CN2757489Y - Intelligent lighting energy saving control device - Google Patents

Abstract

The utility model relates to an intelligent lighting energy saving control device. The utility model has the technical scheme that the intelligent lighting energy saving control device comprises a voltage stabilizing transformer, a solid-state switch, a control device, input and output bypass components and a fault warning circuit, wherein the voltage stabilizing transformer comprises a voltage-regulating transformer and a compensating transformer, a secondary winding of the voltage-regulating transformer adopts a weighted winding, and the control device comprises a CPU chip, a photoelectric isolator, a voltage and current converting and driving circuit, a voltage sampling circuit, a zero crossing switching and timing circuit and a preset potential regulator. The utility model has the advantages that the intelligent lighting energy saving control device intelligently and efficiently realizes energy saving, and power can be saved for 20% to 30%; the output is green power without high harmonic pollution; the service life of switch components and lamps is long, the service life of the lamps can be extended for two to three times, and operating cost is reduced; the intelligent lighting energy saving control device has high automatization, stable and reliable operation, no pollution, short stable voltage regulating time, stable lamp light, little self power consumption, compact structure and convenient installation and maintenance.

Description

The intelligent lighting energy-saving control apparatus

Technical field

The utility model relates to Lighting Control Assembly, particularly a kind of intelligent lighting energy-saving control apparatus.

Background technology

In recent years, the construction development of city illumination, public work illumination, factory-fitting is swift and violent, and the use of efficient gas lamp is more extensive.Because the luminous operation principle complexity of gaseous discharge lamp, the maintenance and the power consumption of corresponding illuminator increase greatly, traditional illumination system can't realize in time at all, load variations and output voltage is regulated, after ubiquity illuminator and is once dropped into, utilance is not enough, lights the not high problem of rate.In zones such as street lamp, enterprise's device centralized lightings, in case lamp installation just almost for good and all keeps the power consumption of constant even excess, hundred kilometers highway section, will have more up to ten million RMB every year.The energy resource consumption of lighting field has accounted for sizable ratio, accounts for 10% of power consumption.Simultaneously, in extensive electricity consumption occasion, traditional sliding contact voltage regulator, A.C. contactor switch modes such as pressure regulation, saturation core regulator, phased pressurizer, the reaction speed that has is slow, mechanical contact is fragile, automaticity is low, the efficient that has is low, the then output waveform distortion that has is bigger, often electrical network is produced serious harmonic pollution.Along with constant development of economy, the power lighting electricity consumption that enterprise's device illumination, public work, city lighting engineering, urban landscape illuminating engineering etc. are consumed will constantly increase.Adopt all advanced means energy savings, resource conservation, implement green illumination, become the fundamental state policy of China's strategy of sustainable development.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, design a kind ofly can realize in time, load variations and a kind of intelligent lighting energy-saving control apparatus of energy-conservation, no electromagnetic pollution that output voltage is regulated, it is achieved by following technical proposals:

It comprises voltage stabilizing transformer, solid-state switch, control device, input and output bypass member, fault warning circuit, wherein:

Voltage stabilizing transformer comprises voltage regulating transformer, compensator transformer, and the secondary winding of voltage regulating transformer adopts the weighting winding.

Control device comprises cpu chip, photoelectric isolating device, electric current and voltage conversion driving circuit, voltage sampling circuit, zero passage switching timing circuit, preset potential adjuster,

The secondary winding of compensator transformer and input power series, its elementary winding connects by the corresponding tap of array solid-state switch with the described secondary winding of voltage regulating transformer, the input of voltage regulating transformer connects the input power supply, the I/O bypass member is connected to the secondary winding two ends of compensator transformer, the control end of solid-state switch connects the output of electric current and voltage conversion driving circuit, the output of photoelectric isolating device connects the input of electric current and voltage conversion (V/I) drive circuit, its input connects one group of I/O mouth of cpu chip, other I/O mouth of cpu chip connects the voltage sampling circuit output respectively, self check fault warning circuit input end, the adjustable side of zero passage switching timing circuit output end and preset potential adjuster, the input of I/O bypass member, the voltage sampling circuit input connects the output of compensator transformer, and zero passage switching timing circuit input end connects an end of elementary winding of compensator transformer and solid-state switch.

Described zero passage switching timing circuit is the current over-zero testing circuit.

Described compensator transformer elementary passes through two groups of solid-state switch groups and connects with the corresponding tap of the secondary winding of voltage regulating transformer.

Described each solid-state switch group is made up of several one ends and the solid-state switch that connects, behind the elementary winding polyphone of described current over-zero testing circuit input and compensator transformer, is connected between the above-mentioned two solid-state switch groups common port separately.

The beneficial effects of the utility model are: 1) employing is efficient, the intelligence control method realization is energy-conservation, less investment, instant effect, and 20%-30% can economize on electricity.Electricity consumption requirement and changes of seasons according to power supply object different time sections, automatically adjust output voltage values according to predetermined rule, as, under the actual conditions of power shortages, can be in the classification step-down of automatic slowly in night, have step-down illumination decline that is not directly proportional when energy-conservation according to gaseous discharge lamp simultaneously, be the little characteristics of illumination change, can accomplish both to have guaranteed lighting quality, considerable electricity charge spending is saved down in significantly saves energy consumption again; 2) output is " green power supply ".Adopt soft start, current over-zero commutation circuit and intrinsic filter action, significantly reduce the impact of light fixture startup to electrical network, the alternating voltage waveform of output is successively and not to introduce the waveform of additional distortion, does not produce the high order harmonic component that utility grid is polluted; 3) automaticity height, working stability is reliable, and noiselessness pollutes, the switching device long service life.Adopt semiconductor solid switch device, photoelectric isolating device and microcomputer program control, do not have mechanical switch contact, effectively isolate high-low pressure, voltage stabilizing intelligent control remains at the precision of voltage regulation more accurately; 4) prolong greatly the useful life of light fixture, effectively reduce operation maintenance cost.Under program control, output voltage changes according to the characteristic of modern high efficiency gas discharge light fixture, the impact of having avoided light fixture in start-up course, to be subjected to, make light fixture prolong 2-3 doubly service time, and after light fixture steady operation a period of time, make its load shedding operation, reduce the operation maintenance cost greatly; 5) voltage stabilizing adjustment time weak point, light is stable.The voltage that can finish in the extremely short time in the voltage stabilizing process is adjusted task, even constantly change output voltage as requested, also can not produce perceptible light flash; 6) the autophage electric energy is few, and compact conformation is convenient to installation and maintenance.By continuous detection and compensation because the power difference that voltage ripple of power network produces realizes voltage stabilizing, the electric power that itself consumes only is used for the compensation power error, total electricity well below the load actual consumption, make the equipment self volume little, in light weight, adopt modular structure, corrective maintenance time was reduced in half an hour.

Description of drawings

Fig. 1 is the structured flowchart of the utility model one embodiment

Fig. 2 is a solid-state switch group syndeton block diagram

Fig. 3 is the syndeton block diagram of preset potential adjuster in equipment

1 is compensator transformer among the figure, the 2nd, solid-state switch, the 3rd, voltage regulating transformer, the 4th, current/voltage conversion driving circuit, the 5th, photoelectric isolating device, the 6th, zero passage commutation circuit, the 7th, self check, failure alarm circuit, the 8th, sound, light crossing-signal, the 9th, cpu chip, 10,11 preset potential adjusters, the 12nd, voltage sampling circuit, the 13rd, voltage regulating transformer time utmost point weighting tapping, the 14th, level shifting circuit, the 15th, current sensor, the 16th, the input and output bypass member, the 19th, step-down isolation transformer, the 17th, current rectifying and wave filtering circuit, the 18th, A/D converter.

Embodiment

Below in conjunction with accompanying drawing the utility model figure is described further.

Contrast Fig. 1, the secondary winding of compensator transformer 1 is connected with the input power supply, powers to the load with the superposition that forms voltage.This superposition voltage can be in the same way, also can be reverse.During superposition, when the voltage of compensator transformer 1 secondary winding raise, the voltage that outputs to load also raise in the same way; Oppositely during superposition, when the voltage of compensator transformer 1 secondary winding raises, the voltage that outputs to load reduces on the contrary, therefore, as long as the height of the voltage of control compensation transformer 1 secondary winding and positive and negative, just can change output voltage within the specific limits arbitrarily, thereby output voltage is kept within the limits prescribed, provide stable output to load.

The bucking voltage of compensator transformer 1 is to realize with 3 being connected of weighting tapping of voltage regulating transformer by switching with compensation polarity.This switching connection is what to be carried out by the solid switch 2 of on-mechanical contact, present embodiment adopts two groups to have the incorporate solid-state switch 2 that inner photoelectricity is isolated, form by three solid-state switches 2 for every group, wherein an end of one group and connect the back be connected with compensator transformer 1 elementary winding, one end of another group also connects back serial connection zero passage switching timing circuit 6, connect compensator transformer 1 elementary winding again, see also Fig. 2.

Whether the folding of solid-state switch 2, is subjected to the control of solid-state switch 2 control ends, and control end switches accordingly according to control signal, reaches the purpose of correct compensation.The signal of its control end is sent by cpu chip 9, sends to by photoelectric isolating device 5 and current/voltage conversion driving circuit 4.Cpu chip 9 determines current due output voltage according to the Field adjustment situation of predefined time period of user and preset potential adjuster, and then by the sampling to output voltage, whether decision needs to adjust.Change time period of another setting over to from time period of a setting, output voltage will change, and when in certain time period of determining, then cpu chip 9 will make equipment operation in the voltage stabilizing operating state.There is very big voltage difference between the transformer Regulation Control parts that cpu chip and its are controlled, for guaranteeing safety and prevent outside electromagnetic interference that the transmission of control signal is finished by high-low pressure photoelectric isolating device 5.In the embodiment shown in the figures: what photoelectric isolating device 5 adopted is TLP-521 series photoelectrical coupler; Cpu chip 9 adopts the 89C51 chip of atmel corp; Current/voltage conversion driving circuit 4 adopts custom circuit; Voltage sampling circuit 12 is made up of step-down isolation transformer 19, current rectifying and wave filtering circuit 17 and A/D converter 18, the input of voltage sampling circuit 12 comes the isolated high-voltage signal by step-down isolation transformer 19, through current rectifying and wave filtering circuit 17 output analog voltage signals, convert the I/O mouth that digital signal is delivered to cpu chip 9 again to through A/D converter 18, see also Fig. 3.

Solid-state switch is controlled by zero passage switching timing circuit for 2 concrete switching times; adopt the current over-zero testing circuit of forming by conventional level change-over circuit 14 and current sensor 15 in embodiment illustrated in fig. 2; can follow the tracks of real electric current variation in the transformer coil more accurately; the zero passage that realizes electric current is accurately switched; farthest reduce switching shock; elimination is to the pollution of electrical network, the most effective protection solid switch element, and make the work of equipment self more safe and reliable.

Contrast Fig. 1, Fig. 3, it is to be used for the slow descending of voltage that the utility model is provided with 10,11, one in two preset potential adjusters, one is to be used for voltage to go up a slope slowly.It is that characteristics according to energy-saving lamp design, and the output voltage of intelligent lighting supply does not wish always to be stabilized on a certain fixed numbers, but wishes to change the voltage stabilizing value automatically in the different periods.As, turning on light powers up the period, requires voltage suitable, makes light fixture fast and reliable build-up of luminance, protection starting component and light fixture; Enter the snail-like movement slope period behind the build-up of luminance, require voltage since low numerical value, progressively slowly rise at the appointed time, the snail-like movement slope end point values that the period ends and reaches and be stabilized in setting is impacted reducing; And the energy-conservation period at night then requires voltage progressively slowly to descend at the appointed time, and the period ends and reaches and be stabilized in the slow descending end point values of setting, with saves energy with prolong light fixture useful life.Therefore, must carry out scene adjustment to snail-like movement slope end point values, slow descending end point values neatly according to local condition of power supply and user's wish, two preset potential adjusters are established for this purpose.The potential regulator of default snail-like movement slope terminal point is used to change the starting voltage and the end point voltage on snail-like movement slope, and the left-handed voltage that makes reduces, and dextrorotation can make voltage raise; The potential regulator of default slow descending terminal point is used to change the end point voltage of slow descending, and the left-handed voltage that makes reduces, and dextrorotation can make voltage raise.Cpu chip 9 changes the voltage stabilizing output valve in each period automatically by detecting the set condition of two preset potential adjusters, reaches the purpose of intelligent control.Because the CPU in the present embodiment adopts the 89C51 cake core, therefore no A/D converter in this chip is connected A/D converter 18, the realization digital-to-analogue conversion between cpu chip 9 and two preset potential adjusters 10,11.

In the accompanying drawing illustrated embodiment, input and output bypass member 16 has adopted A.C. contactor.When device fails, send instruction, by voltage compensating circuit this A.C. contactor is switched automatically accordingly, connect bypass circuit, cpu chip 9 sends command adapted thereto to self check, failure alarm circuit 7, sends the acousto-optic warning signal by sound, light crossing-signal 8, at this moment, main circuit is in the bypass channel state, to guarantee continuous uninterrupted power supply.

Claims (4)

1. the intelligent lighting energy-saving control apparatus comprises voltage stabilizing transformer, solid-state switch, control device, input and output bypass member, fault warning circuit, it is characterized in that:

Voltage stabilizing transformer comprises regulates transformer, compensator transformer, and the secondary winding of voltage regulating transformer adopts the weighting winding,

Control device comprises cpu chip, photoelectric isolating device, current/voltage conversion driving circuit, voltage sampling circuit, zero passage switching timing circuit, preset potential adjuster,

The secondary winding of compensator transformer and input power series, its elementary winding connects by the corresponding tap of array solid-state switch with the described secondary winding of voltage regulating transformer, the input of voltage regulating transformer connects the input power supply, the I/O bypass member is connected to the secondary winding two ends of compensator transformer, the control end of solid-state switch connects the output of electric current and voltage conversion driving circuit, the output of photoelectric isolating device connects the input of electric current and voltage conversion driving circuit, its input connects one group of I/O mouth of cpu chip, other I/O mouth of cpu chip connects the voltage sampling circuit output respectively, self check fault warning circuit input end, the adjustable side of zero passage switching timing circuit output end and preset potential adjuster, the input of I/O bypass member, the voltage sampling circuit input connects the output of compensator transformer, and zero passage switching timing circuit input end connects an end of elementary winding of compensator transformer and solid-state switch.

2. intelligent lighting energy-saving control apparatus according to claim 1 is characterized in that described zero passage switching timing circuit is the current over-zero testing circuit.

3. intelligent lighting energy-saving control apparatus according to claim 1, what it is characterized in that described compensator transformer elementaryly passes through two groups of solid-state switch groups and connects with the corresponding tap of the secondary winding of voltage regulating transformer.

4. intelligent lighting energy-saving control apparatus according to claim 1 and 2, it is characterized in that described each solid-state switch group is made up of several one ends and the solid-state switch that connects, behind the elementary winding polyphone of described current over-zero testing circuit input and compensator transformer, be connected between the above-mentioned two solid-state switch groups common port separately.

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