Drive control method, drive control circuit, and electronic device

Abstract

The application discloses a driving control method, a driving control circuit and electronic equipment. The driving control method comprises the following steps: obtaining a power supply output voltage, an energy storage characteristic voltage and an energy storage characteristic current in an energy storage compensation circuit; performing first filtering processing on the power supply output voltage to obtain a target output voltage; obtaining a feedback adjustment output value by using the target output voltage and the power supply output voltage; obtaining an energy storage adjustment output value by using the target energy storage voltage and the energy storage characteristic voltage; obtaining a voltage adjustment output value by using the feedback adjustment output value and the energy storage adjustment output value; obtaining a current adjustment output value by using the energy storage characteristic current and the voltage adjustment output value; generating a driving control signal by using the current adjustment output value; and sending the driving control signal to the energy storage compensation circuit to adjust the power supply output voltage. In the foregoing manner, the driving control method of the application has a shorter delay in dynamically compensating the power supply output of the energy storage compensation circuit, a faster response and a simpler structure.

Description

Technical Field

[0001] This application relates to the field of circuit control technology, and in particular to a drive control method, a drive control circuit, and an electronic device. Background Technology

[0002] Today, with the increasing prevalence of electronic devices, the requirements for their power supply performance are becoming increasingly stringent. This is especially true in power supply scenarios with large load fluctuations, such as AI (Artificial Intelligence) servers and data centers. To ensure power supply stability and reliability, power supply units and energy storage devices are typically used in tandem to supply power to the load. The energy storage device compensates for the load conditions of the power supply unit's output bus in real time, thereby reducing load fluctuations caused by dynamic loads on the upstream power supply system. Specifically, when the power supply unit is under light load, the energy storage device enters charging mode to support the power supply unit; when the power supply unit is under heavy load, the energy storage device enters discharging mode to reduce the load on the power supply unit, thus ensuring a balanced load on the power supply unit over a period of time.

[0003] However, in related technologies, energy storage devices are configured to receive current-sharing bus signals from power supply units to compensate for the load conditions of the power supply unit's output bus. The power supply unit's reception and response to the current-sharing bus signal has a certain delay, leading to untimely input and output compensation by the energy storage device and lag in peak dynamic suppression. Furthermore, since the energy storage device and power supply unit transmit the current-sharing bus signal via a signal line connection, there is a possibility of signal line circuit damage or disconnection. Once the current-sharing bus signal is lost, the energy storage device will completely lose its compensation capability, resulting in poor design reliability. Moreover, different manufacturers have inconsistent calibration of the current-sharing bus signal for power supply units, or even lack the detection and output configuration for the current-sharing bus signal, further limiting the functionality of the energy storage device or rendering it without compensation capabilities. Summary of the Invention

[0004] The main technical problem addressed in this application is to provide a drive control method, drive control circuit, and electronic device that can solve the problems of untimely input and output compensation, lag in dynamic peak suppression, high risk of loss of compensation capability, poor design reliability, limited compensation function, and narrow application range in the compensation of energy storage devices under load conditions of power supply output bus in related technologies.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution: A drive control method is provided for driving control of an energy storage compensation circuit. The drive control method includes: acquiring the power supply output voltage, energy storage characteristic voltage, and energy storage characteristic current in the energy storage compensation circuit; performing a first filtering process on the power supply output voltage to obtain a target output voltage; obtaining a feedback regulation output value using the target output voltage and the power supply output voltage; obtaining an energy storage regulation output value using the target energy storage voltage and the energy storage characteristic voltage; obtaining a voltage regulation output value using the feedback regulation output value and the energy storage regulation output value; obtaining a current regulation output value using the energy storage characteristic current and the voltage regulation output value; generating a drive control signal using the current regulation output value; and sending the drive control signal to the energy storage compensation circuit to trigger the energy storage compensation circuit to change its switching state, thereby regulating the power supply output voltage.

[0006] The step of obtaining the feedback regulation output value using the target output voltage and the power supply output voltage includes: obtaining a reference regulation value using the target output voltage and the power supply output voltage; detecting whether the reference regulation value is within a first threshold range; and if the reference regulation value is not within the first threshold range, performing a first regulation operation on the reference regulation value to obtain the feedback regulation output value.

[0007] The step of obtaining the reference adjustment value using the target output voltage and the supply output voltage includes: subtracting the supply output voltage from the target output voltage to obtain a first error value; performing a second filtering process on the energy storage characteristic current to obtain a charge-discharge balance current; multiplying the charge-discharge balance current by a first adjustment coefficient to obtain a charge-discharge balance adjustment value; wherein the first adjustment coefficient is positively correlated with the energy storage characteristic voltage; and subtracting the charge-discharge balance adjustment value from the first error value to obtain the reference adjustment value.

[0008] The step of obtaining the reference adjustment value using the target output voltage and the supply output voltage includes: subtracting the supply output voltage from the target output voltage to obtain a first error value; detecting whether the energy storage characteristic voltage is within a second threshold range; if the energy storage characteristic voltage is not within the second threshold range, multiplying the energy storage characteristic voltage by a second adjustment coefficient to obtain an energy storage compensation value; wherein the minimum difference between the energy storage characteristic voltage and the boundary value of the second threshold range is positively correlated with the second adjustment coefficient; adding the energy storage compensation value to the first error value to obtain the reference adjustment value; if the energy storage characteristic voltage is within the second threshold range, setting the energy storage compensation value to 0.

[0009] The step of performing a first adjustment operation on the reference adjustment value to obtain the feedback adjustment output value includes: multiplying the energy storage characteristic current by a third adjustment coefficient to obtain a droop current sharing adjustment value; wherein the third adjustment coefficient is positively correlated with the energy storage characteristic voltage; subtracting the droop current sharing adjustment value from the reference adjustment value to obtain a first compensation adjustment value; and performing a first adjustment operation on the first compensation adjustment value to obtain the feedback adjustment output value.

[0010] The step of performing a first adjustment operation on the reference adjustment value to obtain a feedback adjustment output value includes: acquiring a current sharing bus signal sent by the power supply circuit; obtaining a current sharing compensation voltage value using the current sharing bus signal; adding the current sharing compensation voltage value to the reference adjustment value to obtain a second compensation adjustment value; and performing a first adjustment operation on the second compensation adjustment value to obtain a feedback adjustment output value.

[0011] The step of obtaining the voltage regulation output value using the feedback regulation output value and the energy storage regulation output value includes: detecting whether the energy storage characteristic voltage is within the third threshold range; if the energy storage characteristic voltage is within the third threshold range, setting the voltage regulation output value equal to the energy storage regulation output value; if the energy storage characteristic voltage is not within the third threshold range, adding the feedback regulation output value to the energy storage regulation output value to obtain the voltage regulation output value, or setting the voltage regulation output value equal to the feedback regulation output value.

[0012] The energy storage compensation circuit includes a set number of voltage conversion sub-circuits. The step of obtaining the current regulation output value using the energy storage characteristic current and the voltage regulation output value includes: performing a second adjustment operation on a second error value between the energy storage characteristic current and the voltage regulation output value to obtain a reference current regulation value; wherein, the energy storage characteristic current is the sum of the inductor currents in each voltage conversion sub-circuit; dividing the energy storage characteristic current by a set number to obtain the average inductor current; wherein, the set number is a positive integer greater than 1; subtracting the average inductor current from each inductor current to obtain each current sharing compensation value; and adding each current sharing compensation value to the reference current regulation value to obtain each current regulation output value.

[0013] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide a drive control circuit, wherein the drive control circuit is coupled to the energy storage compensation circuit; wherein the drive control circuit uses the drive control method described in any of the above claims to drive the energy storage compensation circuit.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide an electronic device, wherein the electronic device includes a housing and a drive control circuit connected to the housing; wherein the drive control circuit is the drive control circuit as described above.

[0015] The beneficial effects of this application are as follows: Unlike existing technologies, the drive control method provided in this application obtains the power supply output voltage, energy storage characteristic voltage, and energy storage characteristic current in the energy storage compensation circuit. It then performs a first filtering process on the power supply output voltage to obtain the target output voltage. Furthermore, it uses the target output voltage and the power supply output voltage to obtain a feedback-regulated output value. Finally, it uses the target energy storage voltage and the energy storage characteristic voltage to obtain an energy storage regulated output value. It uses the feedback-regulated output value and the energy storage regulated output value to obtain a voltage regulated output value. Finally, it uses the energy storage characteristic current and the voltage regulated output value to obtain a current regulated output value. The output value generates a drive control signal, which is sent to the energy storage compensation circuit to adjust the power supply output voltage. This allows for direct response to the power supply output voltage of the energy storage compensation circuit to achieve dynamic load compensation. There is no need to detect the current sharing bus signal and signal line transmission, resulting in shorter compensation delay, faster response, and better dynamic compensation for spikes. Furthermore, there is no need to configure a current sharing bus signal sampling and detection circuit, making the circuit structure simpler. It also avoids the loss of compensation capability due to the loss or mismatch of the current sharing bus signal, resulting in high design reliability, unrestricted compensation function, and a wide range of applications. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is a flowchart illustrating the first embodiment of the drive control method of this application;

[0018] Figure 2 This is a schematic diagram of the first embodiment of the drive control circuit and energy storage compensation circuit of this application;

[0019] Figure 3 yes Figure 1 A flowchart illustrating an embodiment of S16;

[0020] Figure 4 This is a schematic diagram of the second embodiment of the drive control circuit and energy storage compensation circuit of this application;

[0021] Figure 5 yes Figure 4 A logic framework diagram of an embodiment of signal processing by a drive control circuit;

[0022] Figure 6 yes Figure 1 A flowchart illustrating an embodiment of S13;

[0023] Figure 7 yes Figure 4 A logic framework diagram of another embodiment of signal processing by the drive control circuit;

[0024] Figure 8 yes Figure 6 A flowchart illustrating an embodiment of S131;

[0025] Figure 9 yes Figure 6 A flowchart illustrating another embodiment of S131;

[0026] Figure 10 yes Figure 6 A flowchart illustrating an embodiment of S134;

[0027] Figure 11 yes Figure 6 A flowchart illustrating another embodiment of S134;

[0028] Figure 12 yes Figure 1 A flowchart illustrating an embodiment of S15;

[0029] Figure 13 This is a schematic diagram of one embodiment of the electronic device of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0032] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0033] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 This is a flowchart illustrating the first embodiment of the drive control method of this application. Figure 2 This is a schematic diagram of the first embodiment of the drive control circuit and energy storage compensation circuit of this application. Specifically, it may include the following steps:

[0035] S11: Obtain the power supply output voltage, energy storage characteristic voltage, and energy storage characteristic current in the energy storage compensation circuit.

[0036] It is understood that the drive control method in this embodiment is specifically applied to, for example... Figure 2 The first energy storage compensation circuit 30 shown is driven and controlled; wherein the first drive control circuit 20 is coupled to the first energy storage compensation circuit 30 to drive and control the first energy storage compensation circuit 30 using any of the drive control methods described herein.

[0037] It is worth noting that the first energy storage compensation circuit 30 may specifically include a phase-coupled energy storage sub-circuit and a voltage conversion sub-circuit; wherein, the energy storage sub-circuit may include any reasonable one or more of batteries, capacitors, supercapacitors, etc.; the voltage conversion sub-circuit may specifically be a multi-phase interleaved half-bridge buck-boost circuit, a multi-phase interleaved full-bridge buck-boost circuit, or any other reasonable circuit topology, and this embodiment does not limit it in this way.

[0038] In some embodiments, the first drive control circuit 20 may specifically include any reasonable circuit unit with signal processing function, such as a control chip, a DSP (Digital Signal Processing) chip, an MCU (Micro Controller Unit) circuit, a CPU (Central Processing Unit), a microcontroller, a field-programmable gate array, a programmable logic device, discrete gate or transistor logic devices, or discrete hardware. This application does not limit this.

[0039] Furthermore, the term "coupled" in this document refers to any direct or indirect connection. Therefore, if the document describes a first circuit coupled to a second circuit, it means that the first circuit can be directly connected to the second circuit via electrical connection or signal connection methods such as wireless transmission or optical transmission, or indirectly connected to the second circuit via other circuits or connection methods via electrical connection or signal connection.

[0040] Specifically, the first drive control circuit 20 periodically or in real time samples the power supply output voltage, energy storage characteristic voltage, and energy storage characteristic current from the first energy storage compensation circuit 30 at set intervals.

[0041] It is worth noting that the power supply output voltage can be understood as the voltage on the power supply output bus. The first energy storage compensation circuit 30 and the external power supply device are both coupled to the power supply output bus so as to work together to supply power to the load through the power supply output bus.

[0042] In addition, the energy storage characteristic voltage and energy storage characteristic current can be understood as the output voltage of the energy storage sub-circuit inside the first energy storage compensation circuit 30; the energy storage characteristic current is the sum of the input currents of each voltage conversion sub-circuit.

[0043] S12: Perform the first filtering process on the power supply output voltage to obtain the target output voltage.

[0044] The target output voltage is obtained by performing a first filtering process on the power supply output voltage using any reasonable filtering method such as low-pass filtering or sliding window filtering.

[0045] It is worth noting that the core function of a low-pass filter is to allow low-frequency signals to pass through while attenuating or blocking high-frequency signals.

[0046] In addition, sliding window filtering is a commonly used digital signal processing technique that suppresses noise and smooths signals by performing statistical operations (such as mean, median, etc.) on the data within a fixed-length window. Its core principle is to maintain a data queue of fixed length. Each time new data arrives, the oldest data at the head of the queue is removed and the new data is inserted, and then the data within the window is processed.

[0047] S13: The output value is adjusted by feedback using the target output voltage and the supply output voltage.

[0048] This application does not limit the use of preset calculation functions or rule programs, such as one or more of the PI (Proportional Integral) control algorithm, PID (Proportional Integral Derivative) control algorithm, difference algorithm, amplitude limiting algorithm, and feedback compensation algorithm corresponding to the voltage loop in its internal controller, to calculate and process the target output voltage obtained by filtering and the power supply output voltage to obtain the feedback regulation output value.

[0049] S14: Obtain the energy storage regulation output value using the target energy storage voltage and the energy storage characteristic voltage.

[0050] Understandably, the energy storage capacity of the energy storage sub-circuit in the first energy storage compensation circuit 30 is usually relatively stable, so that it can perform signal monitoring and data fitting to obtain the target energy storage voltage according to the dynamic load compensation of the power supply device in the actual application scenario. That is, the energy storage sub-circuit is designed to adjust to a target reference voltage close to the target voltage.

[0051] Furthermore, the target energy storage voltage and the energy storage characteristic voltage are processed by one or more of the following methods: difference algorithm, proportional-integral algorithm, proportional-integral-differential algorithm, and amplitude limiting algorithm, to obtain the energy storage regulation output value. This application does not limit the specific method used in this regard.

[0052] S15: The voltage regulation output value is obtained by using feedback regulation output value and energy storage regulation output value.

[0053] The voltage regulation output value can be obtained by superimposing the feedback regulation output value with the energy storage regulation output value, or by selecting one of the feedback regulation output value and the energy storage regulation output value in response to a specific operating state of the first energy storage compensation circuit 30, or by using any other reasonable preset operation function or rule program to perform calculations on the feedback regulation output value and the energy storage regulation output value. This application does not limit this.

[0054] S16: Obtain the current regulation output value by using the energy storage characteristic current and voltage regulation output value.

[0055] Furthermore, the current regulation output value is obtained by using one or more of the following preset operation functions or rule programs: difference algorithm, proportional-integral algorithm, proportional-integral-differential algorithm, amplitude limiting algorithm, and mean error algorithm. This application does not limit the current regulation output value.

[0056] S17: Use current to regulate the output value to generate a drive control signal.

[0057] The drive control signal is obtained by modulating the currently acquired current regulation output value using a preset signal modulation rule or operation function, and the duty cycle of the drive control signal is dynamically adjusted in response to changes in the current regulation output value.

[0058] In some embodiments, the drive control signal may be one or more of any reasonable control signal such as PWM (Pulse Width Modulation) signal or PFM (Pulse Frequency Modulation) signal, and this application does not limit it.

[0059] S18: Send the drive control signal to the energy storage compensation circuit to trigger the energy storage compensation circuit to change the switching state, thereby regulating the power supply output voltage.

[0060] The drive control signal in dynamic adjustment is sent to the first energy storage compensation circuit 30 to trigger the first energy storage compensation circuit 30 to change the switching state in real time, thereby dynamically adjusting the power supply output voltage of the first energy storage compensation circuit 30.

[0061] The above solution achieves dynamic load compensation by directly responding to the power supply output voltage of the first energy storage compensation circuit 30. It eliminates the need to detect the current sharing bus signal and signal line transmission, resulting in shorter compensation delay, faster dynamic response, better dynamic compensation for spikes, and significant dynamic suppression of spikes. Furthermore, it eliminates the need for additional current sharing bus signal sampling and detection circuits and transmission lines, making the circuit structure simpler and more reliable. The control signal source is simple and reliable, avoiding the loss of compensation capability due to the loss or incompatibility of the current sharing bus signal. The design has high reliability, strong system compatibility, and only requires detecting the bus voltage to complete the compensation output. The compensation function is unrestricted and has a wide range of applications.

[0062] In addition, through external voltage stabilization and internal current environmental dynamic response and safety, it can quickly recover under load changes and input fluctuations, and has strong anti-interference ability. By integrating output voltage feedback, energy storage unit status (voltage / current) monitoring and dynamic adjustment, it achieves high-precision and high-stability control of power supply output voltage.

[0063] Please continue reading. Figures 3-5 ,in, Figure 3 yes Figure 1 A flowchart illustrating an embodiment of S16 is shown below. Figure 4 This is a schematic diagram of the second embodiment of the drive control circuit and energy storage compensation circuit of this application. Figure 5 yes Figure 4 A logic framework diagram of an embodiment of signal processing by a drive control circuit. In one embodiment, the drive control method of this application, in addition to the above-described S11-S18, further includes some more specific steps. Specifically, S16 may further include the following steps:

[0064] S161: Perform a second adjustment operation on the second error value between the energy storage characteristic current and the voltage regulation output value to obtain the reference current regulation value.

[0065] It is understood that the drive control method in this embodiment may specifically be a second drive control circuit 40 such as... Figure 4 The second energy storage compensation circuit 50 shown implements drive control to cooperate with the external power supply circuit and supplies power to the load circuit 62 via the power output bus 61. The second energy storage compensation circuit 50 includes mutually coupled energy storage sub-circuits 52 and at least two voltage conversion sub-circuits 51. The energy storage sub-circuit 52 includes at least two supercapacitors Cs connected in parallel and a bridging capacitor ECap. The voltage conversion sub-circuit 51 includes an upper-side switching transistor Qs, a lower-side switching transistor Qx, and an energy storage inductor Lx.

[0066] In this configuration, the first terminal of each supercapacitor Cs is interconnected and coupled to the first terminal of each energy storage inductor Lx and the first terminal of the bridging capacitor ECap. The second terminal of each supercapacitor Cs is interconnected and coupled to the second terminal of each lower-side switching transistor Qx, and is used for coupling with the power supply output bus 61. The second terminal of each energy storage inductor Lx is coupled to the second terminal of its corresponding upper-side switching transistor Qs and the third terminal of the lower-side switching transistor Qx. The third terminal of each upper-side switching transistor Qs is coupled to the second terminal of the bridging capacitor ECap. It is used to couple with the power output bus 61; the first terminal of each upper switch Qs and the first terminal of each lower switch Qx are coupled to the second drive control circuit 40, so as to be controlled by the drive control signal sent by the second drive control circuit 40 to turn on or off the connection between its second terminal and the third terminal; the power output bus 61 is coupled to the load circuit 62 and the power supply circuit 63, and the power supply circuit 63 and the second energy storage compensation circuit 50 specifically supply power to the load circuit 62 through the power output bus 61.

[0067] In some embodiments, the upper switch Qs and the lower switch Qx can be MOSFET (Metal-Oxide Semiconductor Field Effect Transistor), transistor, thin-film transistor, field-effect transistor, or any other reasonable switch, and this application does not limit them.

[0068] In other embodiments, the voltage conversion sub-circuit 51 may be a multiphase interleaved half-bridge buck-boost circuit, a multiphase interleaved full-bridge buck-boost circuit, or any other reasonable circuit topology. This embodiment does not limit this.

[0069] It is worth noting that in typical load power supply scenarios, only the power supply circuit 63 utilizes the mains power input from the grid to control the voltage of the power supply output bus 61 to supply power to the load circuit 62. The strength of the load on this power supply output bus 61 will cause fluctuations in the grid input current. When the load fluctuations are drastic and rapid, the input current of the entire system becomes severely distorted. Especially when the upstream input distribution network is weak and the load power is excessive, strong pulling can cause serious consequences.

[0070] In some embodiments, the second energy storage compensation circuit 50 is directly connected to the power supply output bus 61 and shares the load circuit 62 with the power supply circuit 63, thereby reducing grid input distortion. The second energy storage compensation circuit 50 includes at least two voltage conversion sub-circuits 51 connected in parallel, and the energy storage sub-circuit 52 includes at least two supercapacitors Cs or super lithium capacitors connected in parallel; the basic topology of each voltage conversion sub-circuit 51 is a single-bridge-arm bidirectional buck-boost circuit, and the three-phase inductors inside the voltage conversion sub-circuit 51 are interleaved and connected in parallel to improve the overall power.

[0071] Specifically, when the load increases, i.e., the output power required by the load circuit 62 increases, the voltage on the power supply output bus 61, i.e., the power supply output voltage Vbus, drops. The second energy storage compensation circuit 50 stores and discharges energy, outputting current to the power supply output bus 61, and shares the increased load with the power supply circuit 63. When the load decreases, the power supply output voltage Vbus rises, and the second energy storage compensation circuit 50 absorbs current, i.e., receives the input current from the power supply output bus 61 and supplies it to each supercapacitor Cs or each super lithium energy storage, which is equivalent to increasing the load of the power supply circuit 63. This ensures that the load fluctuation of the power supply circuit 63 is small for a period of time, thereby reducing the harmonic content of the grid-side input current.

[0072] In some embodiments, the second drive control circuit 40 further includes a signal sampling sub-circuit 41 and a signal modulation sub-circuit 42. The signal sampling sub-circuit 41 is coupled to the supercapacitor Cs, the power supply output bus 61, each energy storage inductor Lx, and the signal modulation sub-circuit 42. The signal modulation sub-circuit 42 is coupled to each upper switch Qs and each lower switch Qx.

[0073] Specifically, taking the first energy storage compensation circuit 30, which includes a set number of n voltage conversion sub-circuits 51, as an example, it can be seen that the energy storage characteristic current I L Specifically, the inductor current I in each voltage conversion sub-circuit 51 Lx The sum of all additions.

[0074] The signal sampling sub-circuit 41 is used to sample and acquire in real time the power supply output voltage Vbus on the power supply output bus, the energy storage characteristic voltage Vc in the energy storage sub-circuit 52, and the inductor current I in each voltage conversion sub-circuit 51. Lx , to be sent to the corresponding signal modulator circuit 42.

[0075] The signal modulation sub-circuit 42 is used to perform a first filtering process on the power supply output voltage Vbus to obtain the target output voltage Vbus-ref. The target output voltage Vbus-ref and the power supply output voltage Vbus are processed by a preset operation function or rule program to obtain a feedback regulation output value. The energy storage regulation output value is obtained by using the target energy storage voltage Vc-ref and the energy storage characteristic voltage Vc. Finally, the voltage regulation output value is obtained by using the feedback regulation output value and the energy storage regulation output value.

[0076] Furthermore, the inductor current I in each voltage conversion sub-circuit 51 is... Lx The energy storage characteristic current I is obtained by summing. L To store the characteristic current I L Subtracting the voltage regulation output value yields the second error value, which is then used to perform a second regulation operation to obtain the reference current regulation value.

[0077] In some embodiments, the second adjustment operation may be one or more of the proportional-integral algorithm, proportional-integral-differential algorithm, and amplitude limiting algorithm, and is preferably the proportional-integral algorithm. This application does not limit this.

[0078] S162: Divide the energy storage characteristic current by the set quantity to obtain the average inductor current.

[0079] The set quantity n is a positive integer greater than 1, so as to set the energy storage characteristic current I. L Divide by the set number n to obtain the average inductor current.

[0080] S163: Subtract the average inductor current from each inductor current to obtain each current sharing compensation value.

[0081] The signal modulation sub-circuit 42 is also used to convert the inductor current I acquired in each sample into a signal modulator. Lx Subtract the average inductor current from each value to obtain the current sharing compensation value.

[0082] S164: Add each current sharing compensation value to the reference current adjustment value to obtain each current adjustment output value.

[0083] Furthermore, each current-sharing compensation value is added to the currently calculated reference current regulation value to obtain each current regulation output value.

[0084] Understandably, the signal modulation sub-circuit 42 is also used to perform signal modulation on each currently acquired current regulation output value using a preset signal modulation rule or operation function, so as to obtain the corresponding drive control signal for each voltage conversion sub-circuit 51, and dynamically adjust the duty cycle of each drive control signal in response to the change of each current regulation output value.

[0085] Specifically, the signal modulation sub-circuit 42 sends each drive control signal to each voltage conversion sub-circuit 51 to adjust the switching state of each voltage conversion sub-circuit 51, thereby dynamically adjusting the power supply output voltage Vbus.

[0086] Understandably, this signal modulation sub-circuit 42 works through the combined action of the inner current loop, the outer output voltage loop, and the outer energy storage voltage loop. The inner current loop samples the energy storage characteristic current I. L As the loop feedback signal, the command value is the superposition of the output values ​​of the outer loop of the output voltage and the outer loop of the energy storage voltage. The inner current loop realizes bidirectional power flow by calculating the duty cycle of the drive control signal. At the same time, the outer loop of the output voltage also has the function of an internal current sharing loop to ensure the interphase inductor current I. Lx Current sharing; the outer loop of the energy storage voltage is mainly used during the power-on startup phase and to ensure the center voltage of the supercapacitor.

[0087] Please continue reading. Figure 6 and Figure 7 ,in, Figure 6 yes Figure 1 A flowchart of an embodiment of S13 is shown. Figure 7 yes Figure 4 A logic framework diagram of another embodiment of signal processing by the drive control circuit. In one embodiment, the drive control method of this application, in addition to the above-described S11-S18, further includes some more specific steps. Specifically, the above-described S13 may further include the following steps:

[0088] S131: Obtain the reference adjustment value using the target output voltage and the supply output voltage.

[0089] Understandably, due to certain deviations in the operation and processing of the signal modulator circuit 42, namely, the small fluctuation dimension of the power supply output voltage Vbus, the voltage loop output is abnormal, and it is necessary to set the hysteresis range of the reference adjustment value.

[0090] Specifically, the signal modulation sub-circuit 42 uses one or more of the following preset operation functions or rule programs, such as difference algorithm, compensation adjustment algorithm, amplitude limiting algorithm, to calculate the reference adjustment value of the target output voltage Vbus-ref and the power supply output voltage Vbus. This application does not limit this.

[0091] S132: Detect whether the baseline adjustment value is within the first threshold range.

[0092] Furthermore, it is detected whether the currently acquired baseline adjustment value is within the first threshold range.

[0093] In some embodiments, the first threshold range may specifically be ±25mV, ±20mV, ±30mV or other reasonable voltage threshold range, and is preferably ±25mV. Specifically, it is the hysteresis interval set by the actual application scenario to prevent abnormal fitting of the voltage loop output due to static deviation. This application does not limit this.

[0094] If the baseline adjustment value is within the first threshold range, then S133 is executed; if the baseline adjustment value is not within the first threshold range, then S134 is executed.

[0095] S133: Maintain the previous feedback adjustment output value unchanged.

[0096] Understandably, when the currently acquired reference adjustment value is determined to be within the first threshold range, it indicates that the fluctuation dimension of the power supply output voltage Vbus is small or there is a static deviation. Therefore, there is no need to adjust the corresponding drive control signal. That is, the previous feedback adjustment output value is kept unchanged, or the currently acquired reference adjustment value is deleted, so as to avoid abnormal voltage loop output, which would affect the regulation of the power supply output voltage Vbus.

[0097] It is worth noting that the feedback adjustment output value of the previous cycle can be understood as the feedback adjustment output value obtained by the signal modulation sub-circuit 42 in the previous signal modulation operation cycle, or it can be understood as the feedback adjustment output value calculated in the signal cycle of the previous drive control signal. That is, when the error between the reference adjustment value calculated in the current signal cycle and the reference adjustment value calculated in the previous signal cycle is within the first threshold range, the feedback adjustment output value in the current signal cycle will not be adjusted.

[0098] S134: Perform the first adjustment operation on the reference adjustment value to obtain the feedback adjustment output value.

[0099] When it is determined that the currently acquired reference adjustment value is not within the first threshold range, it indicates that the fluctuation dimension of the power supply output voltage Vbus is large and adjustment is required. The first adjustment operation is then performed on the reference adjustment value to obtain the feedback adjustment output value.

[0100] In some embodiments, the first adjustment operation may be one or more of the proportional-integral algorithm, proportional-integral-derivative algorithm, and amplitude limiting algorithm, and is preferably the proportional-integral algorithm. This application does not limit this.

[0101] Please continue reading. Figure 8 , Figure 8 yes Figure 6The flowchart of S131 in one embodiment is shown below. In one embodiment, the drive control method of this application, in addition to S131-S134 described above, further includes some more specific steps. Specifically, S131 may further include the following steps:

[0102] S13111: Subtract the supply output voltage from the target output voltage to obtain the first error value.

[0103] Understandably, in order to ensure that the energy storage characteristic voltage Vc is not too low or too high and thus lose its peak-shaving and valley-filling function, it is also necessary to balance the input and output power of the supercapacitor over a period of time.

[0104] Specifically, the signal modulator circuit 42 subtracts the power supply output voltage Vbus from the target output voltage Vbus-ref to obtain the first error value.

[0105] S13112: Perform a second filtering process on the energy storage characteristic current to obtain the charge-discharge balance current.

[0106] The energy storage characteristic current I can be filtered using any reasonable filtering method, such as low-pass filtering or sliding window filtering. L A second filtering process is performed to obtain the charge-discharge balance current.

[0107] In some embodiments, the cutoff frequency or window length of the second filtering process may be different from or the same as that of the first filtering process; this application does not limit this.

[0108] S13113: Multiply the charge / discharge balance current by the first adjustment coefficient to obtain the charge / discharge balance adjustment value.

[0109] Furthermore, the charge-discharge balance current is multiplied by the first adjustment coefficient R1 to obtain the charge-discharge balance adjustment value.

[0110] The first adjustment coefficient R1 is positively correlated with the energy storage characteristic voltage Vc. That is, when the energy storage characteristic voltage Vc is large, the first adjustment coefficient R1 is also large, so that the charge-discharge balance adjustment value is large; when the energy storage characteristic voltage Vc is small, the first adjustment coefficient R1 is also small, so that the charge-discharge balance adjustment value is small, so as to balance the input and output power of the supercapacitor.

[0111] In some embodiments, the first adjustment coefficient R1 and the energy storage characteristic voltage Vc can specifically satisfy one of any reasonable monotonic function relationships such as linear function, arithmetic function or exponential function, and this application does not limit this.

[0112] S13114: Subtract the charge / discharge balance adjustment value from the first error value to obtain the reference adjustment value.

[0113] Furthermore, the reference adjustment value is obtained by subtracting the charge-discharge balance adjustment value from the currently obtained first error value.

[0114] Please continue reading. Figure 9 , Figure 9 yes Figure 6 A flowchart illustrating another embodiment of S131 is shown below. In one embodiment, the drive control method of this application, in addition to S131-S134 described above, further includes some more specific steps. Specifically, S131 may further include the following steps:

[0115] S13121: Subtract the supply output voltage from the target output voltage to obtain the first error value.

[0116] Understandably, in order to suppress the surge or descent of the energy storage characteristic voltage Vc under specific operating conditions and avoid triggering fault protection to affect power supply stability, it is also necessary to directly compensate for the energy storage characteristic voltage Vc.

[0117] Specifically, the signal modulator circuit 42 subtracts the power supply output voltage Vbus from the target output voltage Vbus-ref to obtain the first error value.

[0118] S13122: Detect whether the energy storage characteristic voltage is within the second threshold range.

[0119] Understandably, under normal operating conditions of the second energy storage compensation circuit 50, the energy storage characteristic voltage Vc across the corresponding supercapacitor is generally within a reasonable range, thereby enabling the second threshold range to be obtained through simulation experiments and data fitting to avoid triggering fault protection.

[0120] Furthermore, it is detected whether the currently acquired energy storage characteristic voltage Vc is within the second threshold range.

[0121] If the energy storage characteristic voltage Vc is within the second threshold range, then S13123 is executed; if the energy storage characteristic voltage Vc is not within the second threshold range, then S13124 is executed.

[0122] S13123: Set the energy storage compensation value to 0.

[0123] When the signal modulator circuit 42 determines that the energy storage characteristic voltage Vc is within the second threshold range, it indicates that the energy storage characteristic voltage Vc is within a reasonable range and no compensation is required, so that the energy storage compensation value is 0.

[0124] S13124: Multiply the energy storage characteristic voltage by the second adjustment coefficient to obtain the energy storage compensation value.

[0125] When the signal modulation sub-circuit 42 determines that the energy storage characteristic voltage Vc is not within the second threshold range, it indicates that the energy storage characteristic voltage Vc is out of a reasonable range and needs to be compensated, so that the energy storage characteristic voltage Vc is multiplied by the second adjustment coefficient K to obtain the energy storage compensation value.

[0126] The minimum difference between the boundary value of the second threshold range and the energy storage characteristic voltage Vc is positively correlated with the second adjustment coefficient K. That is, when the minimum difference is large, the second adjustment coefficient K is also large, so that the energy storage compensation value is large; when the minimum difference is small, the second adjustment coefficient K is also small, so that the energy storage compensation value is small, so as to suppress the surge or slump of the energy storage characteristic voltage Vc under specific operating conditions.

[0127] It is worth noting that the second threshold range has two boundary values: an upper limit and a lower limit. When the energy storage characteristic voltage Vc exceeds the upper limit of the second threshold range, the minimum difference is specifically the difference between the upper limit of the second threshold range and the energy storage characteristic voltage Vc, which is a negative value, used to suppress the energy storage characteristic voltage Vc from rising. When the energy storage characteristic voltage Vc is lower than the lower limit of the second threshold range, the minimum difference is specifically the difference between the lower limit of the second threshold range and the energy storage characteristic voltage Vc, which is a positive value, used to suppress the energy storage characteristic voltage Vc from falling.

[0128] In some embodiments, the second adjustment coefficient K and the minimum difference can specifically satisfy one of any reasonable monotonic function relationship such as linear function, arithmetic function or exponential function, and this application does not limit this.

[0129] S13125: Add the energy storage compensation value to the first error value to obtain the benchmark adjustment value.

[0130] Furthermore, the baseline adjustment value is obtained by adding the energy storage compensation value to the currently acquired first error value.

[0131] Please continue reading. Figure 10 , Figure 10 yes Figure 6 The flowchart below illustrates an embodiment of S134. In one embodiment, the drive control method of this application, in addition to the above-described S131-S134, further includes some more specific steps. Specifically, the above-described S134 may further include the following steps:

[0132] S13411: Multiply the energy storage characteristic current by the third regulation coefficient to obtain the droop current equalization regulation value.

[0133] Understandably, when there are multiple voltage conversion sub-circuits 51, parallel current sharing needs to be achieved between each voltage conversion sub-circuit 51, which requires the use of droop current sharing regulation.

[0134] Specifically, the signal modulation sub-circuit 42 will use the currently acquired energy storage characteristic current I L Multiply by the third adjustment coefficient R to obtain the drooping flow equalization adjustment value.

[0135] The third adjustment coefficient R is positively correlated with the energy storage characteristic voltage Vc. When the energy storage characteristic voltage Vc is large, the third adjustment coefficient R is also large, so that the droop current sharing adjustment value is large. When the energy storage characteristic voltage Vc is small, the third adjustment coefficient R is also small, so that the droop current sharing adjustment value is small, so as to achieve parallel current sharing among each voltage conversion sub-circuit 51.

[0136] S13412: Subtract the drooping flow equalization adjustment value from the reference adjustment value to obtain the first compensation adjustment value.

[0137] Furthermore, the first compensation adjustment value is obtained by subtracting the drooping flow equalization adjustment value from the currently obtained benchmark adjustment value.

[0138] S13413: Perform a first adjustment operation on the first compensation adjustment value to obtain the feedback adjustment output value.

[0139] Furthermore, a first adjustment operation is performed on the first compensation adjustment value, such as proportional-integral adjustment, to obtain the feedback adjustment output value.

[0140] Please continue reading. Figure 11 , Figure 11 yes Figure 6 A flowchart illustrating another embodiment of S134 is shown below. In one embodiment, the drive control method of this application, in addition to S131-S134 described above, further includes some more specific steps. Specifically, S134 may further include the following steps:

[0141] S13421: Acquire the current sharing bus signal sent by the power supply circuit.

[0142] Understandably, in order to optimize the dynamic load compensation of the first energy storage compensation circuit 30 and / or adapt to the application scenario where the power supply circuit can correctly issue the current sharing bus signal Is and be correctly identified by the signal modulation sub-circuit 42, the signal modulation sub-circuit 42 can also reserve an adjustment algorithm for compensation using the current sharing bus signal Is. Of course, the loss of the current sharing bus signal Is will not affect the dynamic load compensation of the signal modulation sub-circuit 42.

[0143] Specifically, the signal modulator circuit 42 receives the current sharing bus signal Is sent by the power supply circuit.

[0144] S13422: Obtain the current sharing compensation voltage value using the current sharing bus signal.

[0145] The current sharing bus signal Is is processed by a preset calculation function or rule program, such as one or more of the proportional integral algorithm, proportional integral derivative algorithm, and amplitude limiting algorithm, to obtain the current sharing compensation voltage value. This application does not limit the specific calculation function or rule program.

[0146] S13423: Add the current sharing compensation voltage value to the reference adjustment value to obtain the second compensation adjustment value.

[0147] The second compensation adjustment value is obtained by adding the current sharing compensation voltage value to the currently obtained reference adjustment value.

[0148] S13424: Perform the first adjustment operation on the second compensation adjustment value to obtain the feedback adjustment output value.

[0149] Perform a first adjustment operation on the second compensation adjustment value, such as proportional-integral adjustment, to obtain the feedback adjustment output value.

[0150] Furthermore, in some embodiments, such as Figure 7 As shown, S13 may further include: subtracting the supply output voltage Vbus from the target output voltage Vbus-ref to obtain a first error value; and adjusting the energy storage characteristic current I... L A second filtering process is performed to obtain the charge-discharge balance current; the charge-discharge balance current is multiplied by the first adjustment coefficient R1 to obtain the charge-discharge balance adjustment value; in response to the energy storage characteristic voltage Vc not being within the second threshold range, the energy storage characteristic voltage Vc is multiplied by the second adjustment coefficient K to obtain the energy storage compensation value; the first error value is subtracted from the charge-discharge balance adjustment value, and the energy storage compensation value is added to obtain the reference adjustment value; in response to the reference adjustment value not being within the first threshold range, the energy storage characteristic current I... L Multiply by the third adjustment coefficient R to obtain the drooping current sharing adjustment value; subtract the drooping current sharing adjustment value from the reference adjustment value to obtain the first compensation adjustment value; obtain the current sharing bus signal Is sent by the power supply circuit; obtain the current sharing compensation voltage value using the current sharing bus signal Is; perform a first adjustment operation on the first compensation adjustment value to obtain the feedback adjustment output value, or perform a first adjustment operation on the sum of the first compensation adjustment value and the current sharing compensation voltage value to obtain the feedback adjustment output value.

[0151] It is understood that the above implementation steps actually correspond to a detailed control strategy for the outer loop of the output voltage, and correspond to the various embodiments related to S13 above. Please refer to the following for details. Figures 4-11 The relevant textual content will not be repeated here.

[0152] Furthermore, in some embodiments, the above-mentioned S14 may further include: performing a third adjustment operation on the voltage difference between the target energy storage voltage Vc-ref and the energy storage characteristic voltage Vc to obtain an energy storage adjustment output value.

[0153] In some embodiments, the third adjustment operation may be one or more of the proportional-integral algorithm, proportional-integral-differential algorithm, and amplitude limiting algorithm, and is preferably the proportional-integral algorithm. This application does not limit this.

[0154] Please continue reading. Figure 12 , Figure 12 yes Figure 1 The flowchart of S15 is shown in one embodiment. In one embodiment, the drive control method of this application, in addition to S11-S18 described above, further includes some more specific steps. Specifically, S15 may further include the following steps:

[0155] S151: Detect whether the energy storage characteristic voltage is within the third threshold range.

[0156] Understandably, under different operating conditions, especially during the power-on startup phase of the first energy storage compensation circuit 30, the dynamic load compensation performed by the signal modulation sub-circuit 42 needs to be adaptively selected and adjusted.

[0157] Specifically, when the signal modulation sub-circuit 42 is powered on for the first time, it is detected whether the currently acquired energy storage characteristic voltage Vc is within the third threshold range.

[0158] It is worth noting that the third threshold range is the voltage range in which the first energy storage compensation circuit 30 is located during the power-on startup phase, in order to identify whether the first energy storage compensation circuit 30 is in the power-on startup phase or has ended the power-on startup phase, and thus adjust the dynamic load compensation strategy.

[0159] In some embodiments, the third threshold range can be any reasonable voltage range such as 0-32V, 0-35V or 0-40V, and is preferably 0-35V. The specific range is determined by the energy storage capacity requirements in the actual application scenario, and this application does not limit it.

[0160] If the energy storage characteristic voltage Vc is within the third threshold range, then S152 is executed; if the energy storage characteristic voltage Vc is within the third threshold range, then S153 is executed.

[0161] S152: Set the voltage regulation output value to equal the energy storage regulation output value.

[0162] Once the energy storage characteristic voltage Vc is determined to be within the third threshold range, indicating that the power-on startup phase is underway, the energy storage regulation output value is assigned to the voltage regulation output value, while the feedback regulation output value is ignored, so that voltage loop feedback regulation is achieved using only the energy storage regulation output value.

[0163] S153: The voltage regulation output value is obtained by superimposing the feedback regulation output value on the energy storage regulation output value.

[0164] Once it is determined that the energy storage characteristic voltage Vc is not within the third threshold range, it indicates that the power-on start-up phase has ended. The voltage regulation output value is obtained by superimposing the feedback regulation output value on the energy storage regulation output value, thereby realizing voltage loop feedback regulation.

[0165] Furthermore, in some embodiments, the above-mentioned S153 can be replaced by: setting the voltage regulation output value equal to the feedback regulation output value.

[0166] Understandably, in some application scenarios or under special operating conditions, when it is determined that the energy storage characteristic voltage Vc is not within the third threshold range, that is, the power-on start-up phase has ended, the feedback regulation output value can be assigned to the voltage regulation output value, while ignoring the energy storage regulation output value, so as to achieve voltage loop feedback regulation using only the feedback regulation output value.

[0167] This application also provides an electronic device, please refer to... Figure 13 , Figure 13 This is a schematic diagram of one embodiment of the electronic device of this application. In this embodiment, the electronic device 70 includes a housing 71 and a third drive control circuit 72 connected to the housing 71.

[0168] It should be noted that the third drive control circuit 72 described in this embodiment is either the first drive control circuit 20 or the second drive control circuit 40 described in any of the above embodiments. Please refer to [link / reference] for details. Figures 1-12 The relevant textual content will not be elaborated upon here.

[0169] The beneficial effects of this application are as follows: Unlike existing technologies, the drive control method provided in this application obtains the power supply output voltage, energy storage characteristic voltage, and energy storage characteristic current in the energy storage compensation circuit. It then performs a first filtering process on the power supply output voltage to obtain the target output voltage. Furthermore, it uses the target output voltage and the power supply output voltage to obtain a feedback-regulated output value. Finally, it uses the target energy storage voltage and the energy storage characteristic voltage to obtain an energy storage regulated output value. It uses the feedback-regulated output value and the energy storage regulated output value to obtain a voltage regulated output value. Finally, it uses the energy storage characteristic current and the voltage regulated output value to obtain a current regulated output value. The output value generates a drive control signal, which is sent to the energy storage compensation circuit to adjust the power supply output voltage. This allows for direct response to the power supply output voltage of the energy storage compensation circuit to achieve dynamic load compensation. There is no need to detect the current sharing bus signal and signal line transmission, resulting in shorter compensation delay, faster response, and better dynamic compensation for spikes. Furthermore, there is no need to configure a current sharing bus signal sampling and detection circuit, making the circuit structure simpler. It also avoids the loss of compensation capability due to the loss or mismatch of the current sharing bus signal, resulting in high design reliability, unrestricted compensation function, and a wide range of applications.

[0170] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A drive control method applied to the drive control of an energy storage compensation circuit, characterized in that, The drive control method includes: Obtain the power supply output voltage, energy storage characteristic voltage, and energy storage characteristic current in the energy storage compensation circuit; wherein, the energy storage compensation circuit includes an energy storage sub-circuit and a voltage conversion sub-circuit coupled to each other, the energy storage characteristic voltage is the output voltage of the energy storage sub-circuit, and the energy storage characteristic current is the input current of the voltage conversion sub-circuit; The target output voltage is obtained by performing a first filtering process on the power supply output voltage; The feedback-regulated output value is obtained using the target output voltage and the power supply output voltage; The energy storage regulation output value is obtained by using the target energy storage voltage and the energy storage characteristic voltage; Detect whether the energy storage characteristic voltage is within the third threshold range; If the energy storage characteristic voltage is within the third threshold range, set the voltage regulation output value equal to the energy storage regulation output value; If the energy storage characteristic voltage is not within the third threshold range, the voltage regulation output value is obtained by superimposing the feedback regulation output value on the energy storage regulation output value, or the voltage regulation output value is set equal to the feedback regulation output value. The current regulation output value is obtained by using the energy storage characteristic current and the voltage regulation output value; The current is used to adjust the output value to generate a drive control signal; The drive control signal is sent to the energy storage compensation circuit to trigger the energy storage compensation circuit to change the switching state, thereby regulating the power supply output voltage.

2. The drive control method according to claim 1, characterized in that, The step of obtaining the feedback-regulated output value using the target output voltage and the power supply output voltage includes: The reference adjustment value is obtained using the target output voltage and the power supply output voltage; Detect whether the reference adjustment value is within the first threshold range; If the benchmark adjustment value is not within the first threshold range, a first adjustment operation is performed on the benchmark adjustment value to obtain the feedback adjustment output value.

3. The drive control method according to claim 2, characterized in that, The step of obtaining the reference adjustment value using the target output voltage and the power supply output voltage includes: The first error value is obtained by subtracting the power supply output voltage from the target output voltage. The energy storage characteristic current is subjected to a second filtering process to obtain the charge-discharge balance current; The charge-discharge balance current is multiplied by a first adjustment coefficient to obtain the charge-discharge balance adjustment value; wherein, the first adjustment coefficient is positively correlated with the energy storage characteristic voltage; The reference adjustment value is obtained by subtracting the charge-discharge balance adjustment value from the first error value.

4. The drive control method according to claim 2, characterized in that, The step of obtaining the reference adjustment value using the target output voltage and the power supply output voltage includes: The first error value is obtained by subtracting the power supply output voltage from the target output voltage. Detect whether the energy storage characteristic voltage is within the second threshold range; If the energy storage characteristic voltage is not within the second threshold range, the energy storage characteristic voltage is multiplied by the second adjustment coefficient to obtain the energy storage compensation value; wherein, the minimum difference between the energy storage characteristic voltage and the boundary value of the second threshold range is positively correlated with the second adjustment coefficient; The reference adjustment value is obtained by adding the energy storage compensation value to the first error value; If the energy storage characteristic voltage is within the second threshold range, the energy storage compensation value is set to 0.

5. The drive control method according to claim 2, characterized in that, The step of performing a first adjustment operation on the reference adjustment value to obtain the feedback adjustment output value includes: The droop current sharing adjustment value is obtained by multiplying the energy storage characteristic current by the third adjustment coefficient; wherein, the third adjustment coefficient is positively correlated with the energy storage characteristic voltage; The first compensation adjustment value is obtained by subtracting the drooping flow equalization adjustment value from the benchmark adjustment value. The first adjustment operation is performed on the first compensation adjustment value to obtain the feedback adjustment output value.

6. The drive control method according to claim 2, characterized in that, The step of performing a first adjustment operation on the reference adjustment value to obtain the feedback adjustment output value includes: Acquire the current sharing bus signal sent by the power supply circuit; The current sharing compensation voltage value is obtained using the current sharing bus signal; The second compensation adjustment value is obtained by adding the current sharing compensation voltage value to the reference adjustment value. The feedback adjustment output value is obtained by performing a first adjustment operation on the second compensation adjustment value.

7. The drive control method according to claim 1, characterized in that, The energy storage compensation circuit includes a set number of voltage conversion sub-circuits, and the step of obtaining the current regulation output value by using the energy storage characteristic current and the voltage regulation output value includes: A second adjustment operation is performed on the second error value between the energy storage characteristic current and the voltage regulation output value to obtain the reference current regulation value; wherein, the energy storage characteristic current is the sum of the inductor currents in each of the voltage conversion sub-circuits; The average inductor current is obtained by dividing the energy storage characteristic current by the set number; wherein, the set number is a positive integer greater than 1. Each current-sharing compensation value is obtained by subtracting the average inductor current from each inductor current. Each current-sharing compensation value is added to the reference current adjustment value to obtain each current-adjusted output value.

8. A drive control circuit, characterized in that, The drive control circuit is coupled to the energy storage compensation circuit. The drive control circuit uses the drive control method as described in any one of claims 1-7 to drive the energy storage compensation circuit.

9. An electronic device, characterized in that, The electronic device includes a housing and a drive control circuit connected to the housing; The drive control circuit is the drive control circuit as described in claim 8.

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