WO2021017388A1 - Dispositif de commande de courant en anneau cc-cc, procédé de commande, appareil électronique et support - Google Patents

Dispositif de commande de courant en anneau cc-cc, procédé de commande, appareil électronique et support Download PDF

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WO2021017388A1
WO2021017388A1 PCT/CN2019/128541 CN2019128541W WO2021017388A1 WO 2021017388 A1 WO2021017388 A1 WO 2021017388A1 CN 2019128541 W CN2019128541 W CN 2019128541W WO 2021017388 A1 WO2021017388 A1 WO 2021017388A1
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Prior art keywords
terminal
voltage
switch
positive
diode
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PCT/CN2019/128541
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English (en)
Chinese (zh)
Inventor
李锐
代辉
金辉
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杭州中恒电气股份有限公司
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Publication of WO2021017388A1 publication Critical patent/WO2021017388A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load

Definitions

  • the invention relates to the technical field of converters, in particular to a DCDC circulating current control device, a control method, electronic equipment and a medium.
  • a converter can convert a DC voltage into other DC voltages (for example, converting 3.0V to 1.5V or 5.0V), we call this converter a DCDC converter, or a switching power supply or a switching regulator .
  • this converter a DCDC converter, or a switching power supply or a switching regulator .
  • a DCDC converter or a switching power supply or a switching regulator .
  • the distributed power system is a large-capacity power system composed of several small-capacity power modules.
  • the distributed power system can be composed of series, parallel, and mixed series and parallel.
  • the output current of the power supply is usually very high, but the output voltage is not high, so In comparison, the parallel power supply system has been more widely used.
  • the power modules in the prior art can use non-isolated DCDC converters. Such converters are connected in parallel to form a power supply system. However, when such converters are connected in parallel, there will be circulating currents between the converters, resulting in positive effects on the same converter. The negative currents are not equal, and the heat of each converter is uneven, which can easily cause damage to the converter.
  • one of the objectives of the present invention is to provide a DCDC circulating current control device, which makes the i1 of different converters equal and the i2 of different converters equal to the same converter through current sharing control and adjustment modules.
  • the sum of i1 and i2 is zero, so that the circulating current between the converters can be reduced, so as to reduce the probability of device damage in the converter.
  • a DCDC circulating current control device including a load R and at least two converters, each of the converters includes:
  • the power input terminal is connected to the DC source and receives the voltage that needs to be converted formed by the DC source;
  • the voltage transformation module is connected between the power input terminal and the voltage output terminal, and is used to transform the voltage received by the power input terminal and output it to the voltage output terminal;
  • the voltage output terminal is connected to the output terminal of the transformation module, the voltage output terminal includes a positive interface and a negative interface, and the positive input terminal of the power input terminal is connected to one end of the load R via the transformation module and the positive interface;
  • the negative input terminal of the power input terminal is connected to the other end of the load R via the transformer module and the negative terminal; the current flowing through the positive terminal is set to i1, and the current flowing through the negative terminal is set to i2;
  • the adjustment module is connected in series with the negative output terminal of the transformer module and used to adjust i2. Through the current sharing control and adjustment module, the i1 of different converters and i2 of different converters are equal.
  • the adjustment module includes a switch S0, the switch S0 has a control end, a forward end, and a reverse end, and the voltage at the forward end is higher than the voltage at the reverse end,
  • the control end of the switch S0 is respectively coupled to the PWM width adjustment device or the voltage control device, the positive end of the switch S0 is coupled to the negative output end of the transformer module, and the positive end of the switch S0 It is coupled to the negative output terminal of the transformer unit, and the reverse terminal of the switch tube S0 is coupled to the negative terminal.
  • the direct current source includes an alternating current power source and a rectification module, and the alternating current power source forms the power input terminal through the rectification module.
  • the transformation module includes at least one first transformation unit, and the first transformation unit is sequentially connected in series between the power input terminal and the voltage output terminal.
  • the first transformer unit includes an inductor L1, a switch tube S1, a diode D7, and a capacitor C1.
  • the switch tube S1 has a control end, a forward end, and a reverse end. The control end is connected to the PWM width adjustment device, The voltage at the forward end is higher than the voltage at the reverse end,
  • One end of the inductor L1 is the positive input terminal of the first transformation unit, the other end of the inductor L1 is coupled to the anode of the diode D7, and the cathode of the diode D7 is the positive input of the first transformation unit.
  • the first transformer unit includes an inductor L3, a switch tube S3, a diode D9, and a capacitor C3.
  • the switch tube S3 has a control terminal, a forward terminal, and a reverse terminal.
  • the control terminal is connected to the PWM width adjustment device, The voltage at the forward end is higher than the voltage at the reverse end,
  • the forward end of the switch tube S3 is the positive input end of the first transformation unit, the reverse end is coupled to one end of the inductor L3, and the other end of the inductor L3 is the positive output end of the first transformation unit
  • the cathode of the diode D9 is coupled to the reverse end of the switch S3, the negative input end and the negative output end of the first transformation unit are both coupled to the anode of the diode D9, and the two capacitors C3
  • the terminals are respectively coupled to the anode of the diode D9 and the positive output terminal of the first transformer unit.
  • the transformation module further includes at least one second transformation unit, and the first transformation unit and the second transformation unit are connected in series between the power input terminal and the voltage output terminal.
  • the second transformer unit includes an inductor L3, a switch S3, a diode D9, and a capacitor C3.
  • the switch S3 has a control end, a forward end, and a reverse end. The control end is connected to the PWM width adjustment device. The voltage is higher than the voltage at the reverse end,
  • the forward end of the switch tube S3 is the positive input end of the second transformation unit, the reverse end is coupled to one end of the inductor L3, and the other end of the inductor L3 is the positive output end of the second transformation unit
  • the cathode of the diode D9 is coupled to the reverse end of the switch S3, the negative input terminal and the negative output end of the second transformer unit are both coupled to the anode of the diode D9, and the capacitor C3
  • the terminals are respectively coupled to the anode of the diode D9 and the positive output terminal of the second transformer unit.
  • the second objective of the present invention is achieved by adopting the following technical solution: a DCDC circulating current control method, using the above-mentioned DCDC circulating current control device, which includes:
  • the third object of the present invention is to provide an electronic device that performs the second object of the present invention, which includes a processor, a storage medium, and a computer program.
  • the computer program is stored in the storage medium.
  • the fourth object of the present invention is to provide a computer-readable storage medium storing the second object of the present invention, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned DCDC circulation control method is realized.
  • the present invention has the beneficial effect that: in the DCDC circulating current control device, the i1 of different converters and i2 of different converters are equalized through the current sharing control and adjustment module, that is, the i1 and i2 of the same converter are equal. The sum is zero, so that the circulating current between the converters can be reduced, so as to reduce the probability of device damage in the converter.
  • Figure 1 is a system block diagram of a DCDC circulating current control device according to an embodiment of the present invention
  • Figure 2 is a circuit diagram of a DC source in a DCDC circulating current control device according to the second embodiment of the present invention
  • Fig. 3 is a circuit diagram of a converter in a DCDC circulating current control device of the second embodiment of the present invention.
  • FIG. 4 is a circuit diagram of the first transformer unit in the DCDC circulating current control device of the third embodiment of the present invention.
  • FIG. 5 is a circuit diagram of the first transformer unit in the DCDC circulating current control device of the fourth embodiment of the present invention.
  • FIG. 6 is a circuit diagram of a transformer module in a DCDC circulating current control device according to the fifth embodiment of the present invention.
  • FIG. 7 is a flowchart of a DCDC circulating current control method according to the sixth embodiment of the present invention.
  • Fig. 8 is a structural block diagram of an electronic device according to the seventh embodiment of the present invention.
  • converter In the figure: 1. converter; 2. transformer module; 21, first transformer unit; 22, second transformer unit; 3. regulation module; 4. DC source; 41, AC power supply; 42, rectifier module; 5. Electronic equipment; 51, processor; 52, memory; 53, input device; 54, output device.
  • the first embodiment provides a DCDC circulating current control device, which can make the i1 of each converter 1 equal and the i2 of each converter 1 equal through the current sharing control and adjustment module 3, realizing the positive and negative current of the same converter 1 The sum is zero to reduce the circulating current between converter 1.
  • a DCDC circulating current control device includes a load R and a converter 1.
  • the converter 1 includes a power input terminal, a voltage output terminal, a regulating module 3 and a transformer module 2.
  • the power input terminal has a positive input terminal and a negative input terminal, and the power input terminal is connected to the DC source 4 and receives the voltage to be converted.
  • the voltage to be converted is a DC voltage.
  • the transformation module 2 is connected to the power input terminal, and the transformation module 2 is used to receive the voltage to be transformed from the input terminal of the power supply and output it from the voltage output terminal after step-up/down conversion, thereby realizing each converter 1 The DC-DC conversion.
  • the voltage output terminal is used to output the transformed voltage.
  • the voltage output terminal includes a positive interface and a negative interface.
  • the voltage output terminal includes a positive interface and a negative interface.
  • the positive input terminal of the power input terminal is connected to the load R via the transformer module 2 and the positive interface.
  • One end of the power input end; the negative input end of the power input end is connected to the other end of the load R via the transformer module 2 and the negative interface to realize the parallel connection of the converter 1.
  • the current flowing through the positive port is set to i1, and the current flowing through the negative port is set to i2.
  • the adjustment module 3 is connected in series with the negative output terminal of the transformation module 2, so that the value of i2 can be adjusted.
  • the voltage output terminals can be respectively connected to the voltage regulating device.
  • the voltage output by the converter 1 can be adjusted by the respective transformer regulating devices, so as to realize the current sharing control of each converter 1 to achieve the The i1 of each inverter 1 is equal.
  • each converter 1 when each converter 1 is connected in parallel to the load R and correspondingly connected to the DC source 4, the i1 of each converter 1 and the i2 of each converter 1 can be equalized by each voltage regulating device and the regulating module 3.
  • the value of the sum of i1 in the converter 1 is equal to the value of the load R flowing through the current iout, and the value of the sum of i2 in each converter 1 is equal to the value of the load R flowing through the current iout, so that the sum of i1 and i2 of each converter 1 is zero ,
  • the sum of i1 and i2 of each converter 1 is zero , In order to reduce the circulating current between each converter 1 and improve the service life of the converter 1.
  • the second embodiment is carried out on the basis of the first embodiment, referring to FIG. 1 and FIG. 2, wherein the DC source 4 can be set as a DC power source or a combination of an AC power source 41 and a rectifier module 42.
  • the rectifier module 42 can be arranged in a one-to-one correspondence with the number of the converter 1, wherein the rectifier module 42 is connected between the AC power source 41 and the transformation module 2, and the rectifier module 42 is used to rectify and output the AC power output by the AC power source 41 Direct current.
  • the AC power supply 41 can be set to multi-phase AC power or unidirectional AC power.
  • the AC power supply 41 shown in FIG. 2 is set to three-phase AC power.
  • the rectifier module 42 can include three rectifier units, each of which is associated with each phase. AC power corresponds to one to one.
  • the rectifier units each include a diode D1 and a diode D2.
  • the cathodes of the diode D1 are both coupled to form the positive output terminal of the rectifier module 42, and are coupled to the positive input terminal of the transformer module D2.
  • Each phase of AC power is respectively coupled to the diode The anode of D1; the cathode of diode D1 is coupled to the anode of diode D1 in the same rectifier unit, and the anodes of diode D2 are both coupled to form the negative output terminal of the rectifier module 42, and are coupled to the negative input terminal of the transformer module 2. .
  • the adjustment module 3 is set as a switch S0, the switch S0 has a control end, a forward end, and a reverse end.
  • the voltage at the forward end is higher than the voltage at the reverse end, and the control end of the switch S0
  • the switch S0 can be any one of MOS, IGBT, GaN, and triode, preferably a depletion N-MOS transistor with parasitic diode.
  • the duty ratio of the switching tube S0 is adjusted by the PWM width adjustment device or the driving voltage of the switching tube S0 is adjusted by the voltage control device, thereby changing the loop impedance of i2 and realizing the change of the size of i2.
  • the third embodiment is carried out on the basis of the first or second embodiment.
  • the transformer module 2 includes a first transformer unit 21, and a first transformer unit 21 may be provided with x, and x is greater than or equal to 1, and the first transformer unit 21 is connected in series between the power input terminal and the voltage output terminal, thereby realizing one or more stages of DC-DC conversion.
  • the first transformer unit 21 includes an inductor L1, a switch tube S1, a diode D7, and a capacitor C1.
  • the switch S1 can be any one of MOSFET, IGBT, GaN, and triode, preferably a depletion N-MOSFET.
  • the switch S1 has a control end, a forward end, and a reverse end.
  • the control end is connected to the PWM width adjustment device.
  • the voltage at the forward end is higher than the voltage at the reverse end, that is, the control end, forward end, and reverse end of the switch S1 It can correspond to the gate, drain, and source of a depletion N-MOSFET.
  • One end of the inductor L1 is the positive input terminal of the first transformation unit 21, the other end of the inductor L1 is coupled to the anode of the diode D7; the forward end of the switch S1 is coupled to the anode of the diode D7, the first transformation unit
  • the negative input terminal and the negative output terminal of 21 are both coupled to the reverse end of the switch S1; both ends of the capacitor C1 are respectively coupled to the cathode of the diode D7 and the reverse end of the switch S1; the cathode of the diode D7 is the first The positive output terminal of the transformer unit 21.
  • the first transformation units 21 when there are multiple first transformation units 21, the first transformation units 21 are connected in series.
  • the cathode of the diode D1 in the rectifier module 42 is the same as the first stage first transformation unit. 21 is coupled to the positive input terminal; the cathode of the diode D7 in the x-th stage first transformation unit 21 is coupled to the positive terminal, and the reverse end of the switch S1 in the x-th stage first transformation unit 21 is connected to the switch S0
  • the positive terminal is coupled to realize multi-level DC-DC conversion.
  • the fourth embodiment is carried out on the basis of the first or second embodiment.
  • the transformation module 2 includes a first transformation unit 21, and a first transformation unit 21 may be provided with x, and x is greater than or equal to 1, and the first transformer unit 21 is connected in series between the power input terminal and the voltage output terminal in order to realize one or more stages of DC-DC conversion.
  • the first transformation unit 21 may include an inductor L3, a diode D9, a switch S3, and a capacitor C3.
  • the switch S3 can be any one of MOSFET, IGBT, GaN, and triode, preferably a depletion N-MOSFET.
  • the switch S3 has a control end, a forward end, and a reverse end. The control end is connected to the PWM width adjustment device. The voltage at the forward end is higher than the voltage at the reverse end, that is, the control end, forward end, and reverse end of the switch S3 It can correspond to the gate, drain, and source of a depletion N-MOSFET.
  • the forward end of the switch S3 is the positive input end of the first transformation unit 21, the reverse end is coupled to one end of the inductor L3, and the other end of the inductor L3 is the positive output end of the first transformation unit 21;
  • the cathode is coupled to the reverse end of the switch tube S3, the negative input end and the negative output end of the first transformer unit 21 are coupled to the anode of the diode D9, and both ends of the capacitor C3 are respectively coupled to the anode and the first end of the diode D9.
  • the positive output terminal of the transformer unit 21 is the positive input end of the first transformation unit 21, the reverse end is coupled to one end of the inductor L3, and the other end of the inductor L3 is the positive output end of the first transformation unit 21;
  • the cathode is coupled to the reverse end of the switch tube S3, the negative input end and the negative output end of the first transformer unit 21 are coupled to the anode of the diode D9, and both ends of the capacitor C3 are respectively coupled to
  • the first transformation units 21 are connected in series.
  • the cathode of the diode D1 in the rectifier module 42 is the same as the first stage first transformation unit. 21 is coupled to the positive input end, referring to FIG. 3, the end of the inductor L3 in the x-th stage first transformation unit 21 far from the reverse end of the switch S3 is coupled to the positive interface, and the diode in the x-th stage first transformation unit 21
  • the anode of D9 is coupled to the positive end of the switch S0, so as to realize multi-level DC-DC conversion.
  • the transformer module 2 also includes a second transformer unit 22, and the second transformer unit 22 may be provided with The first transformer unit 21 and the second transformer unit 22 are connected in series between the power input terminal and the voltage output terminal. The number and arrangement of the first transformer unit 21 and the second transformer unit 22 are based on actual conditions. Situation settings.
  • FIG. 6 shows a case where a first transformation unit 21 is connected in series with a second transformation unit 22.
  • the second transformation unit 22 may include an inductor L3, a diode D9, a switch S3, Capacitor C3.
  • the switch S3 can be any one of MOSFET, IGBT, GaN, and triode, preferably a depletion N-MOSFET.
  • the switch tube S3 has a control terminal, a forward terminal, and a reverse terminal.
  • the control terminal is connected to the PWM width adjustment device.
  • the voltage at the forward terminal is higher than the voltage at the reverse terminal, that is, the control terminal, forward terminal, and reverse terminal of the switch tube S3 It can correspond to the gate, drain, and source of a depletion N-MOSFET.
  • the end of the inductor 1 away from the diode 7 can be coupled to the positive output end of the rectifier module 42, the reverse end of the switch tube S1 is coupled to the negative output end of the rectifier module 42; the positive end of the switch tube S3
  • the forward end is the positive input end of the second transformation unit 22 and is coupled to the cathode of the diode 7, the reverse end of the switch S3 is coupled to one end of the inductor L3, and the other end of the inductor L3 is the positive end of the second transformation unit 22.
  • the output terminal is coupled to the positive terminal; the cathode of the diode D9 is coupled to the reverse terminal of the switching tube S3, and the anode of the diode 9 is the negative input terminal and the negative output terminal of the second transformer unit 22 and is opposite to the switching tube S1.
  • the capacitor C3 is coupled to the anode of the diode D9 and the positive output terminal of the second transformer unit 22, respectively. Therefore, the rectifier module 42 transmits the DC voltage from the power input terminal to the transformation module 2, after the first stage of DC-DC conversion of the first transformation unit 21, and then the second stage of DC-DC transformation of the second transformation unit 22, Thus, the transformed voltage is output from the output terminal.
  • the sixth embodiment is to provide a DCDC circulating current control method, which can use the above-mentioned circulating current control device to quickly adjust the current value of each i1 and i2.
  • the DCDC circulating current control method includes the following steps:
  • Step S1 Obtain the total number of converters 1 and set it to N, where N is greater than or equal to 2.
  • Step S2 Obtain the current passing through the load R, set the current as iout, and after each converter 1 is connected in parallel, the sum of the values of i1 of N converters 1 after being added is equal to the value of iout, and N converters 1 The sum of the values of i2 after addition is also equal to the value of iout.
  • Step S3 Obtain the current i1 of the positive interface and the current i2 of the negative interface in each converter 1. Both i1 and i2 can be obtained through detection equipment such as transformers, ammeters, oscilloscopes, and various sampling circuits built.
  • Step S4 Determine whether the value of current i1 and the value of current i2 of each converter 1 are equal to the value of iout divided by N ( ⁇ iout/N ⁇ ).
  • the voltage regulator and the switch S0 are controlled synchronously so that the values of i1 and i2 in each converter 1 are equal to the value of iout divided by N ( ⁇ iout/N ⁇ ).
  • the PWM width adjustment device or voltage control device of the switch S0 can be used to reduce the value of i2; that is, when ⁇ i2 ⁇ iout/N ⁇ , The PWM width adjustment device or voltage control device of the switch tube S0 can be used to increase the value of corresponding i2; when ⁇ i1 ⁇ > ⁇ iout/N ⁇ , the output voltage of the converter 1 can be changed by the voltage adjustment device, As a result, ⁇ i1 ⁇ is reduced; when ⁇ i1 ⁇ iout/N ⁇ , the output voltage of the transformer 1 can be changed by the voltage regulator, thereby increasing ⁇ i1 ⁇ .
  • Step S5 End the operation.
  • FIG. 8 is a schematic structural diagram of an electronic device provided by Embodiment 7 of the present invention.
  • the electronic device 5 includes a processor 51, a memory 52, an input device 53, and an output device 54; the processor 51 in the computer device The number can be one or more.
  • one processor 51 is taken as an example; the processor 51, the memory 52, the input device 53, and the output device 54 in the electronic device 5 may be connected by a bus or other means, as shown in FIG. Take the bus connection as an example.
  • the memory 52 can be used to store software programs, computer-executable programs, and modules, such as the DCDC circulation control method in the embodiment of the present invention.
  • the processor 51 executes various functional applications and data processing of the electronic device 5 by running the software programs, instructions, and modules stored in the memory 52, that is, realizes the DCDC circulating current control method of the sixth embodiment.
  • the memory 52 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal.
  • the memory 52 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the memory 52 may further include a memory remotely provided with respect to the processor 51, and these remote memories may be connected to the electronic device 5 through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the input device 53 is connected with the corresponding detection equipment and is used to receive corresponding data; the output device 54 outputs corresponding instructions, and the switch tube S0 executes corresponding instructions corresponding to the PWM width adjustment device, the voltage control device, and the voltage adjustment device.
  • the eighth embodiment of the present invention also provides a computer-readable storage medium, which contains computer-executable instructions, and the computer-executable instructions are used to execute the above-mentioned DCDC circulation control method when executed by a computer processor, and the method includes:
  • the present invention can be realized by software and necessary general-purpose hardware, of course, it can also be realized by hardware, but in many cases the former is a better embodiment.
  • the technical solution of the present invention essentially or the part that contributes to the prior art can be embodied in the form of a software product.
  • the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • FLASH Flash memory
  • hard disk or optical disk etc., including several instructions to make an electronic device (can be a mobile phone, personal computer, A server, or a network device, etc.) execute the method of each embodiment of the present invention.

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  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention se rapporte au domaine technique des convertisseurs. L'invention concerne un dispositif de commande de courant en anneau CC-CC, comprenant une charge R et au moins deux convertisseurs. Les convertisseurs comprennent chacun : une borne d'entrée d'alimentation électrique connectée à une source de courant continu et recevant une tension électrique à convertir qui est formée par la source de courant continu ; un module de transformation de tension électrique connecté entre la borne d'entrée d'alimentation électrique et une borne de sortie de tension électrique ; la borne de sortie de tension électrique comprenant un connecteur positif et un connecteur négatif, une borne d'entrée positive de la borne d'entrée d'alimentation électrique étant connectée à une extrémité de la charge R par l'intermédiaire du module de transformation de tension électrique et du connecteur positif, une borne d'entrée négative de la borne d'entrée d'alimentation électrique étant connectée à l'autre extrémité de la charge R par l'intermédiaire du module de transformation de tension électrique et du connecteur négatif, un courant circulant à travers le connecteur positif étant configuré en tant que i1, et un courant circulant à travers le connecteur négatif étant configuré en tant que i2 ; et un module de régulation connecté à une borne de sortie négative du module de transformation de tension électrique en série. Différents convertisseurs sont activés pour avoir un i1 identique et un i2 identique au moyen d'une commande de partage de courant et du module de régulation. L'invention concerne en outre une un procédé de commande de courant en anneau CC-CC, un appareil électronique et un support d'informations lisible par ordinateur.
PCT/CN2019/128541 2019-07-29 2019-12-26 Dispositif de commande de courant en anneau cc-cc, procédé de commande, appareil électronique et support WO2021017388A1 (fr)

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CN110311564B (zh) * 2019-07-29 2020-07-24 杭州中恒电气股份有限公司 Dcdc环流控制装置、控制方法、电子设备以及介质

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