A digital power management system, method and apparatus

Abstract

The application relates to a digital power management system, method and device, wherein the system comprises a high-voltage linear auxiliary power supply, a high-voltage DC-DC power supply, a drive controller, a digital processor and a reference power supply; in the digital power management system, method and device, the high-voltage linear auxiliary power supply supplies power to loads, the high-voltage DC-DC power supply, the drive controller and the digital processor after linear voltage stabilization; when the high-voltage DC-DC power supply works, the high-voltage linear auxiliary power supply suspends power supply, and mainly provides power to the loads, the drive controller, the digital processor and the like by the high-voltage DC-DC power supply as a power supply, so that the problem of energy supply conflict of external energy can be prevented under the condition of realizing multi-path energy supply, and the stability of energy supply is improved.

Description

Technical Field

[0001] This invention relates to the field of power supply, and more specifically to a digital power management system, method, and apparatus. Background Technology

[0002] Digital power supplies are power products that use digital signal processors or microcontrollers as their core, controlling components such as digital power drivers and PWM controllers to achieve control, management, and monitoring functions. They modify the external characteristics of the switching power supply by setting its internal parameters, adding "power management" to "power control." Power management refers to the effective distribution of power to different components of the system to minimize losses. However, existing digital power supplies only have a single power supply path; if the digital power supply fails, it will lead to power supply interruption, severely affecting the stability of the power supply. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a digital power management system, method and apparatus, which has multiple energy supply and improves the stability of energy supply.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A digital power management system, comprising a high-voltage linear auxiliary power supply, a high-voltage DC-DC power supply, a drive controller, a digital processor, and a reference power supply;

[0005] The high-voltage linear auxiliary power supply is used to connect to three-phase AC power and convert the connected three-phase AC power to DC power, and to provide the DC power to the high-voltage DC-DC power supply in non-operating mode; it is also used to control the high-voltage DC-DC power supply to enter non-operating mode when entering operating mode; and it is also used to perform linear voltage regulation on the DC power in operating mode to obtain a first DC power supply for powering the load and a second DC power supply for powering the drive controller and the digital processor.

[0006] The digital processor is configured to acquire the voltage and current parameters of the first DC power supply under the condition of the second DC power supply; to acquire the voltage and current parameters of the reference power supply output; and to generate a first control signal based on the voltage and current parameters of the first DC power supply and the voltage and current parameters of the reference power supply output.

[0007] The drive controller is configured to acquire the first control signal under the power supply condition of the second DC power supply, generate a first PWM drive signal according to the first control signal, and drive the high-voltage linear auxiliary power supply through the first PWM drive signal to adjust the current parameters and voltage parameters of the first DC power supply.

[0008] The high-voltage DC-DC power supply is used to control the high-voltage linear auxiliary power supply to enter the non-working mode when entering the working mode; it is also used to step down the DC power in the working mode to obtain a third DC power supply for the load and a fourth DC power supply for the drive controller and the digital processor.

[0009] The digital processor is further configured to acquire the voltage and current parameters of the third DC power supply under the power supply condition of the fourth DC power supply; to acquire the voltage and current parameters of the reference power supply output reference power; and to generate a second control signal based on the voltage and current parameters of the third DC power supply and the voltage and current parameters of the reference power supply output reference power.

[0010] The drive controller is further configured to acquire the second control signal under the power supply condition of the fourth DC power supply, generate a second PWM drive signal according to the second control signal, and drive the high-voltage DC-DC power supply through the second PWM drive signal to adjust the current parameters and voltage parameters of the third DC power supply.

[0011] Based on the above-described digital power management system, the present invention also provides a digital power management method.

[0012] A digital power management method, implemented using the digital power management system described above, includes the following steps:

[0013] A high-voltage linear auxiliary power supply is connected to three-phase AC power and performs AC-DC conversion on the connected three-phase AC power to obtain DC power. In non-operating mode, the DC power is provided to the high-voltage DC-DC power supply. When the high-voltage linear auxiliary power supply enters the operating mode, it controls the high-voltage DC-DC power supply to enter the non-operating mode. In the operating mode, the high-voltage linear auxiliary power supply performs linear voltage regulation on the DC power to obtain a first DC power supply for the load and a second DC power supply for the drive controller and digital processor.

[0014] Under the power supply condition of the second DC power, the digital processor acquires the voltage and current parameters of the first DC power; the digital processor collects the voltage and current parameters of the reference power output from the reference power supply; the digital processor generates a first control signal based on the voltage and current parameters of the first DC power and the voltage and current parameters of the reference power output from the reference power supply.

[0015] Under the power supply condition of the second DC power, the drive controller acquires the first control signal, generates a first PWM drive signal according to the first control signal, and drives the high-voltage linear auxiliary power supply through the first PWM drive signal to adjust the current and voltage parameters of the first DC power.

[0016] When the high-voltage DC-DC power supply enters the working mode, it controls the high-voltage linear auxiliary power supply to enter the non-working mode; in the working mode, the high-voltage DC-DC power supply performs voltage reduction processing on the DC power to obtain a third DC power supply for the load and a fourth DC power supply for the drive controller and the digital processor.

[0017] The digital processor acquires the voltage and current parameters of the third DC power supply under the power supply condition of the fourth DC power supply; the digital processor collects the voltage and current parameters of the reference power supply output reference power supply; the digital processor generates a second control signal based on the voltage and current parameters of the third DC power supply and the voltage and current parameters of the reference power supply output reference power supply.

[0018] The drive controller acquires the second control signal under the power supply condition of the fourth DC power supply, generates a second PWM drive signal according to the second control signal, and drives the high-voltage DC-DC power supply through the second PWM drive signal to adjust the current and voltage parameters of the third DC power supply.

[0019] Based on the above-described digital power management method, the present invention also provides a digital power management device.

[0020] A digital power management device includes a memory and a processor. The memory stores a computer program, which, when executed by the processor, implements the digital power management method as described above.

[0021] The beneficial effects of this invention are as follows: In the digital power management system, method, and apparatus of this invention, the high-voltage linear auxiliary power supply supplies electrical energy to the load, high-voltage DC-DC power supply, drive controller, and digital processor after linear voltage regulation. When the high-voltage DC-DC power supply is working, the high-voltage linear auxiliary power supply stops supplying electrical energy, and the high-voltage DC-DC power supply mainly provides electrical energy to the load, drive controller, digital processor, etc. This can protect external energy from energy supply conflicts under the condition of realizing multiple energy supply, and improve the stability of energy supply. Attached Figure Description

[0022] Figure 1 This is a structural block diagram of a digital power management system according to the present invention;

[0023] Figure 2 This is a flowchart of a digital power management method according to the present invention. Detailed Implementation

[0024] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0025] like Figure 1 As shown, a digital power management system includes a high-voltage linear auxiliary power supply, a high-voltage DC-DC power supply, a drive controller, a digital processor, and a reference power supply.

[0026] The high-voltage linear auxiliary power supply is used to connect to three-phase AC power and convert the connected three-phase AC power to DC power, and to provide the DC power to the high-voltage DC-DC power supply in non-operating mode; it is also used to control the high-voltage DC-DC power supply to enter non-operating mode when entering operating mode; and it is also used to perform linear voltage regulation on the DC power in operating mode to obtain a first DC power supply for powering the load and a second DC power supply for powering the drive controller and the digital processor.

[0027] The digital processor is configured to acquire the voltage and current parameters of the first DC power supply under the condition of the second DC power supply; to acquire the voltage and current parameters of the reference power supply output; and to generate a first control signal based on the voltage and current parameters of the first DC power supply and the voltage and current parameters of the reference power supply output.

[0028] The drive controller is configured to acquire the first control signal under the power supply condition of the second DC power supply, generate a first PWM drive signal according to the first control signal, and drive the high-voltage linear auxiliary power supply through the first PWM drive signal to adjust the current parameters and voltage parameters of the first DC power supply.

[0029] The high-voltage DC-DC power supply is used to control the high-voltage linear auxiliary power supply to enter the non-working mode when entering the working mode; it is also used to step down the DC power in the working mode to obtain a third DC power supply for the load and a fourth DC power supply for the drive controller and the digital processor.

[0030] The digital processor is further configured to acquire the voltage and current parameters of the third DC power supply under the power supply condition of the fourth DC power supply; to acquire the voltage and current parameters of the reference power supply output reference power; and to generate a second control signal based on the voltage and current parameters of the third DC power supply and the voltage and current parameters of the reference power supply output reference power.

[0031] The drive controller is further configured to acquire the second control signal under the power supply condition of the fourth DC power supply, generate a second PWM drive signal according to the second control signal, and drive the high-voltage DC-DC power supply through the second PWM drive signal to adjust the current parameters and voltage parameters of the third DC power supply.

[0032] In this specific embodiment: the digital power management system of the present invention further includes a filter; the high-voltage DC-DC power supply is also used to output a fifth DC power;

[0033] The filter is used to load the carrier signal onto the fifth DC power supply, so that the high-voltage DC-DC power supply can provide the fifth DC power supply to the outside while simultaneously achieving filtered transmission communication.

[0034] The input terminal of the filter circuit is connected to a high-voltage DC-DC power supply. The filter circuit can be connected to external equipment for carrier communication. The carrier signal is input to the filter circuit. The filter circuit is mainly used for conducted interference isolation in low-voltage circuit carrier communication, and provides energy supply while filtering and transmitting communication.

[0035] In this specific embodiment: the digital power management system of the present invention further includes a load balancing collector, wherein multiple loads are provided;

[0036] The load balancer is used to collect power supply data of multiple loads, perform load balancing processing on the power supply data of multiple loads to obtain a load balancing signal, and transmit the load balancing signal to the digital processor.

[0037] The digital processor is specifically configured to generate a first control signal based on the load balancing signal, the voltage and current parameters of the first DC power supply, and the voltage and current parameters of the reference power supply output reference power supply; and is also specifically configured to generate a second control signal based on the load balancing signal, the voltage and current parameters of the third DC power supply, and the voltage and current parameters of the reference power supply output reference power supply.

[0038] Multiple loads are connected to the load balancer to achieve load balancing scheduling when multiple power supplies are connected, which can avoid abnormalities or interruptions in multiple power supplies.

[0039] In this specific embodiment: the high-voltage linear auxiliary power supply includes a rectifier module and a high-voltage linear regulator module;

[0040] The rectifier module is used to connect to three-phase AC power, convert the connected three-phase AC power to DC power, and provide the DC power to the high-voltage DC-DC power supply in non-working mode.

[0041] The high-voltage linear regulator module is used to control the high-voltage DC-DC power supply to enter a non-working mode when entering the working mode; it is also used to perform linear regulation of the DC power in the working mode to obtain a first DC power supply for the load and a second DC power supply for the drive controller and the digital processor.

[0042] In this specific embodiment: the rectifier module is specifically a full-bridge rectifier circuit.

[0043] The input terminal of the rectifier module is connected to a three-phase AC power supply. After the AC power enters the frequency conversion system of the rectifier module, it will be converted into DC power to provide a unified DC power supply.

[0044] In this specific embodiment: the high-voltage linear regulator module is specifically a high-voltage linear regulator circuit with an adjustment tube, and the high-voltage linear regulator module performs linear voltage regulation by controlling the voltage difference of the adjustment tube.

[0045] The high-voltage linear regulator module is connected to the rectifier module at its input terminal. It takes in DC power and outputs a stable voltage, serving as a power supply for external loads at the output terminal. It is basically composed of an input circuit, an output circuit, and a regulating transistor circuit. The high-voltage linear regulator module has a smaller voltage drop and lower power consumption. By controlling the voltage drop of the regulating transistor through the output circuit, the output voltage is kept basically constant, thus achieving the purpose of voltage regulation.

[0046] In this specific embodiment: the high-voltage DC-DC power supply is a Buck-type DC-DC converter with digital control algorithm.

[0047] High-voltage DC-DC power supplies primarily employ digital control algorithms in Buck-type DC-DC converters, also known as step-down circuits, to achieve a lower output voltage than input voltage and provide protection. When the high-voltage DC-DC power supply is operating, the high-voltage linear regulator module ceases supplying power to external loads. The high-voltage DC-DC power supply then powers the drive controller, digital processor, and load, forming a closed-loop circuit that solves the problem of relying on a single energy source while preventing energy supply conflicts.

[0048] In this invention, the reference power supply serves as a standard for measuring parameters such as voltage and current, used to determine the levels of current and voltage parameters supplied to the load by the digital processor. The digital processor collects the voltage and current parameters of the load supply (first DC or third DC) from the power supply (high-voltage linear auxiliary power supply or high-voltage DC-DC power supply), measures these parameters against the reference power supply, converts them into digital signals via a digital chip, and transmits them to the drive controller. The drive controller converts the digital signals into PWM signals and transmits them to the power supply. The digital processor then collects the power supply output values, thus forming a loop for compensation, pulse width modulation signal generation, and drive processing.

[0049] The drive controller mainly uses a PWM conversion chip to convert the control signal of the digital processor into a PWM drive signal. The PWM conversion chip is highly efficient and is very suitable for various battery-powered portable digital devices.

[0050] In addition, all components in the digital power management system of this invention are made of ultra-high temperature grade materials, and the PCB substrate is made of aerospace-grade high-frequency ceramics, which meets the working conditions of harsh environments with ultra-high temperature, high pressure and vibration, thereby avoiding demagnetization and magnetic saturation of digital power components due to high temperature damaging their own structure or magnetic domain orientation consistency.

[0051] Based on the above-described digital power management system, the present invention also provides a digital power management method.

[0052] like Figure 2 As shown, a digital power management method, implemented using the digital power management system described above, includes the following steps:

[0053] A high-voltage linear auxiliary power supply is connected to three-phase AC power and performs AC-DC conversion on the connected three-phase AC power to obtain DC power. In non-operating mode, the DC power is provided to the high-voltage DC-DC power supply. When the high-voltage linear auxiliary power supply enters the operating mode, it controls the high-voltage DC-DC power supply to enter the non-operating mode. In the operating mode, the high-voltage linear auxiliary power supply performs linear voltage regulation on the DC power to obtain a first DC power supply for the load and a second DC power supply for the drive controller and digital processor.

[0054] Under the power supply condition of the second DC power, the digital processor acquires the voltage and current parameters of the first DC power; the digital processor collects the voltage and current parameters of the reference power output from the reference power supply; the digital processor generates a first control signal based on the voltage and current parameters of the first DC power and the voltage and current parameters of the reference power output from the reference power supply.

[0055] Under the power supply condition of the second DC power, the drive controller acquires the first control signal, generates a first PWM drive signal according to the first control signal, and drives the high-voltage linear auxiliary power supply through the first PWM drive signal to adjust the current and voltage parameters of the first DC power.

[0056] When the high-voltage DC-DC power supply enters the working mode, it controls the high-voltage linear auxiliary power supply to enter the non-working mode; in the working mode, the high-voltage DC-DC power supply performs voltage reduction processing on the DC power to obtain a third DC power supply for the load and a fourth DC power supply for the drive controller and the digital processor.

[0057] The digital processor acquires the voltage and current parameters of the third DC power supply under the power supply condition of the fourth DC power supply; the digital processor collects the voltage and current parameters of the reference power supply output reference power supply; the digital processor generates a second control signal based on the voltage and current parameters of the third DC power supply and the voltage and current parameters of the reference power supply output reference power supply.

[0058] The drive controller acquires the second control signal under the power supply condition of the fourth DC power supply, generates a second PWM drive signal according to the second control signal, and drives the high-voltage DC-DC power supply through the second PWM drive signal to adjust the current and voltage parameters of the third DC power supply.

[0059] In the digital power management method of the present invention, the details of each step are as described in the digital power management system of the present invention, and will not be repeated here.

[0060] Based on the above-described digital power management method, the present invention also provides a digital power management device.

[0061] A digital power management device includes a memory and a processor. The memory stores a computer program, which, when executed by the processor, implements the digital power management method as described above.

[0062] In the digital power management system, method, and apparatus of this invention, a high-voltage linear auxiliary power supply provides electrical energy to the load, high-voltage DC-DC power supply, drive controller, and digital processor after linear voltage regulation. When the high-voltage DC-DC power supply is working, the high-voltage linear auxiliary power supply stops providing electrical energy, and the high-voltage DC-DC power supply mainly provides electrical energy to the load, drive controller, digital processor, etc. This can protect external energy from energy supply conflicts under the condition of realizing multiple energy supply, and improve the stability of energy supply.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A digital power management system, characterized in that: It includes a high-voltage linear auxiliary power supply, a high-voltage DC-DC power supply, a drive controller, a digital processor, and a reference power supply; The high-voltage linear auxiliary power supply is used to connect to three-phase AC power and convert the connected three-phase AC power to DC power, and to provide the DC power to the high-voltage DC-DC power supply in non-operating mode; it is also used to control the high-voltage DC-DC power supply to enter non-operating mode when entering operating mode; and it is also used to perform linear voltage regulation on the DC power in operating mode to obtain a first DC power supply for powering the load and a second DC power supply for powering the drive controller and the digital processor. The digital processor is configured to acquire the voltage and current parameters of the first DC power supply under the condition of the second DC power supply; to acquire the voltage and current parameters of the reference power supply output; and to generate a first control signal based on the voltage and current parameters of the first DC power supply and the voltage and current parameters of the reference power supply output. The drive controller is configured to acquire the first control signal under the power supply condition of the second DC power supply, generate a first PWM drive signal according to the first control signal, and drive the high-voltage linear auxiliary power supply through the first PWM drive signal to adjust the current parameters and voltage parameters of the first DC power supply. The high-voltage DC-DC power supply is used to control the high-voltage linear auxiliary power supply to enter the non-working mode when entering the working mode; it is also used to step down the DC power in the working mode to obtain a third DC power supply for the load and a fourth DC power supply for the drive controller and the digital processor. The digital processor is further configured to acquire the voltage and current parameters of the third DC power supply under the power supply condition of the fourth DC power supply; to acquire the voltage and current parameters of the reference power supply output reference power; and to generate a second control signal based on the voltage and current parameters of the third DC power supply and the voltage and current parameters of the reference power supply output reference power. The drive controller is further configured to acquire the second control signal under the power supply condition of the fourth DC power supply, generate a second PWM drive signal according to the second control signal, and drive the high-voltage DC-DC power supply through the second PWM drive signal to adjust the current parameters and voltage parameters of the third DC power supply.

2. The digital power management system according to claim 1, characterized in that: It also includes a filter; the high-voltage DC-DC power supply is also used to output a fifth DC power. The filter is used to load the carrier signal onto the fifth DC power supply, so that the high-voltage DC-DC power supply can provide the fifth DC power supply to the outside while simultaneously achieving filtered transmission communication.

3. The digital power management system according to claim 1, characterized in that: It also includes a load balancer, of which multiple loads are provided; The load balancer is used to collect power supply data of multiple loads, perform load balancing processing on the power supply data of multiple loads to obtain a load balancing signal, and transmit the load balancing signal to the digital processor. The digital processor is specifically configured to generate a first control signal based on the load balancing signal, the voltage and current parameters of the first DC power supply, and the voltage and current parameters of the reference power supply output reference power supply; and is also specifically configured to generate a second control signal based on the load balancing signal, the voltage and current parameters of the third DC power supply, and the voltage and current parameters of the reference power supply output reference power supply.

4. The digital power management system according to any one of claims 1 to 3, characterized in that: The high-voltage linear auxiliary power supply includes a rectifier module and a high-voltage linear regulator module; The rectifier module is used to connect to three-phase AC power, convert the connected three-phase AC power to DC power, and provide the DC power to the high-voltage DC-DC power supply in non-working mode. The high-voltage linear regulator module is used to control the high-voltage DC-DC power supply to enter a non-working mode when entering the working mode; it is also used to perform linear regulation of the DC power in the working mode to obtain a first DC power supply for the load and a second DC power supply for the drive controller and the digital processor.

5. The digital power management system according to claim 4, characterized in that: The rectifier module is specifically a full-bridge rectifier circuit.

6. The digital power management system according to claim 4, characterized in that: The high-voltage linear regulator module is specifically a high-voltage linear regulator circuit with an adjustment tube. The high-voltage linear regulator module performs linear voltage regulation by controlling the voltage difference of the adjustment tube.

7. The digital power management system according to any one of claims 1 to 3, characterized in that: The high-voltage DC-DC power supply is specifically a Buck-type DC-DC converter with digital control algorithm.

8. A digital power management method, characterized in that: Implemented using a digital power management system as described in any one of claims 1 to 7, the system includes the following steps: A high-voltage linear auxiliary power supply is connected to three-phase AC power and performs AC-DC conversion on the connected three-phase AC power to obtain DC power. In non-operating mode, the DC power is provided to the high-voltage DC-DC power supply. When the high-voltage linear auxiliary power supply enters the operating mode, it controls the high-voltage DC-DC power supply to enter the non-operating mode. In the operating mode, the high-voltage linear auxiliary power supply performs linear voltage regulation on the DC power to obtain a first DC power supply for the load and a second DC power supply for the drive controller and digital processor. Under the power supply condition of the second DC power, the digital processor acquires the voltage and current parameters of the first DC power; the digital processor also acquires the voltage and current parameters of the reference power output from the reference power supply. The digital processor generates a first control signal based on the voltage and current parameters of the first DC power supply and the voltage and current parameters of the reference power supply output. Under the power supply condition of the second DC power, the drive controller acquires the first control signal, generates a first PWM drive signal according to the first control signal, and drives the high-voltage linear auxiliary power supply through the first PWM drive signal to adjust the current and voltage parameters of the first DC power. When the high-voltage DC-DC power supply enters the working mode, it controls the high-voltage linear auxiliary power supply to enter the non-working mode; in the working mode, the high-voltage DC-DC power supply performs voltage reduction processing on the DC power to obtain a third DC power supply for the load and a fourth DC power supply for the drive controller and the digital processor. The digital processor acquires the voltage and current parameters of the third DC power supply under the power supply condition of the fourth DC power supply; the digital processor also acquires the voltage and current parameters of the reference power supply outputting the reference power supply. The digital processor generates a second control signal based on the voltage and current parameters of the third DC power supply and the voltage and current parameters of the reference power supply output reference power supply. The drive controller acquires the second control signal under the power supply condition of the fourth DC power supply, generates a second PWM drive signal according to the second control signal, and drives the high-voltage DC-DC power supply through the second PWM drive signal to adjust the current and voltage parameters of the third DC power supply.

9. A digital power management device, characterized in that: It includes a memory and a processor, wherein the memory stores a computer program, which, when executed by the processor, implements the digital power management method as described in claim 8.

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