Energy recovery device control method, device, energy recovery device and medium

Abstract

The embodiments of the present application disclose a control method, device, energy recovery device and medium for an energy recovery device, which belongs to the field of energy recovery technology. The energy recovery device includes a motor, a power battery and an energy consumption device, the energy consumption device includes at least one energy consumption resistor, and the control method of the energy recovery device includes: responding to the received motor control instruction, switching the state of the motor to the power generation state; obtaining the actual remaining power of the power battery, and the target remaining power of the power battery when the motor is in the power generation state; generating an energy consumption control instruction based on the actual remaining power and the target remaining power; adjusting the operating parameters of the energy consumption resistor in the energy consumption state based on the energy consumption control instruction; updating the operating parameters of the energy consumption resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy consumption resistor. The dynamically adjusted operating parameters of the energy consumption resistor achieve precise control of the recovered power.

Description

Technical Field

[0001] The present application relates to the field of energy recovery technology, and specifically to a control method and device for energy recovery equipment, energy recovery equipment, and a medium. Background Art

[0002] A tensioner is a device used for tensioning transmission lines and installing aerial ropeways. It typically consists of a tension pulley and a tension motor. During commissioning, the tension pulley must actively rotate forward or reverse. The motor's stator generates a rotating magnetic field, driving the rotor. This means the motor is in a power-consuming state, converting electrical energy into mechanical energy. During payout, the tension pulley provides tension. The motor's stator generates a fixed magnetic field, providing holding torque for the rotor. The tension pulley rotates due to the traction force of the payout, driving the motor's rotor to rotate and cut through the stator's magnetic field, generating electricity. This means the motor is in a power-generating state, converting mechanical energy into electrical energy.

[0003] The power generated by the motor during its generating phase is consumed by various electrical components, while any excess power is absorbed by the power battery. Ideally, all excess power generated by the motor would be absorbed by the power battery. However, in actual tension machine energy recovery scenarios, the amount of energy recovered by the power battery and the amount of excess power to be recovered are constantly changing. If the power battery's recovered energy is less than the excess power, a persistent excess power level can easily lead to component overvoltage and thermal runaway, potentially damaging the equipment. Furthermore, when the power battery is fully charged, it stops absorbing energy, further causing a persistent excess power level and potentially damaging the equipment. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a control method, device, energy recovery device and medium for energy recovery equipment, so as to solve the problem in the prior art of equipment damage caused by continuous surplus of electricity.

[0005] To achieve the above objectives, the present application provides, in a first aspect, a method for controlling an energy recovery device. The energy recovery device includes a motor, a power battery, and an energy consumption device. The energy consumption device includes at least one energy consumption resistor. The method for controlling the energy recovery device includes:

[0006] In response to the received motor control command, the motor is switched to a power generation state;

[0007] Obtain the actual remaining power of the power battery and the target remaining power of the power battery when the motor is in the power generation state;

[0008] Generate energy consumption control instructions based on the actual remaining power and the recovery target remaining power;

[0009] Based on the energy consumption control instruction, adjusting the operating parameters of the energy consumption resistor in the energy consumption state;

[0010] The operating parameters of the energy dissipation resistor are updated according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, wherein the surplus current is obtained according to the recovery current of the energy recovery device and the recovery current of the power battery.

[0011] In an embodiment of the present application, the energy dissipation device further includes at least one switching tube, each of which is connected to an energy dissipation resistor;

[0012] Generate energy consumption control instructions based on the actual remaining power and the target remaining power, including:

[0013] When the actual remaining power is greater than the target remaining power, a full power consumption control instruction is generated;

[0014] When the actual remaining power is less than or equal to the target remaining power, a preset power consumption control instruction is generated according to the surplus current, wherein the preset power is less than the full power;

[0015] Based on the energy consumption control instruction, the operating parameters of the energy consumption resistor in the energy consumption state are adjusted, including:

[0016] When the energy consumption control instruction is a full-power energy consumption control instruction, the real-time duty cycle of the switch tube is set to 100% to adjust the operating parameters of the energy consumption resistor in the energy consumption state;

[0017] When the energy consumption control instruction is a preset power energy consumption control instruction, the real-time duty cycle of the switch tube is set to a preset percentage to adjust the operating parameters of the energy consumption resistor in the energy consumption state, wherein the preset percentage is less than 100%.

[0018] In an embodiment of the present application, the energy consumption device further includes a diverter;

[0019] Based on the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, the operating parameters of the energy dissipation resistor are updated, including:

[0020] When the surplus current of the energy recovery device is greater than zero, the real-time duty cycle of the switch tube is updated according to the feedback operating parameters obtained by the shunt to update the operating parameters of the energy dissipation resistor.

[0021] In an embodiment of the present application, after updating the operating parameters of the energy dissipation resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, the method further includes:

[0022] When the feedback operating parameter is less than the surplus current, determining whether the updated real-time duty cycle of the switch tube is 100%;

[0023] When the updated real-time duty cycle of the switch tube is 100%, the torque of the motor is reduced.

[0024] In an embodiment of the present application, the energy dissipation device further includes a heat dissipation device;

[0025] After adjusting the operating parameters of the energy-consuming resistor in the energy-consuming state based on the energy-consuming control instruction, the following steps are also included:

[0026] Control the cooling device to start and obtain the real-time air outlet temperature of the cooling device;

[0027] When the real-time outlet air temperature is greater than or equal to the outlet air temperature upper limit, the torque of the motor is reduced.

[0028] In an embodiment of the present application, the control method of the energy recovery device further includes:

[0029] When the real-time air outlet temperature is lower than the upper limit of the air outlet temperature, the real-time air inlet temperature of the heat dissipation device is obtained;

[0030] When the real-time air outlet temperature is less than or equal to the real-time air inlet temperature, the heat dissipation device is controlled to be turned off.

[0031] In an embodiment of the present application, the control method of the energy recovery device further includes:

[0032] In response to receiving the inventory power adjustment instruction, obtaining the upper limit and the lower limit of the inventory remaining power of the power battery;

[0033] Generate a prompt message based on the actual remaining power, the upper limit of the remaining power in stock, and the lower limit of the remaining power in stock, wherein the prompt message is used to indicate the power level of the power battery in stock;

[0034] When the actual remaining power is greater than or equal to the upper limit of the remaining power in stock, the operating parameters of the energy-consuming resistor in the energy-consuming state are adjusted.

[0035] A second aspect of the present application provides a control device, comprising:

[0036] a memory configured to store instructions;

[0037] The processor is configured to call instructions from the memory and implement the above-mentioned control method of the energy recovery device when executing the instructions.

[0038] A third aspect of the present application provides an energy recovery device, comprising the above-mentioned control device, a motor, a power battery, and an energy consumption device, wherein the energy consumption device comprises at least one energy consumption resistor;

[0039] a motor configured to convert mechanical energy into electrical energy in a generating state;

[0040] The energy dissipation resistor is configured to dissipate heat.

[0041] A fourth aspect of the present application provides a machine-readable storage medium having stored thereon instructions for enabling a machine to execute the above-mentioned control method for the energy recovery device.

[0042] The present application provides a control method for an energy recovery device, the energy recovery device including a motor, a power battery, and an energy consumption device, the energy consumption device including at least one energy consumption resistor, and the control method for the energy recovery device including: switching the state of the motor to a power generation state in response to a received motor control instruction; obtaining the actual remaining power of the power battery and the target remaining power of the power battery when the motor is in the power generation state; generating an energy consumption control instruction based on the actual remaining power and the target remaining power; adjusting the operating parameters of the energy consumption resistor in the energy consumption state based on the energy consumption control instruction; and updating the operating parameters of the energy consumption resistor based on the surplus current of the energy recovery device and the feedback operating parameters of the energy consumption resistor. By adjusting the operating parameters of the energy consumption resistor, the energy consumption resistor generates heat and consumes energy, thereby avoiding damage to the device caused by a continuous surplus of power. In addition, according to the changes in the energy recovered by the power battery and the surplus power, the operating parameters of the energy consumption resistor are dynamically adjusted, thereby dynamically adjusting the changes in the power consumption, thereby achieving precise control of the recovered power and further avoiding damage to the device caused by a continuous surplus of power.

[0043] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present application but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0045] Figure 1 A schematic diagram of a flow chart of a control method for an energy recovery device according to an embodiment of the present application is shown;

[0046] Figure 2 The following schematically shows a structural diagram of an energy recovery device according to an embodiment of the present application;

[0047] Figure 3 The schematic diagram shows the structure of another energy recovery device according to an embodiment of the present application.

[0048] Description of Reference Numerals

[0049] 200-Energy recovery equipment, 210-Control device, 220-Motor, 230-Power battery, 240-Energy consumption device, 250-Other power units, 260-Motor controller; 241-Energy consumption control unit, 242-Energy consumption resistor unit; 2411-Energy consumption controller, 2421-Heat dissipation device, 2422-First temperature measuring device, 2423-Second temperature measuring device, RS-Shunter, Qn-Switch tube, Rn-Energy consumption resistor. DETAILED DESCRIPTION

[0050] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0051] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application are in compliance with the relevant provisions of national laws and regulations. In the embodiments of this application, certain software, components, models, and other existing solutions in the industry may be mentioned. These should be considered as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use such solutions.

[0052] It should be noted that if directional indications are involved in the embodiments of the present application, such directional indications are only used to explain the relative positional relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0054] Figure 1The following schematically shows a flow chart of a control method of an energy recovery device according to an embodiment of the present application. The energy recovery device includes a motor, a power battery and an energy consumption device, and the energy consumption device includes at least one energy consumption resistor. Figure 1 As shown, an embodiment of the present application provides a control method for an energy recovery device, including:

[0055] S110 , responding to the received motor control instruction, switching the state of the motor to a power generation state.

[0056] This embodiment provides an energy recovery device for a tension machine. The energy recovery device includes a motor, a power battery, and an energy dissipation device, the energy dissipation device including at least one energy dissipation resistor. During the energy recovery process, the motor is the power generator, the energy dissipation device is the energy dissipation device, and the power battery is the power supply and energy storage device.

[0057] The tension machine can be set to traction mode and tension mode. When the tension machine is set to traction mode, the motor needs to be switched to power consumption state. When the tension machine is set to tension mode, the motor needs to be switched to power generation state. The type of motor control instruction is set according to actual needs and is not limited here. For ease of understanding, in the embodiment of the present application, the motor control instruction is a tension mode on instruction, and the energy recovery device responds to the received motor control instruction, and the tension machine is set to tension mode. The tension wheel establishes tension, and external forces such as traction force cause the tension wheel to rotate. The stator of the motor generates a fixed magnetic field to enable the rotor to obtain a holding torque. The tension wheel rotates due to the pay-off traction force, and then drives the motor's rotor to rotate and cut the stator magnetic field to generate electricity, that is, the motor is in a power generation state that converts mechanical energy into electrical energy.

[0058] S120 , obtaining the actual remaining power of the power battery and the target remaining power of the power battery to be recovered when the motor is in a power generation state.

[0059] SOC (State of Charge) refers to the ratio of the remaining power of a battery after it has been used for a period of time, or has been left unused for a long time, to the capacity of the battery in a fully charged state. The actual remaining power of the power battery and the target remaining power of the energy recovery device when the motor is in the power generation state are obtained. In this embodiment, the power battery is analyzed by SOC. When the actual SOC value of the power battery is 0, it is determined that the power battery is fully discharged. When the actual SOC value of the power battery is 1, it is determined that the power battery is fully charged. The target remaining power of recovery is the expected power battery recovery power set by the user. The value of the target remaining power of recovery is set according to actual needs and is not limited here.

[0060] S130: Generate an energy consumption control instruction according to the actual remaining power and the recovery target remaining power.

[0061] Due to physical limitations, power batteries have varying charging capacities at different temperatures and voltages, causing the amount of energy recovered by the battery to change dynamically. Based on the actual remaining charge and the target remaining charge, the system analyzes the amount of energy recovered by the battery in real time and generates energy control instructions to consume any excess power, preventing damage to components such as overvoltage and thermal runaway caused by excess charge.

[0062] Specifically, the relationship between the actual remaining power and the target remaining power is determined. If the actual remaining power is greater than the target remaining power, it is determined that the recovered power exceeds the target power to be recovered, and a high-energy consumption control instruction is generated. If the actual remaining power is less than or equal to the target remaining power, it is determined that the recovered power does not exceed the target power to be recovered, and a low-energy consumption control instruction is generated.

[0063] S140: Based on the energy consumption control instruction, adjust the operating parameters of the energy consumption resistor in the energy consumption state.

[0064] The operating parameters of the energy-consuming resistor are set according to actual needs and can be the voltage and current of the energy-consuming resistor, which are not limited here. For ease of understanding, the operating parameter in the embodiments of this application is current. By adjusting the current of the energy-consuming resistor, the energy generated by the energy-consuming resistor is consumed through heat generation.

[0065] Based on the energy consumption control command, the target current of the energy dissipation resistor is determined, and the operating parameters of the energy dissipation resistor in the energy dissipation state are adjusted, that is, the current of the energy dissipation resistor is adjusted to generate heat. Different energy consumption control commands will result in different adjusted operating parameters and, consequently, different amounts of energy consumed, enabling dynamic adjustment of the power battery's recharge capacity.

[0066] S150 , updating the operating parameters of the energy dissipation resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor.

[0067] The process of using the energy-dissipating resistor to consume excess power can determine whether energy balance is achieved based on the surplus current of the energy recovery device. Specifically, when the surplus current is obtained based on the recovery current of the energy recovery device and the recovery current of the power battery, if the surplus current is less than or equal to zero, it is determined that no further energy consumption is required. The operating parameters of the energy-dissipating resistor are updated to 0, that is, no power is consumed when the operating current of the energy-dissipating resistor is zero. When the surplus current is greater than zero, the operating parameters of the energy-dissipating resistor are updated based on the feedback operating parameters of the energy-dissipating resistor to dynamically adjust the recovered power of the power battery.

[0068] It should be understood that for power equipment that uses resistors to consume energy, the resistors are usually always connected and consume energy based on a fixed power. During the operation of the power equipment, since the energy consumption power of the resistor is fixed, if the energy consumption power of the resistor is too low, it is easy for the energy to be continuously surplus and cause damage to the equipment. During the energy recovery process, if the energy consumption power of the resistor is too high, the energy consumption of the resistor will affect the energy recovery efficiency, resulting in energy waste. In this embodiment, by adjusting the operating parameters of the energy-consuming resistor, the energy-consuming resistor is made to generate heat and consume energy, thereby avoiding damage to the equipment due to continuous surplus of electricity. In addition, according to the changes in the energy and surplus electricity of the power battery, the operating parameters of the energy-consuming resistor are dynamically adjusted, and then the changes in the consumed electricity are dynamically adjusted, thereby achieving precise control of the recovered electricity and further avoiding damage to the equipment due to continuous surplus of electricity.

[0069] It should also be understood that the energy recovery device may also include a friction energy dissipation device. When the surplus energy consumption value needs to be adjusted over a large range, the friction energy dissipation device is activated to dissipate energy. When the surplus energy consumption value needs to be precisely adjusted, the energy dissipation device in this embodiment is activated and, based on the energy dissipation control instruction, adjusts the operating parameters of the energy dissipation resistor in the energy dissipation state, thereby precisely adjusting the consumed energy.

[0070] In an embodiment of the present application, the energy dissipation device further includes at least one switching tube, each of which is connected to an energy dissipation resistor;

[0071] Generate energy consumption control instructions based on the actual remaining power and the target remaining power, including:

[0072] When the actual remaining power is greater than the target remaining power, a full power consumption control instruction is generated;

[0073] When the actual remaining power is less than or equal to the target remaining power, a preset power consumption control instruction is generated according to the surplus current, wherein the preset power is less than the full power;

[0074] Based on the energy consumption control instruction, the operating parameters of the energy consumption resistor in the energy consumption state are adjusted, including:

[0075] When the energy consumption control instruction is a full-power energy consumption control instruction, the real-time duty cycle of the switch tube is set to 100% to adjust the operating parameters of the energy consumption resistor in the energy consumption state;

[0076] When the energy consumption control instruction is a preset power energy consumption control instruction, the real-time duty cycle of the switch tube is set to a preset percentage to adjust the operating parameters of the energy consumption resistor in the energy consumption state, wherein the preset percentage is less than 100%.

[0077] In an embodiment of the present application, the energy dissipation device further includes at least one switching tube, each of which is connected to an energy dissipation resistor. By adjusting the duty cycle of the switching tube, the operating parameters of the energy dissipation resistor can be adjusted. When the actual remaining power is greater than the target remaining power to be recovered, it is determined that the recovered power exceeds the target power to be recovered, and a high-energy-consuming full-power energy dissipation control instruction is generated. When the energy dissipation control instruction is a full-power energy dissipation control instruction, the real-time duty cycle of the switching tube is set to 100% to adjust the operating parameters of the energy dissipation resistor in the energy dissipation state, i.e., to adjust the current of the energy dissipation resistor to its maximum value.

[0078] In the case where the actual remaining power is greater than the target remaining power for recovery, it is determined that the recovered power does not exceed the target power that needs to be recovered. The surplus current is obtained based on the recovery current of the energy recovery device and the recovery current of the power battery. Specifically, the recovery current of the energy recovery device in this embodiment includes the system-allowed recovery current and the system-reserve recovery current. The system-allowed recovery current is the maximum recovery current of the power battery requested and set by the user. The energy recovery speed can be adjusted and the size of the recovery current can be controlled by the system-allowed recovery current. The system-reserve recovery current is the energy of the recovery current of the energy recovery device before it leaves the factory, and is used to improve the safety of the energy recovery device to prevent shocks caused by sudden increases in power generation. The recovery current of the power battery includes the available recovery current of the battery and the actual recovery current of the battery. The available recovery current is calculated based on the number of charge and discharge times of the battery, the battery health status, the temperature and the current remaining power. The actual recovery current of the battery is the recovery current of the power battery obtained by measuring sensors and the like during the operation of the power battery.

[0079] The first current and the second current are calculated separately. The first current is BC=E, where E is the first current, B is the actual battery recovery current, and C is the system's allowed recovery current. The second current is D-(AB)=F, where F is the second current, D is the system's reserve recovery current, A is the battery's available recovery current, and B is the battery's actual recovery current. If the first current is greater than zero and the first current is greater than the second current, the first current is determined to be a surplus current. If the second current is greater than zero and the second current is greater than or equal to the first current, the second current is determined to be a surplus current. If both the first current and the second current are less than zero, the surplus current is determined to be zero.

[0080] Based on the surplus current, a low-energy-consuming preset power energy consumption control instruction is generated, wherein the preset power is less than the full power. When the energy consumption control instruction is the preset power energy consumption control instruction, the real-time duty cycle of the switch tube is set to a preset percentage to adjust the operating parameters of the energy-consuming resistor in the energy-consuming state, wherein the preset percentage is less than 100%. The values ​​of the preset power and the preset percentage are set according to actual needs and are not limited here. The values ​​of the preset power and the preset percentage can be set to lower values, so that when the actual remaining power is less than or equal to the recovery target remaining power, the current of the energy-consuming resistor is adjusted to a low current to achieve trickle energy consumption.

[0081] In an embodiment of the present application, the energy consumption device further includes a diverter;

[0082] Based on the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, the operating parameters of the energy dissipation resistor are updated, including:

[0083] When the surplus current of the energy recovery device is greater than zero, the real-time duty cycle of the switch tube is updated according to the feedback operating parameters obtained by the shunt to update the operating parameters of the energy dissipation resistor.

[0084] When the surplus current of the energy recovery device is less than or equal to zero, the real-time duty cycle of the switch tube is directly updated to zero. When the surplus current of the energy recovery device is greater than zero, the real-time duty cycle of the switch tube is updated according to the feedback operating parameters obtained by the shunt to update the operating parameters of the energy consumption resistor. For ease of understanding, PID (Proportional Integral Derivative) control is adopted in the embodiment of the present application to accurately update the real-time duty cycle of the switch tube, thereby achieving precise control of the recovered power. Specifically, the target operating parameters corresponding to the energy consumption control instruction are obtained, the operating parameter error between the target operating parameters and the feedback operating parameters obtained by the shunt is calculated, and the real-time duty cycle of the switch tube is updated according to the operating parameter error.

[0085] In an embodiment of the present application, after updating the operating parameters of the energy dissipation resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, the method further includes:

[0086] When the feedback operating parameter is less than the surplus current, determining whether the updated real-time duty cycle of the switch tube is 100%;

[0087] When the updated real-time duty cycle of the switch tube is 100%, the torque of the motor is reduced.

[0088] In this embodiment, the steps of generating an energy consumption control instruction based on the actual remaining power and the target remaining power for recovery, and adjusting the operating parameters of the energy consumption resistor in the energy consumption state based on the energy consumption control instruction, constitute one operating parameter control cycle. If the feedback operating parameter is greater than or equal to the surplus current, the steps of generating an energy consumption control instruction based on the actual remaining power and the target remaining power for recovery, and adjusting the operating parameters of the energy consumption resistor in the energy consumption state based on the energy consumption control instruction, are performed again to proceed to the next operating parameter control cycle.

[0089] If the feedback operating parameter is less than the surplus current, the updated real-time duty cycle of the switching tube is determined to be 100%, thereby determining whether the operating parameter of the energy dissipation resistor is adjusted to the maximum value. If the updated real-time duty cycle of the switching tube is 100%, the energy dissipation value is determined to be less than the actual energy dissipation value when the current of the energy dissipation resistor is at its maximum value, forcing the motor torque to be reduced, thereby reducing power generation and preventing equipment damage.

[0090] In an embodiment of the present application, the energy dissipation device further includes a heat dissipation device;

[0091] After adjusting the operating parameters of the energy-consuming resistor in the energy-consuming state based on the energy-consuming control instruction, the following steps are also included:

[0092] Control the cooling device to start and obtain the real-time air outlet temperature of the cooling device;

[0093] When the real-time outlet air temperature is greater than or equal to the outlet air temperature upper limit, the torque of the motor is reduced.

[0094] After the switch is turned on, the energy-consuming resistor begins to heat up, controlling the heat sink to turn on and cool the energy-consuming device. The real-time outlet temperature and the upper limit of the outlet temperature of the heat sink are obtained. The upper limit of the outlet temperature is set based on actual needs and is not limited here.

[0095] If the real-time outlet air temperature is greater than or equal to the upper limit, the energy dissipation resistor is determined to be severely overheated, and the motor torque is reduced. As the motor torque decreases, the amount of power generated by the energy recovery device also decreases, which in turn reduces the operating parameters of the energy dissipation resistor to reduce heat generation.

[0096] It should be understood that when the real-time outlet air temperature is greater than or equal to the upper limit of the outlet air temperature, or when the feedback operating parameter is less than the surplus current, an alarm message can also be generated to prompt that the actual energy consumption exceeds the maximum energy consumption value of the energy-consuming resistor, and then the alarm message prompts that the torque of the motor needs to be reduced.

[0097] In an embodiment of the present application, the control method of the energy recovery device further includes:

[0098] When the real-time air outlet temperature is lower than the upper limit of the air outlet temperature, the real-time air inlet temperature of the heat dissipation device is obtained;

[0099] When the real-time air outlet temperature is less than or equal to the real-time air inlet temperature, the heat dissipation device is controlled to be turned off.

[0100] If the real-time outlet air temperature is less than the upper limit of the outlet air temperature, the actual energy consumption requirement is determined to be within the maximum energy consumption of the energy dissipation resistor, and the real-time inlet air temperature of the heat sink is obtained. The relationship between the real-time outlet air temperature and the real-time inlet air temperature is determined. If the real-time outlet air temperature is less than or equal to the real-time inlet air temperature, the heating temperature of the energy dissipation resistor is determined to be low, and the heat sink is controlled to shut down, thereby achieving energy-saving control of the energy recovery device.

[0101] In an embodiment of the present application, the control method of the energy recovery device further includes:

[0102] In response to receiving the inventory power adjustment instruction, obtaining the upper limit and the lower limit of the inventory remaining power of the power battery;

[0103] Generate a prompt message based on the actual remaining power, the upper limit of the remaining power in stock, and the lower limit of the remaining power in stock, wherein the prompt message is used to indicate the power level of the power battery in stock;

[0104] When the actual remaining power is greater than or equal to the upper limit of the remaining power in stock, the operating parameters of the energy-consuming resistor in the energy-consuming state are adjusted.

[0105] When the energy recovery device is not in use and needs to be put into storage, the system receives an inventory power adjustment command and obtains the upper and lower limits of the power battery's remaining power. The system compares the actual remaining power with the upper and lower limits, respectively, and generates a prompt message. The upper and lower limits are set based on actual needs and are not specified here.

[0106] A prompt message indicates the remaining power level of the power battery. Specifically, if the actual remaining power level is less than or equal to the lower limit of the remaining power level, a prompt message indicates that the power battery's remaining power level is too low and charging is required. If the actual remaining power level is greater than the lower limit of the remaining power level but less than the upper limit of the remaining power level, a prompt message indicates that the power battery's remaining power level is normal and the device can be put into storage. If the actual remaining power level is greater than the upper limit of the remaining power level, a prompt message indicates that the power battery's remaining power level is too high and energy consumption is required.

[0107] When the actual remaining power is greater than or equal to the upper limit of the remaining power in the inventory, the operating parameters of the energy-consuming resistor are adjusted. In this embodiment, the operating parameters of the energy-consuming resistor are adjusted to a lower value, thereby consuming energy at a trickle rate. It should be understood that when the actual remaining power is greater than or equal to the upper limit of the remaining power in the inventory, a prompt message can be generated first and then the operating parameters of the energy-consuming resistor are adjusted, or the operating parameters of the energy-consuming resistor can be adjusted first and then the prompt message is generated, and this is not limited here.

[0108] The present application provides a control method for an energy recovery device, the energy recovery device including a motor, a power battery, and an energy consumption device, the energy consumption device including at least one energy consumption resistor, and the control method for the energy recovery device including: switching the state of the motor to a power generation state in response to a received motor control instruction; obtaining the actual remaining power of the power battery and the target remaining power of the power battery when the motor is in the power generation state; generating an energy consumption control instruction based on the actual remaining power and the target remaining power; adjusting the operating parameters of the energy consumption resistor in the energy consumption state based on the energy consumption control instruction; and updating the operating parameters of the energy consumption resistor based on the surplus current of the energy recovery device and the feedback operating parameters of the energy consumption resistor. By adjusting the operating parameters of the energy consumption resistor, the energy consumption resistor generates heat and consumes energy, thereby avoiding damage to the device caused by a continuous surplus of power. In addition, according to the changes in the energy recovered by the power battery and the surplus power, the operating parameters of the energy consumption resistor are dynamically adjusted, thereby dynamically adjusting the changes in the power consumption, thereby achieving precise control of the recovered power and further avoiding damage to the device caused by a continuous surplus of power.

[0109] The present application also provides a control device, including:

[0110] a memory configured to store instructions;

[0111] The processor is configured to call instructions from the memory and implement the above-mentioned control method of the energy recovery device when executing the instructions.

[0112] The processor includes a core, which retrieves the corresponding program unit from the memory. One or more cores can be set, and the problem of excessive power causing device damage in the existing technology can be solved by adjusting the core parameters.

[0113] The 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.

[0114] Figure 2 The schematic diagram shows the structure of an energy recovery device according to an embodiment of the present application.

[0115] The embodiment of the present application further provides an energy recovery device 200, comprising the aforementioned control device 210, a motor 220, a power battery 230, and an energy consumption device 240, wherein the energy consumption device 240 comprises at least one energy consumption resistor Rn;

[0116] a motor 220 configured to convert mechanical energy into electrical energy in a power generation state;

[0117] The energy dissipation resistor Rn is configured to generate heat and dissipate energy.

[0118] During commissioning, motor 220 is in a power-consuming state, converting electrical energy into mechanical energy. During pay-off, the tension pulley provides tension, and motor 220 is in a power-generating state, converting mechanical energy into electrical energy. While motor 220 is in the power-generating state, excess power generated by motor 220 can be recovered by power battery 230. Furthermore, excess power can be consumed by heat dissipation resistor Rn, thereby preventing a persistent excess power situation.

[0119] Figure 3 The schematic diagram shows the structure of another energy recovery device according to an embodiment of the present application.

[0120] In the embodiments of the present application, the energy recovery device 200 also includes other devices. These other devices are configured based on actual needs and are not limited here. For ease of understanding, the other devices in the embodiments of the present application include other power units 250 and motor controller 260. The type of other power units 250 is configured based on actual needs and can be current converters, etc., and is not limited here.

[0121] In addition, in the embodiment of the present application, the energy dissipation device 240 includes an energy dissipation control unit 241 and an energy dissipation resistor unit 242. The energy dissipation control unit 241 includes a shunt RS, an energy dissipation controller 2411, and at least one switching transistor Qn. The energy dissipation resistor unit 242 includes a heat sink 2421, a first temperature measuring device 2422, a second temperature measuring device 2423, and at least one energy dissipation resistor Rn. The number of switching transistors Qn and energy dissipation resistors Rn is the same, and each switching transistor Qn is connected to an energy dissipation resistor Rn. The number of switching transistors Qn and energy dissipation resistors Rn is set according to actual needs and is not limited here. For ease of understanding, three switching transistors Qn and three energy dissipation resistors Rn are shown in the figure.

[0122] The motor controller 260, the power battery 230, the energy consumption control unit 241 and the other power units 250 are all connected to the DC bus. The motor controller 260 is connected to the motor 220, and controls the power battery 230, the motor controller 260, the energy consumption controller 2411 and the other power units 250 to be connected to the control device 210, so that the control device 210 can control the power battery 230, the motor controller 260, the energy consumption controller 2411 and the other power units 250 respectively. Specifically, the motor controller 260 is used to respond to the instructions of the control device 210 and switch the state of the motor 220 to the power generation state. The energy consumption controller 2411 is used to respond to the instructions of the control device 210 and adjust the operating parameters of the energy consumption resistor Rn. When the motor 220 is in the power generation state, the AC power generated by the motor 220 is rectified into DC power, which is consumed by the other power units 250 connected to the DC bus, and the surplus power is absorbed by the power battery 230. At the same time, by adjusting the operating parameters of the energy-consuming resistor Rn, the recovery current of the power battery 230 is adjusted, thereby avoiding damage to the equipment caused by continuous excess power.

[0123] The unit bus of the energy consumption control unit 241 is connected to the DC bus, and a shunt RS is connected in series to the unit bus. The collector of each switching transistor Qn is connected to the shunt RS, and the emitter of each switching transistor Qn is connected to one end of the energy dissipation resistor Rn. The other end of the energy dissipation resistor Rn is connected to the unit bus, thus forming a loop. The heat dissipation device 2421, the first temperature measurement device 2422, and the second temperature measurement device 2423 are all connected to the energy consumption controller 2411. The energy consumption controller 2411 communicates with the control device 210. In response to instructions, the energy consumption controller 2411 controls the on and off of the switching transistors Qn, thereby controlling the operating parameters of the energy dissipation resistor Rn.

[0124] An embodiment of the present application also provides a machine-readable storage medium, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned control method of the energy recovery device.

[0125] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0126] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0127] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0128] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0129] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0130] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0131] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves.

[0132] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0133] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A control method for an energy recovery device, characterized in that: The energy recovery device includes a motor, a power battery, and an energy consumption device. The energy consumption device includes a shunt, at least one switch tube, and at least one energy consumption resistor. Each switch tube is connected to one energy consumption resistor. The control method of the energy recovery device includes: In response to the received motor control instruction, switching the state of the motor to a power generation state; Obtaining an actual remaining charge of the power battery and a target remaining charge of the power battery when the motor is in a power generation state; generating an energy consumption control instruction according to the actual remaining power and the recovery target remaining power; Based on the energy consumption control instruction, adjusting the operating parameters of the energy consumption resistor in the energy consumption state; updating the operating parameters of the energy dissipation resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, wherein the surplus current is obtained according to the recovery current of the energy recovery device and the recovery current of the power battery; The updating of the operating parameters of the energy dissipation resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor includes: When the surplus current of the energy recovery device is greater than zero, updating the real-time duty cycle of the switch tube according to the feedback operating parameter obtained by the shunt, so as to update the operating parameter of the energy dissipation resistor; After updating the operating parameters of the energy dissipation resistor according to the surplus current of the energy recovery device and the feedback operating parameters of the energy dissipation resistor, the method further includes: When the feedback operating parameter is less than the surplus current, determining whether the updated real-time duty cycle of the switch tube is 100%; When the updated real-time duty cycle of the switch tube is 100%, the torque of the motor is reduced.

2. The control method of the energy recovery device according to claim 1, characterized in that: The generating of the energy consumption control instruction according to the actual remaining power and the recovery target remaining power includes: generating a full power consumption control instruction when the actual remaining power is greater than the recovery target remaining power; When the actual remaining power is less than or equal to the target remaining power, generating a preset power consumption control instruction according to the surplus current, wherein the preset power is less than the full power; The adjusting, based on the energy consumption control instruction, the operating parameters of the energy consumption resistor in the energy consumption state includes: When the energy consumption control instruction is the full-power energy consumption control instruction, the real-time duty cycle of the switch tube is set to 100% to adjust the operating parameters of the energy consumption resistor in the energy consumption state; When the energy consumption control instruction is the preset power energy consumption control instruction, the real-time duty cycle of the switch tube is set to a preset percentage to adjust the operating parameters of the energy consumption resistor in the energy consumption state, wherein the preset percentage is less than 100%.

3. The control method of the energy recovery device according to claim 1, characterized in that: The energy consumption device also includes a heat dissipation device; After adjusting the operating parameters of the energy-consuming resistor in the energy-consuming state based on the energy-consuming control instruction, the method further includes: Controlling the cooling device to start, and obtaining the real-time air outlet temperature of the cooling device; When the real-time air outlet temperature is greater than or equal to the upper limit of the air outlet temperature, the torque of the motor is reduced.

4. The control method of the energy recovery device according to claim 3, characterized in that: The control method of the energy recovery device further includes: When the real-time air outlet temperature is less than the upper limit of the air outlet temperature, obtaining the real-time air inlet temperature of the heat dissipation device; When the real-time air outlet temperature is less than or equal to the real-time air inlet temperature, the heat dissipation device is controlled to be closed.

5. The control method of the energy recovery device according to claim 1, characterized in that: The control method of the energy recovery device further includes: In response to receiving the inventory power adjustment instruction, obtaining an upper limit of the remaining power in the inventory and a lower limit of the remaining power in the inventory of the power battery; generating a prompt message according to the actual remaining power, the upper limit of the remaining power in stock, and the lower limit of the remaining power in stock, wherein the prompt message is used to prompt the power level of the power battery in stock; When the actual remaining power is greater than or equal to the upper limit of the inventory remaining power, the operating parameters of the energy consumption resistor in the energy consumption state are adjusted.

6. A control device, characterized in that: include: a memory configured to store instructions; A processor is configured to call the instructions from the memory and implement the control method of the energy recovery device according to any one of claims 1 to 5 when executing the instructions.

7. An energy recovery device, characterized in that: comprising a control device according to claim 6, a motor, a power battery and an energy consumption device, wherein the energy consumption device comprises at least one energy consumption resistor; The motor is configured to convert mechanical energy into electrical energy in a power generation state; The energy dissipation resistor is configured to generate heat and dissipate energy.

8. A machine-readable storage medium, characterized in that The machine-readable storage medium stores instructions, which are used to enable a machine to execute the control method for the energy recovery device according to any one of claims 1 to 5.

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