signal to described CPLD module by clock signal transmit time segments; Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.
Another aspect, the present invention, in order to solve same technical problem, additionally provides a kind of method of work of AC electric power regulator.
Described AC electric power regulator is connected with load by output filter circuit, and described AC electric power regulator comprises: power conversion circuit and the driving control unit being suitable for the Gather and input civil power cycle; Clock module is provided with in wherein said driving control unit; The method of work of described AC electric power regulator comprises: according to the civil power cycle, and described driving control unit is commutated by power conversion circuit control circuit, and controls the output voltage of power conversion circuit according to the period, to realize timesharing brightness adjustment control.
Further, described power conversion circuit comprises: the first switch and the second switch that are positioned at major loop, and the first continued flow switch and the second continued flow switch, and first, second continued flow switch described is first, second fly-wheel diode in parallel respectively; Described circuit commutation, namely when inputting civil power and being in positive half cycle, described driving control unit is suitable for control first switch conduction, second switch chop control, and the first continued flow switch turns off, second continued flow switch conducting, to build forward dc chopper circuit, realizes forming electric current afterflow forward loop by the second continued flow switch, the first fly-wheel diode; And when inputting civil power and being in negative half period, described driving control unit is suitable for control first switch chop control, second switch conducting, and the first continued flow switch conducting, second continued flow switch turns off, to build negative sense DC chopper circuit, realize forming electric current afterflow return circuit by the first continued flow switch, the second fly-wheel diode; Described driving control unit is also suitable for being regulated to realize described output voltage by control first switch or second switch copped wave according to the period.
Further, in described forward dc chopper circuit, when second switch is in high frequency chopping copped wave, if second switch conducting, then the filter inductance storage power in output filter circuit; If when second switch turns off, then constitute described electric current afterflow forward loop; And in described negative sense DC chopper circuit, when the first switch is in high frequency chopping copped wave, if the first switch conduction, then the filter inductance storage power in output filter circuit; If during the first switch OFF, then constitute described electric current afterflow return circuit.
Further, described driving control unit comprises: driver module and control circuit, wherein said driver module comprises: voltage commutation detection module and the driver module by CPLD module controls, and described voltage commutation detection module is used for that mains voltage signal is converted to commutation signal and is sent to CPLD module; Processor module in described control circuit is suitable for controlling signal to described CPLD module by clock signal transmit time segments; Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.
The third aspect, present invention also offers a kind of street lamp.
In the circuit of described street lamp, described AC electric power regulator is installed.
The invention has the beneficial effects as follows, the present invention is directed to produced problem in existing product in the market, and the phenomenon that reliability is poor and useful life is shorter, the invention provides a kind of AC electric power regulator to achieve at times to alternating current step-down Regulation Control, to solve street lamp Intelligent time-sharing brightness adjustment control, system reliability and stability can be significantly improved, reach the object improving the entire system life-span, finally reach the object of stable street lighting and conservation of power energy loss.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 shows the circuit theory diagrams of AC electric power regulator;
Fig. 2 shows the circuit theory diagrams of second switch conducting in forward dc chopper circuit;
Fig. 3 shows second switch breaking circuit schematic diagram in forward dc chopper circuit;
Fig. 4 shows the circuit theory diagrams of the first switch conduction in reverse DC chopper circuit;
Fig. 5 shows the circuit theory diagrams of the first switch OFF in reverse DC chopper circuit.
In figure: the first switch S 1, second switch S2, the first continued flow switch S3, the second continued flow switch S4, the first diode VD1, the second diode VD2, the first fly-wheel diode VD3, the second fly-wheel diode VD4, filter inductance L, electric capacity C1, C2, load R.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1
Fig. 1 shows the circuit theory diagrams of AC electric power regulator.
As shown in Figure 1, AC electric power regulator of the present invention, described AC electric power regulator is connected with load R (such as but not limited to being street lamp) by output filter circuit, and described AC electric power regulator comprises: power conversion circuit and the driving control unit being suitable for the Gather and input civil power cycle; Be provided with clock module in wherein said driving control unit, and be suitable for being commutated by power conversion circuit control circuit according to the civil power cycle, and control the output voltage of power conversion circuit according to the period, to realize timesharing brightness adjustment control.
The object of this AC electric power regulator to realize satisfying the need the control of light working voltage according to the period, to reach the object of timesharing brightness adjustment control.
Embodiment about forward dc chopper circuit, negative sense DC chopper circuit is as follows:
As shown in Figures 2 to 5, described power conversion circuit comprises: the first switch S 1 and the second switch S2 that are positioned at major loop, and the first continued flow switch S3 and the second continued flow switch S4, described first, second continued flow switch S4 is the first fly-wheel diode VD3 in parallel, the second fly-wheel diode VD4 respectively; Described circuit commutation, namely when inputting civil power and being in positive half cycle, described driving control unit is suitable for the conducting of control first switch S 1, second switch S2 copped wave, and the first continued flow switch S3 turns off, second continued flow switch S4 conducting, to build forward dc chopper circuit, realizes forming electric current afterflow forward loop by the second continued flow switch S4, the first fly-wheel diode VD3; And when inputting civil power and being in negative half period, described driving control unit is suitable for the copped wave of control first switch S 1, second switch S2 conducting, and the first continued flow switch S3 conducting, second continued flow switch S4 turns off, to build negative sense DC chopper circuit, realize forming electric current afterflow return circuit by the first continued flow switch S3, the second fly-wheel diode VD4; Described driving control unit is also suitable for being regulated to realize described output voltage by control first switch S 1 or second switch S2 copped wave according to the period.
Optionally, described first switch S 1, second switch S2 are parallel with diode (in figure the first diode VD1, the second diode VD2) too, to play the effect of first, second switch S 2 of protection.
As shown in Figures 2 and 3 (in figure, arrow represents the sense of current), concrete, be provided with filter inductance in described output filter circuit for stored energy; Namely when second switch S2 is in high frequency chopping copped wave, if second switch S2 conducting, then the filter inductance storage power in output filter circuit; If when second switch S2 turns off, then the second continued flow switch S4 and the first fly-wheel diode VD3 provides electric current afterflow forward loop, simultaneously the filter inductance fault offset that will store, continues powering load, ensures output current continuity.
As shown in Figure 4 and Figure 5 (in figure, arrow represents the sense of current), concrete, when the first switch S 1 is in high frequency chopping copped wave, if the first switch S 1 conducting, then the filter inductance storage power in output filter circuit; If when the first switch S 1 turns off, then the first continued flow switch S3 and the second fly-wheel diode VD4 provides electric current afterflow return circuit, and simultaneously the filter inductance fault offset that will store, continues powering load, ensure output current continuity.
The input of described power conversion circuit is also provided with input filter circuit and is connected; namely at the input of a power conversion circuit electric capacity C1 in parallel; to realize the effect of filtering high-frequency current harmonic wave and voltage harmonic; serve and absorb due to voltage spikes in civil power, and protect the effect of the first switch S 1 and second switch S2 and power conversion circuit.
Described driving control unit comprises: driver module and control circuit, described driver module comprises: voltage commutation detection module and the driver module by CPLD module controls, and wherein said voltage commutation detection module is suitable for mains voltage signal being converted to commutation signal and is sent to CPLD module; Processor module in described control circuit is suitable for controlling signal to described CPLD module by clock signal transmit time segments; Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.
Wherein, described commutation signal comprises the control signal controlling first, second continued flow switch S4 shutoff or conducting, and in forward dc chopper circuit, control the control signal of the first switch S 1 conducting and second switch S2 conducting in negative sense DC chopper circuit; Described period control signal comprise change duty ratio according to the period and be suitable for the pwm signal of chop control.
Optionally, described processor module is such as but not limited to employing single-chip microcomputer, described control circuit also comprises: the display circuit be connected with single-chip microcomputer and key circuit and feedback of voltage and current circuit, by input voltage and input current and the output current voltage of AC electric power regulator described in feedback of voltage and current electric circuit inspection.Period control is realized, by display circuit to check input, the output current voltage of AC electric power regulator by key circuit.
Described output filter circuit specifically comprises filter inductance L, output capacitance C2, and with the load (street lamp) of this Capacitance parallel connection, described output capacitance C2 connects with filter inductance L with after load parallel connection.
Embodiment 2
As shown in Figures 1 to 5, on embodiment 1 basis, present invention also offers the method for work of described AC electric power regulator.
Concrete implementation, described AC electric power regulator is connected with load by output filter circuit, and described AC electric power regulator comprises: power conversion circuit and the driving control unit being suitable for the Gather and input civil power cycle; Clock module is provided with in wherein said driving control unit.
The method of work of described AC electric power regulator comprises: according to the civil power cycle, and described driving control unit is commutated by power conversion circuit control circuit, and controls the output voltage of power conversion circuit according to the period, to realize timesharing brightness adjustment control.
Described power conversion circuit comprises: the first switch S 1 and the second switch S2 that are positioned at major loop, and the first continued flow switch S3 and the second continued flow switch S4, and described first, second continued flow switch S4 is first, second fly-wheel diode VD4 in parallel respectively; Described circuit commutation, namely when inputting civil power and being in positive half cycle, described driving control unit is suitable for the conducting of control first switch S 1, second switch S2 chop control, and the first continued flow switch S3 turns off, second continued flow switch S4 conducting, to build forward dc chopper circuit, realizes forming electric current afterflow forward loop by the second continued flow switch S4, the first fly-wheel diode VD3; And when inputting civil power and being in negative half period, described driving control unit is suitable for control first switch S 1 chop control, second switch S2 conducting, and the first continued flow switch S3 conducting, second continued flow switch S4 turns off, to build negative sense DC chopper circuit, realize forming electric current afterflow return circuit by the first continued flow switch S3, the second fly-wheel diode VD4; Described driving control unit is also suitable for being regulated to realize described output voltage by control first switch S 1 or second switch S2 copped wave according to the period.
Further, in described forward dc chopper circuit, when second switch S2 is in high frequency chopping copped wave, if second switch S2 conducting, then the filter inductance storage power in output filter circuit; If when second switch S2 turns off, then constitute described electric current afterflow forward loop, simultaneously the filter inductance fault offset that will store, continues powering load, ensures output current continuity.
In described negative sense DC chopper circuit, when the first switch S 1 is in high frequency chopping copped wave, if the first switch S 1 conducting, then the filter inductance storage power in output filter circuit; If when the first switch S 1 turns off, then constitute described electric current afterflow return circuit, simultaneously the filter inductance fault offset that will store, continues powering load, ensures output current continuity.
As the present embodiment one preferred embodiment, described driving control unit comprises: driver module and control circuit, wherein said driver module comprises: voltage commutation detection module and the driver module by CPLD module controls, and described voltage commutation detection module is used for that mains voltage signal is converted to commutation signal and is sent to CPLD module; Processor module in described control circuit is suitable for controlling signal to described CPLD module by clock signal transmit time segments; Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.
Embodiment 3
On embodiment 1 basis, present invention also offers a kind of street lamp, in the circuit of described street lamp, described AC electric power regulator is installed.
AC electric power regulator of the present invention is by the first switch S 1, second switch S2, first continued flow switch S3, second continued flow switch S4 and output filter circuit are arranged in pairs or groups mutually, can effective regulated output voltage (i.e. the input voltage of output filter circuit), Based Intelligent Control output voltage, realize street lamp timesharing brightness adjustment control, system reliability and stability can be significantly improved, reach the object improving the entire system life-span, finally reach the object of stable street lighting and conservation of power energy loss.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (9)
1. an AC electric power regulator, described AC electric power regulator is connected with load by output filter circuit, it is characterized in that, described AC electric power regulator comprises: power conversion circuit and the driving control unit being suitable for the Gather and input civil power cycle; Wherein
Be provided with clock module in described driving control unit, and be suitable for being commutated by power conversion circuit control circuit according to the civil power cycle, and control the output voltage of power conversion circuit according to the period, to realize timesharing brightness adjustment control.
2. AC electric power regulator according to claim 1, is characterized in that,
Described power conversion circuit comprises: the first switch and the second switch that are positioned at major loop, and the first continued flow switch and the second continued flow switch, and first, second continued flow switch described is first, second fly-wheel diode in parallel respectively;
Described circuit commutation, namely when inputting civil power and being in positive half cycle, described driving control unit is suitable for control first switch conduction, second switch copped wave, and the first continued flow switch turns off, second continued flow switch conducting, to build forward dc chopper circuit, realizes forming electric current afterflow forward loop by the second continued flow switch, the first fly-wheel diode; And
When inputting civil power and being in negative half period, described driving control unit is suitable for the copped wave of control first switch, second switch conducting, and the first continued flow switch conducting, second continued flow switch turns off, to build negative sense DC chopper circuit, realize forming electric current afterflow return circuit by the first continued flow switch, the second fly-wheel diode;
Described driving control unit is also suitable for being regulated to realize described output voltage by control first switch or second switch copped wave according to the period.
3. AC electric power regulator according to claim 2, is characterized in that,
The input of described power conversion circuit is also provided with input filter circuit and is connected, namely at the input of a power conversion circuit electric capacity C1 in parallel.
4. AC electric power regulator according to claim 2, is characterized in that, described driving control unit comprises: driver module and control circuit, wherein
Described driver module comprises: voltage commutation detection module and the driver module by CPLD module controls;
Described voltage commutation detection module is suitable for mains voltage signal being converted to commutation signal and is sent to CPLD module;
Processor module in described control circuit is suitable for controlling signal to described CPLD module by clock signal transmit time segments;
Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.
5. a method of work for AC electric power regulator, is characterized in that,
Described AC electric power regulator is connected with load by output filter circuit, and described AC electric power regulator comprises: power conversion circuit and the driving control unit being suitable for the Gather and input civil power cycle; Wherein
Clock module is provided with in described driving control unit;
The method of work of described AC electric power regulator comprises: according to the civil power cycle, and described driving control unit is commutated by power conversion circuit control circuit, and controls the output voltage of power conversion circuit according to the period, realizes timesharing brightness adjustment control.
6. the method for work of AC electric power regulator according to claim 5, is characterized in that,
Described power conversion circuit comprises: the first switch and the second switch that are positioned at major loop, and the first continued flow switch and the second continued flow switch, and first, second continued flow switch described is first, second fly-wheel diode in parallel respectively;
Described circuit commutation, namely when inputting civil power and being in positive half cycle, described driving control unit is suitable for control first switch conduction, second switch chop control, and the first continued flow switch turns off, second continued flow switch conducting, to build forward dc chopper circuit, realizes forming electric current afterflow forward loop by the second continued flow switch, the first fly-wheel diode; And
When inputting civil power and being in negative half period, described driving control unit is suitable for control first switch chop control, second switch conducting, and the first continued flow switch conducting, second continued flow switch turns off, to build negative sense DC chopper circuit, realize forming electric current afterflow return circuit by the first continued flow switch, the second fly-wheel diode;
Described driving control unit is also suitable for being regulated to realize described output voltage by control first switch or second switch copped wave according to the period.
7. the method for work of AC electric power regulator according to claim 6, is characterized in that,
In described forward dc chopper circuit, when second switch is in high frequency chopping copped wave, if second switch conducting, then the filter inductance storage power in output filter circuit; If when second switch turns off, then constitute described electric current afterflow forward loop; And
In described negative sense DC chopper circuit, when the first switch is in high frequency chopping copped wave, if the first switch conduction, then the filter inductance storage power in output filter circuit; If during the first switch OFF, then constitute described electric current afterflow return circuit.
8. the method for work of AC electric power regulator according to claim 7, is characterized in that,
Described driving control unit comprises: driver module and control circuit, wherein
Described driver module comprises: voltage commutation detection module and the driver module by CPLD module controls;
Described voltage commutation detection module is used for that mains voltage signal is converted to commutation signal and is sent to CPLD module;
Processor module in described control circuit is suitable for controlling signal to described CPLD module by clock signal transmit time segments;
Described CPLD module is suitable for controlling each switch on and off according to commutation signal and period control signal by driver module.
9. a street lamp, is characterized in that, be provided with in the circuit of described street lamp as arbitrary in claim 1-4 as described in AC electric power regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104910.9A CN104684220B (en) | 2015-03-10 | 2015-03-10 | It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104910.9A CN104684220B (en) | 2015-03-10 | 2015-03-10 | It is suitable to the AC electric power regulator and method of work, street lamp of timesharing light modulation |
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| CN104684220A true CN104684220A (en) | 2015-06-03 |
| CN104684220B CN104684220B (en) | 2017-03-15 |
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| US6459606B1 (en) * | 2001-09-27 | 2002-10-01 | York International Corporation | Control system and method for four-quadrant switches in three-phase PWM AC voltage regulators |
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| CN104684220B (en) | 2017-03-15 |
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