A bidirectional multi-channel AC-DC conversion circuit for electric energy

Abstract

The present invention discloses a two-way multi-channel AC-DC conversion circuit for electric energy, which relates to the technical field of electric energy conversion and includes a power multi-channel distribution module for inverter filtering, multi-channel power distribution, and complementary superposition processing of electric energy; an intelligent control module for signal reception and module control; a first adjustment module for constant voltage adjustment, constant current adjustment, and residual electric energy superposition control and power supply to a first output module; a second adjustment module for constant voltage adjustment, constant current adjustment, and residual electric energy superposition control and power supply to a second output module; an energy storage control module for storing residual electric energy and power supply; and a compensation control module for boosting voltage and supplying electric energy to the first adjustment module or the second adjustment module. The two-way multi-channel AC-DC conversion circuit for electric energy of the present invention can perform multi-channel power distribution processing, perform constant current or constant voltage adjustment processing as required, store the superposed residual electric energy and supply power to the first adjustment module or the second adjustment module, improve the utilization rate of electric energy, and provide a wider voltage range.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy conversion, and particularly to a bidirectional multi-channel AC-DC conversion circuit for electric energy. Background Art

[0002] With the rapid development of modern electronic technology, the design and application of AC-DC conversion power supply circuits are becoming increasingly complex and diverse. Especially in occasions where multi-channel independent outputs are required, such as industrial automation equipment, communication base stations, medical electronic equipment, and consumer electronic products, the performance requirements for power supply systems are becoming more and more stringent. The existing bidirectional multi-channel AC-DC conversion circuits for electric energy generally perform multi-channel voltage transformation through multiple sets of transformers and perform voltage stabilization processing on each output branch. However, when each output branch stops power supply operation, due to the relatively low electric energy stored in components such as capacitors and inductors, it cannot be reasonably utilized, resulting in a certain amount of energy waste. Moreover, the output voltage range of each output branch is limited and it is impossible to perform constant current and constant voltage switching power supply control according to requirements. Therefore, it needs to be improved. Summary of the Invention

[0003] An embodiment of the present invention provides a bidirectional multi-channel AC-DC conversion circuit for electric energy to solve the problems mentioned in the above background art.

[0004] According to an embodiment of the present invention, a bidirectional multi-channel AC-DC conversion circuit for electric energy is provided, including: a power multi-channel distribution module, an intelligent control module, a first adjustment module, a second adjustment module, a first output module, a second output module, an energy storage control module, and a compensation control module;

[0005] The power multi-channel distribution module is connected to the first adjustment module and the second adjustment module, and is used for accessing DC electric energy, performing inversion adjustment and filtering processing on the DC electric energy, outputting AC electric energy, performing multi-channel isolation voltage transformation processing on the AC electric energy and outputting first electric energy and second electric energy, superimposing the first electric energy with the eighth electric energy output by the second adjustment module and outputting ninth electric energy, and superimposing the second electric energy with the seventh electric energy output by the first adjustment module and outputting tenth electric energy;

[0006] The intelligent control module, connected to the first adjustment module and the second adjustment module, is used to set the timing time, provide the first inversion signal and the second inversion signal, output a boost signal, a first compensation signal or a second compensation signal when the output voltage needs to be increased, output a first control signal or a second control signal when the first adjustment module or the second adjustment module needs to perform constant current regulation, output a third control signal at a fixed time when the first adjustment module stops power regulation work and, after the timing ends, stop outputting the third control signal and output a fourth control signal at a fixed time, output a fifth control signal after the timing ends, output a sixth control signal at a fixed time when the second adjustment module stops power regulation work and, after the timing ends, stop outputting the sixth control signal and output a seventh control signal at a fixed time, and output an eighth control signal after the timing ends;

[0007] The first adjustment module, connected to the compensation control module, is used to perform constant voltage regulation processing on the first electric energy or the ninth electric energy, perform constant current regulation processing on the first electric energy or the ninth electric energy when receiving the first control signal, output the third electric energy, rectify the third electric energy and output the fourth electric energy, perform inversion processing on the compensation electric energy output by the compensation control module and output the seventh electric energy when receiving the first inversion signal, and store the residual electric energy and provide the eleventh electric energy when receiving the third control signal or the fifth control signal;

[0008] The second adjustment module, connected to the compensation control module, is used to perform constant voltage regulation processing on the second electric energy or the tenth electric energy, perform constant current regulation processing on the second electric energy or the tenth electric energy when receiving the second control signal, output the fifth electric energy, rectify the fifth electric energy and output the sixth electric energy, perform inversion processing on the compensation electric energy output by the compensation control module and output the eighth electric energy when receiving the second inversion signal, and store the residual electric energy and provide the twelfth electric energy when receiving the sixth control signal or the seventh control signal;

[0009] The first output module, connected to the first adjustment module, is used to receive the fourth electric energy;

[0010] The second output module, connected to the second adjustment module, is used to receive the sixth electric energy;

[0011] The energy storage control module, connected to the intelligent control module, the first adjustment module and the second adjustment module, is used to store the eleventh electric energy when receiving the fifth control signal and store the twelfth electric energy when receiving the eighth control signal;

[0012] The compensation control module, connected to the energy storage control module and the intelligent control module, is used to boost the electric energy released by the energy storage control module and output compensated electric energy when receiving a boost signal, transmit the compensated electric energy to the first adjustment module when receiving a first compensation signal, and transmit the compensated electric energy to the second adjustment module when receiving a second compensation signal.

[0013] As a further solution of the present invention: The power multi-way distribution module includes a power interface, a first inverter, a first inductor, a first capacitor, a first transformer, and a second transformer;

[0014] Preferably, the first end and the second end of the power interface are respectively connected to the first end and the second end of the first inverter. The third end of the first inverter is connected to the first inductor, which is connected to one end of the first capacitor and the first end of the primary side of the first transformer. The second end of the primary side of the first transformer is connected to the first end of the primary side of the second transformer. The fourth end of the first inverter is connected to the other end of the first capacitor and the second end of the primary side of the second transformer. The first end and the second end of the secondary side of the first transformer are connected to the first adjustment module, and the first end and the second end of the secondary side of the second transformer are connected to the second adjustment module.

[0015] As a further solution of the present invention: The first adjustment module includes a first thyristor, a third capacitor, a second capacitor, a second inductor, a second thyristor, a first diode, a second diode, and a first converter; the intelligent control module includes a first controller;

[0016] Preferably, one end of the first thyristor is connected to the first end of the secondary side of the first transformer and one end of the second capacitor, and is connected to one end of the second thyristor through the second inductor. The other end of the second thyristor is connected to the first end of the first converter, the other end of the second capacitor, and the energy storage control module. The other end of the first thyristor is connected to the second end of the secondary side of the first transformer and the second end of the first converter through the third capacitor. The control end of the first thyristor is connected to the IO2 end of the first controller and the cathode of the second diode. The anode of the second diode is connected to the anode of the first diode and the IO1 end of the first controller. The cathode of the first diode is connected to the IO3 end of the first controller and the control end of the second thyristor. The third end and the fourth end of the first converter are connected to the first output module, and the fifth end of the first converter is connected to the IO4 end of the first controller.

[0017] As a further solution of the present invention: The second adjustment module includes a power adjustment device and a second converter;

[0018] Preferably, the first end and the second end of the power adjustment device are respectively connected to the first end and the second end of the secondary side of the second transformer. The third end and the fourth end of the power adjustment device are respectively connected to the first end and the second end of the second converter. The third end and the fourth end of the second converter are connected to the second output module. The fifth end of the second converter is connected to the IO7 end of the first controller. The fifth end, the sixth end and the seventh end of the power adjustment device are respectively connected to the IO4 end, the IO5 end and the IO6 end of the first controller.

[0019] As a further aspect of the present invention: The first output module includes a fourth capacitor and a first output port; the second output module includes a fifth capacitor and a second output port;

[0020] Preferably, the first end of the first output port is connected to the third end of the first converter and one end of the fourth capacitor. The other end of the fourth capacitor is connected to the second end of the first output port, the fourth end of the first converter, the fourth end of the second converter, one end of the fifth capacitor, the second end of the second output port and the ground terminal. The first end of the second output port is connected to the other end of the fifth capacitor and the third end of the second converter.

[0021] As a further aspect of the present invention: The energy storage control module includes a third thyristor, a fourth thyristor, a sixth capacitor and an energy storage device;

[0022] Preferably, the anode of the third thyristor is connected to the first end of the first converter. The cathode of the third thyristor is connected to the first end of the energy storage device and the cathode of the fourth thyristor and is connected to the second end of the energy storage device and the ground terminal through the sixth capacitor. The anode of the fourth thyristor is connected to the first end of the second converter. The control ends of the third thyristor and the fourth thyristor are respectively connected to the IO8 end and the IO9 end of the first controller.

[0023] As a further aspect of the present invention: The compensation control module includes a boosting device, a seventh capacitor, a first power tube and a second power tube;

[0024] Preferably, the input end of the boosting device is connected to the first end of the energy storage device. The output end of the boosting device is connected to the drain of the first power tube and the drain of the second power tube and is connected to the grounding end of the boosting device, the second end of the energy storage device and the ground terminal through the seventh capacitor. The source of the first power tube and the source of the second power tube are respectively connected to the third end of the first converter and the third end of the second converter. The gates of the first power tube and the second power tube are respectively connected to the IO11 end and the IO112 end of the first controller. The control end of the boosting device is connected to the IO10 end of the first controller.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: The two-way multi-channel AC-DC conversion circuit of electric energy of the present invention can perform multi-channel power distribution processing by a power multi-channel distribution module, and the first adjustment module and the second adjustment module perform constant current or constant voltage adjustment processing according to requirements, and supply power to the first output module and the second output module respectively. At the same time, when the power multi-channel distribution module stops power supply, the discharge modes of the first adjustment module and the second adjustment module can be adjusted, so as to superimpose the residual electric energy and store the superimposed residual electric energy by the energy storage control module, realizing the energy-saving control of the circuit. When the required output electric energy voltage exceeds the electric energy voltage provided by the first output module or the second output module, the compensation control module can cooperate with the energy storage control module and the power multi-channel distribution module to provide electric energy for the first adjustment module or the second adjustment module, so as to expand the range of the output electric energy voltage and provide a wider voltage range. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic block diagram of the principle of a two-way multi-channel AC-DC conversion circuit of electric energy provided by an embodiment of the present invention.

[0028] Figure 2 It is a circuit diagram of a two-way multi-channel AC-DC conversion circuit of electric energy provided by an embodiment of the present invention.

[0029] Figure 3 It is a circuit diagram of the compensation control module provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0031] In one embodiment, please refer to Figure 1 , a two-way multi-channel AC-DC conversion circuit of electric energy, comprising: a power multi-channel distribution module 1, an intelligent control module 2, a first adjustment module 3, a second adjustment module 4, a first output module 5, a second output module 6, an energy storage control module 7 and a compensation control module 8;

[0032] Specifically, the power multi - distribution module 1 is connected to the first adjustment module 3 and the second adjustment module 4. It is used to access DC electrical energy, perform inversion adjustment and filtering processing on the DC electrical energy, output AC electrical energy, perform multi - path isolation voltage transformation processing on the AC electrical energy and output the first electrical energy and the second electrical energy, perform superposition processing on the first electrical energy and the eighth electrical energy output by the second adjustment module 4 and output the ninth electrical energy, and perform superposition processing on the second electrical energy and the seventh electrical energy output by the first adjustment module 3 and output the tenth electrical energy;

[0033] The intelligent control module 2 is connected to the first adjustment module 3 and the second adjustment module 4. It is used to set the timing time, provide the first inversion signal and the second inversion signal. When it is necessary to increase the output voltage, it outputs a boost signal, a first compensation signal or a second compensation signal. When the first adjustment module 3 or the second adjustment module 4 needs to perform constant - current adjustment, it outputs a first control signal or a second control signal. When the first adjustment module 3 stops power adjustment work, it outputs the third control signal at a fixed time and after the timing ends, stops outputting the third control signal and outputs the fourth control signal at a fixed time. After the timing ends, it outputs the fifth control signal. When the second adjustment module 4 stops power adjustment work, it outputs the sixth control signal at a fixed time and after the timing ends, stops outputting the sixth control signal and outputs the seventh control signal at a fixed time. After the timing ends, it outputs the eighth control signal;

[0034] The first adjustment module 3 is connected to the compensation control module 8. It is used to perform constant - voltage adjustment processing on the first electrical energy or the ninth electrical energy. When receiving the first control signal, it performs constant - current adjustment processing on the first electrical energy or the ninth electrical energy, outputs the third electrical energy, performs rectification processing on the third electrical energy and outputs the fourth electrical energy. When receiving the first inversion signal, it performs inversion processing on the compensation electrical energy output by the compensation control module 8 and outputs the seventh electrical energy. When receiving the third control signal or the fifth control signal, it stores the residual electrical energy and provides the eleventh electrical energy;

[0035] The second adjustment module 4 is connected to the compensation control module 8. It is used to perform constant - voltage adjustment processing on the second electrical energy or the tenth electrical energy. When receiving the second control signal, it performs constant - current adjustment processing on the second electrical energy or the tenth electrical energy, outputs the fifth electrical energy, performs rectification processing on the fifth electrical energy and outputs the sixth electrical energy. When receiving the second inversion signal, it performs inversion processing on the compensation electrical energy output by the compensation control module 8 and outputs the eighth electrical energy. When receiving the sixth control signal or the seventh control signal, it stores the residual electrical energy and provides the twelfth electrical energy;

[0036] The first output module 5 is connected to the first adjustment module 3 and is used to receive the fourth electrical energy;

[0037] The second output module 6 is connected to the second adjustment module 4 and is used to receive the sixth electrical energy;

[0038] The energy storage control module 7 is connected to the intelligent control module 2, the first adjustment module 3 and the second adjustment module 4, and is configured to store the eleventh electric energy when receiving the fifth control signal, and store the twelfth electric energy when receiving the eighth control signal;

[0039] The compensation control module 8 is connected to the energy storage control module 7 and the intelligent control module 2, and is configured to boost the electric energy released by the energy storage control module 7 and output compensated electric energy when receiving a boost signal, transmit the compensated electric energy to the first adjustment module 3 when receiving the first compensation signal, and transmit the compensated electric energy to the second adjustment module 4 when receiving the second compensation signal.

[0040] In a specific embodiment, the above-mentioned power multi-channel distribution module 1 can adopt a power multi-channel distribution circuit composed of a power interface, an inverter, a transformer, etc., which can access DC electric energy and perform inversion, filtering and multi-channel isolation distribution processing on the DC electric energy; the above-mentioned intelligent control module 2 can adopt an intelligent control circuit composed of a single-chip microcomputer and a clock chip, integrating many components such as a timer, an arithmetic unit, a controller, a memory, and an input / output unit, to realize functions such as signal processing, data storage, module control, and timing control; the above-mentioned first adjustment module 3 can adopt a first adjustment circuit composed of thyristors, capacitors, converters, etc., which can be controlled by the intelligent control module 2 to perform constant current or constant voltage adjustment processing on the input electric energy, and perform superposition processing on the residual electric energy after power supply is stopped; the above-mentioned second adjustment module 4 can adopt a second adjustment circuit composed of a power adjustment device and a converter, which can be controlled by the intelligent control module 2 to perform constant current or constant voltage adjustment processing on the input electric energy, and perform superposition processing on the residual electric energy after power supply is stopped; the above-mentioned first output module 5 can be a first output circuit composed of a capacitor and an output port, which receives electric energy and is connected to an electrical device; the above-mentioned second output module 6 can be a second output circuit composed of a capacitor and an output port, which receives electric energy and is connected to an electrical device; the above-mentioned energy storage control module 7 can adopt an energy storage control circuit composed of thyristors, capacitors and an energy storage device to perform energy storage control and supply power to the compensation control module 8; the above-mentioned compensation control module 8 can adopt a compensation control circuit composed of a boosting device, a field effect transistor, and a capacitor, which can perform boosting control on the input electric energy and provide compensated electric energy for the first adjustment module 3 or the second adjustment module 4.

[0041] In another embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the power multi-channel distribution module 1 includes a power interface, a first inverter T1, a first inductor L1, a first capacitor C1, a first transformer B1 and a second transformer B2;

[0042] Specifically, the first end and the second end of the power interface are respectively connected to the first end and the second end of the first inverter T1. The third end of the first inverter T1 is connected to the first inductor L1, which is connected to one end of the first capacitor C1 and the first end of the primary side of the first transformer B1. The second end of the primary side of the first transformer B1 is connected to the first end of the primary side of the second transformer B2. The fourth end of the first inverter T1 is connected to the other end of the first capacitor C1 and the second end of the primary side of the second transformer B2. The first end and the second end of the secondary side of the first transformer B1 are connected to the first adjustment module 3, and the first end and the second end of the secondary side of the second transformer B2 are connected to the second adjustment module 4.

[0043] In a specific embodiment, the above-mentioned first inverter T1 can be composed of four groups of IGBTs.

[0044] Furthermore, the first adjustment module 3 includes a first thyristor S1, a third capacitor C3, a second capacitor C2, a second inductor L2, a second thyristor S2, a first diode D1, a second diode D2, and a first converter T2; the intelligent control module 2 includes a first controller U1.

[0045] Specifically, one end of the first thyristor S1 is connected to the first end of the secondary side of the first transformer B1 and one end of the second capacitor C2, and is connected to one end of the second thyristor S2 through the second inductor L2. The other end of the second thyristor S2 is connected to the first end of the first converter T2, the other end of the second capacitor C2, and the energy storage control module 7. The other end of the first thyristor S1 is connected to the second end of the secondary side of the first transformer B1 and the second end of the first converter T2 through the third capacitor C3. The control end of the first thyristor S1 is connected to the IO2 end of the first controller U1 and the cathode of the second diode D2. The anode of the second diode D2 is connected to the anode of the first diode D1 and the IO1 end of the first controller U1. The cathode of the first diode D1 is connected to the IO3 end of the first controller U1 and the control end of the second thyristor S2. The third end and the fourth end of the first converter T2 are connected to the first output module 5, and the fifth end of the first converter T2 is connected to the IO4 end of the first controller U1.

[0046] In a specific embodiment, the above-mentioned first thyristor S1 and second thyristor S2 can both be selected as bidirectional thyristors. When the first thyristor S1 and the second thyristor S2 are conducting, they cooperate with the second inductor L2, the second capacitor C2, and the third capacitor C3 for LCL compensation and constant current regulation. When the first thyristor S1 and the second thyristor S2 are cut off, the second capacitor C2 performs series compensation and constant voltage regulation. The above-mentioned first converter T2 can be composed of four groups of IGBTs and four groups of diodes to realize bidirectional processing of electric energy, that is, inversion and rectification work. The above-mentioned first controller U1 can be composed of a single-chip microcomputer and a clock chip. The clock chip provides a clock signal for the single-chip microcomputer, and the single-chip microcomputer can be selected as an STM32 single-chip microcomputer.

[0047] Further, the second adjustment module 4 includes a power adjustment device and a second converter T3;

[0048] Specifically, the first end and the second end of the power adjustment device are respectively connected to the first end and the second end of the secondary side of the second transformer B2. The third end and the fourth end of the power adjustment device are respectively connected to the first end and the second end of the second converter T3. The third end and the fourth end of the second converter T3 are connected to the second output module 6. The fifth end of the second converter T3 is connected to the IO7 terminal of the first controller U1. The fifth end, the sixth end and the seventh end of the power adjustment device are respectively connected to the IO4 terminal, the IO5 terminal and the IO6 terminal of the first controller U1.

[0049] In a specific embodiment, the circuit composition structure of the above-mentioned power adjustment device is the same as that of the above-mentioned first thyristor S1, third capacitor C3, second capacitor C2, second inductor L2, second thyristor S2, first diode D1 and second diode D2, and can realize constant current or constant voltage adjustment and the superposition control of residual electric energy; the above-mentioned second converter T3 can be composed of four groups of IGBTs and four groups of diodes to realize the inversion and rectification of electric energy.

[0050] Further, the first output module 5 includes a fourth capacitor C4 and a first output port; the second output module 6 includes a fifth capacitor C5 and a second output port;

[0051] Specifically, the first end of the first output port is connected to the third end of the first converter T2 and one end of the fourth capacitor C4. The other end of the fourth capacitor C4 is connected to the second end of the first output port, the fourth end of the first converter T2, the fourth end of the second converter T3, one end of the fifth capacitor C5, the second end of the second output port and the ground terminal. The first end of the second output port is connected to the other end of the fifth capacitor C5 and the third end of the second converter T3.

[0052] In a specific embodiment, the above-mentioned first output port and second output port are both connected to an electrical device for power supply.

[0053] Further, the energy storage control module 7 includes a third thyristor S3, a fourth thyristor S4, a sixth capacitor C6 and an energy storage device;

[0054] Specifically, the anode of the third thyristor S3 is connected to the first end of the first converter T2. The cathode of the third thyristor S3 is connected to the first end of the energy storage device and the cathode of the fourth thyristor S4 and is connected to the second end of the energy storage device and the ground terminal through the sixth capacitor C6. The anode of the fourth thyristor S4 is connected to the first end of the second converter T3. The control ends of the third thyristor S3 and the fourth thyristor S4 are respectively connected to the IO8 terminal and the IO9 terminal of the first controller U1.

[0055] In a specific embodiment, the above-mentioned third thyristor S3 and fourth thyristor S4 can both be selected as unidirectional thyristors; the above-mentioned energy storage device can be selected as a storage battery.

[0056] Furthermore, the compensation control module 8 includes a boost device, a seventh capacitor C7, a first power transistor Q1, and a second power transistor Q2;

[0057] Specifically, the input end of the boost device is connected to the first end of the energy storage device, the output end of the boost device is connected to the drain of the first power transistor Q1 and the drain of the second power transistor Q2 and is connected to the ground end of the boost device, the second end of the energy storage device, and the ground through the seventh capacitor C7. The source of the first power transistor Q1 and the source of the second power transistor Q2 are respectively connected to the third end of the first converter T2 and the third end of the second converter T3. The gate of the first power transistor Q1 and the gate of the second power transistor Q2 are respectively connected to the IO11 end and the IO112 end of the first controller U1, and the control end of the boost device is connected to the IO10 end of the first controller U1.

[0058] In a specific embodiment, the above-mentioned boost device can be composed of a Boost circuit; the above-mentioned first power transistor Q1 and second power transistor Q2 can both be selected as N-channel field effect transistors.

[0059] In a two-way multi-channel AC-DC conversion circuit of this embodiment, DC electrical energy is accessed through a power interface, the first inverter T1 performs an inversion process, the first inductor L1 and the first capacitor C1 perform filtering, the first transformer B1 performs isolation voltage transformation and outputs the first electrical energy, the second transformer B2 performs isolation voltage transformation and outputs the second electrical energy. When constant current regulation is required, the IO1 terminal of the first controller U1 outputs a first control signal to control the first thyristor S1 and the second thyristor S2 to conduct, cooperate with the second inductor L2, the second capacitor C2 and the third capacitor C3 for LCL compensation and perform constant current regulation. The IO4 terminal outputs a second control signal to control the power regulation device for constant current regulation. After being rectified by the first converter T2, the fourth electrical energy is output. After being rectified by the second converter T3, the sixth electrical energy is output and received by the first output port and the second output port respectively. When constant voltage regulation is required, the IO1 terminal and the IO4 terminal of the first controller U1 stop outputting the first control signal and the second control signal respectively. When the power multi-channel distribution module 1 stops supplying power, both the first adjustment module 3 and the second adjustment module 4 stop working. The IO3 terminal of the first controller U1 outputs a third control signal at regular intervals to control the second thyristor S2 to conduct, so that the residual electrical energy on the second inductor L2 is stored by the second capacitor C2. After the timing ends, the third control signal output is stopped and the IO2 terminal of the first controller U1 outputs a fourth control signal at regular intervals to control the first thyristor S1 to conduct, and the third capacitor C3 stores the residual electrical energy on the first transformer B1. After the timing ends, the IO8 terminal of the first controller U1 outputs a fifth control signal to control the third thyristor S3 to conduct. At this time, the third capacitor C3 and the second capacitor C2 are in series to perform series superposition processing on the stored residual electrical energy to supply power to the energy storage device. Similarly, the IO5 of the first controller U1 outputs a sixth control signal at regular intervals and stops outputting the sixth control signal after the timing ends, and the IO6 terminal outputs a seventh control signal at regular intervals. After the timing ends, the IO9 terminal outputs an eighth control signal to transmit the residual electrical energy superimposed by the power regulation device to the energy storage device for energy storage by the energy storage device. When it is necessary to expand the output voltage range of the second output port, at this time, the first output port stops transmitting electrical energy. The IO10 terminal of the first controller U1 will output a boost signal to control the boost device to boost the electrical energy provided by the energy storage device. At the same time, the IO11 terminal of the first controller U1 outputs a first compensation signal, and the IO4 terminal outputs a first inversion signal to control the first power transistor Q1 to conduct and the first converter T2 to invert the compensated electrical energy and output the seventh electrical energy. The seventh electrical energy is transmitted to the first transformer B1 through the second capacitor C2 and is superimposed with the electrical energy output by the second transformer B2 to output the tenth electrical energy. The tenth electrical energy is transmitted to the second output port after being processed by the power regulation device, the second converter T3 and the fifth capacitor C5. Similarly, when it is necessary to expand the output voltage range of the first output port,The second output port stops receiving electrical energy, and the boost device performs boost operation. The IO12 terminal of the first controller U1 outputs a second compensation signal and controls the second power transistor Q2 to conduct. The second converter T3 performs an inversion process on the compensated electrical energy and outputs the eighth electrical energy. The power adjustment device transmits the eighth electrical energy, and superimposes it with the first electrical energy transmitted by the first transformer B1 through the second transformer B2 to output the ninth electrical energy. The ninth electrical energy is transmitted to the first output module 5 through the first adjustment module 3.,

[0060] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.,

[0061] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.,

Claims

1. A bidirectional multi-channel AC / DC conversion circuit for electric energy, characterized in that: The electric energy bidirectional multi-channel AC / DC conversion circuit comprises: a power multi-channel distribution module, an intelligent control module, a first regulating module, a second regulating module, a first output module, a second output module, an energy storage control module and a compensation control module; The power multi-channel power distribution module includes a power interface, a first inverter, a first inductor, a first capacitor, a first transformer and a second transformer; The first end and the second end of the power interface are connected to the first end and the second end of the first inverter respectively, the third end of the first inverter is connected to one end of the first capacitor and the first end of the primary side of the first transformer through the first inductor, the second end of the primary side of the first transformer is connected to the first end of the primary side of the second transformer, the fourth end of the first inverter is connected to the other end of the first capacitor and the second end of the primary side of the second transformer, the first end and the second end of the secondary side of the first transformer are connected to the first regulating module, and the first end and the second end of the secondary side of the second transformer are connected to the second regulating module; The first regulating module includes a first thyristor, a third capacitor, a second capacitor, a second inductor, a second thyristor, a first diode, a second diode and a first converter; the intelligent control module includes a first controller; One end of the first thyristor is connected to the first end of the secondary side of the first transformer and one end of the second capacitor and connected to one end of the second thyristor through the second inductor, the other end of the second thyristor is connected to the first end of the first converter, the other end of the second capacitor and the energy storage control module, the other end of the first thyristor is connected to the second end of the secondary side of the first transformer and the second end of the first converter through the third capacitor, the control end of the first thyristor is connected to the IO2 end of the first controller and the cathode of the second diode, the anode of the second diode is connected to the anode of the first diode and the IO1 end of the first controller, the cathode of the first diode is connected to the IO3 end of the first controller and the control end of the second thyristor, the third end and the fourth end of the first inverter are connected to the first output module, and the fifth end of the first inverter is connected to the IO4 end of the first controller; The second regulating module includes a power regulating device and a second converter; The first end and the second end of the power regulating device are connected to the first end and the second end of the secondary side of the second transformer respectively, the third end and the fourth end of the power regulating device are connected to the first end and the second end of the second converter respectively, the third end and the fourth end of the second converter are connected to the second output module, the fifth end of the second converter is connected to the IO7 end of the first controller, and the fifth end, the sixth end and the seventh end of the power regulating device are connected to the IO4 end, the IO5 end and the IO6 end of the first controller respectively; The first output module includes a fourth capacitor and a first output port; the second output module includes a fifth capacitor and a second output port; The first end of the first output port is connected to the third end of the first converter and connected to the second end of the first output port, the fourth end of the first converter, the fourth end of the second converter, one end of the fifth capacitor, the second end of the second output port and the ground through the fourth capacitor, and the first end of the second output port is connected to the other end of the fifth capacitor and the third end of the second converter; The energy storage control module includes a third thyristor, a fourth thyristor, a sixth capacitor and an energy storage device; The anode of the third thyristor is connected to the first end of the first converter, the cathode of the third thyristor is connected to the first end of the energy storage device and the cathode of the fourth thyristor and connected to the second end of the energy storage device and the ground through the sixth capacitor, the anode of the fourth thyristor is connected to the first end of the second converter, and the control end of the third thyristor and the control end of the fourth thyristor are connected to the IO8 end and the IO9 end of the first controller respectively; The compensation control module includes a boost device, a seventh capacitor, a first power tube and a second power tube; The input end of the boost device is connected to the first end of the energy storage device, the output end of the boost device is connected to the drain of the first power tube and the drain of the second power tube and is connected to the ground end of the boost device, the second end of the energy storage device and the ground end through the seventh capacitor, the source of the first power tube and the source of the second power tube are respectively connected to the third end of the first converter and the third end of the second converter, the gate of the first power tube and the gate of the second power tube are respectively connected to the IO11 end and IO112 end of the first controller, and the control end of the boost device is connected to the IO10 end of the first controller.

Images