Stretching system, method of energy flow control thereof, and machine-readable storage medium

Abstract

The application belongs to the technical field of power transmission line erection equipment, and particularly relates to a tensioning system, an energy flow control method thereof and a machine readable storage medium. The tensioning system comprises a plurality of traction devices and a plurality of tension devices, and the traction devices and the tension devices each have a driving power source. Due to different capacities of the driving power sources and different power consumptions of the electric devices, the driving power sources of the electric devices will be in a power shortage state, resulting in a reduced work efficiency of the electric devices. In the application, the energy flow control method is used to determine a power supply device and a power supply device, and the power supply module of the power supply device is controlled to charge the driving power source of the power supply device, so as to increase the power of the driving power source of the power supply device, and then realize reasonable allocation of energy to improve the work efficiency of the tensioning system and achieve the purpose of energy saving and consumption reduction.

Description

Technical Field

[0001] This application belongs to the technical field of transmission line erection equipment, specifically relating to a tensioning system, its energy flow control method, and a machine-readable storage medium. Background Technology

[0002] The erection of power transmission lines is carried out using a tensioning system, which consists of several traction devices and several tensioning devices. During on-site operations, these devices form tension and traction fields located on opposite sides of the work site. The traction devices are used to pull the power transmission line, while the tensioning devices provide tension to keep the line taut.

[0003] In existing technologies, traction and tension equipment located in the same area (traction field or tension field) are powered by the same drive source. Regarding the aforementioned technologies, tension equipment primarily operates under passive tension conditions, while traction equipment primarily operates under active tension conditions. Due to the significant differences in the operating conditions of traction and tension equipment, their energy consumption differs, thus posing a problem in the rational utilization of drive source energy. Summary of the Invention

[0004] The purpose of this application is to provide a tensioning system, its energy flow control method, and a machine-readable storage medium to achieve rational energy utilization.

[0005] To achieve the above objectives, this application provides an energy flow control method for a tensioning system, wherein the tensioning system includes multiple electric devices with driving power supplies, and the multiple electric devices include at least traction devices and / or tensioning devices, and the energy flow control method includes:

[0006] The electric device whose drive power supply is in a depleted state is identified as a device requiring power replenishment.

[0007] Other electric devices, besides the device to be powered, that have a power supply module are identified as power supply devices.

[0008] The power supply module is controlled to charge the drive power supply of the device to be powered.

[0009] In some embodiments, the traction device includes a power generation mechanism, the tensioning device includes an energy recovery mechanism, and the power supply module includes one or more of the drive power supply, the power generation mechanism, and the energy recovery mechanism.

[0010] In some embodiments, controlling the power supply module to charge the drive power supply of the device to be powered includes:

[0011] The power supply of the power supply of the power supply is confirmed to be greater than the first threshold. The power supply of the power supply of the power supply is the power supply module.

[0012] The driving power supply with a power level greater than the first threshold charges the driving power supply of the device to be charged.

[0013] The first threshold is the threshold for determining whether power can be supplied to external systems.

[0014] In some embodiments, determining that the electric device whose drive power supply is in a depleted state is a device requiring power replenishment includes:

[0015] Obtain the power of the drive power supply of the electric device;

[0016] The drive power supply is determined to be in a depleted state if its power level is less than or equal to the second threshold.

[0017] The electric device whose drive power supply is determined to be in a state of depletion is the device that needs to be recharged;

[0018] The second threshold is the threshold for determining the state of power depletion.

[0019] In some embodiments, controlling the power supply module to charge the drive power supply of the device to be powered includes:

[0020] The energy recovery mechanism of the power supply device that is confirmed to have a power level greater than the third threshold and has an energy recovery mechanism is the power supply module;

[0021] Control the energy recovery mechanism to charge the drive power supply of the device to be charged;

[0022] The third threshold is the threshold for determining the fully charged state.

[0023] In some embodiments, controlling the power supply module to charge the drive power supply of the device to be powered includes:

[0024] The power generation mechanism of the power-powered device with the power generation mechanism is confirmed to be the power-powered module;

[0025] Control the power generation mechanism to charge the drive power supply of the equipment to be charged.

[0026] In some embodiments, the energy flow control method further includes:

[0027] It is determined that the equipment to be repaired has an energy recovery mechanism;

[0028] The energy recovery mechanism of the device to be charged charges the drive power supply of the device to be charged.

[0029] In some embodiments, the energy flow control method further includes:

[0030] It is determined that the equipment to be repaired has a power generation mechanism;

[0031] The generator mechanism controls the power generation mechanism of the device to be charged to the drive power supply of the device to be charged.

[0032] A second aspect of this application provides a tensioning system that implements the energy flow control method described above.

[0033] A third aspect of this application provides a machine-readable storage medium storing instructions that cause a machine to perform the energy flow control method described above.

[0034] The energy flow control method for the tension system provided in this application, through the above technical solution, has the following beneficial effects:

[0035] The tensioning system comprises several traction devices and several tensioning devices, each with its own drive power supply. The drive power supplies for the traction devices and tensioning devices can provide power adapted to their respective operating conditions. However, due to differences in the capacity of each drive power supply and the varying power consumption of each electric device, the drive power supplies of different electric devices may exhibit varying power levels, with some even experiencing depletion. This leads to reduced operating efficiency of the electric devices with depleted drive power supplies. In this application, an energy flow control method is used to identify the devices requiring power replenishment and those that can be supplied with power. The power supply modules of the available power supplies are then controlled to charge the drive power supplies of the devices requiring power replenishment, thereby increasing the power supply capacity of the devices requiring power replenishment and achieving a more rational allocation of energy to improve the operating efficiency of the tensioning system.

[0036] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0038] Figure 1 This is a flowchart illustrating the steps of the energy flow control method for the tension system according to a specific embodiment of this application;

[0039] Figure 2 This is a schematic diagram of a small tension field in a small-scale tensioning system according to a specific embodiment of this application;

[0040] Figure 3 This is a schematic diagram of a small traction field for a small tensioning system according to a specific embodiment of this application;

[0041] Figure 4 This is a logical diagram illustrating the energy flow of a small tension system according to a specific embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the large tension field of a large-scale tensioning system according to a specific embodiment of this application;

[0043] Figure 6 This is a schematic diagram of a large traction field for a large tensioning system according to a specific embodiment of this application;

[0044] Figure 7 This is a logical schematic diagram of the energy flow of a large tension system according to a specific embodiment of this application.

[0045] Explanation of reference numerals in the attached figures

[0046] 100. Tension field; 200. Traction field; 10. Tension equipment; 11. Energy recovery mechanism; 20. Traction equipment; 21. Power generation mechanism; 1. Drive power supply; 2. DC bus port; 3. DC charging port; 4. AC charging port; 5. AC discharging port; 6. Power management unit; 7. Controller. Detailed Implementation

[0047] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0048] The terminology of the tension system and its energy flow control method according to this application, as well as the machine-readable storage medium, are described below with reference to the accompanying drawings.

[0049] The tensioning system is used for the erection of power transmission lines and aerial ropeways. The tensioning system includes a tension field 100 and a traction field 200. Both the tension field 100 and the traction field 200 are composed of several tension devices 10, several traction devices 20 and several auxiliary devices. The traction devices 20 are used for traction operations to pull the power transmission line (guide rope / aerial ropeway), and the tension devices 10 provide tension to the power transmission line so that the power transmission line (guide rope / aerial ropeway) is tensioned.

[0050] like Figure 1As shown, a specific embodiment of this application provides an energy flow control method for a tension system. The tension system includes multiple electric devices with a drive power source 1. The multiple electric devices include a traction device 20 and / or a tension device 10. The energy flow control method includes:

[0051] Step S1: Identify the electric device whose drive power supply 1 is in a depleted state as the device to be recharged;

[0052] Step S2: Identify other electric devices, besides the device to be powered, that have a power supply module as power supply devices;

[0053] Step S3: Control the power supply module to charge the drive power supply 1 of the device to be powered.

[0054] As can be seen, in the specific embodiments of this application, each electric device is powered by its own drive power source 1. Each drive power source 1 provides corresponding power according to the actual working conditions of each electric device. Since the energy consumption of each electric device is different, after a long period of operation, the power of the drive power source 1 of some electric devices will be lower than the actual required power, resulting in the drive power source 1 of the electric device being in a state of depletion. Electric devices with drive power source 1 in a state of depletion are devices that need to be recharged. If the drive power source 1 of the devices that need to be recharged is not charged in time, the working efficiency of the devices that need to be recharged will be affected.

[0055] Meanwhile, some electric devices may have a higher power supply 1 than actually required. Among these, electric devices with a power supply module and whose power supply 1 is not in a depleted state are considered power-supplying devices. In this application, an energy flow control method is used to determine the device to be charged and the power-supplying device, and the power supply module of the power-supplying device is controlled to charge the power supply 1 of the device to be charged, thereby increasing the power supply 1 of the device to be charged, and thus achieving a reasonable allocation of energy to improve the operating efficiency of the tensioning system.

[0056] Furthermore, replacing the traditional diesel engine-driven traction device 20 and tension device 10 with an electric motor drive makes energy redistribution easier, reduces noise pollution from the traction system, and electricity, as a new energy source, has the advantages of low pollution and low energy consumption.

[0057] In some embodiments, the traction device 20 includes a power generation mechanism 21, which can directly drive the motor of the traction device 20 or charge the drive power supply 1; the tension device 10 includes an energy recovery mechanism 11. Since the working condition of the tension device 10 is a passive towing condition, the energy recovery mechanism 11 can convert the kinetic energy generated by the passive towing into electrical energy to charge the drive power supply 1.

[0058] In other words, the power supply module includes one or more of the following: drive power supply 1, power generation mechanism 21, and energy recovery mechanism 11. That is, the drive power supply 1 of the power supply device can directly charge the drive power supply 1 of the device to be powered; the power generation mechanism 21 of the power supply device can use the generated electricity to charge the drive power supply 1 of the device to be powered; and the energy recovery mechanism 11 of the power supply device can directly use the recovered electricity to charge the drive power supply 1 of the device to be powered.

[0059] As can be seen, in the specific embodiments of this application, there are multiple parallel energy distribution schemes to achieve energy sharing of the entire tension system, thereby realizing the rational use of energy and reducing energy consumption.

[0060] Furthermore, since the energy recovery mechanism 11 of the tension device 10 recovers too much energy, and the capacity of the drive power supply 1 of the tension device 10 is limited, the excess energy needs to be processed ineffectively. Therefore, by sharing the energy of the tension system, the energy recovered by the energy recovery mechanism 11 can be utilized to the maximum extent, thereby improving the energy utilization rate and achieving the goal of energy saving and consumption reduction.

[0061] The specific working principles of the power generation mechanism 21 and the energy recovery mechanism 11 are well known to those skilled in the art and are not part of the core improvements of this application, so they will not be described in detail here. It should also be noted that the charging methods of the drive power supply 1-drive power supply 1, the power generation mechanism 21-drive power supply 1, and the energy recovery mechanism 11-drive power supply 1 are all based on the tension system using drive power supply 1 and motor drive. Currently, only by using electrical energy as the main energy source can the mutual transfer of energy be realized.

[0062] In some implementations, step S1 includes:

[0063] Step S11: Obtain the power of the drive power supply 1 of the electric device;

[0064] Step S12: Determine that the drive power supply 1 with a power level less than or equal to the second threshold is in a depleted state;

[0065] Step S13: Determine that the electric device whose drive power supply 1 is in a depleted state is the device that needs to be recharged;

[0066] The second threshold is the threshold for determining the state of power depletion.

[0067] In some implementations, step S2 includes:

[0068] Step S21: Determine that the drive power supply 1 with a power level greater than the second threshold is in a normal state;

[0069] Step S22: Confirm that the electric device with a power supply module is in a normal state and that the drive power supply 1 is in a normal state.

[0070] Step S23: Determine that the electric device with the drive power supply 1 in normal condition and the electric device with a power supply module is a power supply device.

[0071] Steps S1 and S2 can determine the power-available equipment and the equipment to be charged in the tensioning system, and the power-available equipment has one or more of the drive power supply 1, the power generation mechanism 21 and the energy recovery mechanism 11, but it is not certain which one or more of the drive power supply 1, the power generation mechanism 21 and the energy recovery mechanism 11 will be charged and the charging priority.

[0072] In order to determine the specific power-available module, in some implementations, step S3 includes:

[0073] Step S31: Confirm that the power supply 1 of the power supply 1 is a power supply module for powerable devices whose power supply 1 is greater than the first threshold.

[0074] Step S32: Control the drive power supply 1 with a power level greater than the first threshold to charge the drive power supply 1 of the device to be charged.

[0075] Specifically, steps S31 and S32 are specific steps to determine whether the drive power supply 1 of the powerable device can be used as a powerable module. The first threshold is a threshold for determining whether it can supply power to the outside. In other words, if the power of the drive power supply 1 of the powerable device is less than or equal to the first threshold, the drive power supply 1 can only maintain the normal operation of the powerable device. Only when the power of the drive power supply 1 of the powerable device is greater than the first threshold can the drive power supply 1 maintain the normal operation of the powerable device and also transmit the excess power to the drive power supply 1 of the device to be powered. It can be seen that the energy flow control method of this application will not affect the normal operation of the powerable device and has high rationality.

[0076] In some implementations, step S3 includes:

[0077] Step S31': Confirm that the power of the drive power supply 1 is greater than the third threshold and that the energy recovery mechanism 11 of the powerable device is a powerable module;

[0078] Step S32': Control the energy recovery mechanism 11 to charge the drive power supply 1 of the equipment to be charged.

[0079] Specifically, steps S31' and S32' are specific steps to determine whether the energy recovery mechanism 11 of the powerable device with the energy recovery mechanism 11 can be used as a powerable module. The third threshold is a full-charge state determination threshold. In other words, if the power of the drive power supply 1 of the powerable device with the energy recovery mechanism 11 is less than or equal to the third threshold, the drive power supply 1 cannot reach a full-charge state. Only when the power of the drive power supply 1 of the powerable device with the energy recovery mechanism 11 is greater than the third threshold can the drive power supply 1 reach a full-charge state. As a result, the electrical energy generated by the energy recovery mechanism 11 cannot continue to charge the drive power supply 1, and the excess electrical energy is transferred to the drive power supply 1 of the device to be charged. It can be seen that the energy flow control method of this application prioritizes the recovery of electrical energy generated by the energy recovery mechanism 11 of the powerable device with the energy recovery mechanism 11 to the drive power supply 1 of the powerable device, which has high rationality.

[0080] In some implementations, controlling the power supply module to charge the drive power supply 1 of the device to be powered includes:

[0081] Step S31”: Confirm that the power generation mechanism 21 of the power-generating device with power generation mechanism 21 is a power-generating module;

[0082] Step S32”: Control the power generation mechanism 21 to charge the drive power supply 1 of the equipment to be charged.

[0083] In fact, the available energy in the entire tensioning system is continuously reduced as the electric equipment operates, while the power generation mechanism 21 can increase the available energy in the tensioning system. It can be seen that the energy flow control method of this application can supplement energy to maintain the normal operation of the tensioning system when the available energy in the entire tensioning system is insufficient.

[0084] The above three power supply modules can charge the drive power supply 1 of the device to be charged individually or simultaneously.

[0085] In addition to the above-mentioned method of charging the drive power supply 1 of the device to be charged through the power supply module of the power supply device, in some embodiments, the energy flow control method further includes: determining that the device to be charged has an energy recovery mechanism 11, and controlling the energy recovery mechanism 11 of the device to be charged to the drive power supply 1 of the device to be charged; determining that the device to be charged has a power generation mechanism 21, and controlling the power generation mechanism 21 of the device to be charged to the drive power supply 1 of the device to be charged.

[0086] Specifically, the energy recovery mechanism 11 of the device to be charged continuously charges the drive power source 1 of the device to be charged, and the power generation mechanism 21 of the device to be charged continuously charges the drive power source 1 of the device to be charged. In other words, both the energy recovery mechanism 11 and the power generation mechanism 21 have self-charging functions. It can be seen that the energy flow control method of this application can realize the mutual energy replenishment of multiple electric devices and the self-replenishment of electric devices, which has high practicality.

[0087] Preferably, the various implementation methods of step S3 and the self-charging method of the electric equipment are all prioritized to increase the rationality of the energy flow control method. Furthermore, reasonably setting the priority of each implementation method is also conducive to the automatic execution of the energy flow control method, thereby improving the automation level of the tension system. The priorities are explained below, wherein the electric equipment with the energy recovery mechanism 11 is the tension device 10, and the electric equipment with the power generation mechanism 21 is the traction device 20.

[0088] First, compare the power of the drive power supply 1 of each tension device 10 with the third threshold. If there is a tension device 10 whose drive power supply 1 power is greater than or equal to the third threshold, the energy recovery mechanism 11 of the tension device 10 will recover energy to replenish the drive power supply 1 of the device to be replenished.

[0089] Secondly, when there is no tension device 10 with a power supply 1 greater than or equal to the third threshold, the power supply 1 of each powerable device is compared with the second threshold. If there is a powerable device with a power supply 1 greater than the second threshold, the power supply 1 of that powerable device charges the power supply 1 of the device to be charged.

[0090] Finally, when there is no power-available device with a power level greater than the second threshold, the generator 21 is activated to charge the power supply 1 of the device to be charged.

[0091] In specific embodiments of this application, a first threshold is mentioned as a threshold for determining whether power can be supplied externally, a second threshold is mentioned as a threshold for determining whether the power is low, and a third threshold is mentioned as a threshold for determining whether the power is full. The third threshold is greater than the first threshold, and the second threshold is less than the first threshold. The second threshold is used to determine the equipment to be charged, the third threshold is used to determine whether the energy recovery mechanism 11 of the tensioning device 10 can charge the equipment to be charged, and the first threshold is used to determine whether the drive power supply 1 with a higher power level of the equipment to be supplied can charge the equipment to be charged. This realizes the energy flow control of each electric device in the traction system, thereby realizing the rational utilization and distribution of energy to improve the operating efficiency of the tensioning system.

[0092] like Figures 2 to 4As shown, a specific embodiment of this application also provides a tensioning system that implements the above-described energy flow control method. Since the tensioning system adopts all embodiments of the energy flow control method, it has all the beneficial effects brought about by the energy flow control method.

[0093] In some implementations, the tensioning system includes a power management module that is electrically connected to and configured to:

[0094] The electric equipment whose drive power supply 1 is in a state of depletion is identified as the equipment to be recharged;

[0095] Other electric devices, besides the equipment to be powered, that have a power supply module are identified as power-supplyable devices.

[0096] The control module can charge the drive power supply 1 of the device to be powered.

[0097] Preferably, the power management module is configured as follows:

[0098] Obtain the power of the drive power supply 1 of the electric equipment;

[0099] The drive power supply 1 with a power level less than or equal to the second threshold is determined to be in a depleted state.

[0100] Electric devices whose drive power supply 1 is in a state of depletion are identified as devices that need to be recharged.

[0101] Preferably, the power management module is configured as follows:

[0102] The drive power supply 1 with a charge level greater than the second threshold is determined to be in normal condition;

[0103] The electric equipment that confirms the drive power supply 1 is in a normal state has a power supply module;

[0104] Electric devices that are determined to have a normal driving power supply 1 and have a power supply module are considered to be powerable devices.

[0105] Preferably, the power management module is configured as follows:

[0106] The power supply 1 of the power supply 1 of the power supply device is confirmed to be a power supply module if the power of the power supply 1 is greater than the first threshold.

[0107] The drive power supply 1 with a power level greater than the first threshold charges the drive power supply 1 of the device to be charged.

[0108] Preferably, the power management module is configured as follows:

[0109] Confirm that the power of the drive power supply 1 is greater than the third threshold and that the energy recovery mechanism 11 of the powerable device is a powerable module.

[0110] The energy recovery mechanism 11 is controlled to charge the drive power supply 1 of the equipment to be charged.

[0111] Preferably, the power management module is configured as follows:

[0112] The power generation mechanism 21 of the power generation device with power generation mechanism 21 is confirmed to be a power supply module;

[0113] The control generator 21 charges the drive power supply 1 of the equipment to be charged.

[0114] Preferably, the power management module is configured as follows:

[0115] It is determined that the equipment to be repaired has an energy recovery mechanism 11, and the energy recovery mechanism 11 of the equipment to be repaired is controlled to charge the drive power supply 1 of the equipment to be repaired.

[0116] Preferably, the power management module is configured as follows:

[0117] It is determined that the equipment to be repaired has a power generation mechanism 21, and the power generation mechanism 21 of the equipment to be repaired is controlled to charge the drive power supply 1 of the equipment to be repaired.

[0118] In this application, the above-mentioned energy flow control method is implemented by setting a power management module, thereby realizing the automation of energy distribution within the traction system. The first threshold, the second threshold, and the third threshold can be preset, and the judgment conditions for the execution of each step are set to distinguish the priority of each step.

[0119] In some embodiments, multiple electric devices each have a DC bus port 2, and the multiple DC bus ports 2 are interconnected, so that the power supply module can charge the drive power supply 1 of other electric devices through the DC bus port 2.

[0120] Specifically, the power supply 1 of the power-supplying device charges the power supply 1 of the device to be powered through the DC bus port 2; the energy recovery mechanism 11 of the power-supplying device charges the power supply 1 of the device to be powered through the DC bus port 2; and the power generation mechanism 21 of the power-supplying device charges the power supply 1 of the device to be powered through the DC bus port 2.

[0121] Furthermore, each electric device is equipped with a DC bus port 2, which can be connected to the DC bus ports 2 of different electric devices as needed to achieve energy sharing. In other words, during actual construction operations, if the traction field 200 and the tension field 100 are far apart, only the traction device 20 and tension device 10 within the same traction field 200 or only the traction device 20 and tension device 10 within the same tension field 100 can be connected, thereby achieving energy sharing among the electric devices within the traction field 200 or the tension field 100, and thus improving the practicality of the traction system.

[0122] Preferably, a DC / DC transformer is connected between the power supply module and the DC bus port 2. Since the power supply 1 of different electric devices has different charge, the voltage of the power supply 1 of different electric devices is also different. When using the power supply 1 of the power supply device as the power supply module to charge the power supply 1 of the device to be charged, the voltage is made the same by setting up a DC / DC transformer, thereby avoiding damage to the power supply 1 and improving the practicality of the tensioning system.

[0123] In some embodiments, both the tension device 10 and the traction device 20 have a DC charging port 3, and the tension system also includes a DC charging device that can be connected to the DC charging port 3, which charges the drive power supply 1 through the DC charging port 3; both the tension device 10 and the traction device 20 have an AC charging port 4, and the tension system also includes an AC charging device that can be connected to the AC charging port 4, which charges the drive power supply 1 through the AC charging port 4.

[0124] In reality, the energy of the entire tensioning system continuously decreases during operation. In other words, if no external energy is supplied to the tensioning system, the drive power supply 1 of each electric device will be in a depleted state. Although the traction equipment 20 includes a power generation mechanism 21 capable of generating electricity, the power generation efficiency of the power generation mechanism 21 is low and it causes environmental pollution. Therefore, a DC charging port 3 is provided to connect to a DC charging device, and an AC charging port 4 is provided to connect to an AC charging device, thereby charging the drive power supply 1 of each electric device.

[0125] However, the installation of AC and DC charging equipment is limited by site conditions, and in most cases, the conditions for installation are not available. Therefore, energy sharing among the electric equipment in the tension system through DC bus port 2 is highly practical and economical, and is applicable to all site conditions.

[0126] In some embodiments, both the tensioning device 10 and the traction device 20 have an AC discharge port 5. The tensioning system also includes accessory devices that can be connected to the AC discharge port 5. The drive power supply 1 discharges to the accessory devices through the AC discharge port 5. The accessory devices include wire pressing machines, lighting equipment, etc.

[0127] Preferably, the power management module includes a power management unit 6, a manual controller, and controllers 7 respectively installed on each electric device. All controllers 7 on the electric devices and the drive power supply 1 are communicatively connected to the power management unit 6. The manual controller 7 is used to manually adjust the controllers 7 on each electric device to intervene in the automatic control mode of the power management unit 6.

[0128] Specifically, the controller 7 on the tension device 10 is used to control the opening and closing of the energy recovery mechanism 11, DC bus port 2, DC charging port 3, AC charging port 4 and AC discharging port 5; the controller 7 on the traction device 20 is used to control the opening and closing of the power generation mechanism 21, DC bus port 2, DC charging port 3, AC charging port 4 and AC discharging port 5.

[0129] Depending on the number of tension devices 10 and traction devices 20 in the tension field 100 and traction field 200, the tensioning system is divided into a small tensioning system and a large tensioning system.

[0130] like Figures 2 to 4 As shown, the small tension system includes a small tension field 100 and a small traction field 200.

[0131] like Figures 5 to 7 As shown, the large tension system includes a large tension field 100 and a large traction field 200.

[0132] Those skilled in the art will understand that the small tensioning system and the large tensioning system are not limited to the arrangement and number of tensioning devices 10 and traction devices 20 shown in the figure, and can be adjusted according to actual needs.

[0133] A specific embodiment of this application also provides a machine-readable storage medium storing instructions that cause a machine to execute the energy flow control method described above. The machine-readable storage medium can be directly installed in a traction system for use.

[0134] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0135] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1A device that provides the functions specified in one or more boxes.

[0136] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0137] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0138] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0139] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, like read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0140] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, 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 technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0141] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0142] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0143] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0144] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for controlling the energy flow of a tension system, characterized in that, The tensioning system includes multiple electric devices with a drive power source (1), the multiple electric devices including traction devices (20) and / or tension devices (10), and the energy flow control method includes: The electric device whose drive power supply (1) is in a depleted state is identified as a device to be recharged; Other electric devices, besides the device to be powered, that have a power supply module are identified as power supply devices. Control the power supply module to charge the drive power supply (1) of the device to be powered; The power supply module includes the drive power supply (1), the power generation mechanism (21), and the energy recovery mechanism (11). The control of the power supply module to charge the drive power supply (1) of the device to be powered includes: If the power of the driving power supply (1) of the power supply device is confirmed to be greater than the first threshold, the driving power supply (1) of the power supply device is confirmed to be the power supply module, and the driving power supply (1) of the power supply device is confirmed to be greater than the first threshold to charge the driving power supply (1) of the power supply device to be charged. The first threshold is the threshold for determining that the power supply can be supplied to the outside; and / or, if the power of the driving power supply (1) of the power supply device is confirmed to be greater than the third threshold and the energy recovery mechanism (11) of the power supply device is confirmed to be the power supply module, the energy recovery mechanism (11) of the power supply device is confirmed to be greater than the third threshold to charge the driving power supply (1) of the power supply device to be charged. The third threshold is the threshold for determining that the power supply is fully charged; and / or, if the power generation mechanism (21) of the power supply device is confirmed to be the power supply module, the power generation mechanism (21) of the power supply device is confirmed to be the power supply module, and the power generation mechanism (21) of the power supply device is confirmed to be the power supply module to charge the driving power supply (1) of the power supply device to be charged.

2. The energy flow control method for the tension system according to claim 1, characterized in that, The traction device (20) includes a power generation mechanism (21), and the tension device (10) includes an energy recovery mechanism (11).

3. The energy flow control method for the tension system according to claim 1, characterized in that, The step of determining that the electric device whose drive power supply (1) is in a depleted state is a device in need of power replenishment includes: Obtain the power of the drive power supply (1) of the electric device; The driving power supply (1) is determined to be in a depleted state when its power level is less than or equal to the second threshold. The electric device whose drive power supply (1) is in a depleted state is the device to be recharged; The second threshold is the threshold for determining the state of power depletion.

4. The energy flow control method for the tension system according to claim 1, characterized in that, The energy flow control method further includes: It is determined that the equipment to be replenished has an energy recovery mechanism (11). The energy recovery mechanism (11) of the device to be charged charges the drive power supply (1) of the device to be charged.

5. The energy flow control method for the tension system according to claim 1, characterized in that, The energy flow control method further includes: It is determined that the equipment to be supplied with electricity has a power generation mechanism (21). The power generation mechanism (21) of the device to be charged charges the drive power supply (1) of the device to be charged.

6. A tensioning system, characterized in that, The tensioning system implements the energy flow control method for the tensioning system according to any one of claims 1 to 5.

7. A machine-readable storage medium, characterized in that, The machine-readable storage medium stores instructions for causing the machine to perform the energy flow control method for the tension system according to any one of claims 1 to 5.

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