CN101557124A - Double-purpose machine of energy-saving charging and reactive power compensation - Google Patents
Double-purpose machine of energy-saving charging and reactive power compensation Download PDFInfo
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- CN101557124A CN101557124A CNA2009101024229A CN200910102422A CN101557124A CN 101557124 A CN101557124 A CN 101557124A CN A2009101024229 A CNA2009101024229 A CN A2009101024229A CN 200910102422 A CN200910102422 A CN 200910102422A CN 101557124 A CN101557124 A CN 101557124A
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- charging
- reactive power
- power compensation
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention relates to a double-purpose machine of energy-saving charging and reactive power compensation, which consists of a cabinet and a circuit. The double-purpose machine is characterized in that a capacitor is adopted to reduce the voltage of an AC, rectify the AC into a DC and then charge a storage battery; when charging is not executed, a commutating circuit is thrown away and the capacitor is directly put into an electric network to run. The invention relates to the two technical fields of power electronic technology and electric network reactive power compensation. When being used as a charging machine, the machine can output a constant DC and can automatically adapt to the voltage change of the storage battery in a certain voltage range; the DC output end is not afraid of short circuit. Moreover, the double-purpose machine does not have harmonic pollution, can automatically adjust the charging currents of each stage according to the charging demand of the storage battery, can automatically stop running after the storage battery is fully charged, saves more than 30 percent of power than that of a silicon controlled charging machine, and saves more than 15 percent of power than that of a transformer type charging machine. When charging is not executed, a compensation button is started to put the machine into the electric network to run and the machine serves just a reactive power compensation device, thus improving the power factor of the electric network, reducing the voltage loss of the electric network, improving the power supply quality and improving the power transmission capacity of the electric network.
Description
The present invention relates to a kind of energy-saving charging, the dual-purpose machine of reactive power compensation, particularly a kind ofly can carry out constant current charge, can carry out the dual-purpose machine of energy-saving charging, reactive power compensation of reactive power compensation again electrical network to storage battery.It is made up of cabinet and circuit two parts, be characterized in adopting capacitor with the alternating current step-down after rectification be that direct current charges a battery, throw commutating circuit when not charging away, directly capacitor is dropped into operation of power networks.The present invention relates to two technical fields of power electronic technology and power system reactive power compensation.When this machine uses as charger; can export invariable direct current; the change in voltage that in the certain voltage scope, can adapt to storage battery automatically; dc output end is not afraid of short circuit; can require to adjust automatically each stage charging current according to charge in batteries, storage battery is full of behind the electricity can autostop, than the economize on electricity of controllable silicon formula charger more than 30%; than transformer type charger economize on electricity more than 15%, and can carry out reactive power compensation to electrical network charging the time.When if this machine does not charge, start the compensation button, dropping into operation of power networks is exactly a reactive power compensation device, can improve power factor of electric network, reduces the line voltage loss, improves power supply quality, improves the ability that electrical network is carried electricity.The inventor once retrieved many charger patents, all only was to use as charger.The utility model patent that the inventor once applied for and obtained the authorization---the power conserving adaptive constant current charger (patent No.: ZL2006201096267), owing to do not design the startup loop of using as reactive power compensation device, though also can carry out reactive power compensation to electrical network simultaneously in the time of charging, but just can only leave unused when not charging, the potential of equipment can not be brought into play better, better economic benefit and social benefit can not be created.The inventor also once retrieved the patent of many reactive power compensating apparatus, also all was to use as just reactive power compensating apparatus.Because the present invention can not only use as charger, and can make reactive power compensation device and use, have the start-up circuit of two kinds of functions, and when making charger and using, also have charging and two kinds of functions of reactive power compensation simultaneously, so all different with patent in the past.
Technical field:
The dual-purpose machine machine of energy-conservation constant current charge, the reactive power compensation that the present invention relates to is transformed to direct current because charger is the alternating current that the utilization power electronic element will change in the cycle, and the equipment that charges a battery belongs to electric and electronic technical field.The alternating current that cycle changes after the power electronic element rectification, change be waveform, the size and Orientation of voltage, electric current.After electric capacity in the reactive power compensation device drops into operation of power networks, change be phase difference (angle) between alternating voltage, the electric current, therefore the principle of two kinds of equipment has nothing in common with each other.
Background technology:
Traditional charger has two kinds, and a kind of is that another kind is to use the controllable silicon step-down rectifier with the rectification of rectifier transformer buck diode.Charger with the rectification of rectifier transformer buck diode, transformer is an inductive load on the one hand, also will consume power system reactive power when consuming electric network active power, and electromagnetic conversion and transformer heating etc. have certain active loss, the charger that has adopts the fan heat radiation to also have noise.This on the other hand charger is bigger in charging initial stage charging current, and charging charging current in latter stage is zero substantially, and charging current is descending variation in the whole charging process.Say that again requirement in the time of will considering to satisfy maximum current during the configuration rectifier diode will be disposed bigger rectifier cell.With the charger of controllable silicon step-down rectifier, owing to changed the waveform of power supply, energy consumption is bigger, produces harmonic wave during work, disturbs wireless device work.Chinese patent has been announced a lot of condenser type constant current chargers, and principle is the same, has nothing in common with each other on the structure.
As the reactive power compensation device of energy-saving and cost-reducing equipment, general power consumer all is to adopt electrostatic condenser to carry out the artificial compensation.The load of electrical network is inductive load more than 70%, because there is phase difference in voltage and current in the inductive element, so the utilance of inductive load when work electric energy reduces.In inductive load work, drop into a certain amount of capacitor, can reduce the phase difference between the voltage and current, so can improve utilization rate of electrical.It is big more to load, and the electric capacity of required input is many more.China began just to formulate and has implemented " power rate adjust the electricity charge way " as far back as the fifties, impelled the user to install reactive-load compensation equipment, saves energy.Present power consumer is generally recognized the importance of installing reactive power compensating apparatus, and all at the aggressive installation reactive-load compensation equipment of purchasing, this equipment and technology is quite ripe simultaneously, and quality is become better and better, and controlling level is more and more higher.
Summary of the invention:
The objective of the invention is to: invent a kind of energy-saving charging, the dual-purpose machine of reactive power compensation.The present invention can not only use as charger, and can make reactive power compensation device and use, and has the start-up circuit of two kinds of functions, and when making charger and using, also has charging and two kinds of functions of reactive power compensation simultaneously.
The present invention constitutes like this: by cabinet 1, compensation indicator light 2, charging indicator light 3, charging voltage table 4, initial charge, daily battery charging switch 5, battery voltage selector switch 6, charge button 7, reversal connection indicator light 8, stop indicator light 9, charging current table 10, automatically, manual selection switch 11, first, second stage selector switch 12, stop button 13, compensation button 14, nameplate 15 etc. form.Cabinet 1 top is provided with four suspension ring, is convenient to installation, carrying and packing, and shutter is established in top, the left and right sides, and there are four pin the below, and front and back have opening angle to fan door greater than two of 135 degree.Cabinet 1 bottom surface is not sealed, and is convenient to the I/O cable turnover, is convenient to cold air yet and flows into from the bottom, flows out from top shutter to form convection current.Three phase rectifier full-bridge, shunt, current transformer, current relay, residual current circuit breaker, A.C. contactor, the time relay, miniature relay, discharge resistance, capacitor, lightning arrester are installed in the cabinet 1.It is characterized in that: capacitor divides three-phase to install, whenever, divide four groups mutually, by four A.C. contactor controls, four A.C. contactors are by initial charge, daily battery charging switch 5 and 12 controls of first, second stage selector switch, adjust the capacity of every group of electric capacity, can satisfy the different charge in batteries needs of capacity; Two time relays are controlled phase I and second stage charging interval respectively; The output both positive and negative polarity of the both positive and negative polarity of storage battery and charger connect instead when miniature relay was used to prevent to charge; Residual current circuit breaker is the total power switch of this energy-conservation charging, the dual-purpose machine of reactive power compensation, and the reliable deenergization of energy prevents that security incident from taking place when situations such as generation insulation breakdown; Current transformer cooperates with current relay, realizes zero-sequenceprotection, during phenomena of the failure such as respective capacitances is damaged when taking place, indivedual A.C. contactor damage, ground connection, short circuit, electric leakage, shields; Lightning arrester is used to prevent switching overvoltage or Lightning Over-voltage; Discharge resistance is used for automatically the electric weight that stores on the capacitor being bled off when this energy-conservation charging, when the dual-purpose machine of reactive power compensation quits work, in order to avoid the electrician gets an electric shock when overhauling; Charging voltage table 4 is attempted by on the output loop, monitors battery tension or charging voltage; Charging current table 10 is serially connected with on the output loop, monitors charging current; Charge button 7 and the locking each other of compensation button 14, when this energy-conservation charging, the dual-purpose machine of reactive power compensation during, does not start compensation button 14, when the energy-conservation charging of basis, when the dual-purpose machine of reactive power compensation uses as reactive power compensation device in charging, do not start charge button 7, the dc output end no-voltage.
Characteristics of the present invention: 1, energy-efficient.This energy-conservation charging, the dual-purpose machine of reactive power compensation be without transformer, without controllable silicon, and no-harmonic wave pollution, the work of step-down current stabilization electric capacity is not generated heat, and the active energy of consumption is few.2, the present invention is an energy-conservation constant current charger, is again a power system reactive power compensation arrangement, when using the present invention to charge in batteries, can also improve power factor of electric network, improves power supply quality, reduces the loss of voltage, improves transmitting capacity of the electric wire netting.3, this energy-conservation charging, reactive power compensation machine in charging process all the time, charging current is invariable, can guarantee that the storage battery abundance is full of.4, this energy-conservation charging, reactive power compensation machine are not afraid of short circuit, and direct current is exported both positive and negative polarity with the direct short circuit of lead, and charger can be switched on to starting in the same old way and can not damaged.5, the present invention can adapt to the change in voltage of storage battery, when by the list that filled every the storage battery number 1-80 variation, when promptly battery tension changes, can directly start this energy-conservation charging between 2-160 lies prostrate, the dual-purpose machine of reactive power compensation charges.6, forget the harm of shutdown to storage battery for after avoiding starting energy-saving charging, the dual-purpose machine of reactive power compensation, be provided with the time relay in the circuit, the storage battery abundance is full of the back autostop.7, the adjustment of output DC stream obtains the capacitance of various combination by adjusting the capacitor that four pool-sizes do not wait, and satisfies the needs of different capabilities charge in batteries.8, the charge button 7 of this energy-conservation charging, the dual-purpose machine of reactive power compensation and the locking each other of compensation button 14, when originally energy-conservation constant current charge, the dual-purpose machine of reactive power compensation are in charging, do not start compensation button 14, when this energy-conservation constant current charge, when the dual-purpose machine of reactive power compensation uses as reactive power compensator, do not start charge button 7, the dc output end no-voltage.
Description of drawings:
Fig. 1 is a front view of the present invention, and Fig. 2 is the front view after Fig. 1 removes the Qianmen, and Fig. 3 is the end view of Fig. 1, and Fig. 4 is the rearview that Fig. 1 removes the back door.Among Fig. 1, cabinet 1, compensation indicator light 2, charging indicator light 3, charging voltage table 4, initial charge, daily battery charging switch 5, battery voltage selector switch 6, charge button 7, reversal connection indicator light 8, stop indicator light 9, charging current table 10, automatically, manual selection switch 11, first, second stage selector switch 12, stop button 13, compensation button 14, nameplate 15.Among Fig. 2, suspension ring 16; Electric elements plate 17, on adorn three phase rectifier full-bridge, shunt, current transformer, current relay, residual current circuit breaker, A.C. contactor, the time relay, miniature relay, discharge resistance, zinc oxide arrester; Capacitor board 18, on adorn four group capacitors and bakelite plate, four terminal screws are arranged on the bakelite plate, be used to install four groups of electric capacity to the connection lead between the rectification full-bridge.Among Fig. 3, cabinet door lock 19.Among Fig. 4, the terminal screw on the bakelite plate 20 is for the usefulness that connects AC power and output both positive and negative polarity cable.
Embodiment:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, four suspension ring are established in cabinet 1 top, and shutter is established in top, the left and right sides, and four pin are established in the below, and the two fan doors of opening angle greater than 135 degree are established in front and back, and cabinet 1 bottom surface need not be sealed.Three phase rectifier full-bridge, shunt, current transformer, current relay, residual current circuit breaker, A.C. contactor, the time relay, miniature relay, discharge resistance, capacitor, lightning arrester are installed in the cabinet 1.Compensation indicator light 2, charging indicator light 3, charging voltage table 4, initial charge, daily battery charging switch 5, battery voltage selector switch 6, charge button 7, reversal connection indicator light 8 be installed on cabinet 1 Qianmen, stopped indicator light 9, charging current table 10, automatically, manual selection switch 11, first, second stage selector switch 12, stop button 13, compensation button 14, nameplate 15.
Claims (9)
1, a kind of energy-saving charging, the dual-purpose machine of reactive power compensation, it is characterized in that: form by cabinet (1) and circuit two large divisions, four suspension ring are established in cabinet (1) top, shutter is established in top, the left and right sides, four pin are established in the below, the two fan doors of opening angle greater than 135 degree are established in front and back, do not seal at the bottom of the cabinet, the three phase rectifier full-bridge is installed in the cabinet (1), shunt, current transformer, current relay, residual current circuit breaker, A.C. contactor, the time relay, miniature relay, discharge resistance, capacitor, lightning arrester is installed compensation indicator light (2) on cabinet (1) Qianmen, charging indicator light (3), charging voltage table (4), initial charge, daily battery charging switch (5), battery voltage selector switch (6), charge button (7), reversal connection indicator light (8), stop indicator light (9), charging current table (10), automatically, manual selection switch (11), first, second stage selector switch (12), stop button (13), compensation button (14), nameplate (15).
2, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: capacitor divides three-phase to install, whenever, divide four groups mutually, by four A.C. contactor controls, four A.C. contactors are by initial charge, daily battery charging switch (5) and the control of first, second stage selector switch (12), adjust the capacity of every group of electric capacity, can satisfy the different charge in batteries needs of capacity.
3, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: by time relay control phase I and second stage charging interval, the second stage charging finishes, and the expression storage battery is full charge, and energy-saving charging, the dual-purpose machine of reactive power compensation quit work automatically.
4, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: make reverse connecting protection with miniature relay, the output both positive and negative polarity of the both positive and negative polarity of storage battery and charger connects anti-when preventing to charge.
5, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: adopt residual current circuit breaker to make the total power switch of this energy-conservation charging, the dual-purpose machine of reactive power compensation, the reliable deenergization of energy prevents that security incident from taking place when situations such as generation insulation breakdown.
6, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation; it is characterized in that: adopt current transformer to cooperate with current relay; realize zero-sequenceprotection; during phenomena of the failure such as respective capacitances is damaged when taking place, indivedual A.C. contactor damage, ground connection, short circuit, electric leakage, shield.
7, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: adopt lightning arrester to prevent switching overvoltage or Lightning Over-voltage.
8, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: when this energy-conservation charging, when the dual-purpose machine of reactive power compensation quits work, adopt discharge resistance automatically the electric weight that stores on the capacitor to be bled off, in order to avoid the electrician gets an electric shock when overhauling.
9, according to the described energy-saving charging of claim 1, the dual-purpose machine of reactive power compensation, it is characterized in that: energy-saving charging function and reactive power compensation function electric blocking each other on circuit, when this energy-conservation charging, the dual-purpose machine of reactive power compensation during in charging, do not start compensate function, when this energy-conservation charging, when the dual-purpose machine of reactive power compensation uses as reactive power compensator, do not start charge function, the dc output end no-voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101024229A CN101557124A (en) | 2009-01-20 | 2009-01-20 | Double-purpose machine of energy-saving charging and reactive power compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101024229A CN101557124A (en) | 2009-01-20 | 2009-01-20 | Double-purpose machine of energy-saving charging and reactive power compensation |
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| Publication Number | Publication Date |
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| CN101557124A true CN101557124A (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101024229A Pending CN101557124A (en) | 2009-01-20 | 2009-01-20 | Double-purpose machine of energy-saving charging and reactive power compensation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104255A (en) * | 2011-01-28 | 2011-06-22 | 湖北网安科技有限公司 | Landscape-type miniaturized constant-temperature high-voltage reactive compensating device |
| CN102709998A (en) * | 2012-06-12 | 2012-10-03 | 六盘水金星机电设备有限公司 | Multifunctional charger |
| CN103971926A (en) * | 2014-05-07 | 2014-08-06 | 六盘水金星机电设备有限公司 | Power capacitor for charger |
-
2009
- 2009-01-20 CN CNA2009101024229A patent/CN101557124A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104255A (en) * | 2011-01-28 | 2011-06-22 | 湖北网安科技有限公司 | Landscape-type miniaturized constant-temperature high-voltage reactive compensating device |
| CN102709998A (en) * | 2012-06-12 | 2012-10-03 | 六盘水金星机电设备有限公司 | Multifunctional charger |
| CN102709998B (en) * | 2012-06-12 | 2014-10-01 | 六盘水金星机电设备有限公司 | Multifunctional charger |
| CN103971926A (en) * | 2014-05-07 | 2014-08-06 | 六盘水金星机电设备有限公司 | Power capacitor for charger |
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Open date: 20091014 |