CN104797041A - Bootstrap trigger type smart grid frequency conversion energy-saving control system - Google Patents
Bootstrap trigger type smart grid frequency conversion energy-saving control system Download PDFInfo
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- CN104797041A CN104797041A CN201510145582.7A CN201510145582A CN104797041A CN 104797041 A CN104797041 A CN 104797041A CN 201510145582 A CN201510145582 A CN 201510145582A CN 104797041 A CN104797041 A CN 104797041A
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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 a bootstrap trigger type smart grid frequency conversion energy-saving control system which is mainly composed of an EMI (electro-magnetic interference) filter (1), a bridge rectifier (2) connected with the EMI filter (1), a boost-type active power factor correction circuit (3) connected with the bridge rectifier (2), a DC/AC (direct current/alternating current) high-frequency inverter (4) connected with the boost-type active power factor correction circuit (3) and the like. The system is simple in overall structure and is high in stability and reliability; a conventional compensation capacitor is replaced by a triode bootstrap compensation circuit, the control system is greatly downsized, the power factor of the entire control system is increased to the greatest extent, and stability of the system is guaranteed.
Description
Technical field
The present invention relates to electrical network energy-saving field, specifically refer to a kind of bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use.
Background technology
At present, along with the development of urbanization and the raising of living standards of the people, the electric energy that city illumination consumes is that geometry radix increases, and reduce discharging the call of policy to respond national energy-saving, the concept of intelligent grid more and more obtains everybody accreditation.Intelligent grid is exactly the intellectuality of electrical network, is also referred to as " electrical network 2.0 ", and it is the technology application be based upon on integrated, high-speed bidirectional communication network basis, can realize the target of reliable, safety, the economy of electrical network, efficient, environmental friendliness and use safety.
Energy-saving and frequency-variable street lamp is a significant element of composition intelligent grid, and the energy-conservation major embodiment of energy-saving and frequency-variable street lamp on the controller, the controller overwhelming majority now commercially used or traditional inductance type ballast, and inductance type ballast also exists following shortcomings: 1, power factor is very low, add building-out capacitor, generally also can only reach about 0.85, this makes same power need larger supply electric current, have to increase the capacity of special change (street-lighting transformer), increase the diameter of service cable, cost is increased; 2, under inductance type ballast is operated in mains frequency, silicon steel sheet must be used in a large number, and the material making silicon steel sheet is scarce resource, is unfavorable for the protection of environmental protection and scarce resource; 3, the power that inductance type ballast consumes increases along with the increase of input voltage, does not have defencive function in addition, therefore when fluorescent tube open circuit or short circuit, easily damages ballast and annex thereof.
In sum, the energy-saving and frequency-variable controller for road lamp in current intelligent grid frequency conversion energy-saving system can not effectively realize energy-conservation object.
Summary of the invention
The object of the invention is to overcome and can not effectively realize energy-conservation defect in current intelligent grid frequency conversion energy-saving system existing for energy-saving and frequency-variable controller for road lamp, a kind of bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use is provided.
The following technical scheme of object of the present invention realizes: a kind of bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use; primarily of electromagnetic interface filter; the bridge rectifier be connected with electromagnetic interface filter; the boost type active power factor correction circuit be connected with bridge rectifier; the DC/AC high-frequency converter be connected with boost type active power factor correction circuit; the sampling protective circuit be connected with this DC/AC high-frequency converter and pulse generation drive circuit, and the single-chip microcomputer be connected with pulse generation drive circuit with sampling protective circuit respectively forms.Meanwhile, triode bootstrapping compensating circuit and the saturated circuits for triggering of emitter following are also provided with; The input of described triode bootstrapping compensating circuit is connected with the output of boost type active power factor correction circuit with DC/AC high-frequency converter respectively, and its output is then connected with sampling protective circuit after the saturated circuits for triggering of emitter following; Described triode bootstrapping compensating circuit is by voltage source V, be serially connected in the adjustable bridge circuit between the positive pole of voltage source V and negative pole, the triode power amplification circuit be connected with adjustable bridge circuit, and form with the bootstrapping compensating circuit that adjustable bridge circuit and triode power amplification circuit are all connected; The saturated circuits for triggering of described emitter following are by triode Q4, triode Q5, triode Q6, triode Q7, one end is connected with the collector electrode of triode Q4, the other end in turn through the resistance R12 that diode D3 is connected with the collector electrode of triode Q7 after resistance R15, and the resistance R13 that one end is connected with the collector electrode of triode Q5, the other end is connected with the collector electrode of triode Q6 after resistance R14 through diode D2 in turn forms; The base stage of described triode Q4 is connected with the collector electrode of triode Q6, and its emitter is external+4V voltage then; The base stage of described triode Q5 is connected with the collector electrode of triode Q7, the external+4V voltage of its emitter; The base stage of described triode Q6 is then connected with the tie point of resistance R15 with diode D3, its grounded emitter; The base stage of described triode Q7 is connected with the tie point of diode D2 with resistance R14, its grounded emitter; The collector electrode of described triode Q6 is then connected with triode feedback circuit, and the collector electrode of triode Q7 is then connected with sampling protective circuit.
Further, described adjustable bridge circuit is connected in series resistance R3, the resistance R5, the resistance R6 and resistance R4 that form electric loop in turn by head and the tail, and the resistance R1 that one end is connected with the tie point of resistance R4 with resistance R3, the other end is connected with triode power amplification circuit after adjustable resistance R2 forms; The adjustable side of described adjustable resistance R2 is then connected with the tie point of resistance R5 with resistance R3; Described resistance R4 is connected with compensating circuit of booting with the positive pole of voltage source V respectively with the tie point of resistance R6, resistance R5 is then connected with triode power amplification circuit with the tie point of resistance R6, and resistance R3 is also connected with the negative pole of voltage source V with the tie point of resistance R5.
Described triode power amplification circuit is by triode Q1, power amplifier P1, be serially connected in the resistance R7 between the base stage of triode Q1 and the end of oppisite phase of power amplifier P1, be serially connected in the resistance R8 between the emitter of triode Q1 and the end of oppisite phase of power amplifier P1, the electric capacity C1 be in parallel with resistance R8, and the polar capacitor C2 be serially connected between the in-phase end of power amplifier P1 and output forms; The in-phase end of described power amplifier P1 is then connected with the tie point of resistance R6 with resistance R5, and its output is then connected with bootstrapping compensating circuit.
Described bootstrapping compensating circuit is by triode Q2, triode Q8, power amplifier P2, one end is connected with the emitter of triode Q2, the resistance R10 of other end ground connection after resistance R16, one end is connected with the tie point of resistance R16 with resistance R10, the other end is in turn through resistance R17, the resistance R11 be connected with the output of power amplifier P2 after resistance R18, P pole is connected with the tie point of resistance R17 with resistance R11, the diode D1 that N pole is connected with the output of power amplifier P2, be serially connected in the polar capacitor C3 between the end of oppisite phase of power amplifier P2 and output, and the resistance R9 be serially connected between the in-phase end of power amplifier P2 and output forms, the collector electrode of described triode Q8 is connected with the tie point of resistance R17 with resistance R11, its base stage is connected with the tie point of resistance R18 with resistance R17, its emitter is connected with the output of power amplifier P1, the collector electrode of described triode Q2 is connected with the end of oppisite phase of power amplifier P2, and its base stage is then connected with the tie point of resistance R6 with resistance R4.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) overall structure of the present invention is comparatively simple, and its Stability and dependability is stronger.
(2) the present invention's triode bootstrapping compensating circuit instead of traditional building-out capacitor, can not only reduce the volume of control system greatly, and can also increase the power factor (PF) of whole control system significantly, thus guarantees the stable of system.
(3) the present invention when short circuit or open circuit, can guarantee the safety of whole control system by triode bootstrapping compensating circuit.
(4) the present invention's compensating circuit of saturated for emitter following circuits for triggering and triode being booted integrates use, can reduce the energy consumption of whole system greatly, can effectively guarantee its stability.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of triode of the present invention bootstrapping compensating circuit.
Fig. 3 is the saturated trigger circuit structure schematic diagram of emitter following of the present invention.
Wherein, the Reference numeral title in above accompanying drawing is respectively:
1-electromagnetic interface filter, 2-bridge rectifier, 3-boost type active power factor correction circuit; 4-DC/AC high-frequency converter, 5-triode bootstrapping compensating circuit, 6-sampling protective circuit; 7-single-chip microcomputer, 8-pulse generation drive circuit, the saturated circuits for triggering of 9-emitter following.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present invention mainly includes electromagnetic interface filter 1, bridge rectifier 2, boost type active power factor correction circuit 3, DC/AC high-frequency converter 4, triode bootstrapping compensating circuit 5, this nine major part of the saturated circuits for triggering 9 of sampling protective circuit 6, single-chip microcomputer 7, pulse generation drive circuit 8 and emitter following.
Wherein, sampling protective circuit 6 is for passing to single-chip microcomputer 7 by the voltage at energy-conserving road lamp two ends and through the sampled result of the electric current of energy-conserving road lamp, single-chip microcomputer 7 control impuls generation drive circuit 8 sends lights drive waveforms or normal task driven waveform to DC/AC high-frequency converter 4, the direct current of the 400V boosted through boost type active power factor correction circuit 3 is become the alternating current of high frequency by this DC/AC high-frequency converter 4 under the driving of high-frequency impulse, when starting, instantaneous high pressure is produced by triode bootstrapping compensating circuit 5, energy-conserving road lamp is lighted, and single-chip microcomputer 7 is according to the data of sampling protective circuit 6 Real-time Collection, according to Different periods predetermined power size adjust energy-conserving road lamp at day part constant power operations.
Described electromagnetic interface filter 1 enters product for preventing the high order harmonic component of electrical network, prevents the high order harmonic component of product itself from returning electrical network, and pollutes electrical network, make product meet national safety standard, meet corresponding laws and regulations.Bridge rectifier 2 is for becoming civil power 220V the pulse direct current of about 310V; Boost type active circuit of power factor correction 3, for the power factor of improving product complete machine, makes power factor reach more than 0.98, reduces the power supply burden of electrical network.Sampling protective circuit 6 is conventional circuit structure, and it is for the operating state of energy-conserving road lamp of sampling, and the data of sampling are delivered to single-chip microcomputer 7, and single-chip microcomputer 7 carries out judging that whether energy-conserving road lamp is in normal work, and the result according to judging determines whether taking safeguard measure; If normally work, then according to sampled data, adjust the operating frequency of product, and then control the constant of power output, realize invariable power and the intelligent dimming function of product.
During operation, single-chip microcomputer 7 is according to the driving pulse of sampled data adjustment pulse generation drive circuit 8, and this driving pulse, through isolating, amplifying the inverter circuit being supplied to DC/AC high-frequency converter 4, makes power tube work in high frequency, thus makes lamp luminous.And DC/AC high-frequency converter 4 is under the driving of high-frequency impulse, the direct current of 400V is become the alternating current of high frequency.
In order to ensure result of use of the present invention, the present invention specially devises triode bootstrapping compensating circuit 5 and the saturated circuits for triggering 9 of emitter following.Wherein, the concrete structure of triode bootstrapping compensating circuit 5 as shown in Figure 2.Namely, this triode bootstrapping compensating circuit 5 is by voltage source V, be serially connected in the adjustable bridge circuit between the positive pole of voltage source V and negative pole, the triode power amplification circuit be connected with adjustable bridge circuit, and form with the bootstrapping compensating circuit that adjustable bridge circuit and triode power amplification circuit are all connected.
Wherein, adjustable bridge circuit is connected in series resistance R3, the resistance R5, the resistance R6 and resistance R4 that form electric loop in turn by head and the tail, and the resistance R1 that one end is connected with the tie point of resistance R4 with resistance R3, the other end is connected with triode power amplification circuit after adjustable resistance R2 forms.Simultaneously, the adjustable side of adjustable resistance R2 is connected with the tie point of resistance R5 with resistance R3, resistance R4 is then connected with compensating circuit of booting with the positive pole of voltage source V respectively with the tie point of resistance R6, resistance R5 is then connected with triode power amplification circuit with the tie point of resistance R6, and resistance R3 is also connected with the negative pole of voltage source V with the tie point of resistance R5.That is, the tie point of the tie point of resistance R3 and resistance R5, and resistance R4 and resistance R6 is as the power input of adjustable bridge circuit, and it is connected with positive pole with the negative pole of voltage source V respectively; And the tie point of resistance R3 and resistance R4, and the tie point of resistance R5 and resistance R6 is then the output of this adjustable bridge circuit.Therefore, the electric loop that voltage source V just forms with resistance R3, resistance R4, resistance R6 and resistance R5 forms parallel circuits.
Described triode power amplification circuit is by triode Q1, and power amplifier P1, resistance R7, resistance R8, electric capacity C1 and polar capacitor C2 form.During connection, resistance R7 is serially connected between the base stage of triode Q1 and the end of oppisite phase of power amplifier P1, resistance R8 is serially connected between the emitter of triode Q1 and the end of oppisite phase of power amplifier P1, electric capacity C1 is then in parallel with resistance R8, between the in-phase end that polar capacitor C2 is then serially connected in power amplifier P1 and output.The in-phase end of power amplifier P1 is then connected with the tie point of resistance R6 with resistance R5, and its output is then connected with bootstrapping compensating circuit.
Described bootstrapping compensating circuit is made up of triode Q2, triode Q8, power amplifier P2, resistance R9, resistance R10, resistance R11, resistance R16, resistance R17, resistance R18, polar capacitor C3 and diode D1.During connection, one end of resistance R10 is connected with the emitter of triode Q2, other end ground connection after resistance R16; One end of resistance R11 is connected with the tie point of resistance R16 with resistance R10, its other end is connected with the output of power amplifier P2 in turn after resistance R17, resistance R18.
The P pole of diode D1 is connected with the tie point of resistance R17 with resistance R11, N pole is connected with the output of power amplifier P2; Between the end of oppisite phase that polar capacitor C3 is then serially connected in power amplifier P2 and output, between the in-phase end that resistance R9 is then serially connected in power amplifier P2 as continued flow resistance and output.
Simultaneously, the collector electrode of described triode Q8 will be connected with the tie point of resistance R17 with resistance R11, its base stage is connected with the tie point of resistance R18 with resistance R17, its emitter is connected with the output of power amplifier P1, and the emitter of triode Q8 also needs ground connection simultaneously.The collector electrode of described triode Q2 is connected with the end of oppisite phase of power amplifier P2, and its base stage is then connected with the tie point of resistance R6 with resistance R4.
During use, the in-phase end of power amplifier P2 draws the input forming this triode bootstrapping compensating circuit, and the base stage of triode Q8 then forms the output of this triode bootstrapping compensating circuit.During connection, the base stage of triode Q8 will be connected with the input of the saturated circuits for triggering of emitter following, to guarantee that the correcting controlling signal that boost type active power factor correction circuit 3 sends can impel triode Q2 conducting, and then start this triode bootstrapping compensating circuit 5.And the signal of this triode bootstrapping received by compensating circuit 5 is after triode power amplification circuit and the acting in conjunction of bootstrapping compensating circuit; its signal then exports to sampling protective circuit 6 through the saturated circuits for triggering 9 of emitter following, thus realizes compensate function and Trigger Function.The in-phase end of power amplifier P2 then needs to be connected with the output of boost type active power factor correction circuit 3 with DC/AC high-frequency converter 4 respectively.For guaranteeing result of use of the present invention, the resistance of described resistance R3: the resistance of the resistance=resistance R4 of resistance R6: the resistance of resistance R5.
As shown in Figure 3, namely it is by triode Q4, triode Q5, triode Q6, triode Q7, resistance R12, resistance R13, resistance R14, resistance R15 for the particular circuit configurations of the saturated circuits for triggering 9 of described emitter following, and diode D2 and diode D3 forms.During connection, one end of resistance R12 is connected with the collector electrode of triode Q4, the other end is connected with the collector electrode of triode Q7 after resistance R15 through diode D3 in turn, and one end of resistance R13 is connected with the collector electrode of triode Q5, the other end is connected with the collector electrode of triode Q6 after resistance R14 through diode D2 in turn.
Meanwhile, the base stage of described triode Q4 is connected with the collector electrode of triode Q6, and its emitter is external+4V voltage then; The base stage of described triode Q5 is connected with the collector electrode of triode Q7, the external+4V voltage of its emitter; The base stage of described triode Q6 is then connected with the tie point of resistance R15 with diode D3, its grounded emitter; The base stage of described triode Q7 is connected with the tie point of diode D2 with resistance R14, its grounded emitter; The collector electrode of described triode Q6 is then connected with the base stage of triode Q3, and the collector electrode of triode Q7 is then connected with sampling protective circuit 6.
As mentioned above, just well the present invention can be realized.
Claims (4)
1. a bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use, primarily of electromagnetic interface filter (1), the bridge rectifier (2) be connected with electromagnetic interface filter (1), the boost type active power factor correction circuit (3) be connected with bridge rectifier (2), the DC/AC high-frequency converter (4) be connected with boost type active power factor correction circuit (3), the sampling protective circuit (6) be connected with this DC/AC high-frequency converter (4) and pulse generation drive circuit (8), and the single-chip microcomputer (7) be connected with pulse generation drive circuit (8) with sampling protective circuit (6) respectively forms, it is characterized in that, also be provided with triode bootstrapping compensating circuit (5) and the saturated circuits for triggering of emitter following (9), the input of described triode bootstrapping compensating circuit (5) is connected with the output of boost type active power factor correction circuit (3) with DC/AC high-frequency converter (4) respectively, and its output is then connected with sampling protective circuit (6) after the saturated circuits for triggering of emitter following (9), described triode bootstrapping compensating circuit (5) is by voltage source V, be serially connected in the adjustable bridge circuit between the positive pole of voltage source V and negative pole, the triode power amplification circuit be connected with adjustable bridge circuit, and form with the bootstrapping compensating circuit that adjustable bridge circuit and triode power amplification circuit are all connected, the saturated circuits for triggering of described emitter following (9) are by triode Q4, triode Q5, triode Q6, triode Q7, one end is connected with the collector electrode of triode Q4, the other end in turn through the resistance R12 that diode D3 is connected with the collector electrode of triode Q7 after resistance R15, and the resistance R13 that one end is connected with the collector electrode of triode Q5, the other end is connected with the collector electrode of triode Q6 after resistance R14 through diode D2 in turn forms, the base stage of described triode Q4 is connected with the collector electrode of triode Q6, and its emitter is external+4V voltage then, the base stage of described triode Q5 is connected with the collector electrode of triode Q7, the external+4V voltage of its emitter, the base stage of described triode Q6 is then connected with the tie point of resistance R15 with diode D3, its grounded emitter, the base stage of described triode Q7 is connected with the tie point of diode D2 with resistance R14, its grounded emitter, the collector electrode of described triode Q6 is then connected with triode feedback circuit, and the collector electrode of triode Q7 is then connected with sampling protective circuit (6).
2. one bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use according to claim 1, it is characterized in that, described adjustable bridge circuit is connected in series resistance R3, the resistance R5, the resistance R6 and resistance R4 that form electric loop in turn by head and the tail, and the resistance R1 that one end is connected with the tie point of resistance R4 with resistance R3, the other end is connected with triode power amplification circuit after adjustable resistance R2 forms; The adjustable side of described adjustable resistance R2 is then connected with the tie point of resistance R5 with resistance R3; Described resistance R4 is connected with compensating circuit of booting with the positive pole of voltage source V respectively with the tie point of resistance R6, resistance R5 is then connected with triode power amplification circuit with the tie point of resistance R6, and resistance R3 is also connected with the negative pole of voltage source V with the tie point of resistance R5.
3. one bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use according to claim 2, it is characterized in that, described triode power amplification circuit is by triode Q1, power amplifier P1, be serially connected in the resistance R7 between the base stage of triode Q1 and the end of oppisite phase of power amplifier P1, be serially connected in the resistance R8 between the emitter of triode Q1 and the end of oppisite phase of power amplifier P1, the electric capacity C1 be in parallel with resistance R8, and the polar capacitor C2 be serially connected between the in-phase end of power amplifier P1 and output forms; The in-phase end of described power amplifier P1 is then connected with the tie point of resistance R6 with resistance R5, and its output is then connected with bootstrapping compensating circuit.
4. one bootstrapping trigger-type intelligent grid energy saving control system of frequency conversion in use according to claim 3, it is characterized in that, described bootstrapping compensating circuit is by triode Q2, triode Q8, power amplifier P2, one end is connected with the emitter of triode Q2, the resistance R10 of other end ground connection after resistance R16, one end is connected with the tie point of resistance R16 with resistance R10, the other end is in turn through resistance R17, the resistance R11 be connected with the output of power amplifier P2 after resistance R18, P pole is connected with the tie point of resistance R17 with resistance R11, the diode D1 that N pole is connected with the output of power amplifier P2, be serially connected in the polar capacitor C3 between the end of oppisite phase of power amplifier P2 and output, and the resistance R9 be serially connected between the in-phase end of power amplifier P2 and output forms, the collector electrode of described triode Q8 is connected with the tie point of resistance R17 with resistance R11, its base stage is connected with the tie point of resistance R18 with resistance R17, its emitter is connected with the output of power amplifier P1, the collector electrode of described triode Q2 is connected with the end of oppisite phase of power amplifier P2, and its base stage is then connected with the tie point of resistance R6 with resistance R4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510145582.7A CN104797041A (en) | 2015-03-30 | 2015-03-30 | Bootstrap trigger type smart grid frequency conversion energy-saving control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510145582.7A CN104797041A (en) | 2015-03-30 | 2015-03-30 | Bootstrap trigger type smart grid frequency conversion energy-saving control system |
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| WO2014179994A1 (en) * | 2013-05-10 | 2014-11-13 | Shanghai Sim-Bcd Semiconductor Manufacturing Co., Ltd. | Power supply for led lamp with triac dimmer |
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| CN1553562A (en) * | 2003-12-19 | 2004-12-08 | 清华大学 | Three-phase pure sinusoidal wave inverse power supply system with digital control |
| US20090237963A1 (en) * | 2008-03-24 | 2009-09-24 | Pyboyina Prasad | Ups frequency converter and line conditioner |
| CN202111629U (en) * | 2011-06-30 | 2012-01-11 | 山东朗进科技股份有限公司 | Universal intelligent power module |
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