Power consumption method and device for bus voltage, electronic equipment and storage medium

Abstract

The invention discloses a power consumption method and device for bus voltage, electronic equipment and a storage medium, and relates to the technical field of circuit, and the power consumption method comprises the steps: determining a preset safety voltage value of a target power electronic product, determining a power consumption speed based on the preset safety voltage value, and determining a power consumption value of the target power electronic product based on the power consumption speed; and determining the total turn-on duration, the switching period and the current limiting value of the preset circuit, and controlling the preset circuit to consume power according to the total turn-on duration, the switching period and the current limiting value until the current voltage value of the target power electronic product is lower than the preset safety voltage value. The technical problems of cost increase and low power consumption efficiency caused by the fact that circuit hardware needs to be added to consume power for power electronic products in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the field of circuit technology, and in particular to a power consumption method for bus voltage, a device thereof, an electronic device and a storage medium. Background Art

[0002] In power electronic products, the DC link contains a large number of capacitors. Therefore, after the DC link ends, the capacitor voltage of the power electronic product will be too high. For safety reasons, it is necessary to consume the capacitor voltage to a safe voltage within a specified time after the power electronic product is powered off.

[0003] In related technologies, in order to consume the capacitor voltage to a safe voltage, a resistor or a braking unit is often added to the DC bus to ensure that the bus voltage drops to a safe voltage within a specified time after power is removed. Figure 1 is a schematic diagram of an optional power consumption structure according to the relevant technology, such as Figure 1 As shown, there are two schemes: Scheme 1, a resistor can be connected in series on the DC bus to consume power; Scheme 2, a braking unit can be connected in series on the DC bus to consume power, wherein the power consumption structure also includes: a capacitor connected in series on the DC bus.

[0004] However, the above method not only increases the cost but also has low power consumption efficiency.

[0005] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0006] The embodiments of the present invention provide a method for consuming power of a bus voltage and its device, electronic device and storage medium, so as to at least solve the technical problem in the related art that circuit hardware needs to be added to consume power of power electronic products, resulting in increased costs and low power consumption efficiency.

[0007] According to one aspect of an embodiment of the present invention, a power consumption method for a bus voltage is provided, comprising: determining a preset safety voltage value of a target power electronic product, and determining a power consumption rate based on the preset safety voltage value; determining a total on-time, a switching cycle, and a current limiting value of a preset circuit based on the power consumption rate, wherein the preset circuit is a circuit in the target power electronic product; and controlling the preset circuit to consume power according to the total on-time, the switching cycle, and the current limiting value until the current voltage value of the target power electronic product is lower than the preset safety voltage value.

[0008] Optionally, the target power electronic product is an uninterruptible power supply product.

[0009] Optionally, the step of determining the power consumption rate based on the preset safety voltage value includes: determining the initial voltage value of the target power electronic product; and determining the power consumption rate based on the initial voltage value, the preset safety voltage value and a preset power consumption duration.

[0010] Optionally, the preset circuit includes: a first circuit and a second circuit, the position of the first circuit in the target power electronic product is different from the position of the second circuit in the target power electronic product, and the step of controlling the preset circuit to consume power based on the total opening time, the switching cycle and the current limit value includes: determining the opening time based on the total opening time and the switching cycle; opening the first circuit, and closing the first circuit when the opening time of the first circuit reaches the opening time; opening the second circuit when the closing time of the first circuit reaches the preset closing time; closing the second circuit when the opening time of the second circuit reaches the opening time; opening the first circuit when the closing time of the second circuit reaches the preset closing time, until the number of times the first circuit is opened and the number of times the second circuit is opened reach the switching cycle.

[0011] Optionally, in the process of controlling the power consumption of the preset circuit based on the total opening time, the switching cycle and the current limiting value, it also includes: obtaining the current value of the opened preset circuit; when the current value reaches the current limiting value, closing the currently opened preset circuit; when the closing time reaches the preset closing time, opening another preset circuit.

[0012] Optionally, after the number of times the first circuit is opened and the number of times the second circuit is opened reach the switching cycle, it also includes: obtaining the current voltage value of the target power electronic product; judging whether the current voltage value is lower than the preset safety voltage value, and obtaining a judgment result; when the judgment result indicates that the current voltage value is not lower than the preset safety voltage value, executing the step of controlling the preset circuit to consume power.

[0013] Optionally, the power consumption method further includes: analyzing the circuit type of each circuit component included in the target power electronic product to obtain an analysis result; when the analysis result indicates that the circuit type of the target power electronic product is a balanced circuit, determining the first circuit and the second circuit in the balanced circuit, wherein the balanced circuit is used to balance the positive and negative bus voltages of the target power electronic product.

[0014] Optionally, after analyzing the circuit types of each circuit component included in the target power electronic product and obtaining the analysis results, it also includes: when the analysis results indicate that the target power electronic product does not have the circuit type of the balancing circuit, determining other circuit types that exist in the target power electronic product, wherein the other circuit types include at least one of the following: a rectifier, a charger and discharger, and an inverter circuit; determining the first circuit and the second circuit among the other circuits indicated by the other circuit types, and controlling the first circuit and the second circuit to consume power.

[0015] According to another aspect of an embodiment of the present invention, a power consumption device for bus voltage is further provided, including: a first determination unit, used to determine a preset safety voltage value of a target power electronic product, and determine a power consumption rate based on the preset safety voltage value; a second determination unit, used to determine a total on-time, a switching cycle, and a current limiting value of a preset circuit based on the power consumption rate, wherein the preset circuit is a circuit in the target power electronic product; a power consumption unit, used to control the preset circuit to consume power according to the total on-time, the switching cycle, and the current limiting value until the current voltage value of the target power electronic product is lower than the preset safety voltage value.

[0016] Optionally, the target power electronic product is an uninterruptible power supply product.

[0017] Optionally, the first determination unit includes: a first determination module for determining an initial voltage value of the target power electronic product; and a second determination module for determining the power consumption speed based on the initial voltage value, the preset safety voltage value, and a preset power consumption duration.

[0018] Optionally, the preset circuit includes: a first circuit and a second circuit, the position of the first circuit in the target power electronic product is different from the position of the second circuit in the target power electronic product, and the power consumption unit includes: a third determination module, used to determine the opening time based on the total opening time and the switching cycle; a first opening module, used to open the first circuit, and close the first circuit when the opening time of the first circuit reaches the opening time; a second opening module, used to open the second circuit when the closing time of the first circuit reaches the preset closing time; a first closing module, used to close the second circuit when the opening time of the second circuit reaches the opening time; a third opening module, used to open the first circuit when the closing time of the second circuit reaches the preset closing time, until the number of times the first circuit is opened and the number of times the second circuit is opened reaches the switching cycle.

[0019] Optionally, the power consumption device also includes: a first acquisition module, used to obtain the current value of the preset circuit that is turned on during the process of controlling the preset circuit to consume power based on the total opening time, the switching cycle and the current limiting value; a second closing module, used to close the currently opened preset circuit when the current value reaches the current limiting value; and a fourth opening module, used to open another preset circuit when the closing time reaches the preset closing time.

[0020] Optionally, the power consumption device further includes: a second acquisition module, used to obtain the current voltage value of the target power electronic product after the number of times the first circuit is opened and the second circuit is opened reaches the switching cycle; a first judgment module, used to judge whether the current voltage value is lower than the preset safety voltage value and obtain a judgment result; and a first execution module, used to execute the step of controlling the preset circuit to consume power when the judgment result indicates that the current voltage value is not lower than the preset safety voltage value.

[0021] Optionally, the power consumption device further includes: a first analysis module, used to analyze the circuit type of each circuit component included in the target power electronic product to obtain an analysis result; a fourth determination module, used to determine the first circuit and the second circuit in the balancing circuit when the analysis result indicates that the circuit type of the target power electronic product is a balancing circuit, wherein the balancing circuit is used to balance the positive and negative bus voltages of the target power electronic product.

[0022] Optionally, the power consumption device also includes: a fifth determination module, which is used to analyze the circuit types of each circuit component included in the target power electronic product and obtain an analysis result. When the analysis result indicates that the target power electronic product does not have the circuit type of the balancing circuit, determine other circuit types existing in the target power electronic product, wherein the other circuit types include at least one of the following: a rectifier, a charger and discharger, and an inverter circuit; and a sixth determination module, which is used to determine the first circuit and the second circuit among the other circuits indicated by the other circuit types, and control the first circuit and the second circuit to consume power.

[0023] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the above-mentioned power consumption method for bus voltage.

[0024] According to another aspect of an embodiment of the present invention, an electronic device is also provided, comprising one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned power consumption method for bus voltage.

[0025] In the present disclosure, a preset safety voltage value of a target power electronic product is determined, and a power consumption rate is determined based on the preset safety voltage value. Based on the power consumption rate, the total on-time, switching cycle, and current limit value of a preset circuit are determined. Based on the total on-time, switching cycle, and current limit value, the preset circuit is controlled to consume power until the current voltage value of the target power electronic product is lower than the preset safety voltage value. In the present disclosure, the power consumption rate can be determined based on the preset safety voltage value of the target power electronic product, and then based on the total on-time, switching cycle, and current limit value of the preset circuit determined by the power consumption rate, the preset circuit is controlled to consume power so that the current voltage value of the target power electronic product is lower than the preset safety voltage value within a specified time. This allows the power electronic product to be powered on without increasing hardware costs, and the power consumption rate is controllable, effectively improving power consumption efficiency. This solves the technical problem in the related art of requiring additional circuit hardware to power the power electronic product, resulting in increased costs and low power consumption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 is a schematic diagram of an optional power consumption structure according to the related art;

[0028] Figure 2 is a schematic diagram of an optional UPS composition according to an embodiment of the present invention;

[0029] Figure 3 is a flow chart of an optional power consumption method for bus voltage according to an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of an optional power consumption process according to an embodiment of the present invention;

[0031] Figure 5 is a schematic diagram of an inverter circuit included in an optional power electronic product according to an embodiment of the present invention;

[0032] Figure 6 is a schematic diagram of an optional power consumption device for bus voltage according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] To facilitate those skilled in the art to understand the present invention, some of the terms or nouns involved in the embodiments of the present invention are explained below:

[0036] The DC bus is used to convert AC into DC after rectification in the frequency converter, and converts DC into AC in the inverter.

[0037] UPS (Uninterruptible Power System) is an uninterruptible power supply that contains an energy storage device and has an inverter as its main component. It provides constant voltage and frequency.

[0038] A rectifier circuit is a circuit that converts AC power into DC power.

[0039] A balanced circuit is a circuit used to generate equal and opposite signals.

[0040] An inverter circuit is a circuit that converts direct current into alternating current.

[0041] A rectifier is a device that converts alternating current into direct current.

[0042] DCDC, or current converter, is used to convert DC to DC (i.e., convert different DC power values).

[0043] It should be noted that the method for consuming power for bus voltage and the device thereof disclosed in the present invention can be used in the field of circuit technology when consuming power for bus voltage, and can also be used in any field other than the field of circuit technology when consuming power for bus voltage. The present invention does not limit the application field of the method for consuming power for bus voltage and the device thereof.

[0044] It should be noted that the relevant information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this disclosure are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0045] The following embodiments of the present invention can be applied to various systems / applications / devices that consume power from the bus voltage in power electronic products. The present invention proposes an active power consumption method for power electronic products, wherein the power electronic products are uninterruptible power supply products. Taking UPS products as an example, Figure 2 FIG. 1 is a schematic diagram of an optional UPS composition according to an embodiment of the present invention. Figure 2 As shown in the figure, the UPS consists of a rectifier circuit, an inverter circuit, a charge-discharge circuit, and a balancing circuit, as well as a power supply and capacitors. The rectifier, inverter, and balancing circuits are connected in series, while the charge-discharge circuit is connected in parallel with the rectifier, inverter, and balancing circuits. A, B, C, and N represent different mains voltages. When the capacitors need to be charged during a power outage, the UPS's own circuit can be used to do so.

[0046] The present invention can effectively solve the need for additional hardware to consume power in power electronic products without increasing costs. At the same time, the speed of power consumption can be determined according to actual conditions and needs.

[0047] The present invention will be described in detail below with reference to various embodiments.

[0048] Example 1

[0049] According to an embodiment of the present invention, an embodiment of a power consumption method for bus voltage is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0050] Figure 3 is a flow chart of an optional power consumption method for bus voltage according to an embodiment of the present invention, such as Figure 3As shown, the method includes the following steps:

[0051] Step S301 : determining a preset safety voltage value of a target power electronic product, and determining a power consumption rate based on the preset safety voltage value.

[0052] Step S302 : determining the total on-time, switching cycle, and current limit value of a preset circuit based on the power consumption rate, wherein the preset circuit is a circuit in a target power electronic product.

[0053] Step S303 : controlling the preset circuit to consume power according to the total on-time, the switching cycle, and the current limit value until the current voltage of the target power electronic product is lower than the preset safety voltage value.

[0054] Through the above steps, the preset safety voltage value of the target power electronic product can be determined, and the power consumption speed can be determined based on the preset safety voltage value. Based on the power consumption speed, the total on-time, switching cycle, and current limit value of the preset circuit can be determined. According to the total on-time, switching cycle, and current limit value, the preset circuit can be controlled to consume power until the current voltage value of the target power electronic product is lower than the preset safety voltage value. In an embodiment of the present invention, the power consumption speed can be determined based on the preset safety voltage value of the target power electronic product, and then the preset circuit can be controlled to consume power based on the total on-time, switching cycle, and current limit value of the preset circuit determined by the power consumption speed, so that the current voltage value of the target power electronic product is lower than the preset safety voltage value within a specified time. This can consume power for the power electronic product without increasing hardware costs, and the power consumption speed is controllable, effectively improving power consumption efficiency, thereby solving the technical problem in the related art of requiring additional circuit hardware to consume power for the power electronic product, resulting in increased costs and low power consumption efficiency.

[0055] The embodiment of the present invention is described in detail below in conjunction with the above steps.

[0056] Step S301 : determining a preset safety voltage value of a target power electronic product, and determining a power consumption rate based on the preset safety voltage value.

[0057] In an optional embodiment, the target power electronic product is an uninterruptible power supply product.

[0058] In another optional embodiment, the step of determining the power consumption rate based on a preset safety voltage value includes: determining an initial voltage value of the target power electronic product; and determining the power consumption rate based on the initial voltage value, the preset safety voltage value, and the preset power consumption duration.

[0059] In the embodiment of the present invention, the power electronic product is an uninterruptible power supply product that needs to reduce the voltage after power-off to a safe voltage.

[0060] In an embodiment of the present invention, a preset safety voltage value (i.e., a safety voltage, such as 36V) of a target power electronic product (e.g., a UPS product) can be first determined, and then the power consumption rate can be determined based on the preset safety voltage value. Specifically, the initial voltage value of the target power electronic product can be first determined, and then the absolute difference between the initial voltage value and the preset safety voltage value can be determined. Then, based on the absolute difference and the preset power consumption time (i.e., the time required to reduce the voltage to the safety voltage), the power consumption rate can be determined (i.e., the power consumption rate is determined based on the initial voltage value, the preset safety voltage value, and the preset power consumption time).

[0061] Step S302 : determining the total on-time, switching cycle, and current limit value of a preset circuit based on the power consumption rate, wherein the preset circuit is a circuit in a target power electronic product.

[0062] In an embodiment of the present invention, the turn-on time (i.e., the total turn-on time), switching cycle (i.e., the number of times switching is required) and current limiting point (i.e., the current limiting value, which is the maximum current value that can pass) of a preset circuit (i.e., the circuit in the target power electronic product, for example, the upper tube and lower tube circuits of the balancing circuit) can be set according to the required power consumption speed (i.e., based on the power consumption speed, the total turn-on time, switching cycle and current limiting value of the preset circuit are determined).

[0063] In an embodiment of the present invention, if a faster power consumption rate is required, it is necessary to increase the turn-on time and the current limit point, and reduce the switching time of the upper tube and lower tube circuits (that is, increase the switching frequency of the preset circuit to increase the power consumption rate).

[0064] Step S303 : controlling the preset circuit to consume power according to the total on-time, the switching cycle, and the current limit value until the current voltage of the target power electronic product is lower than the preset safety voltage value.

[0065] Optionally, the preset circuit includes: a first circuit and a second circuit, the position of the first circuit in the target power electronic product is different from the position of the second circuit in the target power electronic product, and the step of controlling the preset circuit to consume power based on the total opening time, the switching cycle and the current limit value includes: determining the opening time based on the total opening time and the switching cycle; opening the first circuit, and closing the first circuit when the opening time of the first circuit reaches the opening time; opening the second circuit when the closing time of the first circuit reaches the preset closing time; closing the second circuit when the opening time of the second circuit reaches the opening time; opening the first circuit when the closing time of the second circuit reaches the preset closing time, until the number of times the first circuit is opened and the number of times the second circuit is opened reaches the switching cycle.

[0066] In an embodiment of the present invention, the preset circuit includes: a first circuit (i.e., an upper tube circuit) and a second circuit (i.e., a lower tube circuit). The position of the first circuit in the target power electronic product is different from the position of the second circuit in the target power electronic product (i.e., the upper tube circuit and the lower tube circuit are distinguished according to the different positions). The preset circuit can be controlled to consume power (i.e., by alternately turning on the upper and lower tubes of the preset circuit to consume power for the bus voltage) according to the determined total opening time, switching cycle, and current limit value until the current voltage value of the target power electronic product is lower than the preset safety voltage value, specifically:

[0067] The on-time of each upper and lower tubes can be determined based on the total on-time and the switching cycle, and then the upper tube is turned on. After the on-time of the upper tube ends, the dead time (i.e., the preset off-time) needs to be increased to turn on the lower tube (i.e., the upper tube needs to be turned off for a period of time that reaches the preset off-time period before the lower tube can be turned on) (i.e., the first circuit is turned on, and when the on-time of the first circuit reaches the on-time period, the first circuit is turned off; when the off-time of the first circuit reaches the preset off-time period, the second circuit is turned on). The lower tube is turned on in the same way as the upper tube, and then the upper tube is turned on again, and this cycle is repeated until the end of the switching cycle (i.e., when the on-time of the second circuit reaches the on-time period, the second circuit is turned off; when the off-time of the second circuit reaches the preset off-time period, the first circuit is turned on, until the number of times the first circuit is turned on and the second circuit is turned on reaches the switching cycle).

[0068] In an embodiment of the present invention, taking a UPS product as an example, the balancing circuit in the UPS product can be used to consume power. During normal operation, the balancing circuit is used to balance the positive and negative bus voltages. When power consumption is required, the bus voltage is consumed by alternately turning on the upper and lower tubes of the balancing circuit.

[0069] Figure 4 is a schematic diagram of an optional power consumption process according to an embodiment of the present invention, such as Figure 4 As shown, the upper tube is determined to work for 40ms and be off for 2ms, the lower tube is determined to work for 40ms and be off for 2ms, and the upper and lower tubes are controlled to work alternately until the switching cycle is reached (e.g., 2 times).

[0070] Optionally, in the process of controlling the power consumption of the preset circuit based on the total opening time, the switching cycle and the current limiting value, it also includes: obtaining the current value of the opened preset circuit; when the current value reaches the current limiting value, closing the currently opened preset circuit; when the closing time reaches the preset closing time, opening another preset circuit.

[0071] In an embodiment of the present invention, in the process of controlling the power consumption of a preset circuit based on the total opening time, the switching cycle and the current limiting value, the current value of the opened preset circuit can be obtained (for example, the current passing through when the upper tube is turned on, or the current passing through when the lower tube is turned on). If it is detected that the current passing through reaches the current limiting value, the currently turned-on circuit can be directly turned off, and after the closing time reaches the preset closing time, another circuit can be turned on (that is, when the current value reaches the current limiting value, the currently opened preset circuit is turned off, and when the closing time reaches the preset closing time, another preset circuit is turned on). In this way, the circuit can be prevented from being overloaded and damaging the power electronic products.

[0072] Optionally, after the number of times the first circuit is opened and the number of times the second circuit is opened reach the switching cycle, it also includes: obtaining the current voltage value of the target power electronic product; judging whether the current voltage value is lower than the preset safety voltage value, and obtaining a judgment result; when the judgment result indicates that the current voltage value is not lower than the preset safety voltage value, executing the step of controlling the preset circuit to consume power.

[0073] In an embodiment of the present invention, after the switching cycle ends (that is, after the number of times the first circuit is opened and the number of times the second circuit is opened reaches the switching cycle), the current voltage value of the target power electronic product can be obtained first to determine whether the current voltage value is lower than the preset safety voltage value to obtain a judgment result. If the judgment result indicates that the current voltage value is not lower than the preset safety voltage value, the step of controlling the preset circuit to consume power is executed again (that is, the next switching cycle is started again to consume power for the power electronic product) until the bus voltage is lower than the safety voltage and power consumption is stopped.

[0074] Optionally, the power consumption method also includes: analyzing the circuit type of each circuit component included in the target power electronic product to obtain an analysis result; when the analysis result indicates that the circuit type of the target power electronic product is a balanced circuit, determining the first circuit and the second circuit in the balanced circuit, wherein the balanced circuit is used to balance the positive and negative bus voltages of the target power electronic product.

[0075] In an embodiment of the present invention, the circuit types of the circuit components included in the target power electronic product can be analyzed first to obtain an analysis result. If the analysis result indicates that the target power electronic product contains a circuit type including a balancing circuit (the balancing circuit is used to balance the positive and negative bus voltages of the target power electronic product), the first circuit and the second circuit (i.e., the upper and lower tube circuits) in the balancing circuit can be determined, and then the upper and lower tube circuits are alternately turned on to consume power to the bus voltage.

[0076] Optionally, after analyzing the circuit types of each circuit component included in the target power electronic product and obtaining the analysis results, it also includes: when the analysis results indicate that the target power electronic product does not have a circuit type of a balancing circuit, determining other circuit types that exist in the target power electronic product, wherein the other circuit types include at least one of the following: a rectifier, a charger and discharger, and an inverter circuit; determining the first circuit and the second circuit in the other circuits indicated by the other circuit types, and controlling the first circuit and the second circuit to consume power.

[0077] In an embodiment of the present invention, if the analysis result indicates that the target power electronic product contains a circuit type that does not include a balancing circuit, other circuit types present in the target power electronic product can be determined, such as a rectifier, a charger and discharger, an inverter circuit, etc., and then the first circuit and the second circuit among the other circuits indicated by the other circuit types are determined, and the first circuit and the second circuit are controlled to consume power.

[0078] In the embodiment of the present invention, discharging is not limited to using a balancing circuit. Discharging can also be performed using other circuits in other power electronic products, such as a rectifier, a DC / DC charger / discharger, and an inverter circuit, to achieve the purpose of bus discharge. The present invention is applicable to all relevant power electronic products, effectively solving the requirement that the bus voltage drop to a safe voltage within a specified time after the power electronic products are powered off, thereby ensuring personal safety.

[0079] In an embodiment of the present invention, an active power consumption method for power electronic products is proposed, which can achieve the following beneficial effects: (1) no increase in hardware cost is required; (2) the discharge speed is controllable; (3) in products without a balancing circuit, a rectifier, a DC / DC charger / discharger, an inverter circuit, etc. can also be used to consume power; (4) power can be consumed in the presence of mains power or batteries.

[0080] The following describes it in detail with reference to another embodiment.

[0081] Example 2

[0082] In the embodiment of the present invention, assuming that the power electronic product that needs to consume bus voltage power does not include a balancing circuit (for example, a UPS product that does not include a balancing circuit), other circuit types included in the power electronic product (for example, a rectifier, a DC / DC charger / discharger, an inverter circuit, etc.) can be obtained first, and then one circuit type is selected from the other circuit types for power consumption, specifically:

[0083] If the power electronic product includes an inverter circuit, the upper and lower tubes of the inverter circuit can be turned on alternately to consume power from the bus voltage.

[0084] The entire power consumption process is divided into the following steps:

[0085] (1) First, turn on the upper tube. The total turn-on time, switching cycle and current limit point are set according to the required power consumption speed. If a faster power consumption speed is required, the total turn-on time and current limit point need to be increased and the upper tube switching time needs to be reduced.

[0086] (2) After the upper pipe is opened for a certain period of time, the dead time needs to be increased before the lower pipe can be opened.

[0087] (3) Open the lower pipe in the same way as the upper pipe, then open the upper pipe, and repeat the cycle.

[0088] (4) Stop consuming power when the bus voltage is lower than the safety voltage.

[0089] Figure 5 is a schematic diagram of an inverter circuit included in an optional power electronic product according to an embodiment of the present invention, such as Figure 5 As shown, the inverter circuit includes: capacitors (e.g., C1, C2, C3), a filter inductor L1, a diode D (e.g., D1, D2, D3, D4), and an inverter Q (i.e., an IGBT, used to control the inverter voltage) (e.g., Q1, Q2, Q3, Q4), wherein the filter inductor L1 is used to filter out the switching frequency subvoltage harmonics, the diode D is used to provide an inductor current freewheeling circuit, and the inverter Q is used to control the inverter voltage.

[0090] exist Figure 5 In the circuit, Q1 and Q3 form a pair of upper and lower transistors, and Q2 and Q4 form a pair of upper and lower transistors. During the positive half-cycle of the output sinusoidal voltage, Q1 and Q3 complement each other, Q4 is always on, and Q2 is always off. During the negative half-cycle of the output sinusoidal voltage, Q2 and Q4 complement each other, Q3 is always on, and Q1 is always off.

[0091] In the embodiments of the present invention, the following beneficial effects can be achieved: discharging is not limited to using a balancing circuit, and a rectifier, a DC / DC charger / discharger, an inverter circuit, etc. can also be used to achieve the purpose of bus discharge. The present invention is applicable to all relevant power electronic products, and solves the requirement that the bus voltage drop to a safe voltage within a specified time after the power electronic products are powered off, thereby ensuring personal safety.

[0092] The following describes it in detail with reference to another embodiment.

[0093] Example 3

[0094] The power consumption device for bus voltage provided in this embodiment includes multiple implementation units, and each implementation unit corresponds to each implementation step in the above-mentioned embodiment 1.

[0095] Figure 6 is a schematic diagram of an optional power consumption device for bus voltage according to an embodiment of the present invention, such as Figure 6As shown, the power consumption device may include: a first determining unit 60, a second determining unit 61, and a power consumption unit 62, wherein:

[0096] A first determining unit 60 is configured to determine a preset safety voltage value of a target power electronic product and determine a power consumption rate based on the preset safety voltage value;

[0097] a second determining unit 61 for determining a total on-time, a switching cycle, and a current limit value of a preset circuit based on the power consumption rate, wherein the preset circuit is a circuit in a target power electronic product;

[0098] The power consumption unit 62 is used to control the preset circuit to consume power according to the total opening time, the switching cycle and the current limit value until the current voltage value of the target power electronic product is lower than the preset safety voltage value.

[0099] The power consumption device can determine a preset safety voltage value of a target power electronic product through a first determination unit 60, and determine a power consumption rate based on the preset safety voltage value. A second determination unit 61 can determine a total on-time, switching cycle, and current limit value of a preset circuit based on the power consumption rate. The power consumption unit 62 can control the preset circuit to consume power based on the total on-time, switching cycle, and current limit value until the current voltage value of the target power electronic product falls below the preset safety voltage value. In an embodiment of the present invention, the power consumption rate can be determined based on the preset safety voltage value of the target power electronic product, and then the preset circuit can be controlled to consume power based on the total on-time, switching cycle, and current limit value of the preset circuit determined based on the power consumption rate, so that the current voltage value of the target power electronic product falls below the preset safety voltage value within a specified time. This allows power consumption of the power electronic product without increasing hardware costs, and the power consumption rate is controllable, effectively improving power consumption efficiency. This solves the technical problem in related arts of requiring additional circuit hardware to consume power for power electronic products, resulting in increased costs and low power consumption efficiency.

[0100] Optionally, the target power electronic product is an uninterruptible power supply product.

[0101] Optionally, the first determination unit includes: a first determination module for determining an initial voltage value of the target power electronic product; and a second determination module for determining a power consumption rate based on the initial voltage value, a preset safety voltage value, and a preset power consumption duration.

[0102] Optionally, the preset circuit includes: a first circuit and a second circuit, the position of the first circuit in the target power electronic product is different from the position of the second circuit in the target power electronic product, and the power consumption unit includes: a third determination module, used to determine the opening time based on the total opening time and the switching cycle; a first opening module, used to open the first circuit, and close the first circuit when the opening time of the first circuit reaches the opening time; the second opening module, used to open the second circuit when the closing time of the first circuit reaches the preset closing time; the first closing module, used to close the second circuit when the opening time of the second circuit reaches the opening time; the third opening module, used to open the first circuit when the closing time of the second circuit reaches the preset closing time, until the number of times the first circuit is opened and the number of times the second circuit is opened reaches the switching cycle.

[0103] Optionally, the power consumption device also includes: a first acquisition module, used to obtain the current value of the opened preset circuit in the process of controlling the preset circuit to consume power based on the total opening time, the switching cycle and the current limiting value; a second closing module, used to close the currently opened preset circuit when the current value reaches the current limiting value; and a fourth opening module, used to open another preset circuit when the closing time reaches the preset closing time.

[0104] Optionally, the power consumption device also includes: a second acquisition module, used to obtain the current voltage value of the target power electronic product after the number of times the first circuit is opened and the number of times the second circuit is opened reaches the switching cycle; a first judgment module, used to judge whether the current voltage value is lower than the preset safety voltage value and obtain a judgment result; a first execution module, used to execute the step of controlling the preset circuit to consume power when the judgment result indicates that the current voltage value is not lower than the preset safety voltage value.

[0105] Optionally, the power consumption device also includes: a first analysis module, used to analyze the circuit type of each circuit component included in the target power electronic product to obtain an analysis result; a fourth determination module, used to determine the first circuit and the second circuit in the balanced circuit when the analysis result indicates that the circuit type of the target power electronic product is a balanced circuit, wherein the balanced circuit is used to balance the positive and negative bus voltages of the target power electronic product.

[0106] Optionally, the power consumption device also includes: a fifth determination module, which is used to analyze the circuit types of each circuit component included in the target power electronic product and obtain the analysis results. When the analysis results indicate that the target power electronic product does not have a circuit type of a balancing circuit, determine other circuit types that exist in the target power electronic product, wherein the other circuit types include at least one of the following: a rectifier, a charger and discharger, and an inverter circuit; and a sixth determination module, which is used to determine the first circuit and the second circuit among the other circuits indicated by the other circuit types, and control the first circuit and the second circuit to consume power.

[0107] The power consumption device may further include a processor and a memory. The first determination unit 60, the second determination unit 61, the power consumption unit 62, etc. are all stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions.

[0108] The processor includes a core that retrieves the corresponding program unit from memory. One or more cores can be configured to control the power consumption of a preset circuit by adjusting core parameters based on the total on-time, switching cycle, and current limit until the current voltage of the target power electronic product falls below a preset safety voltage.

[0109] The above-mentioned memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0110] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having the following method steps: determining a preset safety voltage value of a target power electronic product, and determining a power consumption rate based on the preset safety voltage value; based on the power consumption rate, determining a total on-time, a switching cycle, and a current limiting value of a preset circuit; and controlling the preset circuit to consume power based on the total on-time, the switching cycle, and the current limiting value until the current voltage value of the target power electronic product is lower than the preset safety voltage value.

[0111] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is also provided, which includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the above-mentioned power consumption method for bus voltage.

[0112] According to another aspect of an embodiment of the present invention, an electronic device is also provided, comprising one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by one or more processors, the one or more processors implement the above-mentioned power consumption method for bus voltage.

[0113] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0114] In the above embodiments of the present invention, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0115] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0116] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0117] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0118] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0119] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for power consumption of bus voltage, characterized in that: include: Determining a preset safety voltage value of a target power electronic product, and determining a power consumption rate based on the preset safety voltage value; Based on the power consumption speed, determining a total opening time, a switching cycle, and a current limit value of a preset circuit, wherein the preset circuit is a circuit in the target power electronic product; According to the total on-time, the switching cycle and the current limiting value, the preset circuit is controlled to consume power until the current voltage value of the target power electronic product is lower than the preset safety voltage value.

2. The power consumption method according to claim 1, characterized in that: The target power electronic product is an uninterruptible power supply product.

3. The power consumption method according to claim 2, characterized in that: The step of determining the power consumption speed based on the preset safety voltage value comprises: Determining an initial voltage value of the target power electronic product; The power consumption speed is determined based on the initial voltage value, the preset safety voltage value, and the preset power consumption time.

4. The power consumption method according to claim 2, characterized in that: The preset circuit includes: a first circuit and a second circuit, wherein the first circuit is located at a different position from the second circuit at the target power electronic product, and the step of controlling the preset circuit to consume power according to the total opening time, the switching cycle and the current limiting value includes: Determine the on-time based on the total on-time and the switching cycle; Opening the first circuit, and closing the first circuit when the opening time of the first circuit reaches the opening time; When the duration of closing the first circuit reaches a preset closing duration, opening the second circuit; When the duration of the second circuit being opened reaches the opening duration, closing the second circuit; When the closing time of the second circuit reaches the preset closing time, the first circuit is opened until the number of times the first circuit is opened and the number of times the second circuit is opened reach the switching cycle.

5. The power consumption method according to claim 4, characterized in that: In the process of controlling the preset circuit to consume power according to the total opening time, the switching cycle and the current limiting value, the method further includes: Acquiring a current value of the preset circuit that is turned on; When the current value reaches the current limiting value, closing the currently opened preset circuit; When the closing time reaches the preset closing time, another preset circuit is opened.

6. The power consumption method according to claim 4, characterized in that: After the number of times the first circuit is turned on and the number of times the second circuit is turned on both reach the switching cycle, the method further includes: Obtaining a current voltage value of the target power electronic product; Determine whether the current voltage value is lower than the preset safety voltage value, and obtain a determination result; When the judgment result indicates that the current voltage value is not lower than the preset safety voltage value, a step of controlling the preset circuit to consume power is performed.

7. The power consumption method according to claim 2, characterized in that: The power consumption method further comprises: Analyzing the circuit type of each circuit component included in the target power electronic product to obtain an analysis result; When the analysis result indicates that the circuit type of the target power electronic product is a balancing circuit, a first circuit and a second circuit in the balancing circuit are determined, wherein the balancing circuit is used to balance the positive and negative bus voltages of the target power electronic product.

8. The power consumption method according to claim 7, characterized in that: After analyzing the circuit types of each circuit component included in the target power electronic product and obtaining the analysis results, the method further includes: In the case where the analysis result indicates that the target power electronic product does not have the circuit type of the balancing circuit, determining other circuit types that exist in the target power electronic product, wherein the other circuit types include at least one of the following: a rectifier, a charger and a discharger, and an inverter circuit; The first circuit and the second circuit among other circuits indicated by the other circuit type are determined, and the first circuit and the second circuit are controlled to consume power.

9. A power consumption device for bus voltage, characterized in that include: A first determining unit, configured to determine a preset safety voltage value of a target power electronic product, and determine a power consumption speed based on the preset safety voltage value; A second determining unit, configured to determine a total turn-on time, a switching cycle, and a current limit value of a preset circuit based on the power consumption speed, wherein the preset circuit is a circuit in the target power electronic product; A power consumption unit is used to control the preset circuit to consume power according to the total opening time, the switching cycle and the current limiting value until the current voltage value of the target power electronic product is lower than the preset safety voltage value.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the power consumption method for bus voltage according to any one of claims 1 to 8.

11. An electronic device, characterized in that: It comprises one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the power consumption method for bus voltage as described in any one of claims 1 to 8.

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