CN202958035U - Voltage-regulating and energy-saving device of street lamp along with voltage fluctuation of power grid - Google Patents
Voltage-regulating and energy-saving device of street lamp along with voltage fluctuation of power grid Download PDFInfo
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- CN202958035U CN202958035U CN2012207200077U CN201220720007U CN202958035U CN 202958035 U CN202958035 U CN 202958035U CN 2012207200077 U CN2012207200077 U CN 2012207200077U CN 201220720007 U CN201220720007 U CN 201220720007U CN 202958035 U CN202958035 U CN 202958035U
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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 utility model discloses the voltage-regulating and energy-saving device of a street lamp along with the voltage fluctuation of the power grid, which belongs to the technical field of energy-saving technical field of street lamps. According to the technical scheme of the utility model, the voltage output of the power grid is firstly connected with a fault protection unit and then the fault protection unit is connected with n taps at the primary side of an auto-transformer through n non-contact switches correspondingly. A signal acquisition unit is directly connected with an SCM unit. The drive signals of the SCM are directly connected with the trigger ends of the non-contact switches through non-contact switch drive units. Two taps at the secondary side of the auto-transformer are connected with another two non-contact switches. After the power supply is switched on, the SCM starts the self-checking procedure and receives processed analog signals so as to drive the non-contact switches to regulate and control the output voltage of the auto-transformer according to the voltage fluctuation of the power grid. The device is low in investment. Due to the adoption of the device, the energy-saving effect of street lamps when the voltage of the power grid fluctuates acutely is realized.
Description
Technical field
The utility model belongs to the road lamp energy-saving technical field, particularly a kind of street lamp pressure regulating energy-saving device of following voltage ripple of power network.
Background technology
At present, street lamp step-down energy-saving controller commonly used mainly contains following three kinds:
1) controllable silicon chopper-type illumination energy-saving controller: adopt controllable silicon copped wave principle, by controlling the angle of flow of thyristor (controllable silicon), the sine voltage of electrical network input is cut away to a part, thereby reduced the mean value of output voltage, reach the purpose of pressure control economize on electricity.But this voltage regulating mode, due to copped wave, make voltage can't realize sinewave output, also there will be a large amount of harmonic waves, form electrical network strategy harmonic pollution, very harmful.If install filter apparatus additional, cost is too high, so this kind equipment is should not be for lighting circuit.
2) fixing many grades of buck controllers: because the no-load voltage ratio of its many taps autotransformer used is fixed; once terminals are fixed; reducing voltage is exactly fixed value; when voltage ripple of power network; the output voltage of regulation device also can fluctuate up and down; the operating voltage of illumination is in the erratic fluctuations state like this, can't play the protective effect to electric light source.Owing to having used the employing A.C. contactor to carry out the transformation switching, can produce " electric arc " and " flash " from potential safety hazard when disconnecting.Its fail safe, reliability and no-failure operation life-span all can not ensure.
3) regulate continuously buck controller: the surface smoothing by brush at autotransformer coil moves or rolls, and changes the no-load voltage ratio of coil and regulation output voltage.Although it can realize stepless control, degree of regulation is high, and because the brush regulating loop is to go here and there in major loop, the electric current born is large, if the brush loose contact can produce spark; The contact of machinery simultaneously also can cause contact wear.
In addition, according to investigation, show, the line voltage in general city is generally higher than more than 5% of rated value, and particularly, in low power consumption period at midnight, line voltage even can exceed normal voltage 15%, reaches 245V.Now street lamp moves under higher than the rated voltage state, has not only caused a large amount of wastes of the energy, the useful life of also having reduced street lamp.And the frequent switching due to a large amount of power loads, cause the obvious fluctuation of line voltage sometimes, now can affect equally the useful life of street lamp.Simultaneously, due to the time after midnight vehicle flowrate and flow of the people all less, the brightness requirement of street lamp is reduced, should appropriateness reduce the brightness of street lamp, to reach the purpose of road lamp energy-saving.But existing road lamp energy-saving method does not solve above-mentioned three problems fully.
The utility model content
The purpose of this utility model is not solve the frequent switching due to a large amount of power loads fully for existing road lamp energy-saving method, can cause the obvious fluctuation of line voltage, a large amount of wastes of the energy have been caused, affect the deficiency in the useful life of street lamp, a kind of street lamp pressure regulating energy-saving device of following voltage ripple of power network is provided, it is characterized in that, described street lamp pressure regulating energy-saving device consists of line voltage and at first is connected with the error protection unit, two autotransformers of exporting and connecing signal gathering unit and N tap of error protection unit, wherein, the high-voltage output end of error protection unit first connects N NCS silicon controlled source electrode in parallel, N NCS silicon controlled drain electrode in parallel connect respectively again the autotransformer primary side first to the N tap, and NCS I controllable silicon and NCS II silicon controlled source electrode respectively with 2 of autotransformer primary side output taps, the drain electrode of NCS I controllable silicon and NCS II links together with the 3rd output of error protection unit again, and as the high-pressure side of out-put supply, the low-pressure end that the low-pressure end of out-put supply is two outputs in error protection unit and the tie point of autotransformer low-pressure end, the Single-chip Controlling unit directly is connected with display screen with signal gathering unit, noncontacting switch driver element input, clock chip respectively, and wherein noncontacting switch refers to N NCS controllable silicon, NCS I controllable silicon and NCS II controllable silicon.
Described error protection unit consists of low-voltage circuit breaker and auxiliary relay, and QF is low-voltage circuit breaker, the coil that KA is auxiliary relay, and KA1, KA2 are respectively normally-closed contact and the normally opened contact of auxiliary relay; After closed QF, coil KA energising, KA-1 disconnects, KA-2 closure, the operation of street lamp pressure regulating energy-saving device; After street lamp pressure regulating energy-saving device overload or short circuit, QF disconnects, coil KA outage, and KA-1 closure, KA-2 disconnects, and street lamp is directly powered by electrical network.
Described data acquisition unit comprises AC voltage transformer, current-limiting resistance and output resistance, current-limiting resistance and voltage transformer input are in series, the output of output resistance and voltage transformer is in parallel, and therefore line voltage is converted into to the low-voltage that single-chip microcomputer can bear.
The beneficial effects of the utility model are: this street lamp pressure regulating energy-saving device has and has 1. solved the too high and voltage fluctuation of line voltage to the lighting quality of street lamp and the impact in useful life.2. in design, used noncontacting switch, its relative traditional switch has that no-spark, switching speed are fast, good stability, reliability is high, volume is little, the output input outstanding advantages such as isolation fully, makes operation safe, fast.3. autotransformer has advantages of that volume is little, consumptive material is few, efficiency is high, has reduced the cost of manufacture of control device, has improved energy utilization rate.4. the application of single-chip microcomputer makes system to make reaction timely and effectively to the voltage fluctuation of civil power.5. autotransformer has been exported 220V and two different voltages of 200V, can make street lamp meet different brightness requirement.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
The structure principle chart that Fig. 1 is the street lamp pressure regulating energy-saving device.
The connection layout that Fig. 2 is signal gathering unit.
Fig. 3 is noncontacting switch structure of driving unit block diagram.
The structural representation that Fig. 4 is many taps autotransformer.
The connection layout that Fig. 5 is the error protection unit.
In figure, the NCS controllable silicon is noncontacting switch, and PT is the current mode voltage transformer, and QF is low-voltage circuit breaker, the coil that KA is auxiliary relay, and KA1, KA2 are respectively normally-closed contact and the normally opened contact of auxiliary relay.
Embodiment
The utility model provides a kind of street lamp pressure regulating energy-saving device of following voltage ripple of power network, below in conjunction with accompanying drawing, is explained.
The voltage-regulation type energy-saving control device structure principle chart that Fig. 1 is.Wherein the NCS controllable silicon is noncontacting switch solid-state relay commonly used, and T is many taps autotransformer, and the model of single-chip microcomputer is AVRmega128.The one NCS controllable silicon-N NCS controllable silicon is connected with N tap of autotransformer input successively; and NCS I controllable silicon is connected with 2 taps of autotransformer output respectively with NCS II controllable silicon; the voltage magnitude used for regulating the day and night street lamp; line voltage is connected with N NCS through the error protection unit; signal gathering unit is the mains voltage signal gathered; through overvoltage lifting circuit output single-chip microcomputer, single-chip microcomputer is controlled each NCS silicon controlled trigger electrode by pin.Wherein, the Single-chip Controlling unit comprises the AD converter of voltage lifting circuit, single-chip microcomputer and single-chip microcomputer inside, the ATmega128 that wherein model of single-chip microcomputer is atmel corp's research and development, and the amplifier model of using in voltage lifting circuit is LM124J.Because the ADC input reference signal of the ATmega128 single-chip microcomputer inside that this control device is used is 0 ~ 5V, and the signal that data acquisition unit is exported is the AC signal of positive and negative alternation in a power frequency period, therefore the low-voltage ac signal of data acquisition unit output must be raised to the signal of 0 ~ 5V by voltage lifting circuit.
The connection layout that Fig. 2 is signal gathering unit.Wherein R1 is current-limiting resistance, and R2 is output resistance, the voltage transformer that PT is current mode.R1 connects with the PT input, and R2 is in parallel with the PT output.For this reason, realized that the high voltage by electrical network converts the low-voltage of several volts to.And output C is as the input of voltage lifting circuit, output D ground connection.
Fig. 3 is noncontacting switch structure of driving unit block diagram.Driving signal and buffer circuit that wherein single-chip microcomputer is exported, drive circuit is connected successively, and the output of drive circuit is connected with the trigger electrode of noncontacting switch.The noncontacting switch driver element comprises N+2 noncontacting switch driver element output, and with the trigger electrode of N+2 noncontacting switch, being connected respectively, (noncontacting switch is above-mentioned the 1st NCS controllable silicon-N NCS controllable silicon+NCS I controllable silicon and NCS II controllable silicon; N is positive integer, and its size is determined by the fluctuation range of controlled line voltage scope and output voltage), and noncontacting switch commonly used has solid-state relay (as the HHG5-1 type), triode thyristor, gate level turn-off thyristor (GTO), MOSFET, IGBT etc., this noncontacting switch driver element comprises photoelectric isolating circuit and drive circuit.
The structural representation that Fig. 4 is many taps autotransformer.Wherein different line voltage scopes is controlled in 1-N tap, and the burning voltage of 220V and 200V is exported respectively in I and II tap.
The connection layout that Fig. 5 is the error protection unit.Wherein QF is low-voltage circuit breaker, the coil that KA is auxiliary relay, and KA1, KA2 are respectively normally-closed contact and the normally opened contact of auxiliary relay.After closed QF, coil KA energising, KA-1 disconnects, KA-2 closure, energy-saving control device operation; After energy-saving control device overload or short circuit, QF disconnects, coil KA outage, and KA-1 closure, KA-2 disconnects, and street lamp is by mains supply.
Claims (4)
1. a street lamp pressure regulating energy-saving device of following voltage ripple of power network, it is characterized in that, described street lamp pressure regulating energy-saving device consists of line voltage and at first is connected with the error protection unit, two autotransformers of exporting and connecing signal gathering unit and N tap of error protection unit, wherein, the high-voltage output end of error protection unit first connects N NCS silicon controlled source electrode in parallel, N NCS silicon controlled drain electrode in parallel connect respectively again the autotransformer primary side first to the N tap; And NCS I controllable silicon and NCS II silicon controlled source electrode respectively with 2 of autotransformer secondary side output taps, the drain electrode of NCS I controllable silicon and NCS II links together with the 3rd output of error protection unit again, and as the high-pressure side of out-put supply; The low-pressure end that the low-pressure end of out-put supply is two outputs in error protection unit and the tie point of autotransformer low-pressure end; The Single-chip Controlling unit directly is connected with display screen with signal gathering unit, noncontacting switch driver element input, clock chip respectively, and wherein noncontacting switch refers to N NCS controllable silicon, NCS I controllable silicon and NCS II controllable silicon.
2. a kind of street lamp pressure regulating energy-saving device of following voltage ripple of power network according to claim 1, it is characterized in that, described error protection unit consists of low-voltage circuit breaker and auxiliary relay, QF is low-voltage circuit breaker, the coil that KA is auxiliary relay, KA1, KA2 are respectively normally-closed contact and the normally opened contact of auxiliary relay; After closed QF, coil KA energising, KA-1 disconnects, KA-2 closure, the operation of street lamp pressure regulating energy-saving device; After street lamp pressure regulating energy-saving device overload or short circuit, QF disconnects, coil KA outage, and KA-1 closure, KA-2 disconnects, and street lamp is directly powered by electrical network.
3. a kind of street lamp pressure regulating energy-saving device of following voltage ripple of power network according to claim 1, it is characterized in that, described data acquisition unit comprises AC voltage transformer, current-limiting resistance and output resistance, current-limiting resistance and voltage transformer input are in series, the output of output resistance and voltage transformer is in parallel, and therefore line voltage is converted into to the low-voltage that single-chip microcomputer can bear.
4. a kind of street lamp pressure regulating energy-saving device of following voltage ripple of power network according to claim 1, it is characterized in that, describedly is connected respectively the selection that NCS I controllable silicon and NCS II are used for street lamp pressure regulating energy-saving device output voltage 220V/200V gear with 2 of autotransformer secondary side output taps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207200077U CN202958035U (en) | 2012-12-24 | 2012-12-24 | Voltage-regulating and energy-saving device of street lamp along with voltage fluctuation of power grid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012207200077U CN202958035U (en) | 2012-12-24 | 2012-12-24 | Voltage-regulating and energy-saving device of street lamp along with voltage fluctuation of power grid |
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| CN202958035U true CN202958035U (en) | 2013-05-29 |
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| CN2012207200077U Expired - Fee Related CN202958035U (en) | 2012-12-24 | 2012-12-24 | Voltage-regulating and energy-saving device of street lamp along with voltage fluctuation of power grid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932681A (en) * | 2016-04-18 | 2016-09-07 | 国网山东省电力公司郓城县供电公司 | Practical novel intelligent alternating-current power-grid power-saving device |
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2012
- 2012-12-24 CN CN2012207200077U patent/CN202958035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932681A (en) * | 2016-04-18 | 2016-09-07 | 国网山东省电力公司郓城县供电公司 | Practical novel intelligent alternating-current power-grid power-saving device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20131224 |