CN1372177A - Constant current and voltage regulator and electricity recharger using said regulator - Google Patents
Constant current and voltage regulator and electricity recharger using said regulator Download PDFInfo
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- CN1372177A CN1372177A CN 02115012 CN02115012A CN1372177A CN 1372177 A CN1372177 A CN 1372177A CN 02115012 CN02115012 CN 02115012 CN 02115012 A CN02115012 A CN 02115012A CN 1372177 A CN1372177 A CN 1372177A
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- 238000013461 design Methods 0.000 claims description 5
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- 238000010281 constant-current constant-voltage charging Methods 0.000 claims description 4
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Abstract
This invention provides a constant current and voltage modulator and a charger, the modulator contains a current modalator a voltage modulator and pulse-width modulating circuit with the target value of the constant current output and the actual current value as the input signal of the current modulator and the reference voltage value and the actual output voltage as the input signal of the voltage modulator while the output signal of the voltage modulator is connected to the pulse-width modulating circuit directly or indirectly said current modulator is in series with voltage modulator, and the output value of the current modualtor will be the basis of changing the output target value of the voltage modulator to control the charging current indirectly by modulating the otput voltage of the charger to avoid the vibration due to the switch to the logical circuit to realize the constant current and voltage control as well.
Description
Technical field:
The present invention relates to a kind of constant current constant voltage regulator, relate in particular to a kind of constant-current constant-voltage charging device that uses this constant current constant voltage regulator.
Background technology:
In existing charger, the charger that the constant voltage charge function only arranged is put when charging again after losing at battery, may current charge occur and causes the battery useful capacity to descend; For improving the charger performance, charger is still needed and is possessed the constant-current charge characteristic, thereby needs to increase current controller, i.e. current regulator.According to this requirement, present solution mainly contains:
1. battery current regulator and cell voltage regulator, its output is switched by logical circuit, and its annexation is as shown in Figure 1.Its shortcoming is: when two loops switched mutually, the output quantity of two regulators was directly switched, and was difficult for realizing seamlessly transitting of output, and design difficulty increases.
2, charger limit power operation, its ultimate principle are restriction charger power inputs, thus restriction charger output power, the charging current of limit battery indirectly.This mode only be a kind of current-limiting mode, thereby constant current accuracy is poor in essence.Current control mode is the peak value control mode simultaneously, need overcome the defective of higher hamonic wave vibration, and peak value detects noise ratio responsive simultaneously.
Summary of the invention:
Purpose of the present invention is exactly in order to overcome the above problems, and a kind of constant current constant voltage regulator is provided and uses the charger of this constant current constant voltage regulator, reduces the defective of output vibration.
For achieving the above object, the constant current constant voltage regulator that the present invention proposes and use the charger of this constant current constant voltage regulator to comprise current regulator (IBATT_reg), voltage regulator (VBATT_reg) and pulse-width modulation circuit (PWM), constant current export target value (IBATT_ref) and actual current value (IBATT) are as the input signal of current regulator (IBATT_reg), reference voltage level (VBATT_ref) and actual output voltage (VBATT) are as the input signal of voltage regulator (VBATT_reg), the output signal of voltage regulator (VBATT_reg) directly or indirectly is connected to pulse-width modulation circuit, it is characterized in that: described current regulator (IBATT_reg) is in series with voltage regulator (VBATT_reg), and the output valve of current regulator (IBATT_reg) is as the basis of design of the export target value that changes voltage regulator (VBATT_reg).
Owing to adopted above scheme, the output of described current regulator is as the foundation that changes the voltage regulator setting value, control charging current indirectly by regulating the charger output voltage, thereby avoid realizing constant current constant voltage control again because logical circuit switches the vibration that causes.
Description of drawings:
Fig. 1 is the core control block diagram of the constant-current constant-voltage charging device of prior art;
Fig. 2 is the charger power circuit figure that three-phase pulse width modulated circuit (PWM) rectifier constitutes;
Fig. 3 is the core control block diagram of constant voltage constant current regulator of the present invention;
Fig. 4 is the concrete control block diagram of constant current constant voltage regulator specific embodiment of the present invention;
The concrete control block diagram of another specific embodiment of Fig. 5 constant current constant voltage regulator of the present invention;
Fig. 6 is the polar plot of three-phase pulse width modulated circuit (PWM) rectifier.
Embodiment:
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Be illustrated in figure 3 as the core control block diagram of constant voltage constant current regulator of the present invention, describe with the example that is applied as of constant voltage constant current regulator in battery charger among the embodiment.The constant current constant voltage regulator comprises current regulator IBATT_reg, voltage regulator VBATT_reg and pulse-width modulation circuit PWM, after described current regulator IBATT_reg and voltage regulator VBATT_reg are in series, link to each other with pulse-width modulation circuit PWM through other controlling unit (promptly indirect).Certainly also can directly link to each other with pulse-width modulation circuit.Constant current export target value IBATT_ref and actual current value IBATT are as the input signal of current regulator IBATT_reg, the average cell charging current value of described actual current value IBATT for detecting, promptly described current regulator is an average cell current controller.Charger reference voltage level VBATT_ref and actual charger output voltage V BATT are as the input signal of voltage regulator VBATT_reg, and the output valve of current regulator IBATT_reg is as the basis of design of the export target value that changes voltage regulator VBATT_reg.
Be illustrated in figure 4 as the control block diagram of constant current constant voltage regulator specific embodiment of the present invention, this constant current constant voltage regulator comprises current regulator IBATT_reg, voltage regulator VBATT_reg, amplitude limiter circuit and circuit of power factor correction, and the output terminal of current regulator IBATT_reg is connected to the input end of voltage regulator VBATT_reg through amplitude limiter circuit; Its output valve maybe should value with charging voltage desired value (VBATT_obj) and as the reference voltage level VBATT_ref of voltage regulator VBATT_reg.In addition, also comprise amplitude limiter circuit, amplitude limiter circuit is series between current regulator (IBATT_reg) and the voltage regulator (VBATT_reg), and amplitude limiter circuit is to prevent that the charger output voltage is too high, therefore only need limit getting final product the mxm. of reference voltage level (VBATT_ref).Current regulator IBATT_reg is a dead-band regulator, and its control model is a relay mode, and voltage regulator VBATT_reg is PI (proportional integral) regulator.
Circuit of power factor correction comprises electric current coordinate converter 3s/2R, electric current phase lock circuitry PLL, electric current decoupling zero translation circuit LW, active current regulator id_reg and reactive current regulator iq_reg.To be input voltage uA, uB, uC be tied to the phase-locked of the coordinate transform of rotating coordinate system and input current from static coordinate to electric current phase lock circuitry PLL.The input termination three-phase alternating current input current iA of electric current coordinate converter 3s/2R, iB, iC, the phase angle of electric current phase lock circuitry PLL output is as the angle of transformation of electric current coordinate converter 3s/2R; The real component of electric current coordinate converter (3S/2R) and the output terminal of idle component are connected to electric current decoupling zero translation circuit (LW) respectively, the difference of the output current real component (id) of electric current coordinate converter and the output signal of voltage regulator (VBATT_reg) is as the input signal of active power regulator (id_reg), and the output current idle component (iq) of electric current coordinate converter (3S/2R) and the difference of input current idle component echo signal (iq_ref) are as the input signal of reactive power regulator; The input termination three-phase alternating current input voltage (uA, uB, uC) of electric current phase lock circuitry (PLL), the active voltage component (ud) of its output is respectively with the output signal of active power regulator (id_reg) with through the difference of the idle component of the decoupling zero meritorious control signal as described pulse-width modulation circuit (PWM), and the reactive voltage component (uq) of electric current phase lock circuitry (PLL) output is respectively with the output signal of reactive power regulator with through the difference of the real component of the decoupling zero idle control signal as described pulse-width modulation circuit.
Be the charger power circuit figure that three-phase pulse width modulated circuit PWM rectifier constitutes as shown in Figure 2; Fig. 6 is the polar plot of three-phase pulse width modulated circuit PWM rectifier; The constant current constant voltage regulator applications of above-mentioned specific embodiment is as follows in the principle of work of this charger:
Inductive drop vector UL is the phasor difference of input voltage vector Ui and rectifier bridge AC side voltage vector Ur, the vector of input current real component id and input current idle component iq and be inductive current vector Ii.The voltage U r of control rectifier bridge AC side can control electric current Ii on the inductance, and inductive current is divided into two parts---resistive component id and reaction component iq, the power factor of control reaction component control input, control resistive component control charger output voltage.Charger voltage regulator VBATT_reg is responsible for providing the desired value of active current, when the charger output voltage is higher, reduces the desired value of active current, otherwise, the desired value of rising active current.Actual charge current size-controlled in the charger output voltage, when actual charge current is higher than constant current export target value IBATT_ref, reduce charger reference voltage level VBATT_ref, otherwise when actual charge current is lower than constant current export target value IBATT_ref, rising charger reference voltage level VBATT_ref, thus actual charge current is maintained desired value.If battery does not articulate or battery fills when satisfying, charger reference voltage level VBATT_ref need do amplitude limiting processing, is up to the float charge voltage desired value.
As Fig. 4 and shown in Figure 6, the active current direction of input active current regulator id_reg is identical with the input voltage vector direction, and this regulator is according to the needs of charger output voltage, and the size of active current is imported in control.The size of control input reactive current, can change the phase place of input current iA, iB, iC and input voltage uA, uB, uC, thereby the power factor (PF) of control input side, in the real system, wish input current and input voltage in the same way, this moment input power factor=1, therefore, the desired value iq_ref of this regulator is set at 0.Electric current coordinate converter 3s/2R is input current is tied to rotating coordinate system from static coordinate coordinate transform 3S/2R, be the convenience in the control, detected three-phase input current iA, iB, iC through coordinate transform, are converted to real component id and the idle component iq of input current iA, iB, iC.Its transformation relation is: i
d=cos (wt) * iA+cos (wt-120 °) * iB+cos (wt+120 °) * iCi
q=-sin (wt) * iA-sin (wt-120 °) * iB-sin (wt+120 °) * iC electric current phase lock circuitry PLL is that input voltage uA, uB, uC are tied to the coordinate transform of rotating coordinate system and the phase-locked PLL of input current from static coordinate.Use the correlation theory of Electric Machine Control, after input voltage uA, uB, uC conversion, electric current be transformed into two-phase rotating coordinate system (dq coordinate system) from the three phase static coordinate system, the control of three-phase alternating current amount can be converted to the control of two-phase DC quantity, be the convenience on analyzing and controlling, the d axle of rotating coordinate system is oriented on the input voltage vector, therefore, the real component size of input voltage and input voltage vector mould appearance etc., input current idle component desired value (iq-ref) gets 0, that is: ud=UiUq=0Ui is provided by the PARK conversion: u
a=(2uA-uB-uC) ÷ 3,
Wt is the phase place of A phase voltage, is used for the coordinate transform of input current.Being calculated as follows of real component id and A phase voltage phase place:
Wt=arccos (u
a÷ u
i) the wt angle converts according to quadrant
The PWM rectifier is in the controlling models of rotating coordinate system, and active current component and reactive current component influence each other, and coupling is promptly arranged.Its coupling amount size is LWiq and Lwid, for realizing both independent control, introduces electric current decoupling zero translation circuit LW, is used for decoupling zero.
Be the control block diagram of another specific embodiment of constant current constant voltage regulator of the present invention as shown in Figure 5, the constant current constant voltage regulator comprises current regulator IBATT_reg, voltage regulator VBATT_reg, switch logic and pulse-width modulation circuit PWM, current regulator IBATT_reg and voltage regulator VBATT_reg are linear regulator, current regulator IBATT_reg connects with voltage regulator VBATT_reg through switch logic, and the output terminal of voltage regulator VBATT_reg is connected to pulse-width modulation circuit PWM.Constant current export target value IBATT_ref and actual current value IBATT are as the input signal of current regulator IBATT_reg, the output valve of current regulator IBATT_reg is as the variation delta VBATT_ref of voltage regulator VBATT_reg reference, it and charging voltage desired value be VBATT-obj's and as the reference voltage level VBATT_ref of voltage regulator VBATT_reg, and reference voltage level VBATT_ref and actual charger output voltage V BATT are as the input signal of voltage regulator VBATT_reg.Switch logic is as follows:
Battery current regulator IBATT_reg is defaulted as off-state, when the charging current of reality was higher than constant current export target value IBATT_ref, battery current regulator IBATT_reg inserted, equalizing charge of battery, at this moment, battery current maintains constant current export target value IBATT_ref.After the charger output voltage is near the even charging voltage desired value, disconnect battery current regulator IBATT_reg, the battery constant-voltage charge; If battery current is greater than constant current export target value IBATT_ref, closed once more battery current regulator IBATT_reg; If battery does not insert, battery current regulator IBATT_reg is an off-state.The connection of battery current regulator IBATT_reg and the process of closing, change be the desired value VBATT_ref of voltage regulator VBATT_reg, progressively transition, and can not cause the vibration of output.
Therefore constant current constant voltage regulator of the present invention also can be used for other DC stable power supply, and not only is confined to the application of charger owing to have the constant current constant voltage control characteristic.
Claims (9)
1, a kind of constant current constant voltage regulator, in order to regulate the output voltage and the electric current of DC stable power supply, comprise current regulator (IBATT_reg), voltage regulator (VBATT_reg) and pulse-width modulation circuit (PWM), constant current export target value (IBATT_ref) and actual current value (IBATT) are as the input signal of current regulator (IBATT_reg), reference voltage level (VBATT_ref) and actual output voltage (VBATT) are as the input signal of voltage regulator (VBATT_reg), the output signal of voltage regulator (VBATT_reg) directly or indirectly is connected to pulse-width modulation circuit, it is characterized in that: described current regulator (IBATT_reg) is in series with voltage regulator (VBATT_reg), and the output valve of current regulator (IBATT_reg) is as the basis of design of the export target value that changes voltage regulator (VBATT_reg).
2, constant current constant voltage regulator as claimed in claim 1 is characterized in that: the average current value that described actual current value (IBATT) is exported for the DC stable power supply that detects.
3, constant current constant voltage regulator as claimed in claim 1 or 2, it is characterized in that: the output valve of current regulator (IBATT_reg) is as the Voltage Reference variable quantity (Δ VBATT_ref) of voltage regulator (VBATT_reg), it and voltage-target (VBATT_obj) and as the reference voltage level (VBATT_ref) of voltage regulator (VBATT_reg).
4, constant current constant voltage regulator as claimed in claim 1 or 2, it is characterized in that: described constant current constant voltage regulator also comprises amplitude limiter circuit, described amplitude limiter circuit is series between current regulator (IBATT_reg) and the voltage regulator (VBATT_reg), described current regulator (IBATT_reg) is a dead-band regulator, and its control model is a relay mode.
5, constant current constant voltage regulator as claimed in claim 1 or 2, it is characterized in that: described constant current constant voltage regulator also comprises circuit of power factor correction, and this circuit of power factor correction comprises electric current coordinate converter (3S/2R), electric current phase lock circuitry (PLL), electric current decoupling zero translation circuit (LW), active current regulator (id_reg) and reactive current regulator (iq_reg); The input termination three-phase alternating current input current (iA, iB, iC) of electric current coordinate converter (3S/2R); The phase angle of electric current phase lock circuitry (PLL) output is as the angle of transformation of electric current coordinate converter (3s/2R), the real component of electric current coordinate converter (3S/2R) and the output terminal of idle component are connected to electric current decoupling zero translation circuit (LW) respectively, the difference of the output current real component (id) of electric current coordinate converter and the output signal of voltage regulator (VBATT_reg) is as the input signal of active power regulator (id_reg), and the output current idle component (iq) of electric current coordinate converter (3S/2R) and the difference of input current idle component echo signal (iq_ref) are as the input signal of reactive power regulator; The input termination three-phase alternating current input voltage (uA, uB, uC) of electric current phase lock circuitry (PLL), the active voltage component (ud) of its output is respectively with the output signal of active power regulator (id_reg) with through the difference of the idle component of the decoupling zero meritorious control signal as described pulse-width modulation circuit (PWM), and the reactive voltage component (uq) of electric current phase lock circuitry (PLL) output is respectively with the output signal of reactive power regulator with through the difference of the real component of the decoupling zero idle control signal as described pulse-width modulation circuit.
6, a kind of charger that uses constant current constant voltage regulator as claimed in claim 1, comprise current regulator (IBATT_reg), voltage regulator (VBATT_reg) and pulse-width modulation circuit (PWM), in order to regulate the output voltage and the electric current of charger, constant current export target value (IBATT_ref) and actual current value (IBATT) are as the input signal of current regulator (IBATT_reg), reference voltage level (VBATT_ref) and actual output voltage (VBATT) are as the input signal of voltage regulator (VBATT_reg), the output signal of voltage regulator (VBATT_reg) directly or indirectly is connected to pulse-width modulation circuit, it is characterized in that: described current regulator (IBATT_reg) is in series with voltage regulator (VBATT_reg), and the output valve of current regulator (IBATT_reg) is as the basis of design of the export target value that changes voltage regulator (VBATT_reg).
7, charger as claimed in claim 6, it is characterized in that: the average current value that described actual current value (IBATT) is exported for the DC stable power supply that detects, the output valve of current regulator (IBATT_reg) is as the Voltage Reference variable quantity (Δ VBATT_ref) of voltage regulator (VBATT_reg), the output voltage desired value (VBATT_obj) of it and DC stable power supply and as the reference voltage level (VBATT_ref) of voltage regulator.
8, as claim 6 or 7 described constant-current constant-voltage charging devices, it is characterized in that: described constant current constant voltage regulator also comprises amplitude limiter circuit, described amplitude limiter circuit is series between current regulator (IBATT_reg) and the voltage regulator (VBATT_reg), described current regulator (IBATT_reg) is a dead-band regulator, and its control model is a relay mode.
9, constant-current constant-voltage charging device as claimed in claim 6, it is characterized in that: also comprise switch logic, described current regulator is a linear regulator, current regulator (IBATT_reg) links to each other with voltage regulator (VBATT_reg) by switch logic, the average current value that described actual current value (IBATT) is exported for the DC stable power supply that detects, the output valve of current regulator (IBATT_reg) is as the Voltage Reference variable quantity (Δ VBATT_ref) of voltage regulator (VBATT_reg), it and charging voltage desired value (VBATT_obj) and as the reference voltage level (VBATT_ref) of voltage regulator (VBATT_reg); Described switch logic is as follows:
When the output current of the DC stable power supply of being regulated when this constant current constant voltage regulator was higher than constant current export target value (IBATT_ref), turn-on current regulator (IBATT_reg) made output current maintain constant current export target value (IBATT_ref); After the output voltage of this DC stable power supply is near the even charging voltage desired value, turn-off current regulator (IBATT_reg);
When the DC stable power supply of being regulated when powering on for the first time, current regulator (IBATT_reg) disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021150125A CN1159632C (en) | 2002-03-28 | 2002-03-28 | Constant current and voltage regulator and electricity recharger using said regulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021150125A CN1159632C (en) | 2002-03-28 | 2002-03-28 | Constant current and voltage regulator and electricity recharger using said regulator |
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| Publication Number | Publication Date |
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| CN1372177A true CN1372177A (en) | 2002-10-02 |
| CN1159632C CN1159632C (en) | 2004-07-28 |
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| CNB021150125A Expired - Lifetime CN1159632C (en) | 2002-03-28 | 2002-03-28 | Constant current and voltage regulator and electricity recharger using said regulator |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102042167A (en) * | 2010-12-15 | 2011-05-04 | 北京金风科创风电设备有限公司 | Pitch regulating device and wind driven generator |
| CN102195326A (en) * | 2011-05-27 | 2011-09-21 | 东莞珂立斯电源技术有限公司 | Charge control method of small power battery |
| CN102467148A (en) * | 2010-11-11 | 2012-05-23 | 中兴通讯股份有限公司 | Switching power supply approximate constant power control device and method |
| CN103107562A (en) * | 2011-11-09 | 2013-05-15 | 珠海全志科技股份有限公司 | Switch charging circuit and power management system |
| CN103746568A (en) * | 2013-12-17 | 2014-04-23 | 中国船舶重工集团公司第七一九研究所 | Compact sine constant-current dimming device |
| CN109947161A (en) * | 2017-12-20 | 2019-06-28 | 致茂电子(苏州)有限公司 | The control method of power system and power system |
| CN111244932A (en) * | 2020-02-24 | 2020-06-05 | 国网江苏省电力有限公司 | Energy storage multi-working-condition operation control method and device for energy router |
| CN111267648A (en) * | 2018-12-04 | 2020-06-12 | 西安许继电力电子技术有限公司 | Bidirectional charging and discharging system of electric automobile and control method thereof |
| CN111293710A (en) * | 2018-12-10 | 2020-06-16 | 西安许继电力电子技术有限公司 | Bidirectional charge and discharge control system and control method for electric automobile |
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2002
- 2002-03-28 CN CNB021150125A patent/CN1159632C/en not_active Expired - Lifetime
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| CN102467148B (en) * | 2010-11-11 | 2014-03-19 | 中兴通讯股份有限公司 | Switching power supply approximate constant power control device and method |
| CN102467148A (en) * | 2010-11-11 | 2012-05-23 | 中兴通讯股份有限公司 | Switching power supply approximate constant power control device and method |
| CN102042167A (en) * | 2010-12-15 | 2011-05-04 | 北京金风科创风电设备有限公司 | Pitch regulating device and wind driven generator |
| CN102195326A (en) * | 2011-05-27 | 2011-09-21 | 东莞珂立斯电源技术有限公司 | Charge control method of small power battery |
| CN103107562B (en) * | 2011-11-09 | 2014-12-31 | 珠海全志科技股份有限公司 | Switch charging circuit and power management system |
| CN103107562A (en) * | 2011-11-09 | 2013-05-15 | 珠海全志科技股份有限公司 | Switch charging circuit and power management system |
| CN103746568A (en) * | 2013-12-17 | 2014-04-23 | 中国船舶重工集团公司第七一九研究所 | Compact sine constant-current dimming device |
| CN103746568B (en) * | 2013-12-17 | 2015-12-02 | 中国船舶重工集团公司第七一九研究所 | The sinusoidal constant current light modulating device of a kind of compact |
| CN109947161A (en) * | 2017-12-20 | 2019-06-28 | 致茂电子(苏州)有限公司 | The control method of power system and power system |
| CN111267648A (en) * | 2018-12-04 | 2020-06-12 | 西安许继电力电子技术有限公司 | Bidirectional charging and discharging system of electric automobile and control method thereof |
| CN111293710A (en) * | 2018-12-10 | 2020-06-16 | 西安许继电力电子技术有限公司 | Bidirectional charge and discharge control system and control method for electric automobile |
| CN111293710B (en) * | 2018-12-10 | 2023-09-29 | 西安许继电力电子技术有限公司 | Bidirectional charge and discharge control system of electric automobile and control method thereof |
| CN111244932A (en) * | 2020-02-24 | 2020-06-05 | 国网江苏省电力有限公司 | Energy storage multi-working-condition operation control method and device for energy router |
| CN111244932B (en) * | 2020-02-24 | 2021-07-06 | 国网江苏省电力有限公司 | Energy storage multi-working-condition operation control method and device for energy router |
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|---|---|
| CN1159632C (en) | 2004-07-28 |
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Address after: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee after: Vitamin Technology Co., Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: Aimosheng Network Energy Source Co., Ltd. |
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Granted publication date: 20040728 |
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