An energy management and control system for an oil platform and method thereof

Abstract

The application relates to the technical field of oil platform energy management and control, and discloses an oil platform energy management and control system which comprises an energy collection and detection module, an energy use data calculation module, an energy dispatching module and a safety detection module; the energy collection and detection module comprises an electric energy collection unit, a solar energy collection unit and a fuel collection unit; the energy use data calculation module comprises an energy use record unit and an energy consumption calculation unit; the energy dispatching module comprises a dispatching request analysis unit and an actual dispatching unit; and the safety detection module comprises an energy reserve calculation unit and an equipment energy consumption anomaly detection unit. The method counts the electric energy and fuel gas energy on the oil platform, establishes an optimal energy consumption model according to the required energy consumption of each device, solves the optimal energy consumption model, obtains optimal energy distribution weights, and performs dispatching and distribution according to the energy distribution weights, so that the energy of the oil platform is saved and utilized, and the dispatching cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of energy management technology for oil platforms, specifically to an energy management system and method for oil platforms. Background Technology

[0002] An oil platform, also known as a drilling platform, is a large offshore structure used for drilling to extract oil and natural gas, and for temporary storage until the oil is transported to an onshore refinery for cracking and processing. In many cases, the platform includes extraction facilities as well as living quarters to house the workforce.

[0003] In an energy management system for offshore oil production equipment disclosed in prior art CN203133594U, an electricity meter and an ultrasonic flow meter are provided to monitor the various electricity consumption points and crude oil consumption points of the offshore oil production equipment. The monitored data is transmitted to the master computer for centralized monitoring via the data acquisition device. Once a certain value exceeds the set value, the master computer controls the alarm device to sound an alarm. Therefore, the energy management system for offshore oil production equipment can achieve precise control over the energy of the offshore oil production equipment, thereby facilitating the efficient use of energy.

[0004] Current technologies often only consider using a single energy source to supply energy to a particular device when scheduling energy for that device, while neglecting the possibility of using a combination of multiple energy sources to reduce costs. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an energy management system and method for oil platforms, which has advantages such as energy saving and solves the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an energy management and control system for an oil platform, comprising an energy acquisition and detection module, an energy usage data calculation module, an energy dispatching module, and a safety detection module;

[0009] The energy acquisition and detection module includes an electrical energy acquisition unit, a solar energy acquisition unit, and a fuel oil acquisition unit. The electrical energy acquisition unit is used to collect and store the electrical energy generated by wind power on the oil platform. The solar energy acquisition unit is used to collect the solar energy on the oil platform, convert it into electrical energy, and store it. The fuel oil acquisition unit is used to collect the gas energy collected by the oil platform. The energy acquisition and detection module also includes an energy monitoring unit, which is used to store the total amount of energy collected by the electrical energy acquisition unit, the solar energy acquisition unit, and the fuel oil acquisition unit respectively. The energy acquisition and detection module sends the stored data to the safety detection module.

[0010] The energy usage data calculation module includes an energy usage recording unit and an energy consumption calculation unit. The energy usage recording unit records the expected usage duration of the i-th device when the operator is about to use it. The energy consumption calculation unit calculates the energy required for the i-th device to be used. The energy usage data calculation module sends the calculation results and the operator's request to use the i-th device to the energy scheduling module.

[0011] The energy dispatching module includes a dispatching request analysis unit, an energy dispatching calculation unit, and an actual dispatching unit. The dispatching request analysis unit is used to detect whether the operator's request to use the i-th device is compliant. After confirming compliance, it calculates the optimal dispatching scheme through the energy calculation function in the energy dispatching calculation unit and performs the dispatching through the actual dispatching unit.

[0012] The safety detection module includes an energy reserve calculation unit and an equipment energy consumption anomaly detection unit. The energy reserve calculation unit is used to compare the energy scheduled by the energy scheduling module with the actual stored energy to avoid energy shortages. The equipment energy consumption anomaly detection unit is used to calculate the relationship between the actual energy used and the actual energy output of the i-th device during the operator's use of the device, and to determine whether the i-th device is abnormal based on the calculation results.

[0013] As a preferred embodiment of the present invention, the expressions collected and stored by the electrical energy collection unit, solar energy collection unit, and fuel oil collection unit in the energy collection and detection module are as follows:

[0014] CC t ={CCE t-1 +E t←t-1 CCD t-1 +D t←t-1}

[0015] Among them, CC t Indicates the current energy storage set, CCE t-1 +E t←t-1This represents the energy update expression at the current moment, CCD. t-1 +D t←t-1 CCE represents the gas energy update expression at the current moment. t-1 Represents the stored electrical energy at the previous moment, CCD t-1 E represents the stored gas energy at the previous moment. t←t-1 D represents the increase in electrical energy from the previous moment to the current moment. t←t-1 This represents the increase in gas energy from the previous moment to the current moment.

[0016] As a preferred embodiment of the present invention, the energy consumption calculation unit performs the energy consumption calculation using the following expression:

[0017] NY i =SJ i *ED i

[0018] Among them, NY i SJ represents the energy consumption required by the i-th device. i ED represents the usage time of the i-th device. i This represents the rated energy consumption of the i-th device.

[0019] As a preferred embodiment of the present invention, the specific steps in the energy dispatch module are as follows:

[0020] A1. Identify the current operator's permissions and determine whether they have permission to use the i-th device. If they do not have permission, reject the request. If they have permission, proceed to step A2.

[0021] A2. Identify the instruction for operating the i-th device and determine whether the instruction exists in the oil platform. If not, reject the request. If the user has permission, calculate the optimal scheduling scheme through the energy scheduling calculation unit and perform scheduling through the actual scheduling unit.

[0022] As a preferred embodiment of the present invention, the energy scheduling calculation unit calculates the optimal scheduling scheme by solving the following optimization model:

[0023] The objective function is:

[0024] minCB i =ω1CBE i,t +ω2CBD i,t

[0025] st:

[0026]

[0027] Among them, NY iCCE represents the energy consumption required by the i-th device. i,t This represents the electrical energy allocated to the i-th device at the current moment, CCD. i,t ρE represents the gas energy allocated to the i-th device at the current moment. i ρD represents the power type parameter of the i-th device. i The parameter represents the gas energy type of the i-th device, ω1 and ω2 represent the weights assigned to solve the calculation expression, min represents the minimum value function, and CB i CBE represents the energy cost of the i-th device. i,t CBD represents the cost of allocating electrical energy to the i-th device at the current moment. i,t CCE represents the cost of gas energy allocated to the i-th device at the current moment, where st represents a constraint; t Represents the total electrical energy stored at the current moment, CCD t This represents the total gas energy stored at the current moment.

[0028] As a preferred embodiment of the present invention, the expression for the power type parameter of the i-th device is as follows:

[0029]

[0030] Where, ρE i =0 indicates that the i-th device is not electrically driven, ρE i =ρe i This indicates that the i-th device is powered by electricity, and ρe i This represents the power loss coefficient of the i-th device.

[0031] As a preferred embodiment of the present invention, the expression for the gas energy type parameter of the i-th device is as follows:

[0032]

[0033] Where, ρD i =ρd1 i This indicates that the i-th device is not electrically driven, but is directly powered by gas energy, ρd1 i ρD represents the gas energy loss coefficient of the i-th device. i =ρe i *γ*ρd1 i This indicates that the i-th device is powered by electricity, and γ represents the power generation loss.

[0034] As a preferred embodiment of the present invention, the specific workflow of the security detection module is as follows:

[0035] B1. During the execution of step A2 by the scheduling request analysis unit, the energy reserve calculation unit calculates the energy set CC stored at the current time.t The total amount of energy in the device is judged. If the energy is insufficient, step A2 is terminated. If the energy is sufficient, step A2 is not terminated, and the device energy consumption anomaly detection unit is called to execute step B2.

[0036] B2. Calculate the energy consumption required by the i-th device. i The actual output energy consumption of the i-th device SJNY i The ratio between like If the temperature of the i-th device exceeds the temperature threshold, an alarm will be triggered; otherwise, no action will be taken. Here, μ represents the preset threshold used to determine whether a device is malfunctioning.

[0037] As a preferred embodiment of the present invention, the judgment expression in step B1 is as follows:

[0038] NY i ≥CCE t-1 +E t←t-1 +CCD t-1 +D t←t-1 -∑ N\i NY

[0039] Among them, CCE t-1 Represents the stored electrical energy at the previous moment, CCD t-1 E represents the stored gas energy at the previous moment. t←t-1 D represents the increase in electrical energy from the previous moment to the current moment. t←t-1 This represents the increase in gas energy from the previous moment to the current moment, NY i Let ∑ represent the energy consumption required by the i-th device. N\i NY represents the total energy consumption of devices currently in use, excluding i.

[0040] This invention also provides an energy management method for an oil platform, based on the above-mentioned energy management system for an oil platform, comprising the following steps:

[0041] S1. The energy acquisition and detection module collects energy from the oil platform, stores the total amount of energy collected, and sends it to the safety detection module to update the actual stored energy.

[0042] S2. When operating the i-th device, the operator records the estimated usage time of the i-th device and sends the request of the i-th device to the energy scheduling module.

[0043] S3. The energy dispatch module detects whether the operator's request to use the i-th device is compliant. After confirming compliance, it calculates the optimal dispatch scheme through the energy calculation function in the energy dispatch calculation unit and performs dispatch through the actual dispatch unit.

[0044] S4. During the scheduling process of the energy scheduling module, the safety detection module judges the energy scheduled by the energy scheduling module against the actual stored energy to avoid insufficient energy. At the same time, it calculates the relationship between the actual energy used and the actual energy output of the i-th device during the operation of the i-th device, and judges whether the i-th device is abnormal based on the calculation results.

[0045] Compared with the prior art, the present invention provides an energy management system and method for an oil platform, which has the following beneficial effects:

[0046] 1. This invention statistically analyzes the electrical and gas energy on the oil platform, establishes an optimal energy consumption model based on the energy consumption required by the i-th device, solves the optimal energy consumption model to obtain the optimal energy allocation weight, and performs scheduling and allocation based on this energy allocation weight, thereby ensuring the economical use of energy on the oil platform and reducing scheduling costs.

[0047] 2. In this invention, the energy reserve calculation unit determines the total amount of energy stored in the energy storage unit at the current moment during the energy scheduling module's energy scheduling calculation process. If the energy is insufficient, the energy scheduling calculation unit terminates the energy scheduling process, thereby avoiding the occurrence of energy shortage. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the system framework of the present invention;

[0049] Figure 2 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Please see Figures 1-2 An energy management and control system for an oil platform includes an energy acquisition and detection module, an energy usage data calculation module, an energy dispatch module, and a safety detection module;

[0052] The energy acquisition and detection module includes an electrical energy acquisition unit, a solar energy acquisition unit, and a fuel oil acquisition unit. The electrical energy acquisition unit collects and stores the electrical energy generated by wind power on the oil platform. The solar energy acquisition unit collects solar energy on the oil platform, converts it into electrical energy, and stores it. The fuel oil acquisition unit collects the gas energy collected by the oil platform. The energy acquisition and detection module also includes an energy monitoring unit, which stores the total energy collected by the electrical energy acquisition unit, the solar energy acquisition unit, and the fuel oil acquisition unit respectively. The energy acquisition and detection module sends the stored data to the safety detection module. The expressions for the electrical energy acquisition unit, the solar energy acquisition unit, and the fuel oil acquisition unit in the energy acquisition and detection module are as follows:

[0053] CC t ={CCE t-1 +E t←t-1 CCD t-1 +D t←t-1}

[0054] Among them, CC t Indicates the current energy storage set, CCE t-1 +E t←t-1 This represents the energy update expression at the current moment, CCD. t-1 +D t←t-1 CCE represents the gas energy update expression at the current moment. t-1 Represents the stored electrical energy at the previous moment, CCD t-1 E represents the stored gas energy at the previous moment. t←t-1 D represents the increase in electrical energy from the previous moment to the current moment. t←t-1 This represents the increase in gas energy from the previous moment to the current moment;

[0055] The energy usage data calculation module includes an energy usage recording unit and an energy consumption calculation unit. The energy usage recording unit records the estimated usage duration of the i-th device when the operator is about to use it. The energy consumption calculation unit calculates the energy NY required for the i-th device to be used. i =SJ i *ED i The energy usage data calculation module will calculate the results for NY. i And the operator's request to use the i-th device is sent to the energy dispatch module, where NY i SJ represents the energy consumption required by the i-th device. i ED represents the usage time of the i-th device. i This represents the rated energy consumption of the i-th device;

[0056] The energy dispatch module includes a dispatch request analysis unit, an energy dispatch calculation unit, and an actual dispatch unit. The dispatch request analysis unit is used to detect whether the operator's request to use the i-th device is compliant. After confirming compliance, it calculates the optimal dispatch plan through the energy calculation function in the energy dispatch calculation unit and performs the dispatch through the actual dispatch unit. Specifically, the dispatch request analysis unit identifies the current operator's permissions and determines whether the operator has permission to use the i-th device. If the operator does not have permission, the request is rejected. If the operator has permission, the unit identifies the current operation instruction for the i-th device and determines whether the operation instruction exists in the oil platform. If the operator does not have permission, the request is rejected. If the operator has permission, the unit calculates the optimal dispatch plan through the energy dispatch calculation unit and performs the dispatch through the actual dispatch unit.

[0057] The energy scheduling calculation unit establishes the following model, and calculates the optimal scheduling scheme by solving the following optimization model:

[0058] The objective function is:

[0059] minCB i =ω1CBE i,t +ω2CBD i,t

[0060] st:

[0061]

[0062] Among them, NY i CCE represents the energy consumption required by the i-th device. i,t This represents the electrical energy allocated to the i-th device at the current moment, CCD. i,t ρE represents the gas energy allocated to the i-th device at the current moment. i ρD represents the power type parameter of the i-th device. i The parameter represents the gas energy type of the i-th device, ω1 and ω2 represent the weights assigned to solve the calculation expression, min represents the minimum value function, and CB i CBE represents the energy cost of the i-th device. i,t CBD represents the cost of allocating electrical energy to the i-th device at the current moment. i,t CCE represents the cost of gas energy allocated to the i-th device at the current moment, where st represents a constraint; t Represents the total electrical energy stored at the current moment, CCD t This represents the total gas energy stored at the current moment;

[0063] The expression for the power type parameter of the i-th device is as follows:

[0064]

[0065] Where, ρE i =0 indicates that the i-th device is not electrically driven, ρE i =ρe i This indicates that the i-th device is powered by electricity, and ρe i This represents the power loss coefficient of the i-th device;

[0066] The expression for the gas energy type parameter of the i-th device is as follows:

[0067]

[0068] Where, ρD i =ρd1 i This indicates that the i-th device is not electrically driven, but is directly powered by gas energy, ρd1 i ρD represents the gas energy loss coefficient of the i-th device. i =ρe i *γ*ρd1 i This indicates that the i-th device is powered by electricity, and γ represents the power generation loss.

[0069] When the i-th device can only use electrical energy, the specific model expression is as follows:

[0070]

[0071] When the i-th device can only use gas energy, ω1 = 0, and the gas energy completely supplies the power. The specific model expression is as follows:

[0072]

[0073] The establishment of this model allows for the solution of the optimal energy consumption model, obtaining the optimal energy allocation weights, and scheduling and allocation based on these weights, ensuring the economical use of energy on oil platforms and thus reducing scheduling costs.

[0074] The safety detection module includes an energy reserve calculation unit and an equipment energy consumption anomaly detection unit. The energy reserve calculation unit is used to compare the energy scheduled by the energy dispatch module with the actual stored energy to avoid energy shortage. The equipment energy consumption anomaly detection unit is used to calculate the relationship between the actual energy used and the actual energy output of the i-th device during the operation of the i-th device, and to determine whether the i-th device is abnormal based on the calculation results.

[0075] The energy reserve calculation unit in the safety detection module performs energy calculation and scheduling during the energy scheduling process executed by the energy scheduling module. It then stores the current energy set CC. t Judging by the total amount of energy in NY i≥CCE t-1 +E t←t-1 +CCD t-1 +D t←t-1 -∑ N\i NY, ∑ N\i NY represents the total energy consumption of devices currently in use, excluding device i. If energy is insufficient, the energy scheduling calculation unit will terminate its energy scheduling calculation. If energy is sufficient, the calculation will not terminate, and the device energy consumption anomaly detection unit will be invoked to calculate the energy consumption NY required by device i. i The actual output energy consumption of the i-th device SJNY i The ratio between like If the temperature of the i-th device exceeds the temperature threshold, an alarm will be triggered; otherwise, no action will be taken. Here, μ represents the preset threshold used to determine whether a device is malfunctioning.

[0076] This invention also provides an energy management method for an oil platform, based on the above-mentioned energy management system for an oil platform, comprising the following steps:

[0077] S1. The energy acquisition and detection module collects energy from the oil platform, stores the total amount of energy collected, and sends it to the safety detection module to update the actual stored energy.

[0078] S2. When operating the i-th device, the operator records the estimated usage time of the i-th device and sends the request of the i-th device to the energy scheduling module.

[0079] S3. The energy dispatch module detects whether the operator's request to use the i-th device is compliant. After confirming compliance, it calculates the optimal dispatch scheme through the energy calculation function in the energy dispatch calculation unit and performs dispatch through the actual dispatch unit.

[0080] S4. During the scheduling process of the energy scheduling module, the safety detection module judges the energy scheduled by the energy scheduling module against the actual stored energy to avoid insufficient energy. At the same time, it calculates the relationship between the actual energy used and the actual energy output of the i-th device during the operation of the i-th device, and judges whether the i-th device is abnormal based on the calculation results.

[0081] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy management system for an oil platform, the system comprising: Including energy collection detection module, energy use data calculation module, energy scheduling module and safety detection module; The energy collection detection module includes an electric energy collection unit, a solar energy collection unit and a fuel collection unit, the electric energy collection unit is used for collecting and storing the electric energy generated by wind on the oil platform, the solar energy collection unit is used for collecting and converting solar energy on the oil platform into electric energy for storage, the fuel collection unit is used for collecting the fuel gas energy collected by the oil platform, the energy collection detection module further includes an energy monitoring unit for respectively storing the total amount of energy collected by the electric energy collection unit, the solar energy collection unit and the fuel collection unit, and the energy collection detection module sends the stored data to the safety detection module; The energy use data calculation module includes an energy use recording unit and an energy consumption calculation unit, the energy use recording unit is used for recording the expected use time of the i th device when the operator is about to use the i th device, and the energy consumption calculation unit calculates the energy needed to be consumed by the i th device in use, and the energy use data calculation module sends the calculation results and the request of the operator using the i th device to the energy scheduling module; The energy scheduling module includes a scheduling request analysis unit, an energy scheduling calculation unit and an actual scheduling unit, the scheduling request analysis unit is used for detecting whether the request of the operator using the i th device is compliant, confirming compliance through the energy calculation function in the energy scheduling calculation unit to calculate the optimal scheduling scheme, and scheduling through the actual scheduling unit; The safety detection module includes an energy reserve calculation unit and a device energy consumption anomaly detection unit, the energy reserve calculation unit is used for judging the energy scheduled by the energy scheduling module and the actually stored energy to avoid the situation of energy shortage, and the device energy consumption anomaly detection unit is used for calculating the relationship between the actual energy used by the i th device and the actual output energy during the use of the i th device by the operator, and judging whether the i th device is abnormal according to the calculation result; The specific steps of the energy scheduling module are as follows: A1, identify the permission of the current operator, and judge whether it has the permission to use the i th device, if not, reject the request, if yes, execute step A2; A2, identify the instruction of the current operator using the i th device, judge whether there is the operation instruction in the oil platform, if not, reject the request, if yes, calculate the optimal scheduling scheme through the energy scheduling calculation unit, and schedule through the actual scheduling unit; The specific working process of the safety detection module is as follows: B1, the energy reserve calculation unit judges the total amount of energy in the current time storage energy set CC t If the energy is not enough, step A2 is terminated. If the energy is sufficient, A2 is not terminated, and the device energy consumption anomaly detection unit is called to execute step B2. The judgment expression in step B1 is as follows: NY i ≥CCE t-1 +E t←t-1 +CCD t-1 +D t←t-1 -∑ N\i NY wherein CCE t-1 represents the stored electric energy at the previous time, CCD t-1 represents the stored gas energy at the previous time, E t←t-1 represents the electric energy increment from the previous time to the current time, D t←t-1 represents the gas energy increment from the previous time to the current time, NY i represents the energy consumption required by the i-th device, ∑ N\i NY represents the total of the energy consumption occupied by the devices in use other than the i-th device at the current time. B2, the energy consumption NY required by the ith device is calculated i the ratio between the actual output energy consumption SJNY of the ith device i If an alarm is given if the temperature of the ith device exceeds the temperature threshold, otherwise no action is taken, wherein μ represents a preset threshold for judging whether the device is abnormal.​ The expression of the energy consumption calculation unit for energy consumption calculation is as follows: NY i = SJ i * ED i where NY i represents the energy consumption required by the i-th device, SJ i represents the usage time of the i-th device, ED i represents the rated energy consumption of the i-th device; The energy scheduling calculation unit calculates the optimal scheduling scheme by solving the following optimization model: Objective function is: minCB i = ω1CBE i,t + ω2CBD i,t s.t.: where NY i represents the energy consumption of the i-th device, CCE i,t represents the electrical energy allocated to the i-th device at the current time instant, CCD i,t represents the gas energy allocated to the i-th device at the current time instant, pE i represents the electrical energy type parameter of the i-th device, pD i represents the gas energy type parameter of the i-th device, ω1 and ω2 represent the allocation weights for solving the calculation expression, min represents the minimum function, CB i represents the energy consumption cost of the i-th device, CBE i,t represents the cost required for the electrical energy allocated to the i-th device at the current time instant, CBD i,t represents the cost required for the gas energy allocated to the i-th device at the current time instant, s.t. represents the constraint; CCE t represents the total electrical energy stored at the current time instant, CCD t represents the total gas energy stored at the current time instant.

2. The energy management system for an oil platform of claim 1, wherein: The expression of the electric energy collection unit, the solar energy collection unit and the fuel collection unit in the energy collection detection module is as follows: CC t = {CCE t-1 + E t←t-1 , CCD t-1 + D t←t-1} wherein, CC t represents the current time storage energy set, CCE t-1 +E t←t-1 represents the current time electrical energy update expression, CCD t-1 +D t←t-1 represents the current time gas energy update expression, CCE t-1 represents the previous time storage electrical energy, CCD t-1 represents the previous time storage gas energy, E t←t-1 represents the electrical energy increment from the previous time to the current time, D t←t-1 represents the gas energy increment from the previous time to the current time.

3. The energy management system for an oil platform of claim 1, wherein: The energy type parameter expression of the ith device is as follows: wherein ρE i = 0 means that the i-th device is not electrically driven, ρE i = ρe i means that the i-th device is electrically driven, and ρe i denotes the electric energy loss coefficient of the i-th device.

4. The energy management system for an oil platform of claim 3, wherein: The gas energy type parameter expression of the ith device is as follows: where ρD i = ρd1 i represents the i-th device is driven by non-electric energy, ρd1 i represents the i-th device's gas energy loss coefficient, ρD i = ρe i * γ * ρd1 i represents the i-th device is driven by electric energy, and γ represents the power generation loss.

5. The energy management method of an oil platform, applied to the energy management system of an oil platform in claim 1, characterized in that: The method comprises the following steps: S1, an energy collection detection module collects energy on the oil platform, stores the total amount of collected energy separately, and sends the total amount of collected energy to a safety detection module to update the actual stored energy; S2, an operator records the expected use time of the ith device when operating the ith device, and sends a request of the ith device to an energy scheduling module; S3, the energy scheduling module detects whether the request of the operator using the ith device is compliant, calculates an optimal scheduling scheme through an energy calculation function in an energy scheduling calculation unit after confirming compliance, and schedules through an actual scheduling unit; S4, during the scheduling process of the energy scheduling module, the safety detection module judges the energy scheduled by the energy scheduling module and the actual stored energy to avoid the situation of energy shortage, and calculates the relationship between the actual used energy of the ith device and the actual output energy of the ith device during the use of the ith device by the operator, and judges whether the ith device is abnormal according to the calculation result.

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