Electric equipment control method, device and equipment

Abstract

The invention discloses an electric equipment control method, device and equipment. The method comprises the following steps: determining an average value of a ratio of peak current to stable current of a direct-current bridge according to historical data; acquiring real-time current and rated current of the direct-current bridge; determining a schedulable current according to the average value, the real-time current and a rated current; and determining target electric equipment which can be additionally arranged on the direct-current bridge based on the schedulable current. The target electric equipment which can be additionally arranged on the direct-current bridge is determined by determining the schedulable current, the difference between the actual use current and the schedulable current can be reduced, and therefore the direct-current utilization rate is improved.

Description

Technical Field

[0001] The present application relates to the field of production control technology, and in particular to a method, device and equipment for controlling electrical equipment. Background Art

[0002] The existing strategy for using direct current is to calculate the production current according to the maximum power of the electrical equipment.

[0003] However, since the electrical equipment in the actual production process is not in a high-load operation state for a long time, there may be a situation where the actual current used is less than the production current, resulting in a low DC power utilization rate. Summary of the invention

[0004] The present application provides a method, device and equipment for controlling electric equipment, which can solve the technical problem of low DC power utilization rate existing in the prior art.

[0005] In a first aspect, an embodiment of the present application provides a method for controlling an electric device, the method comprising:

[0006] Determine the average value of the ratio of the peak current to the stable current of the DC bridge based on historical data;

[0007] Get the real-time current and rated current of the DC bridge;

[0008] Determine the dispatchable current according to the average value, the real-time current and the rated current;

[0009] The target electrical equipment that can be added to the DC bridge is determined based on the available current.

[0010] In combination with the first aspect, in one implementation, determining the schedulable current according to the average value, the real-time current and the rated current includes:

[0011] Substitute the average value, real-time current and rated current into the first formula to calculate the schedulable current. The first formula is:

[0012] I3=(I1-I2-k×I1)×P

[0013] Among them, I1 is the rated current, I2 is the real-time current, the value range of k is 0.1~0.2, P is the average value, and I3 is the schedulable current.

[0014] In combination with the first aspect, in one implementation, the number of target power-consuming devices is one or more, and the sum of the peak currents of all target power-consuming devices is less than or equal to the schedulable current.

[0015] In combination with the first aspect, in one implementation, after obtaining the real-time current and the rated current of the DC bridge, the method further includes:

[0016] The set of electrical equipment that can be simultaneously switched on and off among the M electrical equipment hung under the DC bridge is determined based on the average value, the real-time current and the rated current.

[0017] In combination with the first aspect, in one implementation, the set of electrical equipment that can be simultaneously switched on and off among the M electrical equipment hung under the DC bridge is determined according to the average value, the real-time current, and the rated current, and includes:

[0018] Determine the theoretical current according to the average value and the real-time current;

[0019] Check whether the theoretical current is less than or equal to the rated current;

[0020] If the theoretical current is less than or equal to the rated current, the M electrical equipments hung under the DC bridge are regarded as the set of electrical equipments that can be switched on and off simultaneously.

[0021] In combination with the first aspect, in one implementation, after detecting whether the theoretical current is less than or equal to the rated current, the method further includes:

[0022] If the theoretical current is greater than the rated current, the safe current is determined according to the average value, the real-time current and the rated current;

[0023] If the M electrical equipments under the DC bridge correspond to the same peak current, then substitute M, the real-time current and the safety current into the second formula to obtain the number of electrical equipments that can be switched on and off simultaneously. The second formula is:

[0024]

[0025] Among them, I2 is the real-time current, I4 is the safety current, and N is the number of electrical devices that can be switched on and off at the same time;

[0026] N′ electrical equipment is selected from M electrical equipment as a set of electrical equipment that can be simultaneously switched on and off, wherein N′ is a positive integer not greater than N and closest to N.

[0027] In combination with the first aspect, in one implementation, after detecting whether the theoretical current is less than or equal to the rated current, the method further includes:

[0028] If the theoretical current is greater than the rated current, the safe current is determined according to the average value, the real-time current and the rated current;

[0029] If the M electrical equipments under the DC bridge do not correspond to the same peak current, the M electrical equipments are divided into q groups, wherein the electrical equipments included in each group correspond to the same peak current;

[0030] According to the selection rule, electrical equipment is selected from M electrical equipment as a set of electrical equipment that can be simultaneously switched on and off. The selection rule is:

[0031]

[0032] Among them, A i is the number of electrical devices selected from the i-th group, I i ′ is the peak current corresponding to the i-th group, and I4 is the safety current.

[0033] In combination with the first aspect, in one implementation, determining the safe current according to the average value, the real-time current and the rated current includes:

[0034] Substitute the average value, real-time current and rated current into the third formula to calculate the safe current. The third formula is:

[0035]

[0036] Among them, I1 is the rated current, I2 is the real-time current, P is the average value, and I4 is the safety current.

[0037] In a second aspect, an embodiment of the present application provides an electric device control device, the electric device control device comprising:

[0038] A first determination module is used to determine an average value of the ratio of the peak current to the stable current of the DC bridge according to historical data;

[0039] An acquisition module is used to obtain the real-time current and rated current of the DC bridge;

[0040] A second determination module is used to determine the schedulable current according to the average value, the real-time current and the rated current;

[0041] The third determination module is used to determine the target electrical equipment that can be added to the DC bridge based on the available current.

[0042] In a third aspect, an embodiment of the present application provides an electric equipment control device, which includes a processor, a memory, and an electric equipment control program stored in the memory and executable by the processor, wherein when the electric equipment control program is executed by the processor, the steps of the electric equipment control method described in the first aspect are implemented.

[0043] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0044] In the embodiment of the present application, the average value of the ratio of the peak current to the stable current of the DC bridge is determined based on historical data; the real-time current and the rated current of the DC bridge are obtained; the schedulable current is determined based on the average value, the real-time current and the rated current; and the target power-consuming equipment that can be added to the DC bridge is determined based on the schedulable current. Through the embodiment of the present application, by determining the schedulable current, the target power-consuming equipment that can be added to the DC bridge is determined, which can narrow the gap between the actual current used and the scheduled current, thereby improving the utilization rate of DC power. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a flow chart of an embodiment of a method for controlling an electric device of the present application;

[0046] Figure 2 A flowchart of another embodiment of the electric equipment control method of the present application;

[0047] Figure 3 This is a functional module diagram of an embodiment of the electric equipment control device of the present application;

[0048] Figure 4 This is a schematic diagram of the hardware structure of the electrical equipment control device involved in the embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0051] In a first aspect, an embodiment of the present application provides a method for controlling an electrical device.

[0052] In one embodiment, referring to Figure 1 , Figure 1 This is a flow chart of an embodiment of the electric equipment control method of the present application. Figure 1 As shown, the electric equipment control method includes:

[0053] Step S10, determining an average value of the ratio of the peak current to the stable current of the DC bridge according to historical data;

[0054] In this embodiment, the historical data includes the peak current and stable current of the DC bridge rack in several production processes. The ratio of the peak current to the stable current of the DC bridge rack in each production process is calculated to obtain several ratios. The average value is calculated based on the several ratios as the average value of the ratio of the peak current to the stable current of the DC bridge rack.

[0055] Step S20, obtaining the real-time current and rated current of the DC bridge;

[0056] In this embodiment, the real-time current of the DC bridge can be obtained when the current production process has been carried out for a preset time, wherein the rated current is a fixed value and can be pre-stored in a storage area.

[0057] Step S30, determining the dispatchable current according to the average value, the real-time current and the rated current;

[0058] In this embodiment, the schedulable current can be determined based on the average value, the real-time current and the rated current in combination with a preset calculation method. The schedulable current is equivalent to the unused current in the total current provided by the current DC bridge. For example, the product of the residual current and the average value is used as the schedulable current, wherein the residual current is the difference obtained by subtracting the real-time current from the rated current.

[0059] Furthermore, in one embodiment, step S30 includes:

[0060] Substitute the average value, real-time current and rated current into the first formula to calculate the schedulable current. The first formula is:

[0061] I3=(I1-I2-k×I1)×P

[0062] Among them, I1 is the rated current, I2 is the real-time current, the value range of k is 0.1~0.2, P is the average value, and I3 is the schedulable current.

[0063] In this embodiment, in order to avoid the risk of the actual current exceeding the rated current of the DC bridge, k×I1 is used as the redundant current, that is, the redundant current is subtracted from the residual current, and then multiplied by the average value, and the product is used as the dispatchable current.

[0064] Step S40, determining target electrical equipment that can be added to the DC bridge based on the available current.

[0065] In this embodiment, for example, if the size of the current that can be produced is 300A, that is, 300A of current is not used, target electrical equipment can be added to the DC bridge, thereby reducing the size of the current that can be produced, thereby improving the utilization rate of DC power.

[0066] Furthermore, in one embodiment, the number of target power-consuming devices is one or more, and the sum of the peak currents of all target power-consuming devices is less than or equal to the scheduleable current.

[0067] In the embodiment of the present application, the average value of the ratio of the peak current to the stable current of the DC bridge is determined based on historical data; the real-time current and the rated current of the DC bridge are obtained; the schedulable current is determined based on the average value, the real-time current and the rated current; and the target power-consuming equipment that can be added to the DC bridge is determined based on the schedulable current. Through the embodiment of the present application, by determining the schedulable current, the target power-consuming equipment that can be added to the DC bridge is determined, which can narrow the gap between the actual current used and the scheduled current, thereby improving the utilization rate of DC power.

[0068] Further, in one embodiment, referring to Figure 2 , Figure 2 This is a flow chart of another embodiment of the electric equipment control method of the present application. Figure 2 As shown, after step S20, it also includes:

[0069] Step S50, determining a set of electrical equipment that can be simultaneously switched on and off among the M electrical equipment hung under the DC bridge according to the average value, the real-time current and the rated current.

[0070] In this embodiment, the maximum current value that may occur in the DC bridge under the current load condition can be determined based on the average value and the real-time current, and compared with the rated current. If it is greater than the rated current, it means that if the M electrical equipment hanging under the DC bridge is switched on and off at the same time, there is a risk of tripping or burning the fuse, and it is necessary to select a part of the M electrical equipment as the set of electrical equipment that can be switched on and off at the same time; if it is not greater than the rated current, the M electrical equipment is used as the set of electrical equipment that can be switched on and off at the same time.

[0071] Furthermore, in one embodiment, step S50 includes:

[0072] Step S501, determining a theoretical current according to the average value and the real-time current;

[0073] In this embodiment, the product of the average value and the real-time current is used as the theoretical current, and the theoretical current is the maximum current value that may appear in the DC bridge under the current load condition.

[0074] Step S502, detecting whether the theoretical current is less than or equal to the rated current;

[0075] Step S503: if the theoretical current is less than or equal to the rated current, the M electrical equipments under the DC bridge are taken as a set of electrical equipments that can be switched on and off simultaneously.

[0076] In this embodiment, the theoretical current is compared with the rated current. If the theoretical current is less than or equal to the rated current, in this case, even if M electrical equipment are switched on and off at the same time, the maximum current will not exceed the rated current. In this case, the M electrical equipment hung under the DC bridge are regarded as a set of electrical equipment that can be switched on and off at the same time.

[0077] Furthermore, in one embodiment, after step S502, the method further includes:

[0078] Step S504, if the theoretical current is greater than the rated current, determining the safe current according to the average value, the real-time current and the rated current;

[0079] In this embodiment, when the theoretical current is greater than the rated current, the safe current is determined based on the average value, the real-time current and the rated current in combination with a specific calculation method. The safe current is the maximum current at which the actual current during the switch operation does not exceed the rated current.

[0080] Step S505: If the M electrical devices connected to the DC bridge correspond to the same peak current, then M, the real-time current and the safety current are substituted into the second formula to obtain the number of electrical devices that can be switched on and off at the same time. The second formula is:

[0081]

[0082] Among them, I2 is the real-time current, I4 is the safety current, and N is the number of electrical devices that can be switched on and off at the same time;

[0083] Step S506: Select N′ electrical devices from the M electrical devices as a set of electrical devices that can be simultaneously powered on and off, where N′ is a positive integer not greater than N and closest to N.

[0084] In this embodiment, if the M electrical devices under the DC bridge correspond to the same peak current, the number N of electrical devices that can be switched on and off simultaneously is determined according to the second formula. Considering that N is very likely not a positive integer, N needs to be rounded down to obtain N′, and N′ electrical devices are selected from the M electrical devices as the set of electrical devices that can be switched on and off simultaneously. Here, N′ electrical devices can be randomly selected from the M electrical devices.

[0085] Furthermore, in one embodiment, after step S502, the method further includes:

[0086] Step S507, if the theoretical current is greater than the rated current, determining the safe current according to the average value, the real-time current and the rated current;

[0087] Step S508: if the M electrical devices connected to the DC bridge do not correspond to the same peak current, the M electrical devices are divided into q groups, wherein the electrical devices included in each group correspond to the same peak current;

[0088] Step S509: Select electrical devices from the M electrical devices as a set of electrical devices that can be simultaneously powered on and off according to a selection rule. The selection rule is:

[0089]

[0090] Among them, A i is the number of electrical devices selected from the i-th group, I i ′ is the peak current corresponding to the i-th group, and I4 is the safety current.

[0091] In this embodiment, for the convenience of explanation, it is assumed that M electrical devices are divided into three groups, which are recorded as group 1, group 2 and group 3, wherein group 1 includes 5 electrical devices, group 2 includes 10 electrical devices, group 3 includes 7 electrical devices, the peak current corresponding to group 1 is 200A, the peak current corresponding to group 2 is 300A, and the peak current corresponding to group 3 is 90A. If I4=1500, the set of electrical devices that can be switched on and off at the same time includes:

[0092] The five electrical devices in group 1, any one electrical device in group 2, and any two electrical devices in group 3.

[0093] Alternatively, the set of electrical equipment that can be switched on and off simultaneously includes:

[0094] The five electrical devices in group 1 and any five electrical devices in group 3.

[0095] By analogy, suitable electrical equipment can be selected according to the above selection rules and added to the set of electrical equipment that can be simultaneously turned on and off.

[0096] Further, in one embodiment, determining the safe current according to the average value, the real-time current and the rated current includes:

[0097] Substitute the average value, real-time current and rated current into the third formula to calculate the safe current. The third formula is:

[0098]

[0099] Among them, I1 is the rated current, I2 is the real-time current, P is the average value, and I4 is the safety current.

[0100] In this embodiment, the safety current is defined as the maximum current in which the actual current during the switch electrical operation does not exceed the rated current, which is calculated by the third formula above.

[0101] In a second aspect, an embodiment of the present application also provides an electrical equipment control device.

[0102] In one embodiment, referring to Figure 3 , Figure 3 This is a functional module diagram of an embodiment of the electric equipment control device of the present application. Figure 3 As shown, the electrical equipment control device includes:

[0103] A first determination module 10 is used to determine an average value of the ratio of the peak current to the stable current of the DC bridge according to historical data;

[0104] An acquisition module 20 is used to acquire the real-time current and rated current of the DC bridge;

[0105] A second determination module 30, configured to determine the schedulable current according to the average value, the real-time current and the rated current;

[0106] The third determination module 40 is used to determine target electrical equipment that can be added to the DC bridge based on the available current.

[0107] Furthermore, in one embodiment, the second determining module 30 is configured to:

[0108] Substitute the average value, real-time current and rated current into the first formula to calculate the schedulable current. The first formula is:

[0109] I3=(I1-I2-k×I1)×P

[0110] Among them, I1 is the rated current, I2 is the real-time current, the value range of k is 0.1~0.2, P is the average value, and I3 is the schedulable current.

[0111] Furthermore, in one embodiment, the number of target power-consuming devices is one or more, and the sum of the peak currents of all target power-consuming devices is less than or equal to the scheduleable current.

[0112] Furthermore, in one embodiment, the electrical equipment control device further includes a fourth determining module, which is used to:

[0113] The set of electrical equipment that can be simultaneously switched on and off among the M electrical equipment hung under the DC bridge is determined based on the average value, the real-time current and the rated current.

[0114] Furthermore, in one embodiment, the fourth determining module is used to:

[0115] Determine the theoretical current according to the average value and the real-time current;

[0116] Check whether the theoretical current is less than or equal to the rated current;

[0117] If the theoretical current is less than or equal to the rated current, the M electrical equipments hung under the DC bridge are regarded as the set of electrical equipments that can be switched on and off simultaneously.

[0118] Furthermore, in one embodiment, the fourth determining module is used to:

[0119] If the theoretical current is greater than the rated current, the safe current is determined according to the average value, the real-time current and the rated current;

[0120] If the M electrical equipments under the DC bridge correspond to the same peak current, then substitute M, the real-time current and the safety current into the second formula to obtain the number of electrical equipments that can be switched on and off simultaneously. The second formula is:

[0121]

[0122] Among them, I2 is the real-time current, I4 is the safety current, and N is the number of electrical devices that can be switched on and off at the same time;

[0123] N′ electrical equipment is selected from M electrical equipment as a set of electrical equipment that can be simultaneously switched on and off, wherein N′ is a positive integer not greater than N and closest to N.

[0124] Furthermore, in one embodiment, the fourth determining module is used to:

[0125] If the theoretical current is greater than the rated current, the safe current is determined according to the average value, the real-time current and the rated current;

[0126] If the M electrical equipments under the DC bridge do not correspond to the same peak current, the M electrical equipments are divided into q groups, wherein the electrical equipments included in each group correspond to the same peak current;

[0127] According to the selection rule, electrical equipment is selected from M electrical equipment as a set of electrical equipment that can be simultaneously switched on and off. The selection rule is:

[0128]

[0129] Among them, A i is the number of electrical devices selected from the i-th group, I i ′ is the peak current corresponding to the i-th group, and I4 is the safety current.

[0130] Furthermore, in one embodiment, the fourth determining module is used to:

[0131] Substitute the average value, real-time current and rated current into the third formula to calculate the safe current. The third formula is:

[0132]

[0133] Among them, I1 is the rated current, I2 is the real-time current, P is the average value, and I4 is the safety current.

[0134] Among them, the functional implementation of each module in the above-mentioned power-consuming equipment control device corresponds to each step in the above-mentioned power-consuming equipment control method embodiment, and its functions and implementation processes are no longer repeated here.

[0135] In a third aspect, an embodiment of the present application provides an electric device control device, which may be a personal computer (PC), a laptop computer, a server, or other device with data processing capabilities.

[0136] Reference Figure 4 , Figure 4 Schematic diagram of the hardware structure of the power-consuming device control device involved in the embodiment of the present application. In the embodiment of the present application, the power-consuming device control device may include a processor, a memory, a communication interface and a communication bus.

[0137] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0138] The communication interface includes input / output (I / O) interface, physical interface and logical interface, etc., which are used to realize the interconnection of devices inside the power-consuming device control device, and the interface used to realize the interconnection between the power-consuming device control device and other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber optic interface, an ATM interface, etc.; the user device can be a display (Display), a keyboard (Keyboard), etc.

[0139] The memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0140] The processor may be a general-purpose processor, and the general-purpose processor may call the electric device control program stored in the memory and execute the electric device control method provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the electric device control program is called may refer to the various embodiments of the electric device control method of the present application, and will not be repeated here.

[0141] Those skilled in the art will understand that Figure 4 The hardware structure shown in the figure does not constitute a limitation on the present application, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0142] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0143] The computer-readable storage medium of the present application stores an electric device control program, wherein when the electric device control program is executed by a processor, the steps of the electric device control method as described above are implemented.

[0144] Among them, the method implemented when the power-consuming device control program is executed can refer to the various embodiments of the power-consuming device control method of the present application, and will not be repeated here.

[0145] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0146] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0147] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0148] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0149] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0150] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0151] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for controlling an electric device, characterized in that: The electric equipment control method comprises: Determine the average value of the ratio of the peak current to the stable current of the DC bridge based on historical data; Get the real-time current and rated current of the DC bridge; Determine the dispatchable current according to the average value, the real-time current and the rated current; The target electrical equipment that can be added to the DC bridge is determined based on the available current.

2. The method for controlling an electric device according to claim 1, characterized in that: Determining the schedulable current according to the average value, the real-time current and the rated current comprises: Substitute the average value, real-time current and rated current into the first formula to calculate the schedulable current. The first formula is: I3=(I1-I2-k×I1)×P Among them, I1 is the rated current, I2 is the real-time current, the value range of k is 0.1~0.2, P is the average value, and I3 is the schedulable current.

3. The method for controlling an electric device according to claim 2, characterized in that: The number of target power-consuming devices is one or more, and the sum of the peak currents of all target power-consuming devices is less than or equal to the dispatchable current.

4. The method for controlling an electric device according to claim 1, wherein: After obtaining the real-time current and rated current of the DC bridge, the method further includes: The set of electrical equipment that can be simultaneously switched on and off among the M electrical equipment hung under the DC bridge is determined based on the average value, the real-time current and the rated current.

5. The method for controlling an electric device according to claim 4, characterized in that: The set of electrical equipment that can be simultaneously switched on and off among the M electrical equipment hung under the DC bridge frame is determined according to the average value, the real-time current and the rated current, and includes: Determine the theoretical current according to the average value and the real-time current; Check whether the theoretical current is less than or equal to the rated current; If the theoretical current is less than or equal to the rated current, the M electrical equipments hung under the DC bridge are regarded as the set of electrical equipments that can be switched on and off simultaneously.

6. The method for controlling an electric device according to claim 5, characterized in that: After detecting whether the theoretical current is less than or equal to the rated current, the method further includes: If the theoretical current is greater than the rated current, the safe current is determined according to the average value, the real-time current and the rated current; If the M electrical equipments under the DC bridge correspond to the same peak current, then substitute M, the real-time current and the safety current into the second formula to obtain the number of electrical equipments that can be switched on and off simultaneously. The second formula is: Among them, I2 is the real-time current, I4 is the safety current, and N is the number of electrical devices that can be switched on and off at the same time; N' electrical equipments are selected from M electrical equipments as a set of electrical equipments that can be simultaneously switched on and off, wherein N' is a positive integer not greater than N and closest to N.

7. The method for controlling an electric device according to claim 5, characterized in that: After detecting whether the theoretical current is less than or equal to the rated current, the method further includes: If the theoretical current is greater than the rated current, the safe current is determined according to the average value, the real-time current and the rated current; If the M electrical equipments under the DC bridge do not correspond to the same peak current, the M electrical equipments are divided into q groups, wherein the electrical equipments included in each group correspond to the same peak current; According to the selection rule, electrical equipment is selected from M electrical equipment as a set of electrical equipment that can be simultaneously switched on and off. The selection rule is: Among them, A i is the number of electrical devices selected from the i-th group, I i ′ is the peak current corresponding to the i-th group, and I4 is the safety current.

8. The method for controlling an electric device according to claim 6 or 7, characterized in that: Determining the safe current according to the average value, the real-time current and the rated current comprises: Substitute the average value, real-time current and rated current into the third formula to calculate the safe current. The third formula is: Among them, I1 is the rated current, I2 is the real-time current, P is the average value, and I4 is the safety current.

9. A control device for electric equipment, characterized in that: The electric equipment control device comprises: A first determination module is used to determine an average value of the ratio of the peak current to the stable current of the DC bridge according to historical data; An acquisition module is used to obtain the real-time current and rated current of the DC bridge; A second determination module is used to determine the schedulable current according to the average value, the real-time current and the rated current; The third determination module is used to determine the target electrical equipment that can be added to the DC bridge based on the available current.

10. An electric equipment control device, characterized in that: The electric device control device includes a processor, a memory, and an electric device control program stored in the memory and executable by the processor, wherein when the electric device control program is executed by the processor, the steps of the electric device control method according to any one of claims 1 to 8 are implemented.

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