Energy-saving high-efficiency power supply management control circuit for motor

Abstract

The invention discloses a motor energy-saving high-efficiency power supply management control circuit, and relates to the technical field of motor electric energy management, and the circuit comprises a frequency conversion module which can carry out multi-path frequency conversion and power supply, and when frequency conversion is stopped, an energy-saving module transmits regenerative electric energy generated by a first motor module and a second motor module to a first battery module and a second battery module, when the sum of the generated regenerative electric energy is larger than a set low-voltage threshold value and smaller than a charging threshold value, the regenerative electric energy is subjected to hybrid superposition processing, power is supplied to a first motor module through an energy-saving module, and meanwhile a detection module detects the voltage states of a first battery module and a second battery module; and according to the full-charge or low-voltage state of the first battery module and the second battery module, the energy storage state and the discharge state of the first battery module and the second battery module are controlled. The energy-saving and efficient power supply management control circuit for the motor can avoid energy waste and improve the utilization rate of electric energy and the energy-saving effect of the motor.

Description

Technical Field

[0001] This invention relates to the field of motor power management technology, specifically a motor energy-saving and efficient power supply management and control circuit. Background Technology

[0002] A machine tool is a machine used to manufacture machinery and equipment. Machine tools typically have two or more motors. These motors primarily drive the spindle and provide power, ensuring the machine tool's normal operation and machining accuracy. In existing technology, when a motor stops working, it generates some regenerative electrical energy due to inertia. To improve the motor's energy efficiency, energy storage devices, such as batteries, are used for energy storage control. However, as the motor speed gradually decreases, the regenerative electrical energy generated between the two sets of motors cannot coordinate with each other to supply power, resulting in insufficient charging voltage for the energy storage device. Consequently, the regenerative electrical energy cannot be stored, leading to energy waste. Furthermore, when the energy storage device's power level drops below a certain value, it cannot maintain power supply, resulting in low energy utilization. Therefore, improvements are needed. Summary of the Invention

[0003] This invention provides an energy-saving and efficient power supply management and control circuit for motors to solve the problems mentioned in the background art.

[0004] According to an embodiment of the present invention, a motor energy-saving and high-efficiency power supply management and control circuit is provided, comprising: The frequency converter module, connected to the transmission module, is used for dual-branch inverter regulation and to supply power to the first motor module and the second motor module. Both the first motor module and the second motor module are connected to the frequency converter module and the energy-saving module, and are used for power conversion and power supply to the energy-saving module. The hybrid module, connected to the first motor module, the energy-saving module, and the second motor module, is used to detect the voltage of the first motor module and the second motor module and perform addition processing. When the sum of the signals is greater than the low voltage threshold and lower than the charging threshold, it outputs a hybrid signal and supplies power to the energy-saving module. The detection module is connected to the first battery module and the second battery module and is used to perform low voltage and full charge detection on the first battery module and the second battery module. The microcontroller module is connected to the frequency converter module, energy-saving module, hybrid module, detection module, and transmission module. It is used to control the frequency converter module to perform dual-channel inversion and control the power transmission of the energy-saving module according to the inversion status. It receives the hybrid signal and controls the energy-saving module to stop supplying power to the second motor module. When the energy-saving module is stopped, it controls the hybrid module to perform addition. During the inversion, when the first battery module or the second battery module is fully charged, it controls the transmission module to discharge. When both are at low voltage, it controls the transmission module to provide hybrid power. An energy-saving module, connected to the first battery module and the second battery module, is used for transformer filtering and rectification and to supply power to the first battery module and the second battery module; The transmission module is connected to the detection module, the first battery module, and the second battery module. When the first battery module is fully charged, it controls the first battery module to supply power to the frequency converter module, and the first battery module or the energy-saving module to supply power to the second battery module. When the second battery module is fully charged, it controls the second battery module to supply power to the frequency converter module, and the second battery module or the energy-saving module to supply power to the first battery module. When both the first battery module and the second battery module are at low voltage, it adds electrical energy and supplies power to the frequency converter module. Both the first and second battery modules are used to store and discharge input electrical energy.

[0005] As a further embodiment of the present invention: the frequency converter module includes a power interface, a first capacitor, a first frequency converter, and a second frequency converter; the microcontroller module includes a first controller; the first motor module includes a first motor; and the second motor module includes a second motor. Preferably, the first end of the power interface is connected to the first end of the first frequency converter and the first end of the second frequency converter, and is connected to the second end of the power interface, the second end of the first frequency converter, the second end of the second frequency converter and the ground terminal through the first capacitor. The third and fourth ends of the first frequency converter are respectively connected to the first end and the second end of the first motor. The third and fourth ends of the second frequency converter are respectively connected to the first end and the second end of the second motor. The fifth ends of the first frequency converter and the fifth ends of the second frequency converter are respectively connected to the IO13 and IO12 ends of the first controller.

[0006] As a further embodiment of the present invention: the hybrid module includes a first transformer, a first thyristor, and a second thyristor; Preferably, the first and second ends of the primary side of the first transformer are respectively connected to one end of the first thyristor and one end of the second thyristor, the other ends of the first thyristor and the second thyristor are respectively connected to the first and second ends of the second motor, the first end of the secondary side of the first transformer is connected to the fourth end of the first transformer, and the second end of the secondary side of the first transformer is connected to the energy-saving module.

[0007] As a further embodiment of the present invention: the energy-saving module includes a fifth thyristor, a sixth thyristor, a first inductor, a fourth capacitor, a second transformer, a second inductor, a fifth capacitor, and a first rectifier; the first battery module includes a first battery; Preferably, one end of the fifth thyristor and one end of the sixth thyristor are respectively connected to the first end of the first motor and the second end of the secondary side of the first transformer. The other end of the fifth thyristor is connected to the first end of the primary side of the second transformer through the first inductor. The second end of the primary side of the second transformer is connected to the other end of the sixth thyristor through the fourth capacitor. The control terminals of the fifth and sixth thyristors are both connected to the IO4 terminal of the first controller. The first end of the secondary side of the second transformer is connected to the first end of the first rectifier through the second inductor. The second end of the secondary side of the second transformer is connected to the second end of the first rectifier through the fifth capacitor. The third and fourth terminals of the first rectifier are respectively connected to the first and second terminals of the first battery.

[0008] As a further embodiment of the present invention: the energy-saving module further includes a seventh thyristor, an eighth thyristor, and a transformer filter; the second battery module includes a second battery; Preferably, one end of the seventh thyristor and one end of the eighth thyristor are respectively connected to the first and second ends of the second motor, the other ends of the seventh thyristor and the other ends of the eighth thyristor are respectively connected to the first and second ends of the transformer filter, the third and fourth ends of the transformer filter are respectively connected to the first and second ends of the first battery, and the control end of the seventh thyristor is connected to the control end of the eighth thyristor and the IO5 end of the first controller.

[0009] As a further embodiment of the present invention: the transmission module includes a first diode, a first power transistor, a third power transistor, a second capacitor, a fourth thyristor, a fourth diode, a third capacitor, a fourth power transistor, a second power transistor, a fifth diode, a second diode, and a third diode; Preferably, the cathode of the first diode is connected to the first terminal of the power interface, the anode of the first diode is connected to the source of the first power transistor and the source of the third power transistor, the drain of the first power transistor is connected to one terminal of the fourth thyristor and the first terminal of the second battery, and is connected to the second terminal of the second battery and the drain of the second power transistor through the third capacitor, the drain of the third power transistor is connected to the first terminal of the first battery, and is connected to the other terminal of the fourth thyristor, the drain of the fourth power transistor and the second terminal of the first battery through the second capacitor, the source of the second power transistor is connected to the source of the fourth power transistor and the second terminal of the power interface, the control terminal of the fourth thyristor is connected to the anode of the fourth diode, the anode of the fifth diode and the IO3 terminal of the first controller, the gate of the third power transistor is connected to the cathode of the fourth diode and the cathode of the second diode, the anode of the second diode is connected to the gate of the fourth power transistor and the IO1 terminal of the first controller, the gate of the second power transistor is connected to the cathode of the fifth diode and the cathode of the third diode, and the anode of the third diode is connected to the gate of the first power transistor and the IO1 terminal of the first controller.

[0010] As a further embodiment of the present invention: the transmission module further includes a fifth power transistor, a sixth power transistor, a sixth diode, a seventh diode, and a third thyristor; Preferably, the source of the fifth power transistor is connected to the first terminal of the first battery, the drain of the fifth power transistor is connected to the drain of the sixth power transistor, the source of the sixth power transistor is connected to the first terminal of the second battery, the gate of the fifth power transistor is connected to the anode of the seventh diode, the cathode of the seventh diode is connected to the cathode of the sixth diode and the control terminal of the third thyristor, the anode of the sixth diode is connected to the gate of the sixth power transistor and the detection module, and the first and second terminals of the third thyristor are respectively connected to the second terminals of the first battery and the second terminals of the second battery.

[0011] As a further embodiment of the present invention: the detection module includes a first resistor, a second resistor, a third resistor, an eighth diode, and a first detection device; Preferably, the cathode of the eighth diode is connected to the input terminal of the first detection device, one end of the first resistor, and one end of the second resistor through the third resistor. The other end of the first resistor and the other end of the second resistor are respectively connected to the first terminal and the second terminal of the first battery. The anode of the eighth diode is connected to the IO1 terminal of the first controller and the gate of the sixth power transistor. The output terminal of the first detection device is connected to the IO11 terminal of the first controller.

[0012] As a further embodiment of the present invention, the detection module also includes a battery detection device; Preferably, the first and second ends of the battery detection device are connected to the first and second ends of the second battery, respectively; the third end of the battery detection device is connected to the IO6 end of the first controller and the gate of the fifth power transistor; and the fourth end of the battery detection device is connected to the IO7 end of the first controller.

[0013] As a further embodiment of the present invention: the hybrid module further includes a sampling processing device, an adder, a first comparator, a second comparator, a first logic chip, and a voltage threshold device; Preferably, the first and second terminals of the sampling processing device are connected to the first and second terminals of the first battery, respectively; the third and fourth terminals of the sampling processing device are connected to the first and second terminals of the second battery, respectively; the fifth terminal of the sampling processing device is connected to the first terminal of the adder; the sixth terminal of the sampling processing device is connected to the second terminal of the adder; the third terminal of the adder is connected to the inverting terminal of the first comparator and the non-inverting terminal of the second comparator; the non-inverting terminal of the first comparator and the inverting terminal of the second comparator are connected to the first and second terminals of the voltage thresholding device, respectively; the fourth terminal of the adder is connected to the IO8 terminal of the first controller; the output terminals of the first and second comparators are connected to the A and B terminals of the first logic chip, respectively; and the Y terminal of the first logic chip is connected to the control terminal of the second thyristor and the IO9 terminal of the first controller.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The energy-saving and high-efficiency power supply management and control circuit of the present invention can perform multi-channel frequency conversion through the frequency conversion module and supply power to the first motor module and the second motor module. When the frequency conversion is stopped, the energy-saving module transmits the regenerative energy generated by the first motor module and the second motor module to the first battery module and the second battery module respectively. When the sum of the generated regenerative energy is greater than the set low voltage threshold and lower than the charging threshold, the mixing module will mix and superimpose the regenerative energy generated by the first motor module and the second motor module and supply power to the first motor module through the energy-saving module. At the same time, the detection module detects the voltage status of the first battery module and the second battery module, and controls the energy storage and discharge status of the first battery module and the second battery module according to the full charge or low voltage status of the first battery module and the second battery module, thereby improving the energy utilization rate of the battery module and improving the energy-saving effect of the motor. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic block diagram of a motor energy-saving and high-efficiency power supply management and control circuit provided in an embodiment of the present invention.

[0017] Figure 2 This is a circuit diagram of an energy-saving and efficient power supply management and control circuit for a motor, provided as an embodiment of the present invention.

[0018] Figure 3 This is a first connection circuit diagram of an energy-saving module provided in an embodiment of the present invention.

[0019] Figure 4 This is a second connection circuit diagram for the energy-saving module provided in an embodiment of the present invention.

[0020] Figure 5 This is a first connection circuit diagram of the detection module provided in an embodiment of the present invention.

[0021] Figure 6 This is a second connection circuit diagram for the detection module provided in an embodiment of the present invention.

[0022] Figure 7 The connection circuit diagram of the hybrid module provided in the embodiment of the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In one embodiment, see Figure 1 A motor energy-saving and high-efficiency power supply management and control circuit, comprising: Specifically, the frequency converter module 1 is connected to the transmission module 10 and is used for dual-branch inverter regulation and to supply power to the first motor module 2 and the second motor module 3; The first motor module 2 and the second motor module 3 are both connected to the frequency converter module 1 and the energy-saving module 6, and are both used for power conversion and to supply power to the energy-saving module 6. The hybrid module 4 is connected to the first motor module 2, the energy-saving module 6, and the second motor module 3. It is used to detect the voltage of the first motor module 2 and the second motor module 3 and perform addition processing. When the sum of the signals is greater than the low voltage threshold and lower than the charging threshold, it outputs a hybrid signal and supplies power to the energy-saving module 6. The detection module 7 is connected to the first battery module 8 and the second battery module 9, and is used to perform low voltage and full charge detection on the first battery module 8 and the second battery module 9. The microcontroller module 5 is connected to the frequency converter module 1, the energy-saving module 6, the hybrid module 4, the detection module 7, and the transmission module 10. It is used to control the frequency converter module 1 to perform dual-path inversion and control the power transmission of the energy-saving module 6 according to the inversion status. It receives the hybrid signal and controls the energy-saving module 6 to stop supplying power to the second motor module 3. When the control of the energy-saving module 6 is stopped, it controls the hybrid module 4 to perform addition. During the inversion, when the first battery module 8 or the second battery module 9 is fully charged, it controls the transmission module 10 to discharge. When both are at low voltage, it controls the transmission module 10 to supply power in a hybrid manner. Energy-saving module 6 is connected to the first battery module 8 and the second battery module 9, and is used for transformer filtering and rectification and to supply power to the first battery module 8 and the second battery module 9; The transmission module 10 is connected to the detection module 7, the first battery module 8, and the second battery module 9. When the first battery module 8 is fully charged, it controls the first battery module 8 to supply power to the frequency converter module 1, and the first battery module 8 or the energy-saving module 6 to supply power to the second battery module 9. When the second battery module 9 is fully charged, it controls the second battery module 9 to supply power to the frequency converter module 1, and the second battery module 9 or the energy-saving module 6 to supply power to the first battery module 8. When both the first battery module 8 and the second battery module 9 are at low voltage, it adds electrical energy and supplies power to the frequency converter module 1. The first battery module 8 and the second battery module 9 are both used to store input electrical energy and discharge it.

[0025] A further manifestation is: The frequency converter module 1 is used to receive the first drive signal output by the microcontroller module 5 and perform inverter regulation on the DC power and the power provided by the transmission module 10 and output the first power; it also receives the second drive signal output by the microcontroller module 5 and performs inverter regulation to output the second power. The first motor module 2 is used to convert the first electrical energy into mechanical energy and provide the first regenerative electrical energy when the first electrical energy is no longer received; The second motor module 3 is used to convert the second electrical energy into mechanical energy and provide the second regenerative electrical energy when the second electrical energy is no longer received; The hybrid module 4 is used to sample the voltage of the first regenerated energy and the second regenerated energy. When it receives the first control signal output by the microcontroller module 5 and the sum of the sampled signals is greater than the set low voltage threshold and lower than the charging threshold, it outputs a hybrid signal and provides the third regenerated energy. The microcontroller module 5 is used to provide a first drive signal and a second drive signal. When the output of the first drive signal stops, it outputs a first charging signal. When the output of the second drive signal stops, it outputs a second charging signal. When a mixed signal is received, it stops outputting the second charging signal. When both the first drive signal and the second drive signal stop outputting, it outputs a first control signal. During frequency conversion operation, when the first full charge signal is received from the detection module 7, it outputs a first discharge signal. When the second full charge signal is received from the detection module 7, it outputs a second discharge signal. When the first undervoltage signal and the second undervoltage signal are received from the detection module 7, it outputs a second control signal. Energy-saving module 6 is used to receive the first charging signal and perform transformation, filtering and rectification on the first regenerated power or the third regenerated power, and output the third power; receive the second charging signal and perform power conversion on the second regenerated power, and output the fourth power; and transmit the third power and the fourth power to the first battery module 8 and the second battery module 9 respectively. The detection module 7 is used to detect undervoltage and full charge of the first battery module 8 and the second battery module 9. When the first battery module 8 is undervoltage, it outputs a first undervoltage signal and when it is fully charged, it outputs a first full charge signal. When the second battery module 9 is undervoltage, it outputs a second undervoltage signal and when it is fully charged, it outputs a second full charge signal. The first battery module 8 is used for receiving and storing electrical energy, providing the fifth type of electrical energy; The second battery module 9 is used for receiving and storing electrical energy, providing a sixth source of electrical energy; The transmission module 10 is used to transmit the fifth electrical energy to the frequency converter module 1 and the fifth or third electrical energy to the second battery module 9 when it receives the first full charge signal; to transmit the sixth electrical energy to the frequency converter module 1 and the sixth or fourth electrical energy to the first battery module 8 when it receives the second full charge signal; and to perform electrical energy superposition and provide the seventh electrical energy to the frequency converter module 1 when it receives the second control signal.

[0026] In a specific embodiment, the frequency conversion module 1 can be a multi-channel frequency conversion circuit composed of a power interface, a frequency converter, and a capacitor, which can accept DC power and perform frequency conversion processing on the input power; the first motor module 2 can be a first motor circuit composed of a motor, which converts electrical energy into mechanical energy and generates regenerative electrical energy; the second motor module 3 can be a second motor circuit composed of a motor, which converts electrical energy into mechanical energy and generates regenerative electrical energy; the hybrid module 4 can be a hybrid control circuit composed of a sampling processing device, an adder, a comparator, a transformer, etc., which can perform voltage sampling, addition calculation, voltage comparison, power transmission, and power mixing and superposition processing, wherein the voltage of the signal after addition calculation is compared with a set low-voltage threshold and a charging threshold, the low-voltage threshold being the minimum charging voltage of the first battery module 8, and the charging threshold being the maximum charging voltage; the microcontroller module 5 can be a microcontroller circuit composed of a single-chip microcomputer, which integrates... The arithmetic logic unit (ALU), controller, memory, and input / output devices, among other components, enable signal processing, data storage, module control, and timing control. The energy-saving module 6 can employ an energy-saving control circuit composed of thyristors, transformers, resistors, and capacitors to achieve power transmission control, power filtering, voltage transformation, and rectification. The detection module 7 can employ a battery detection circuit composed of resistors, diodes, and detection devices to perform full-charge and low-charge detection on the first battery module 8 and the second battery module 9, respectively. The first battery module 8 can be a first battery circuit composed of rechargeable batteries, enabling energy storage and discharge. The second battery module 9 can be a second battery circuit composed of rechargeable batteries, also enabling energy storage and discharge. The transmission module 10 can employ a power supply mode circuit composed of field-effect transistors, capacitors, and thyristors, enabling either the first battery module 8 or the second battery module 9 to provide individual or mixed power to the frequency converter module 1.

[0027] In another embodiment, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The frequency converter module 1 includes a power interface, a first capacitor C1, a first frequency converter T1, and a second frequency converter T2; the microcontroller module 5 includes a first controller U1; the first motor module 2 includes a first motor; and the second motor module 3 includes a second motor. Specifically, the first end of the power interface is connected to the first end of the first frequency converter T1 and the first end of the second frequency converter T2, and is connected to the second end of the power interface, the second end of the first frequency converter T1, the second end of the second frequency converter T2 and the ground terminal through the first capacitor C1. The third and fourth ends of the first frequency converter T1 are connected to the first and second ends of the first motor, respectively. The third and fourth ends of the second frequency converter T2 are connected to the first and second ends of the second motor, respectively. The fifth ends of the first frequency converter T1 and the fifth ends of the second frequency converter T2 are connected to the IO13 and IO12 ends of the first controller U1, respectively.

[0028] In a specific embodiment, both the first frequency converter T1 and the second frequency converter T2 can be frequency converters composed of four IGBTs; the first controller U1 can be an STM32 microcontroller; and both the first motor and the second motor can be AC ​​motors.

[0029] Furthermore, the hybrid module 4 includes a first transformer B1, a first thyristor S1, and a second thyristor S2; Specifically, the first and second ends of the primary side of the first transformer B1 are respectively connected to one end of the first thyristor S1 and one end of the second thyristor S2, the other end of the first thyristor S1 and the other end of the second thyristor S2 are respectively connected to the first and second ends of the second motor, the first end of the secondary side of the first transformer B1 is connected to the fourth end of the first transformer B1, and the second end of the secondary side of the first transformer B1 is connected to the energy-saving module 6.

[0030] In a specific embodiment, both the first thyristor S1 and the second thyristor S2 can be bidirectional thyristors.

[0031] Furthermore, the energy-saving module 6 includes a fifth thyristor S5, a sixth thyristor S6, a first inductor L1, a fourth capacitor C4, a second transformer B2, a second inductor L2, a fifth capacitor C5, and a first rectifier T3; the first battery module 8 includes a first battery; Specifically, one end of the fifth thyristor S5 and one end of the sixth thyristor S6 are respectively connected to the first end of the first motor and the second end of the secondary side of the first transformer B1. The other end of the fifth thyristor S5 is connected to the first end of the primary side of the second transformer B2 through the first inductor L1. The second end of the primary side of the second transformer B2 is connected to the other end of the sixth thyristor S6 through the fourth capacitor C4. The control terminals of the fifth thyristor S5 and the sixth thyristor S6 are both connected to the IO4 terminal of the first controller U1. The first end of the secondary side of the second transformer B2 is connected to the first end of the first rectifier T3 through the second inductor L2. The second end of the secondary side of the second transformer B2 is connected to the second end of the first rectifier T3 through the fifth capacitor C5. The third and fourth ends of the first rectifier T3 are respectively connected to the first and second ends of the first battery.

[0032] In a specific embodiment, both the fifth thyristor S5 and the sixth thyristor S6 can be bidirectional thyristors; the first inductor L1, the fourth capacitor C4, the second transformer B2, the second inductor L2, and the fifth capacitor C5 are used for voltage transformation and filtering; the first battery can be a storage battery.

[0033] Furthermore, the energy-saving module 6 also includes a seventh thyristor S7, an eighth thyristor S8, and a transformer filter device; the second battery module 9 includes a second battery; Specifically, one end of the seventh thyristor S7 and one end of the eighth thyristor S8 are respectively connected to the first and second ends of the second motor. The other ends of the seventh thyristor S7 and the eighth thyristor S8 are respectively connected to the first and second ends of the transformer filter device. The third and fourth ends of the transformer filter device are respectively connected to the first and second ends of the first battery. The control terminal of the seventh thyristor S7 is connected to the control terminal of the eighth thyristor S8 and the IO5 terminal of the first controller U1.

[0034] In a specific embodiment, both the seventh thyristor S7 and the eighth thyristor S8 can be bidirectional thyristors; the circuit structure of the transformer filter device is the same as that of the first inductor L1, the fourth capacitor C4, the second transformer B2, the second inductor L2, the fifth capacitor C5 and the first rectifier T3; the selection of the second battery is the same as that of the first battery.

[0035] Furthermore, the transmission module 10 includes a first diode D1, a first power transistor Q1, a third power transistor Q3, a second capacitor C2, a fourth thyristor S4, a fourth diode D4, a third capacitor C3, a fourth power transistor Q4, a second power transistor Q2, a fifth diode D5, a second diode D2, and a third diode D3; Specifically, the cathode of the first diode D1 is connected to the first terminal of the power interface; the anode of the first diode D1 is connected to the source of the first power transistor Q1 and the source of the third power transistor Q3; the drain of the first power transistor Q1 is connected to one terminal of the fourth thyristor S4 and the first terminal of the second battery, and is connected to the second terminal of the second battery and the drain of the second power transistor Q2 through the third capacitor C3; the drain of the third power transistor Q3 is connected to the first terminal of the first battery, and is connected to the other terminal of the fourth thyristor S4, the drain of the fourth power transistor Q4, and the second terminal of the first battery through the second capacitor C2; and the source of the second power transistor Q2 is connected to the fourth power transistor Q3. The source of 4 and the second terminal of the power interface, the control terminal of the fourth thyristor S4 is connected to the anode of the fourth diode D4, the anode of the fifth diode D5 and the IO3 terminal of the first controller U1, the gate of the third power transistor Q3 is connected to the cathode of the fourth diode D4 and the cathode of the second diode D2, the anode of the second diode D2 is connected to the gate of the fourth power transistor Q4 and the IO1 terminal of the first controller U1, the gate of the second power transistor Q2 is connected to the cathode of the fifth diode D5 and the cathode of the third diode D3, and the anode of the third diode D3 is connected to the gate of the first power transistor Q1 and the IO1 terminal of the first controller U1.

[0036] In a specific embodiment, the first power transistor Q1, the third power transistor Q3, the fourth power transistor Q4, and the second power transistor Q2 can all be N-channel field-effect transistors. The first power transistor Q1 and the second power transistor Q2 control the second battery and the power interface to form a circuit, and the third power transistor Q3 and the fourth power transistor Q4 control the first battery and the power interface to form a circuit. The fourth thyristor S4 can be a bidirectional thyristor.

[0037] Furthermore, the transmission module 10 also includes a fifth power transistor Q5, a sixth power transistor Q6, a sixth diode D6, a seventh diode D7, and a third thyristor S3; Specifically, the source of the fifth power transistor Q5 is connected to the first terminal of the first battery, the drain of the fifth power transistor Q5 is connected to the drain of the sixth power transistor Q6, the source of the sixth power transistor Q6 is connected to the first terminal of the second battery, the gate of the fifth power transistor Q5 is connected to the anode of the seventh diode D7, the cathode of the seventh diode D7 is connected to the cathode of the sixth diode D6 and the control terminal of the third thyristor S3, the anode of the sixth diode D6 is connected to the gate of the sixth power transistor Q6 and the detection module 7, and the first and second terminals of the third thyristor S3 are respectively connected to the second terminals of the first battery and the second terminal of the second battery.

[0038] In a specific embodiment, both the fifth power transistor Q5 and the sixth power transistor Q6 can be N-channel MOSFETs to control the interaction of electrical energy; the third thyristor S3 can be a bidirectional thyristor.

[0039] In another embodiment, please refer to Figure 1 , Figure 2, Figure 5 , Figure 6 and Figure 7 The detection module 7 includes a first resistor R1, a second resistor R2, a third resistor R3, an eighth diode D8, and a first detection device; Specifically, the cathode of the eighth diode D8 is connected to the input terminal of the first detection device, one end of the first resistor R1, and one end of the second resistor R2 through the third resistor R3. The other end of the first resistor R1 and the other end of the second resistor R2 are respectively connected to the first terminal and the second terminal of the first battery. The anode of the eighth diode D8 is connected to the IO1 terminal of the first controller U1 and the gate of the sixth power transistor Q6. The output terminal of the first detection device is connected to the IO11 terminal of the first controller U1.

[0040] In a specific embodiment, the first resistor R1 and the second resistor R2 are used for voltage sampling; the third resistor R3 and the eighth diode D8 are set to a full-charge threshold. When the sampled signal is greater than the set full-charge threshold, the battery is fully charged; the first detection device can be composed of a reference power supply, a resistor and a comparator. A voltage threshold is set. When the sampled signal is less than the voltage threshold, it indicates that the first battery is in a low-voltage state. The voltage threshold is the minimum input voltage of the first frequency converter T1.

[0041] Furthermore, the detection module 7 also includes a battery detection device; Specifically, the first and second ends of the battery detection device are connected to the first and second ends of the second battery, respectively; the third end of the battery detection device is connected to the IO6 end of the first controller U1 and the gate of the fifth power transistor Q5; and the fourth end of the battery detection device is connected to the IO7 end of the first controller U1.

[0042] In a specific embodiment, the circuit structure of the battery detection device is the same as that of the first resistor R1, the second resistor R2, the third resistor R3, the eighth diode D8, and the first detection device.

[0043] Furthermore, the hybrid module 4 also includes a sampling processing device, an adder, a first comparator A1, a second comparator A2, a first logic chip J1, and a voltage threshold device; Specifically, the first and second terminals of the sampling processing device are connected to the first and second terminals of the first battery, respectively; the third and fourth terminals of the sampling processing device are connected to the first and second terminals of the second battery, respectively; the fifth terminal of the sampling processing device is connected to the first terminal of the adder; the sixth terminal of the sampling processing device is connected to the second terminal of the adder; the third terminal of the adder is connected to the inverting terminal of the first comparator A1 and the non-inverting terminal of the second comparator A2; the non-inverting terminal of the first comparator A1 and the inverting terminal of the second comparator A2 are connected to the first and second terminals of the voltage threshold device, respectively; the fourth terminal of the adder is connected to the IO8 terminal of the first controller U1; the output terminals of the first comparator A1 and the second comparator A2 are connected to the A and B terminals of the first logic chip J1, respectively; and the Y terminal of the first logic chip J1 is connected to the control terminal of the second thyristor S2 and the IO9 terminal of the first controller U1.

[0044] In a specific embodiment, the sampling processing device can be composed of a resistor and a rectifier to sample voltage and rectify the sampled signal; the voltage threshold device can be composed of a reference power supply and a resistor to provide a charging threshold and a low voltage threshold; the first comparator A1 and the second comparator A2 can both be LM358 comparators; the adder can be composed of a transistor, an operational amplifier, and a resistor, with the operational amplifier and resistor adding the input positive voltage in phase, and the transistor controlling the power transfer and powering the operational amplifier, thereby controlling the operational amplifier to start, that is, the signal output from the IO8 terminal of the first controller U1 controls the power transfer of the transistor; the first logic chip J1 can be an AND gate chip.

[0045] In this embodiment, a motor energy-saving and high-efficiency power supply management and control circuit receives DC power through a power interface. A first capacitor C1 filters the power. The IO12 and IO13 terminals of the first controller U1 output a first drive signal and a second drive signal, respectively, driving the first frequency converter T1 and the second frequency converter T2 for frequency conversion processing. These signals output the first and second electrical energy, respectively, driving the first and second motors. When the first drive signal is stopped, the first motor generates first regenerative electrical energy. The IO4 terminal of the first controller U1 outputs a first charging signal and controls the fifth thyristor S5 and the sixth thyristor S6 to conduct and transmit the first regenerative electrical energy. This energy then passes through the first inductor L1, the fourth capacitor C4, the second transformer B2, and the second... After transformation, filtering, and rectification by inductor L2, fifth capacitor C5, and first rectifier T3, the third electrical energy is output. Similarly, after the second drive signal is stopped, the IO5 terminal of the first controller U1 outputs the second charging signal. The second regenerative electrical energy generated by the second motor is processed by the seventh thyristor S7, eighth thyristor S8, and the transformer and filter device to output the fourth electrical energy. This third electrical energy is stored in the first battery, and the fourth electrical energy is stored in the second battery. At the same time, when both the first and second drive signals stop outputting, the IO8 terminal of the first controller U1 outputs the first control signal to control the adder to start. The sampling and processing device performs voltage sampling and rectification processing on the regenerative electrical energy generated by the first motor and the second motor, respectively. The processed signal... After addition calculation by the adder, when the voltage of the resulting signal is lower than the charging threshold but higher than the low-voltage threshold, both the first comparator A1 and the second comparator A2 output a high level, causing the first logic chip J1 to output a mixed signal. This controls the second thyristor S2 and the third thyristor S3 to conduct, allowing the second regenerated energy to be superimposed on the first regenerated energy through the second transformer B2, and outputting a third regenerated energy. This third regenerated energy is processed by the energy-saving module 6 and transmitted to the first battery. Simultaneously, the first resistor R1 and the second resistor R2 sample the voltage of the first battery. When the sampled signal is greater than the full-charge threshold set by the third resistor R3 and the eighth diode D8, the sixth power transistor Q6 and the third thyristor S3 are controlled to conduct, thus turning on the input to the first... The first battery can supply power to the second battery, and the first battery can also supply power to the second battery. Similarly, when the battery detection device detects that the second battery is fully charged, it controls the power input to the second battery and the power from the second battery to supply power to the first battery. During frequency conversion operation, i.e., when the first frequency converter T1 or the second frequency converter T2 is operating, if the first battery is fully charged, the IO2 terminal of the first controller U1 outputs a first discharge signal, controlling the first power transistor Q1 and the second power transistor Q2 to conduct, thus supplying power to the first frequency converter T1 and the second frequency converter T2. Similarly, if the second battery is fully charged, the first controller U1 outputs a second discharge signal, turning on the third power transistor Q3 and the fourth power transistor Q4, thus supplying power to the first frequency converter T1 and the second frequency converter T2.If the first detection device and the battery detection device detect low voltage in the first battery and the second battery respectively, the IO3 terminal of the first controller U1 outputs a second control signal, controlling the fourth thyristor S4, the third power transistor Q3, and the second power transistor Q2 to conduct, so that the first battery and the second battery are connected in series to power the first inverter T1 and the second inverter T2.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 motor energy-saving and high-efficiency power supply management and control circuit, characterized in that, The circuit includes: The frequency converter module, connected to the transmission module, is used for dual-branch inverter regulation and to supply power to the first motor module and the second motor module. Both the first motor module and the second motor module are connected to the frequency converter module and the energy-saving module, and are used for power conversion and power supply to the energy-saving module. The hybrid module, connected to the first motor module, the energy-saving module, and the second motor module, is used to detect the voltage of the first motor module and the second motor module and perform addition processing. When the sum of the signals is greater than the low voltage threshold and lower than the charging threshold, it outputs a hybrid signal and supplies power to the energy-saving module. The detection module is connected to the first battery module and the second battery module and is used to perform low voltage and full charge detection on the first battery module and the second battery module. The microcontroller module is connected to the frequency converter module, energy-saving module, hybrid module, detection module, and transmission module. It is used to control the frequency converter module to perform dual-channel inversion and control the power transmission of the energy-saving module according to the inversion status. It receives the hybrid signal and controls the energy-saving module to stop supplying power to the second motor module. When the energy-saving module is stopped, it controls the hybrid module to perform addition. During the inversion, when the first battery module or the second battery module is fully charged, it controls the transmission module to discharge. When both are at low voltage, it controls the transmission module to provide hybrid power. An energy-saving module, connected to the first battery module and the second battery module, is used for transformer filtering and rectification and to supply power to the first battery module and the second battery module; The transmission module is connected to the detection module, the first battery module, and the second battery module. When the first battery module is fully charged, it controls the first battery module to supply power to the frequency converter module, and the first battery module or the energy-saving module to supply power to the second battery module. When the second battery module is fully charged, it controls the second battery module to supply power to the frequency converter module, and the second battery module or the energy-saving module to supply power to the first battery module. When both the first battery module and the second battery module are at low voltage, it adds electrical energy and supplies power to the frequency converter module. Both the first and second battery modules are used to store and discharge input electrical energy.

2. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 1, characterized in that, The frequency conversion module includes a power interface, a first capacitor, a first frequency converter, and a second frequency converter; the microcontroller module includes a first controller; the first motor module includes a first motor; and the second motor module includes a second motor. The first end of the power interface is connected to the first end of the first frequency converter and the first end of the second frequency converter, and is connected to the second end of the power interface, the second end of the first frequency converter, the second end of the second frequency converter and the ground through the first capacitor. The third and fourth ends of the first frequency converter are respectively connected to the first end and the second end of the first motor. The third and fourth ends of the second frequency converter are respectively connected to the first end and the second end of the second motor. The fifth ends of the first frequency converter and the fifth ends of the second frequency converter are respectively connected to the IO13 and IO12 ends of the first controller.

3. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 2, characterized in that, The hybrid module includes a first transformer, a first thyristor, and a second thyristor; The first and second ends of the primary side of the first transformer are respectively connected to one end of the first thyristor and one end of the second thyristor. The other ends of the first and second thyristors are respectively connected to the first and second ends of the second motor. The first end of the secondary side of the first transformer is connected to the fourth end of the first transformer. The second end of the secondary side of the first transformer is connected to the energy-saving module.

4. The energy-saving and efficient power supply management and control circuit for a motor according to claim 3, characterized in that, The energy-saving module includes a fifth thyristor, a sixth thyristor, a first inductor, a fourth capacitor, a second transformer, a second inductor, a fifth capacitor, and a first rectifier; the first battery module includes a first battery; One end of the fifth thyristor and one end of the sixth thyristor are respectively connected to the first end of the first motor and the second end of the secondary side of the first transformer. The other end of the fifth thyristor is connected to the first end of the primary side of the second transformer through the first inductor. The second end of the primary side of the second transformer is connected to the other end of the sixth thyristor through the fourth capacitor. The control terminals of the fifth and sixth thyristors are both connected to the IO4 terminal of the first controller. The first end of the secondary side of the second transformer is connected to the first end of the first rectifier through the second inductor. The second end of the secondary side of the second transformer is connected to the second end of the first rectifier through the fifth capacitor. The third and fourth ends of the first rectifier are respectively connected to the first and second ends of the first battery.

5. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 4, characterized in that, The energy-saving module also includes a seventh thyristor, an eighth thyristor, and a transformer filter; the second battery module includes a second battery; One end of the seventh thyristor and one end of the eighth thyristor are respectively connected to the first and second ends of the second motor. The other ends of the seventh thyristor and the eighth thyristor are respectively connected to the first and second ends of the transformer filter. The third and fourth ends of the transformer filter are respectively connected to the first and second ends of the first battery. The control end of the seventh thyristor is connected to the control end of the eighth thyristor and the IO5 end of the first controller.

6. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 5, characterized in that, The transmission module includes a first diode, a first power transistor, a third power transistor, a second capacitor, a fourth thyristor, a fourth diode, a third capacitor, a fourth power transistor, a second power transistor, a fifth diode, a second diode, and a third diode; The cathode of the first diode is connected to the first terminal of the power interface. The anode of the first diode is connected to the source of the first power transistor and the source of the third power transistor. The drain of the first power transistor is connected to one terminal of the fourth thyristor and the first terminal of the second battery, and is connected to the second terminal of the second battery and the drain of the second power transistor through the third capacitor. The drain of the third power transistor is connected to the first terminal of the first battery, and is connected to the other terminal of the fourth thyristor, the drain of the fourth power transistor, and the second terminal of the first battery through the second capacitor. The source of the second power transistor is connected to the source of the fourth power transistor and the second terminal of the power interface. The control terminal of the fourth thyristor is connected to the anode of the fourth diode, the anode of the fifth diode, and the IO3 terminal of the first controller. The gate of the third power transistor is connected to the cathode of the fourth diode and the cathode of the second diode. The anode of the second diode is connected to the gate of the fourth power transistor and the IO1 terminal of the first controller. The gate of the second power transistor is connected to the cathode of the fifth diode and the cathode of the third diode. The anode of the third diode is connected to the gate of the first power transistor and the IO1 terminal of the first controller.

7. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 6, characterized in that, The transmission module also includes a fifth power transistor, a sixth power transistor, a sixth diode, a seventh diode, and a third thyristor; The source of the fifth power transistor is connected to the first terminal of the first battery, the drain of the fifth power transistor is connected to the drain of the sixth power transistor, the source of the sixth power transistor is connected to the first terminal of the second battery, the gate of the fifth power transistor is connected to the anode of the seventh diode, the cathode of the seventh diode is connected to the cathode of the sixth diode and the control terminal of the third thyristor, the anode of the sixth diode is connected to the gate of the sixth power transistor and the detection module, and the first and second terminals of the third thyristor are respectively connected to the second terminals of the first battery and the second terminals of the second battery.

8. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 7, characterized in that, The detection module includes a first resistor, a second resistor, a third resistor, an eighth diode, and a first detection device; The cathode of the eighth diode is connected to the input terminal of the first detection device, one end of the first resistor, and one end of the second resistor through the third resistor. The other end of the first resistor and the other end of the second resistor are respectively connected to the first terminal and the second terminal of the first battery. The anode of the eighth diode is connected to the IO1 terminal of the first controller and the gate of the sixth power transistor. The output terminal of the first detection device is connected to the IO11 terminal of the first controller.

9. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 8, characterized in that, The detection module also includes a battery detection device; The first and second ends of the battery detection device are respectively connected to the first and second ends of the second battery, the third end of the battery detection device is connected to the IO6 end of the first controller and the gate of the fifth power transistor, and the fourth end of the battery detection device is connected to the IO7 end of the first controller.

10. The energy-saving and high-efficiency power supply management and control circuit for a motor according to claim 3, characterized in that, The hybrid module also includes a sampling processing device, an adder, a first comparator, a second comparator, a first logic chip, and a voltage threshold device; The first and second terminals of the sampling processing device are respectively connected to the first and second terminals of the first battery. The third and fourth terminals of the sampling processing device are respectively connected to the first and second terminals of the second battery. The fifth terminal of the sampling processing device is connected to the first terminal of the adder. The sixth terminal of the sampling processing device is connected to the second terminal of the adder. The third terminal of the adder is connected to the inverting terminal of the first comparator and the non-inverting terminal of the second comparator. The non-inverting terminal of the first comparator and the inverting terminal of the second comparator are respectively connected to the first and second terminals of the voltage threshold device. The fourth terminal of the adder is connected to the IO8 terminal of the first controller. The output terminals of the first and second comparators are respectively connected to the A and B terminals of the first logic chip. The Y terminal of the first logic chip is connected to the control terminal of the second thyristor and the IO9 terminal of the first controller.

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