Distraction system

Abstract

The invention belongs to the technical field of power transmission line erection equipment, and particularly relates to a stretching system. The stretching system comprises a plurality of traction devices and a plurality of tension devices, the traction devices and the tension devices are each provided with a driving power source, due to the fact that the capacities of the driving power sources are different and the power consumption of the electric devices is different, the driving power sources of the electric devices can have different electric quantity conditions, and even part of the driving power sources can have a power lack state. Therefore, the operation efficiency of the electric equipment with the driving power supply in the power-deficient state is reduced. In the application, mutual charging is realized through the power supply modules of the electric devices, so that energy sharing of the electric devices in the stretching system is realized, the electric devices can maintain normal operation efficiency for a long time, reasonable utilization of energy is further realized, the operation efficiency of the stretching system is improved, and the purposes of saving energy and reducing consumption are achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of power transmission line erection equipment, and specifically relates to a tensioning system. Background Art

[0002] The transmission line erection adopts the tensioning system, which is composed of several traction equipment and several tension equipment. During the on-site operation, several traction equipment and several tension equipment will form a tension field and a traction field located on both sides of the operation site. Among them, the traction equipment is used for traction operation to pull the transmission line, and the tension equipment provides tension for the transmission line to make the transmission line stressed and stretched.

[0003] In the prior art, the traction equipment and tension equipment located in the same field (traction field or tension field) are driven by the same driving source. With respect to the above-mentioned related technologies, the tension equipment is mainly in the passive tension working condition, while the traction equipment is mainly in the active tension working condition. Since the working conditions of the traction equipment and the tension equipment are quite different, the energy consumption of the traction equipment and the tension equipment is different, so there are problems in the reasonable use of the driving source energy. Summary of the invention

[0004] The purpose of this application is to provide a tensioning system to achieve rational utilization of energy.

[0005] In order to achieve the above-mentioned objectives, the present application provides a tensioning system on the one hand, comprising multiple electric devices with driving power supplies, the multiple electric devices including traction devices and / or tension devices, at least one of the electric devices having a power supply module, and the power supply module of the electric device can charge the driving power supplies of other electric devices.

[0006] In some embodiments, the stretching system further includes a power management module, which is electrically connected to the plurality of electric devices and configured as follows:

[0007] Comparing the power amounts of the driving power supplies of the electric devices;

[0008] The power supply module of the electric device with a higher power of the driving power supply is controlled to charge the driving power supply of the electric device with a lower power of the driving power supply.

[0009] In some embodiments, the power supply module includes a driving power source with a power supply amount greater than a threshold for determining whether external power supply is possible.

[0010] In some embodiments, the traction device includes a power generation mechanism, and the power supply module includes the power generation mechanism.

[0011] In some embodiments, the tension device includes an energy recovery mechanism for recovering its own kinetic energy and converting it into electrical energy, and the power supply module includes the energy recovery mechanism.

[0012] In some embodiments, each of the plurality of electric devices has a DC bus port, and the power supply module charges the driving power supplies of other electric devices through the DC bus port.

[0013] In some embodiments, a DC / DC transformer is connected between the power supply module and the DC bus port.

[0014] In some embodiments, the tension device and the traction device both have a DC charging port, and the tensioning system further includes a DC charging device that can be connected to the DC charging port, and the DC charging device charges the driving power supply through the DC charging port.

[0015] In some embodiments, the tension device and the traction device both have an AC charging port, and the tensioning system further includes an AC charging device that can be connected to the AC charging port, and the AC charging device charges the driving power supply through the AC charging port.

[0016] In some embodiments, the tension device and the traction device both have an AC discharge port, the tensioning system further includes an accessory device that can be connected to the AC discharge port, and the driving power source discharges to the accessory device through the AC discharge port.

[0017] Through the above technical solution, the stretching system provided by the present application has the following beneficial effects:

[0018] The tensioning system includes several traction devices and several tensioning devices. The traction devices and the tensioning devices are each equipped with a driving power supply. The driving power supply of the traction device can provide adaptive power according to the working conditions of the traction device. The driving power supply of the tensioning device can provide adaptive power according to the working conditions of the tensioning device. Due to the different capacities of the driving power supplies and the different power consumption of the electric devices, the driving power supplies of the electric devices will have different power conditions, and even some of the driving power supplies will be in a power-deficient state, resulting in a decrease in the operating efficiency of the electric devices whose driving power supplies are in a power-deficient state. In the present application, mutual charging is achieved through the power supply modules of the electric devices, thereby realizing energy sharing among the electric devices in the tensioning system, so that each electric device can maintain normal operating efficiency for a long time, thereby realizing the rational use of energy to improve the operating efficiency of the tensioning system.

[0019] 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

[0020] 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 specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0021] Figure 1 It is a schematic diagram of a small tension field of a small tensioning system according to a specific embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of a small traction field of a small traction system according to a specific embodiment of the present application;

[0023] Figure 3 It is a logical schematic diagram of the energy flow of a small-scale stretching system according to a specific embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of a large tension field of a large tensioning system according to a specific embodiment of the present application;

[0025] Figure 5 It is a schematic diagram of a large traction field of a large traction system according to a specific embodiment of the present application;

[0026] Figure 6 It is a logical schematic diagram of energy flow of a large-scale stretching system according to a specific embodiment of the present application;

[0027] Figure 7 It is a step diagram of the energy flow control method of the tensioning system according to a specific embodiment of the present application.

[0028] Description of Reference Numerals

[0029] 100. Tension field; 200. Traction field; 10. Tension equipment; 11. Energy recovery mechanism; 20. Traction equipment; 21. Power generation mechanism; 1. Driving power supply; 2. DC bus port; 3. DC charging port; 4. AC charging port; 5. AC discharge port; 6. Power management unit; 7. Controller. DETAILED DESCRIPTION

[0030] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0031] The following describes the term part of the distraction system according to the present application with reference to the accompanying drawings.

[0032] like Figures 1 to 3As shown, a specific embodiment of the present application provides a tensioning system, which includes multiple electric devices with a driving power source 1, the multiple electric devices include a traction device 20 and / or a tension device 10, and at least one electric device has a power supply module, which can charge the driving power source 1 of other electric devices.

[0033] Specifically, the tensioning system includes a tension field 100 and a traction field 200, and the traction field 200 and the tensioning field 100 both include a plurality of traction devices 20 and a plurality of tension devices 10, wherein the traction device 20 is used for traction operations to pull the transmission line (guide rope / aerial cableway), and the tension device 10 provides tension for the transmission line so that the transmission line (guide rope / aerial cableway) is tensioned. Since the actual operating conditions of the traction device 20 and the tensioning device 10 are completely different, and their respective driving power supplies 1 will provide corresponding power according to their respective actual operating conditions, after a long period of operation, the power of the driving power supply 1 of some electric devices will be lower than the actual required power, thereby affecting the operating efficiency of the electric device. In the present application, when there is an electric device with a low power of the driving power supply 1 in the tensioning system, the power supply module of other electric devices can charge the driving power supply 1 of the electric device, thereby ensuring that the electric device can work normally, thereby realizing the reasonable allocation and utilization of energy in the tensioning system to improve the operating efficiency of the tensioning system.

[0034] Furthermore, the traction device 20 includes a power generating mechanism 21, the tension device 10 includes an energy recovery mechanism 11, and the power supply module can be one or more of the power generating mechanism 21, the energy recovery mechanism 11 and the driving power supply 1, that is, the driving power supply 1 of the power supply device can directly charge the driving power supply 1 of the device to be powered, the power generating mechanism 21 of the power supply device can use the generated electric energy to charge the driving 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 electric energy to charge the driving power supply 1 of the device to be powered.

[0035] It can be seen that in the specific embodiment of the present application, there are multiple parallel energy distribution schemes to achieve energy sharing of the entire stretching system, thereby achieving reasonable utilization of energy and reducing energy consumption;

[0036] Furthermore, since the energy recovery mechanism 11 of the tension device 10 recovers too much energy and the capacity of the driving power supply 1 of the tension device 10 is limited, the excess energy needs to be processed ineffectively. Therefore, the energy recovery mechanism 11 is utilized to the maximum extent possible through energy sharing of the tensioning system, thereby improving energy utilization and achieving the purpose of energy saving and consumption reduction.

[0037] As for the specific working principles of the power generation mechanism 21 and the energy recovery mechanism 11, they are well known to those skilled in the art and are not part of the core improvement of this application, so they will not be described here. It should also be noted that the charging method of the driving power supply 1-driving power supply 1, the power generation mechanism 21-driving power supply 1, and the energy recovery mechanism 11-driving power supply 1 is based on the tensioning system using the driving power supply 1 and the motor drive method. At present, only when electric energy is used as the main energy form can the mutual transmission of energy be realized.

[0038] The specific energy distribution plan needs to be determined through a series of power determinations on the driving power supply 1.

[0039] In some embodiments, the tensioning system further includes a power management module, which is electrically connected to the plurality of electric devices. The power management module is used to determine the direction of energy flow, thereby achieving automation of energy sharing within the tensioning system.

[0040] Specifically, the power management module is configured as follows:

[0041] Compare the power levels of the driving power sources 1 of the various electric devices;

[0042] The power supply module of the electric device with a higher power of the driving power supply 1 is controlled to charge the driving power supply 1 of the electric device with a lower power of the driving power supply 1 .

[0043] Only considering the amount of power in the driving power supply 1 of each electric device cannot achieve the best effect in improving the operating efficiency of the tensioning system. In fact, due to the different operating conditions of each electric device, the amount of power required to maintain the operating efficiency of each electric device is also different. Therefore, it is possible that the driving power supply 1 of an electric device with a larger amount of power cannot maintain the operating efficiency of the electric device. If its own operating efficiency cannot be maintained, it cannot provide energy for other electric devices.

[0044] Preferably, the power management module is configured as follows:

[0045] Determine that the electric device whose driving power source 1 is in a power-deficient state is a device to be powered up;

[0046] Determine that other electric devices with power supply modules other than the device to be powered are power supply devices;

[0047] The power supply module is controlled to charge the driving power supply 1 of the device to be powered.

[0048] Through the above judgment, the device to be powered and the device that can be powered can be determined. The driving power supply 1 of the device that can be powered is not in a power-deficient state. The driving power supply 1 of the device to be powered is charged by the power supply module of the device that can be powered to restore the operating efficiency of the device to be powered, thereby improving the operating efficiency of the tensioning system.

[0049] Specifically, the power management module is configured as follows:

[0050] Determining that the driving power supply 1 whose power is less than or equal to the second threshold is in a power-deficient state;

[0051] The electric device whose driving power source 1 is determined to be in a power-deficient state is a device to be powered up.

[0052] Furthermore, the power management module is configured as follows:

[0053] Determining that the driving power supply 1 with a power level greater than a second threshold is in a normal state;

[0054] Confirm that the electric device with the driving power supply 1 in a normal state has a power supply module;

[0055] It is determined that the electric device whose driving power source 1 is in a normal state and has a power supply module is a power supply device.

[0056] Among them, the second threshold is the threshold for determining the low-power state. The value of the second threshold of each electric device may be different, but the meaning of the second threshold of each electric device is the same, that is, the driving power supply 1 with a power level less than or equal to the second threshold is in a low-power state, and the driving power supply 1 with a power level greater than the second threshold is in a normal state.

[0057] Preferably, the power management module is configured as follows:

[0058] Confirm that the driving power source 1 of the power-supply-capable device whose power supply amount is greater than the first threshold is a power-supply-capable module;

[0059] The driving power source 1 whose power level is greater than the first threshold is controlled to charge the driving power source 1 of the device to be powered.

[0060] Among them, the first threshold is the threshold for determining whether external power supply can be provided. In other words, if the power of the driving power supply 1 of the power-supply device is less than or equal to the first threshold, the driving power supply 1 can only maintain the normal operation of the power-supply device. Only if the power of the driving power supply 1 of the power-supply device is greater than the first threshold can the driving power supply 1 not only maintain the normal operation of the power-supply device, but also transmit the excess power to the driving power supply 1 of the device to be powered. It can be seen that the energy distribution in the tensioning system of the present application is reasonable and will not affect the normal operation of the power-supply device.

[0061] Preferably, the power management module is configured as follows:

[0062] Confirm that the power of the driving power source 1 is greater than a third threshold value and that the energy recovery mechanism 11 of the power supply device having the energy recovery mechanism 11 is a power supply module;

[0063] The energy recovery mechanism 11 is controlled to charge the driving power source 1 of the device to be powered.

[0064] Among them, the third threshold is the full-charge state judgment threshold. In other words, if the power of the driving power supply 1 of the power-supply device with the energy recovery mechanism 11 is less than or equal to the third threshold, the driving power supply 1 cannot reach the full-charge state. Only when the power of the driving power supply 1 of the power-supply device with the energy recovery mechanism 11 is greater than the third threshold, the driving power supply 1 reaches the full-charge state, so that the electric energy generated by the energy recovery mechanism 11 can no longer continue to charge the driving power supply 1 and the excess electric energy is transmitted to the driving power supply 1 of the device to be powered. It can be seen that the tensioning system of the present application preferentially recovers the electric energy generated by the energy recovery mechanism 11 of the power-supply device with the energy recovery mechanism 11 into the driving power supply 1 of the power-supply device, which is highly reasonable.

[0065] Preferably, the power management module is configured as follows:

[0066] Confirm that the power generation mechanism 21 of the power supply device having the power generation mechanism 21 is a power supply module;

[0067] The power generation mechanism 21 is controlled to charge the driving power source 1 of the device to be powered.

[0068] In fact, the available energy in the entire tensioning system continues to decrease 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 when the available energy of the tensioning system of the present application is insufficient, the power generation mechanism 21 can supplement energy to maintain the normal operation of the tensioning system.

[0069] The type of the power supply module of the power supply device can be determined through the above determination. The above three power supply modules can charge the driving power supply 1 of the device to be powered separately or simultaneously.

[0070] In addition to the above-mentioned method of charging the driving power source 1 of the device to be charged by the power supply module of the power supply device, in some embodiments, the power management module is configured as follows:

[0071] Determine that the device to be powered has an energy recovery mechanism 11, and control the energy recovery mechanism 11 of the device to be powered to charge the driving power supply 1 of the device to be powered; determine that the device to be powered has a power generation mechanism 21, and control the power generation mechanism 21 of the device to be powered to charge the driving power supply 1 of the device to be powered.

[0072] Specifically, the energy recovery mechanism 11 of the device to be powered that has an energy recovery mechanism 11 will continuously charge the driving power supply 1 of the device to be powered, and the power generation mechanism 21 of the device to be powered that has a power generation mechanism 21 will continuously charge the driving power supply 1 of the device to be powered. 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 tensioning system of the present application can not only realize the energy replenishment between multiple electric devices, but also realize the energy replenishment of the electric devices themselves, and has high practicality.

[0073] Preferably, the power supply mode of the power supply module and the self-charging mode of the electric device have priorities to increase the rationality of the energy distribution scheme, thereby improving the automation level of the tensioning system. Figure 3 As shown, the priorities are explained below:

[0074] First, the power level of the driving power source 1 of each tension device 10 is compared with the third threshold value. If there is a tension device 10 whose driving power source 1 power level is greater than or equal to the third threshold value, the energy recovery mechanism 11 of the tension device 10 will replenish the recovered energy to the driving power source 1 of the device to be replenished.

[0075] Secondly, when there is no tension device 10 whose driving power source 1 has a power greater than or equal to the third threshold, the power of the driving power source 1 of each power-supplying device is compared with the second threshold. If there is a power-supplying device whose driving power source 1 has a power greater than the second threshold, the driving power source 1 of the power-supplying device charges the driving power source 1 of the device to be charged;

[0076] Finally, when there is no device that can be powered and whose driving power source 1 has a power supply amount greater than the second threshold, the power generation mechanism 21 is started to charge the driving power source 1 of the device to be powered.

[0077] In a specific embodiment of the present application, a first threshold as a threshold for determining whether external power supply can be provided, a second threshold as a threshold for determining a power-deficient state, and a third threshold as a threshold for determining a fully charged state are mentioned, wherein the third threshold is greater than the first threshold, and the second threshold is less than the first threshold. The device to be powered is determined by the second threshold, the third threshold is used to determine whether the energy recovery mechanism 11 of the tension device 10 can charge the device to be powered, and the first threshold is used to determine whether the driving power supply 1 with a higher power of the power supply device can charge the device to be powered, thereby achieving energy flow control of each electric device in the traction system, and further achieving reasonable utilization and allocation of energy to improve the operating efficiency of the tensioning system. Among them, the first threshold, the second threshold, and the third threshold can be pre-set, and the determination conditions for the execution of each step can be set to distinguish the priority of each step.

[0078] In some embodiments, a plurality of electric devices have a DC bus port 2 , and the plurality of DC bus ports 2 are interconnected, so that the power supply module can charge the driving power supply 1 of other electric devices through the DC bus port 2 .

[0079] Specifically, the driving power supply 1 of the device that can supply power charges the driving power supply 1 of the device to be powered through the DC bus port 2; the energy recovery mechanism 11 of the device that can supply power charges the driving power supply 1 of the device to be powered through the DC bus port 2; the power generation mechanism 21 of the device that can supply power charges the driving power supply 1 of the device to be powered through the DC bus port 2.

[0080] Furthermore, each electric device has its own DC bus port 2, and the DC bus ports 2 of different electric devices can be connected 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 devices 20 and the tension devices 10 in the same traction field 200 are connected, or only the traction devices 20 and the tension devices 10 in the same tension field 100 are connected, thereby achieving energy sharing among the electric devices in the traction field 200 or energy sharing among the electric devices in the tension field 100, thereby improving the practicality of the traction system.

[0081] Preferably, a DC / DC transformer is connected between the power supply module and the DC bus port 2. Since the power of the driving power supply 1 of different electric devices is different, the voltage of the driving power supply 1 of different electric devices is different. When the driving power supply 1 of the power supply device is used as the power supply module to charge the driving power supply 1 of the device to be charged, the voltage is made the same by setting a DC / DC transformer, thereby avoiding damage to the driving power supply 1, thereby improving the practicality of the tensioning system.

[0082] In some embodiments, the tensioning device 10 and the traction device 20 both have a DC charging port 3, and the tensioning system also includes a DC charging device that can be connected to the DC charging port 3, and the DC charging device charges the driving power supply 1 through the DC charging port 3; the tensioning device 10 and the traction device 20 both have an AC charging port 4, and the tensioning system also includes an AC charging device that can be connected to the AC charging port 4, and the AC charging device charges the driving power supply 1 through the AC charging port 4.

[0083] In fact, the energy of the entire tensioning system will continue to decrease during the operation. In other words, if there is no external energy supplement entering the tensioning system, the driving power supply 1 of each electric device will be in a power-deficient state. Although the traction device 20 includes a power generation mechanism 21 capable of generating electricity, the power generation efficiency of the power generation mechanism 21 is low and will cause environmental pollution. Therefore, the driving power supply 1 of each electric device is charged by providing a DC charging port 3 to connect to a DC charging device and by providing an AC charging port 4 to connect to an AC charging device.

[0084] However, the installation of AC charging equipment and DC charging equipment is limited by site conditions, and in most cases the conditions for installation are not available. Therefore, energy sharing among various electric devices in the tensioning system through the DC bus port 2 is highly practical and economical, and is applicable to all site conditions.

[0085] In some embodiments, the tension device 10 and the traction device 20 both have an AC discharge port 5, and the tensioning system also includes an accessory device that can be connected to the AC discharge port 5. The driving power supply 1 discharges to the accessory device through the AC discharge port 5, and the accessory device includes a wire crimping machine, lighting equipment, etc.

[0086] Preferably, the power management module includes a power management unit 6, a manual operator and a controller 7 respectively arranged on each electric device. The controllers 7 and the driving power supply 1 on all electric devices are communicatively connected to the power management unit 6, and the manual controller 7 is used to manually adjust the controller 7 on each electric device to intervene in the automatic control mode of the power management unit 6.

[0087] Specifically, the controller 7 on the tension device 10 is used to control the opening and closing of the energy recovery mechanism 11, the DC bus port 2, the DC charging port 3, the AC charging port 4 and the AC discharge port 5; the controller 7 on the traction device 20 is used to control the opening and closing of the power generation mechanism 21, the DC bus port 2, the DC charging port 3, the AC charging port 4 and the AC discharge port 5.

[0088] Furthermore, the controller 7 of the tension device 10 and the controller 7 of the traction device 20 in the same tension field 100 are further electrically connected to the tension field 100 controller 7 assembly, and then electrically connected to the power management unit 6 of the tensioning system; the controller 7 of the tension device 10 and the controller 7 of the traction device 20 in the same traction field 200 are further electrically connected to the traction field 200 controller 7 assembly, and then electrically connected to the power management unit 6 of the tensioning system.

[0089] According to the different numbers of tension equipment and traction equipment in the tension field and traction field, the tensioning system is divided into a small tensioning system and a large tensioning system.

[0090] like Figures 1 to 3 As shown, the small stretching system includes a small tension field and a small traction field.

[0091] like Figures 4 to 6 As shown, the large-scale distraction system includes a large-scale tension field and a large-scale traction field.

[0092] Those skilled in the art will appreciate that the small-scale stretching system and the large-scale stretching system are not limited to the arrangement and quantity of the tensioning devices and traction devices shown in the figures, and may also be adjusted according to actual needs.

[0093] like Figure 7 As shown, a specific embodiment of the present application further provides an energy flow control method of a stretching system, comprising:

[0094] Step S1: determining that the electric device whose driving power source 1 is in a power-deficient state is a device to be powered up;

[0095] Step S2: Determine that other electric devices other than the device to be powered and having a power supply module are power supply devices;

[0096] Step S3: Control the power supply module to charge the driving power supply 1 of the device to be powered.

[0097] It can be seen that in the specific embodiment of the present application, each electric device is powered by its own driving power supply 1, and each driving power supply 1 provides corresponding power according to the actual operating 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 driving power supply 1 of some electric devices will be lower than the actual required power, causing the driving power supply 1 of the electric device to be in a low-power state. The electric device whose driving power supply 1 is in a low-power state is a device to be powered on. If the driving power supply 1 of the device to be powered on is not charged in time, it will affect the operating efficiency of the device to be powered on.

[0098] At the same time, the driving power supply 1 of some electric devices may be higher than the actual power required, among which the electric devices with power supply modules and whose driving power supply 1 is not in a power-deficient state are power supply devices. In this application, the device to be powered and the power supply device are determined by the energy flow control method, and the power supply module of the power supply device is controlled to charge the driving power supply 1 of the device to be powered, thereby increasing the power of the driving power supply 1 of the device to be powered, and then realizing the reasonable allocation of energy to improve the operating efficiency of the tensioning system.

[0099] In some embodiments, step S1 comprises:

[0100] Step S11: obtaining the power of the driving power source 1 of the electric device;

[0101] Step S12: determining that the driving power source 1 whose power is less than or equal to the second threshold is in a power-deficient state;

[0102] Step S13: determining that the electric device whose driving power source 1 is in a power-deficient state is a device to be powered up.

[0103] In some embodiments, step S2 comprises:

[0104] Step S21: determining that the driving power supply 1 with a power level greater than a second threshold is in a normal state;

[0105] Step S22: confirming that the electric device whose driving power source 1 is in a normal state has a power supply module;

[0106] Step S23: Determine that the electric device whose driving power source 1 is in a normal state and has a power supply module is a power supply device.

[0107] Through steps S1 and S2, it is possible to determine the power-supplyable devices and the devices to be powered in the tensioning system, and that the power-supplyable devices have one or more of the driving power source 1, the power generation mechanism 21 and the energy recovery mechanism 11, but it is not certain which one or which ones of the driving power source 1, the power generation mechanism 21 and the energy recovery mechanism 11 are charged and the charging priority.

[0108] In order to determine the specific power supply module, in some embodiments, step S3 includes:

[0109] Step S31: confirming that the driving power source 1 of the power-supply-capable device whose power supply amount is greater than a first threshold is a power-supply-capable module;

[0110] Step S32: controlling the driving power source 1 with a power level greater than the first threshold to charge the driving power source 1 of the device to be charged.

[0111] Step S31 and step S32 are specific steps for determining whether the driving power source 1 of the power-supplyable device can serve as a power-supplyable module.

[0112] In some embodiments, step S3 comprises:

[0113] Step S31': confirming that the power of the driving power source 1 is greater than a third threshold and that the energy recovery mechanism 11 of the power supply device having the energy recovery mechanism 11 is a power supply module;

[0114] Step S32 ′: controlling the energy recovery mechanism 11 to charge the driving power source 1 of the device to be charged.

[0115] Specifically, step S31 ′ and step S32 ′ are specific steps for determining whether the energy recovery mechanism 11 of the power-supplyable device having the energy recovery mechanism 11 can serve as a power-supplyable module.

[0116] In some embodiments, controlling the power supply module to charge the driving power supply 1 of the device to be powered includes:

[0117] Step S31″: confirming that the power generation mechanism 21 of the power supply device having the power generation mechanism 21 is a power supply module;

[0118] Step S32 ”: controlling the power generation mechanism 21 to charge the driving power source 1 of the device to be powered.

[0119] In fact, the available energy in the entire tensioning system continuously decreases with the operation of the electric equipment, 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 the present application can supplement energy to maintain the normal operation of the tensioning system when the available energy of the entire tensioning system is insufficient.

[0120] Preferably, the various implementations of step S3 and the self-charging methods of the electric equipment all have priorities to increase the rationality of the energy flow control method, and the reasonable setting of the priority of each implementation is also conducive to the automatic execution of the energy flow control method, thereby improving the degree of automation of the tensioning system.

[0121] A specific 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 energy flow control method. The machine-readable storage medium can be directly installed in the traction system for use.

[0122] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may 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 may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0123] 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. 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.

[0124] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate 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 A function specified in one or more boxes.

[0125] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0126] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0127] 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.

[0128] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. 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 disk read-only memory (CD-ROM), digital versatile disk (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 temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0129] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0130] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0131] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0132] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A stretching system, characterized in that: The invention comprises a plurality of electric devices having a driving power source (1), wherein the plurality of electric devices include a traction device (20) and / or a tension device (10), and at least one of the electric devices has a power supply module, wherein the power supply module of the electric device can charge the driving power source (1) of other electric devices.

2. The stretching system according to claim 1, characterized in that: The stretching system further includes a power management module, which is electrically connected to the plurality of electric devices and configured as follows: Comparing the amount of electricity of the driving power source (1) of each of the electric devices; The power supply module of the electric device with a higher power of the driving power source (1) is controlled to charge the driving power source (1) of the electric device with a lower power of the driving power source (1).

3. The stretching system according to claim 1, characterized in that: The power supply module comprises a driving power source (1) whose power quantity is greater than a threshold value for determining whether external power supply is possible.

4. The stretching system according to claim 1, characterized in that: The traction device (20) comprises a power generation mechanism (21), and the power supply module comprises the power generation mechanism (21).

5. The stretching system according to claim 1, characterized in that: The tension device (10) comprises an energy recovery mechanism (11) for recovering its own kinetic energy and converting it into electrical energy, and the power supply module comprises the energy recovery mechanism (11).

6. The stretching system according to claim 1, characterized in that: The plurality of electric devices all have a DC bus port (2), and the power supply module charges the driving power supply (1) of other electric devices through the DC bus port (2).

7. The stretching system according to claim 6, characterized in that: A DC / DC transformer is connected between the power supply module and the DC bus port (2).

8. The stretching system according to any one of claims 1 to 7, characterized in that: The tension device (10) and the traction device (20) both have a DC charging port (3), and the tensioning system further comprises a DC charging device that can be connected to the DC charging port (3), and the DC charging device charges the driving power supply (1) through the DC charging port (3).

9. The stretching system according to any one of claims 1 to 7, characterized in that: The tension device (10) and the traction device (20) both have an AC charging port (4), and the tensioning system further comprises an AC charging device that can be connected to the AC charging port (4), and the AC charging device charges the driving power supply (1) through the AC charging port (4).

10. The stretching system according to any one of claims 1 to 7, characterized in that: The tension device (10) and the traction device (20) both have an AC discharge port (5), the tensioning system further comprises an accessory device that can be connected to the AC discharge port (5), and the driving power source (1) discharges to the accessory device through the AC discharge port (5).

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