CN1780082A - Automatic compenation of DC dynamic loading power-supply voltage drop and device thereof - Google Patents
Automatic compenation of DC dynamic loading power-supply voltage drop and device thereof Download PDFInfo
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Abstract
A method and device for automatically compensating the voltage drop of DC power supply caused by power load is disclosed. It is directly connected to the secondary side of high-voltage and-current system and a DC system is used to detect the voltage drop and perform the automatic compensating program.
Description
Technical field
The present invention relates to a kind ofly with the direct current method and apparatus that the moment pressure drop compensates automatically to line load, it is used for directly detecting and automatic compensation program with direct current system in high voltage, big its secondary side of current system of desiring to use.
Background technology
Present high-tech industry running aspect, equipment component or system comprise:
(1) clean room (CLEAN ROOM) or other are indoor has the confined space static pressure control running of relative influence with static pressure control.
(2) meeting produces and saves the gas extraction system running in poisonous volatilization gas space.
(3) can not accept owing to any factor of burst causes equipment or the system that processing or procedure for producing crash midway.
(4) can not accept owing to any factor of burst causes equipment or the system that the processing procedure of chemical reaction crashes midway.
It will have a strong impact on operating personnel's safety and cause the product on the production line bad in running in case during the power supply particularly of crashing unstable;
Therefore, for a long time for solving this difficult problem, all adopt to exchange (AC) UPS (UPS) solution, and make the technology of UPS that significant progress be arranged.
The general UPS UPS that exchanges is serially connected with power end, just a side of overall architecture; Can find that according to practical experience in fact described UPS UPS has following shortcoming:
1, high-frequency harmonic that frequency converter produces makes full the closing of variable-frequency transformer of UPS to UPS.
2, the motor starting time is 2 times of rated capacity, and the UPS capacity also need promote 2 times, otherwise UPS can break down and the jumping machine.
3, use UPS must increase by one group of passive harmonic filter.
4, the UPS design is former before this at the computer load, and the back of migrating can't be suitable fully for the big electrical load of palpuses such as motor.
5, the simple electric device of direct current that uses of UPS collocation is no problem, but during the running frequency converter, need do multistage energy conversion, and efficient is poor.
When 6, UPS used multistage energy conversion, its equipment was too complicated, becomes because of many, and failure rate increases relatively.
On the other hand, the real key factor that can cause system or equipment to crash by analysis, usually be not to inform, can predict or paroxysmal outage fully, but under the normal power supply state, institute falls in unexpected generation transient voltage to cause, so-called " moment pressure drop ", be meant voltage effective value drop to standard value (Nominal value) 10～90% between, and lasting half cycles is to the several seconds.
The equipment of industrial product or system be the equipment, nanometer, microcomputer information equipment, frequency converter etc. of accurate processing procedure such as wafer particularly, it is very responsive for the moment pressure drop with electric loading, as long as 20ms, 85～90% moment pressure drop promptly may cause the Fab process work bench to crash.And the problem of this kind electric power quality, the reason factor is numerous, comprised by contiguous feeder line or bus accident and having been caused and continue several cycles several seconds short time voltage collapse extremely, be so-called Voltage Sag or VoltageDip, or switch or electric shock etc. by capacitor, instantaneous (TRANSIENT) phenomenon that is caused, its duration is about one below week, and during stable state, the electric power quality factor of load end then is harmonic wave or voltage flicker.
The said equipment or system are and use the technical grade of high voltage, big electric current to use, because present various solutions all focus on the Alternating Current Power Supply field, the general necessary interchange of plant operation operation UPS UPS and equipment, be package plant, must plan again in addition that a large space for placing battery and UPS equipment, causes the huge burden on the cost; Obviously, use interchange UPS UPS and nonideal load moment pressure drop control and settling mode.
In view of this, the rich experiences that this case inventor spy is accumulated for many years with the research and development manufacturing of being engaged in relevant device, analyse in depth research, through permanent effort, develop this case " automatic compenation of DC dynamic loading power-supply voltage drop method and device thereof ", and in checking back discovery on probation on the spot, it really can effectively reach set practical effect target, really is a desirable invention.
Summary of the invention
The object of the present invention is to provide a kind of automatic compenation of DC dynamic loading power-supply voltage drop method and device thereof, it can be simplified the bulky complex that use to exchange the UPS equipment needed thereby, reduce failure rate and cost.
To achieve these goals, technical solution of the present invention is: a kind of automatic compenation of DC dynamic loading power-supply voltage drop method (DC VOLTAGE DIP COMPENSATION SYSTEM is called for short VDCS), and it is formed framework and includes following:
A, charhing unit
B, direct current voltage-drop compensation control unit
C, battery assembly module
D, load unit
Etc. part, wherein this direct current voltage-drop compensation control unit comprises:
A, input are handled
B, pressure drop compensate control and treatment automatically
C, output are handled
This direct current voltage-drop compensation control unit specifically is made up of debug module, input module, sensing module, control module, DC power supplier, output module, IGBT module.
VDCS is connected to DC side, just desires to execute the secondary side of dress high voltage, big current system;
Input is handled, adopt the starting auxiliary circuit of the usual use of motor institute of single-phase induction motor or Permanent Split Capacitor, use Positive Temperature Coefficient PTCR and make shunt circuit, drive voltage on the bus to predetermined value person and reach precharge in native system VDCS;
This input is handled (input module), and by SCR1, SCR2, the PTCR circuit of input positive and negative electrode, and the filtering storage capacitor between bus constitutes;
Its method is:
When system's initial activation running, the battery pack energy storage of having charged is finished; And when the VDCS of system was in normal condition, the SCR1 of system VDCS input and SCR2 were open circuit, and right electric current is via the PTCR bypass, and the electric capacity of preliminary filling between bus makes the magnitude of voltage of bus reach default value.When initial operation, because the driving voltage default value is greater than the battery pack energy pre-storage, so may command module drive IGBT module, supercharging also remains in this driving voltage default value.
Pressure drop compensates the control and treatment method automatically:
When control module was found the unexpected rapid drawdown of line voltage distribution after detecting, promptly output signal drove debug module application SCR circuit, and to input and the action of output output signal, the pressure difference that compensation output loading driving voltage is produced because of the transient voltage rapid drawdown.
Output is handled, and uses the reactance accumulator, adjusts the pressure difference that load driving voltage is produced because of the transient voltage rapid drawdown;
Its method is:
A, secondary bus are supplied to DC power supplier, handle dispensing supply control module and the required DC power supply of debug module again through power module; Power module will be preset the bus low voltage value this moment, and warp and the voltage supplied contrast of secondary bus institute when institute's voltage supplied is lower than this voltage default value really, are then confirmed output LOW voltage signal to this control module;
B, when initial running, when control module finds to have driving voltage deficiency state, because aforementioned input is only handled pre-charge pressure to capacitor, but when the driving voltage on the secondary bus is not enough, to make control module judge the driving voltage deficiency, so begin to drive the IGBT module, allow the very fast energy storage of reactor, cause the bus driver voltage boost to desirable value; And this sensing module can stop its action of IGBT module of addressing after CT (CURRENT TRANSMITTER) sensing informs that control module is confirmed, finishes compensation and is used this driving voltage;
C, this control module with confirm by the contrast of secondary bus feedback voltage after, confirm that promptly input handles that precharge is finished and fuse-switch is normal, confirm for this debug module so this control module is promptly sent signal, and finish and confirm that debug module execution signal is standby;
D, described control module are when finding the unexpected rapid drawdown of voltage, promptly drive the debug module to this input and the action of output output signal, and aforementioned bus discharged the difference of compensation because of the moment pressure drop through reactance institute tank voltage, with the output loading voltage that remains unchanged; This IGBT module is then accepted the control module signal and is carried out blower operations;
E, pressure drop be as being utmost point short time moment, then VDCS promptly can be automatically procedure operation as described above, keep standby this pre-accumulate once again and press;
F, pressure drop situation be as being outage fully, VDCS promptly can continue to operate discharged to the power supply of battery pack till.
A kind of automatic compenation of DC dynamic loading power-supply voltage drop device, it is formed framework and comprises:
A, charhing unit
B, direct current voltage-drop compensation control unit (VDCS)
C, battery assembly module
D, load unit
Direct current voltage-drop compensation control unit is for comprising the modular combination of " unsteady flow " and " boosting " two functions, and it is reached by the mutual start of following modules institute:
A, debug module (DETECING MODULE)
B, input SCR module (INPUT SCR MODULE)
C, sensing module (SENSING MODULE)
D, control module (CONTROL MODULE)
E, direct current power supply module (DC POWER SUPPLY MODULE)
F, output-scr module (OUTPUT SCR MODULE)
G, IGBT module (IGBT MODULE)
1), unsteady flow is handled:
Formed with protective circuit assembly and loop by input module PTCR, IGBT module, reactor, capacitor, filter, control circuit.
When initial, electric current is by the PTCR precharging circuit of flowing through, and with the interaction of IGBT module to provide required dacron electric current and voltage wherein, employed IGBT module is a switch module, when voltage is normal condition, if battery direct voltage deficiency, IGBT makes it in the reactor energy storage because the output signal of control module triggers the IGBT module;
2), the processing of boosting:
VDCS adopts the design of independently boosting, and battery pack all lead-acid batteries of connecting are pressurized to required voltage, and capacitor part also is the serial connection mode, independent separately cocking circuit, and while IGBT module makes it in the reactor energy storage by the output signal triggering IGBT of control module.
Each module monitors of VDCS control unit and interlock function and manner of execution are:
A, when voltage just often, the debug module detects learns all just often, normal signal is delivered to control module, this moment output-scr module attonity.
B, sensing module are learnt by current transmission device (CURRENT TRANSMITIER):
When 1), battery voltage is not enough, the voltage of offered load end is not enough, then aforesaid sensing module output abnormality signal also is sent to control module, and to send control signal by this control module be battery charge to charger, and monitoring sensing circuit control unsteady flow is handled and boosted processing.And the IGBT module makes it in the reactor energy storage by the output signal triggering IGBT (all DIODE, SCR, IGBT assembly all can produce the trigger action of the intermittent ON/OFF of continuing) of control module.
2), battery voltage is normal, then is in stand-by state.
C, when the transient voltage bust is undesired, after the debug electric circuit inspection is learnt, will send abnormal signal and be sent to control module, make output-scr module action, send standby in full-amount this voltage drop of voltage compensation.
After adopting such scheme, main its control point that is of VDCS of the present invention is positioned at the DC power supply of secondary, it is not the AC power place once, so direct DC power supply at the load end secondary, except exempting various to the relevant primary side AC power supply device of total system, system of whole factory significantly dwindles process range relatively, reduces front end problem factor.Its except fully the outage processing with generally exchange the UPS identical function, during to DC dynamo load power source voltage generation moment pressure drop, can be automatically to the load power source voltage compensation, make the load output still can keep normal output (in system, the required power supply of DC load equipment is supplied by civil power (interchange), because civil power moment pressure drop, also can cause simultaneously DC load output pressure drop, cause apparatus of load to crash even damage).
So, the present invention is applied to the automatic compenation of DC dynamic loading power-supply voltage drop of all direct current power supply part (as frequency converter) runnings, can guarantee that equipment runs well, can be because of the abnormality of no early warning moment pressure drop, power shortage pressure drop power supply and outage, and cause equipment to crash, and can continue to provide the galvanic current source to use to important load, after power down mode is got rid of, when recovering normal power supply once again, then system will recover automatically, can any influence not arranged to load.
Hence one can see that:
A, native system VDCS are applicable to the required electric device of any direct current supply in market.
B, native system VDCS are applicable to market any label frequency converter product.
Description of drawings
Fig. 1 is the voltage-drop compensation flow chart of VDCS of the present invention;
Fig. 2 is the control unit calcspar of VDCS of the present invention;
Fig. 3 is a system of the present invention line chart;
Fig. 4 is that VDCS of the present invention handles schematic diagram to the frequency converter direct current component;
When Fig. 5 was the system normal operation of being installed, VDCS detected battery compensates electric off-capacity, and charging makes the schematic flow sheet that maintenance can the moment pressure drop compensates to system at any time automatically;
When Fig. 6 was the system normal operation of being installed, VDCS detected the schematic flow sheet of battery compensates electric capacity abundance;
Fig. 7 is a system that VDCS of the present invention installs when detecting moment pressure drop or outage, and compensating direct current electric power keeps normal schematic flow sheet to keep output voltage automatically;
Fig. 8 is the monitoring flow chart of VDCS module of the present invention;
Fig. 9 is that the diversity ratio of the present invention and UPS is than schematic diagram.
Embodiment
A kind of automatic compenation of DC dynamic loading power-supply voltage drop method of the present invention (DC VOLTAGE DIPCOMPENSATION SYSTEM is called for short VDCS), it is formed framework and includes following:
A, charhing unit
B, direct current voltage-drop compensation control unit
C, battery assembly module
D, load unit
Etc. part, wherein, this direct current voltage-drop compensation control unit comprises:
A, input are handled
B, pressure drop compensate control and treatment automatically
C, output are handled
As shown in Figure 1, this direct current voltage-drop compensation control unit specifically is made up of debug module, input module, sensing module, control module, DC power supplier, output module, IGBT module.
Wherein, input handle to adopt the starting auxiliary circuit of the usual use of motor institute of a kind of single-phase induction motor or so-called Permanent SplitCapacitor, use PositiveTemperature Coefficient PTCR and make shunt circuit, drive voltage on the bus to predetermined value and reach precharge in native system VDCS.
Input is handled (input module), and by circuit such as SCR1, the SCR2 of input positive and negative electrode, PTCR, and the filtering storage capacitor between bus constitutes.
Its program as shown in Figures 1 and 2, during the initial activation of native system running, the battery pack energy storage of having charged is finished; And when the VDCS of system was in normal condition, the SCR1 of system VDCSF input and SCR2 were open circuit, and electric current is through the PTCR bypass, and the electric capacity of preliminary filling between bus makes the magnitude of voltage of bus reach default value.When initial operation, because the driving voltage default value is greater than the battery pack energy pre-storage, so may command module drive IGBT module, supercharging also remains this driving voltage default value.
And aforesaid direct current pressure drop compensates control and treatment automatically, and its method is:
When control module was found the unexpected rapid drawdown of line voltage distribution after detecting, promptly output signal drove debug module application SCR circuit, and to input and the action of output output signal, the pressure difference that is produced because of the transient voltage rapid drawdown so as to compensation output loading driving voltage.
Aforesaid output is handled, and it uses a kind of reactance accumulator, so as to adjusting the pressure difference that load driving voltage is produced because of the transient voltage rapid drawdown.
Its method is:
A, secondary bus are supplied to DC power supplier, handle dispensing supply control module and the required DC power supply of debug module again through power module; Power module will be preset the bus low voltage value this moment, and warp and the voltage supplied contrast of secondary bus institute are lower than this voltage default value really as institute's voltage supplied, then output LOW voltage signal to this control module are confirmed.
B, when initial running, when control module finds to have driving voltage deficiency state, because aforementioned input is only handled pre-charge pressure to capacitor, but when the driving voltage on the secondary bus is not enough, to make control module judge the driving voltage deficiency, so begin to drive the IGBT module, allow the very fast energy storage of reactor, cause the bus driver voltage boost to desirable value; And this sensing module can stop the institute's IGBT module of addressing action after CT (CURRENT TRANSMITTER) sensing informs that control module is confirmed, finishes compensation and standby (standby) driving voltage.
C, this control module with confirm by the contrast of secondary bus feedback voltage after, confirm that promptly input processing precharge is finished and fuse-switch is normal, confirm for this debug module so this control module is promptly sent signal, and finish and confirm debug module RUN signal standby (standby).
D, described control module are when finding the unexpected rapid drawdown of voltage, promptly drive the debug module to this input and the action of output output signal, and aforementioned bus discharged with the difference of compensation because of the moment pressure drop, the output loading voltage that remains unchanged through reactance institute tank voltage; This IGBT module is then accepted the control module signal and is carried out blower operations.
E, pressure drop be as being utmost point short time moment, then VDCS promptly can be automatically procedure operation as described above, keep standby (standby) this pre-accumulate once again and press.
F, pressure drop situation be as being outage fully, VDCS promptly can continue to operate discharged to the power supply of battery pack till.
The present invention (VDCS) is mainly that with the known difference that exchanges the UPS UPS the present invention is connected to DC side, just the secondary side of overall architecture; See also shown in Figure 9.
The present invention is the device of a kind of DC TO DC, and it uses object, can be commercially available various DC TODC device, consults shown in Figure 4.
See also Fig. 5, Figure 6 and Figure 7, under normal commercial power supply, after charger unit/rectifier unit (CHARGER/RECTIFIER) is converted to DC power supply with civil power, battery assembly module (BATTERY) is given in power supply, does threshold currents and rations the power supply and press charging and connect DC power supply in the input of converter cell (INVERTER).When it was direct current with the AC power rectification, rectifier can be with the eliminations such as unusual surging, noise and frequency instability that produced in the civil power, to offer battery assembly module (BATTERY) and the more stable and clean direct current source of converter cell (INVERTER).
And take place when unusual when civil power, being connected battery assembly module on the bus (BATTERY) provides electric energy to converter cell (INVERTER) and direct current switching controller unit (CONVERTER), make direct current output (supplying converter system), interchange output (supply control system) not have and interrupt or pressure drop phenomena, and then reach the function of the normal direct voltage of the lasting supply of power supply backup.
Below for implementing device of the present invention, its composition comprises:
A, charhing unit
B, direct current voltage-drop compensation control unit
C, battery assembly module
D, load unit
Wherein, direct current voltage-drop compensation control unit is a modular combination, has comprised " unsteady flow " and " boosting " two functions, is interacted by following modules and reaches:
A, debug module (DETECING MODULE)
B, input SCR module (INPUT SCR MODULE)
C, sensing module (SENSING MODULE)
D, control module (CONTROL MODULE)
E, direct current power supply module (DC POWER SUPPLY MODULE)
F, output-scr module (OUTPUT SCR MODULE)
G, IGBT module (IGBT MODULE)
1, unsteady flow is handled:
Formed by assemblies such as input module PTCR, IGBT module, reactor, capacitor, filter, control circuit and protective circuit and loop.
Electric current is by the PTCR precharging circuit of flowing through when initial, and with the interaction of IGBT module so that required electric current and voltage to be provided.Wherein, employed IGBT module is a kind of switch module, when voltage is normal condition, if battery direct voltage deficiency, IGBT is because the output signal of control module triggers the trigger action that all DIODE, SCR, the IGBT assemblies of IGBT all can produce the intermittent ON/OFF of continuing), make it can be in the reactor energy storage.
2, the processing of boosting:
This case VDCS adopts the design of independently boosting; battery pack all lead-acid batteries of connecting; to be pressurized to required voltage; and capacitor part also is the serial connection mode; independent separately cocking circuit is respectively arranged; the IGBT module is because the output signal of control module triggers all DIODE of IGBT simultaneously; SCR; the IGBT assembly all can produce the trigger action of the intermittent ON/OFF of continuing); make it can be in the reactor energy storage; running can reduce electric cost in the best condition; in addition; increase protective circuit in parallel, suppress surging and interference, can reduce the failure problems (as shown in Figure 7) of the assembly that boosts by its effective surging absorbability.
Each module monitors and interlock function and make flowing mode as shown in Figure 8 in the VDCS control unit of the present invention:
A, when voltage just often, the debug module detects learns all just often, normal signal is delivered to control module, this moment output-scr module attonity.
B, sensing module are learnt by current transmission device (CURRENT TRANSMITTER):
When 1, battery voltage is not enough, the voltage of offered load end is not enough, then aforesaid sensing module output abnormality signal also is sent to control module, and to send control signal by this control module be battery charge to charger, and monitoring sensing circuit control unsteady flow is handled and boosted processing.And the IGBT module is because the output signal of control module triggers the trigger action that all DIODE, SCR, the IGBT assemblies of IGBT all can produce the intermittent ON/OFF of continuing), make it can be in the reactor energy storage, the value that reaches enough loads institute palpus until voltage is standby.
2, battery voltage is normal, then is in stand-by state.
C, when the transient voltage bust is undesired, after the debug electric circuit inspection is learnt, will send abnormal signal and be sent to control module, the action of output-scr module, send standby in full-amount this voltage drop of voltage compensation, it is unaffected to make load be maintained normal output voltage.
For example SCR burns all abnormalities of D, VDCS, radiating seat is overheated, radiator fan burns inefficacy, link control, feedback signal interrupts or the like, system is owing to be high voltage, the event of big electric current, for safety, will shut down automatically and export all abnormal signals to management and control unit supervision and handle.
E, all required DC control supply of module are by the direct current power supply module.
VDCS of the present invention can independent or individual other installation, especially at direct current to direct current system, be different from traditional interchange to exchanging, or exchange system direct current.Can continue normal output for system, this kind installed at the equipment of electric mode, at the secondary side direct current component, mini property, independent unicity, low cost arranged all.And the absolute demand that is applicable to above-mentioned four kinds of effect stabilities has dangerous and critical place with it.
The topmost feature of VDCS of the present invention, be that its control point is positioned at the DC power supply of secondary, it is not the AC power place once, so direct DC power supply at the load end secondary, except exempting various to the relevant primary side AC power supply device of total system, system of whole factory significantly dwindles process range relatively, reduces front end problem factor.Its except fully the outage processing with generally exchange the UPS identical function, during to DC dynamo load power source voltage generation moment pressure drop, can be automatically to the load power source voltage compensation, make the load output still can keep normal output (in system, the required power supply of DC load equipment is supplied by civil power (interchange), because civil power moment pressure drop, also can cause simultaneously DC load output pressure drop, cause apparatus of load to crash even damage).
So, the present invention is applied to the automatic compenation of DC dynamic loading power-supply voltage drop of all direct current power supply part (as frequency converter) runnings, can guarantee that equipment runs well, can be because of the abnormality of no early warning moment pressure drop, power shortage pressure drop power supply and outage, and cause equipment to crash, and can continue to provide the galvanic current source to use to important load, after power down mode is got rid of, when recovering normal power supply once again, then system will recover automatically, can any influence not arranged to load.Hence one can see that:
A, native system VDCS are applicable to the required electric device of any direct current supply in market.
B, native system VDCS are applicable to market any label frequency converter product.
Claims (6)
1, a kind of automatic compenation of DC dynamic loading power-supply voltage drop method (DC VOLTAGE DIPCOMPENSATION SYSTEM is called for short VDCS), it is characterized in that: its framework includes following:
A, charhing unit
B, direct current voltage-drop compensation control unit
C, battery assembly module
D, load unit
This direct current voltage-drop compensation control unit comprises:
A, input are handled
B, pressure drop compensate control and treatment automatically
C, output are handled
This direct current voltage-drop compensation control unit specifically is made up of debug module, input module, sensing module, control module, DC power supplier, output module, IGBT module.
VDCS is connected to DC side, just desires to execute the secondary side of dress high voltage, big current system;
2, automatic compenation of DC dynamic loading power-supply voltage drop method as claimed in claim 1, it is characterized in that: this input is handled, adopt the usual starting auxiliary circuit that uses of motor institute of single-phase induction motor or Permanent Split Capacitor, use Positive Temperature CoefficientPTCR and make shunt circuit and reach voltage on the precharge driving bus to predetermined value person in native system VDCS;
This input is handled (input module), and by SCR1, SCR2, the PTCR circuit of input positive and negative electrode, and the filtering storage capacitor between bus constitutes;
Its method is:
When system's initial activation running, the battery pack energy storage of having charged is finished; And when the VDCS of system was in normal condition, the SCR1 of system VDCS input and SCR2 were open circuit, and right electric current is via the PTCR bypass, and the electric capacity of preliminary filling between bus makes the magnitude of voltage of bus reach default value.When initial operation, because the driving voltage default value is greater than the battery pack energy pre-storage, so may command module drive IGBT module, supercharging also remains in this driving voltage default value.
3, automatic compenation of DC dynamic loading power-supply voltage drop method as claimed in claim 1 is characterized in that: this pressure drop compensates the control and treatment method automatically and is:
When control module was found the unexpected rapid drawdown of line voltage distribution after detecting, promptly output signal drove debug module application SCR circuit, and to input and the action of output output signal, the pressure difference that compensation output loading driving voltage is produced because of the transient voltage rapid drawdown.
4, automatic compenation of DC dynamic loading power-supply voltage drop method as claimed in claim 1 is characterized in that: this output is handled, and uses the reactance accumulator, adjusts the pressure difference that load driving voltage is produced because of the transient voltage rapid drawdown;
Its method is:
A, secondary bus are supplied to DC power supplier, handle dispensing supply control module and the required DC power supply of debug module again through power module; Power module will be preset the bus low voltage value this moment, and warp and the voltage supplied contrast of secondary bus institute when institute's voltage supplied is lower than this voltage default value really, are then confirmed output LOW voltage signal to this control module;
B, when initial running, when control module finds to have driving voltage deficiency state, because aforementioned input is only handled pre-charge pressure to capacitor, but when the driving voltage on the secondary bus is not enough, to make control module judge the driving voltage deficiency, so begin to drive the IGBT module, allow the very fast energy storage of reactor, cause the bus driver voltage boost to desirable value; And this sensing module can stop its action of IGBT module of addressing after CT (CURRENT TRANSMITTER) sensing informs that control module is confirmed, finishes compensation and is used this driving voltage;
C, this control module with confirm by the contrast of secondary bus feedback voltage after, confirm that promptly input handles that precharge is finished and fuse-switch is normal, confirm for this debug module so this control module is promptly sent signal, and finish and confirm that debug module execution signal is standby;
D, described control module are when finding the unexpected rapid drawdown of voltage, promptly drive the debug module to this input and the action of output output signal, and aforementioned bus discharged the difference of compensation because of the moment pressure drop through reactance institute tank voltage, with the output loading voltage that remains unchanged; This IGBT module is then accepted the control module signal and is carried out blower operations;
E, pressure drop be as being utmost point short time moment, then VDCS promptly can be automatically procedure operation as described above, keep standby this pre-accumulate once again and press;
F, pressure drop situation be as being outage fully, VDCS promptly can continue to operate discharged to the power supply of battery pack till.
5, a kind of automatic compenation of DC dynamic loading power-supply voltage drop device, it is formed framework and comprises:
A, charhing unit
B, direct current voltage-drop compensation control unit (VDCS)
C, battery assembly module
D, load unit
It is characterized in that: direct current voltage-drop compensation control unit is for comprising the modular combination of " unsteady flow " and " boosting " two functions, and it is reached by the mutual start of following modules institute:
A, debug module (DETECING MODULE)
B, defeated SCR module (INPUT SCR MODULE)
C, sensing module (SENSING MODULE)
D, control module (CONTROL MODULE)
E, direct current power supply module (DC POWER SUPPLY MODULE)
F, output-scr module (OUTPUT SCR MODULE)
G, IGBT module (IGBT MODULE)
1), unsteady flow is handled:
Formed with protective circuit assembly and loop by input module PTCR, IGBT module, reactor, capacitor, filter, control circuit.
When initial, electric current is by the PTCR precharging circuit of flowing through, and with the interaction of IGBT module to provide required dacron electric current and voltage wherein, employed IGBT module is a switch module, when voltage is normal condition, if battery direct voltage deficiency, IGBT makes it in the reactor energy storage because the output signal of control module triggers the IGBT module;
2), the processing of boosting:
VDCS adopts the design of independently boosting, and battery pack all lead-acid batteries of connecting are pressurized to required voltage, and capacitor part also is the serial connection mode, independent separately cocking circuit, and while IGBT module makes it in the reactor energy storage by the output signal triggering IGBT of control module.
6, automatic compenation of DC dynamic loading power-supply voltage drop device as claimed in claim 5 is characterized in that: each module monitors of VDCS control unit and interlock function and manner of execution are:
A, when voltage just often, the debug module detects learns all just often, normal signal is delivered to control module, this moment output-scr module attonity.
B, sensing module are learnt by current transmission device (CURRENT TRANSMITTER):
When 1), battery voltage is not enough, the voltage of offered load end is not enough, then aforesaid sensing module output abnormality signal also is sent to control module, and to send control signal by this control module be battery charge to charger, and monitoring sensing circuit control unsteady flow is handled and boosted processing.And the IGBT module makes it in the reactor energy storage by the output signal triggering IGBT (all DIODE, SCR, IGBT assembly all can produce the trigger action of the intermittent ON/OFF of continuing) of control module.
2), battery voltage is normal, then is in stand-by state.
C, when the transient voltage bust is undesired, after the debug electric circuit inspection is learnt, will send abnormal signal and be sent to control module, make output-scr module action, send standby in full-amount this voltage drop of voltage compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410091456 CN1780082A (en) | 2004-11-24 | 2004-11-24 | Automatic compenation of DC dynamic loading power-supply voltage drop and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200410091456 CN1780082A (en) | 2004-11-24 | 2004-11-24 | Automatic compenation of DC dynamic loading power-supply voltage drop and device thereof |
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| CN1780082A true CN1780082A (en) | 2006-05-31 |
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| CN 200410091456 Pending CN1780082A (en) | 2004-11-24 | 2004-11-24 | Automatic compenation of DC dynamic loading power-supply voltage drop and device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549877A (en) * | 2009-11-11 | 2012-07-04 | 美商源捷有限公司 | Interlock mechanism for a multiple battery pack |
| CN105845997A (en) * | 2016-04-28 | 2016-08-10 | 苏州工业园区职业技术学院 | Voltage stability monitoring apparatus used for power battery |
-
2004
- 2004-11-24 CN CN 200410091456 patent/CN1780082A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102549877A (en) * | 2009-11-11 | 2012-07-04 | 美商源捷有限公司 | Interlock mechanism for a multiple battery pack |
| CN102549877B (en) * | 2009-11-11 | 2015-11-25 | 美商源捷有限公司 | The interlock mechanism of many battery pack |
| CN105845997A (en) * | 2016-04-28 | 2016-08-10 | 苏州工业园区职业技术学院 | Voltage stability monitoring apparatus used for power battery |
| CN105845997B (en) * | 2016-04-28 | 2018-12-21 | 苏州工业园区职业技术学院 | A kind of voltage stability monitoring device for power battery |
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