CN118760865B - A filling machine voltage risk control system based on cloud data - Google Patents
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Abstract
本发明公开了一种基于云端数据的灌装机电压风险管控系统，具体涉及信息技术领域，包括监测时间划分模块、电压数据采集模块、电压数据预处理模块、电压数据分析模块、电压风险综合分析模块、电压风险判断模块、人机交互模块。本发明通过电压数据采集模块从电压稳定性和电压安全性两个维度分别采集了灌装机基本数据、电压波动数据、电压保护数据以及UPS使用数据，并分析得到灌装机的电压稳定性指数和电压安全性指数，实现了电压数据的多维特征表示，通过电压风险综合分析模块对灌装机电压风险进行综合分析，全面反映了灌装机电压风险状况，为电压风险判断模块提供决策依据，避免潜在的安全事故发生。
The present invention discloses a filling machine voltage risk control system based on cloud data, which specifically relates to the field of information technology, including a monitoring time division module, a voltage data acquisition module, a voltage data preprocessing module, a voltage data analysis module, a voltage risk comprehensive analysis module, a voltage risk judgment module, and a human-computer interaction module. The present invention collects the basic data of the filling machine, the voltage fluctuation data, the voltage protection data, and the UPS usage data from the two dimensions of voltage stability and voltage safety through the voltage data acquisition module, and analyzes and obtains the voltage stability index and the voltage safety index of the filling machine, realizing the multi-dimensional feature representation of the voltage data, and comprehensively analyzing the voltage risk of the filling machine through the voltage risk comprehensive analysis module, which comprehensively reflects the voltage risk status of the filling machine, provides a decision-making basis for the voltage risk judgment module, and avoids potential safety accidents.
Description
Technical Field
The invention relates to the technical field of information, in particular to a filling voltage risk management and control system based on cloud data.
Background
The filling machine plays a crucial role in industrial production, the stability and the safety of the filling machine are directly related to the quality of products and the normal operation of a production line, voltage fluctuation is one of important factors causing the faults and the safety accidents of the filling machine, and therefore the voltage state of the filling machine needs to be monitored in real time, and potential risks are found and early warned in time, so that the downtime and the production loss caused by equipment faults are effectively reduced, and the maintenance and replacement cost of equipment is reduced.
The traditional filling machine voltage risk management and control system comprises a data acquisition module, a data analysis module and an alarm module, wherein the data acquisition module monitors voltage in the running process of the filling machine in real time, ensures that the accuracy and the instantaneity of data are guaranteed, the problem of abnormal voltage is found and processed in time through real-time monitoring and risk assessment, equipment faults and safety accidents are avoided, the data analysis module performs statistic analysis on historical voltage data to generate a report form and a chart, support is provided for production management and decision making, and when the alarm module detects abnormal voltage, the system automatically triggers an early warning or alarm mechanism to remind related personnel to take measures in time through the early warning and alarm mechanism, the hidden danger of the equipment is found in advance and processed, and the equipment fault rate and the maintenance cost are reduced.
However, in practical use, the system still has some disadvantages, such as firstly, the traditional filling voltage risk management and control system cannot comprehensively collect voltage risk data due to complex and changeable actual conditions, and secondly, the traditional filling voltage risk management and control system cannot completely adapt to all conditions due to differences of working environments and load conditions of different filling machines, so that early warning results are not accurate enough, and the system is required to be continuously optimized and adjusted in the use process so as to improve the accuracy and reliability of early warning.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present invention provides a filling voltage risk management and control system based on cloud data, which solves the problems set forth in the above-mentioned background art through the following scheme.
In order to achieve the purpose, the invention provides the following technical scheme that the filling voltage risk management and control system based on cloud data comprises the following components:
the monitoring time dividing module is used for determining the monitoring time of the target filling machine as a target time area, dividing the target time area into sub-time areas in an equal time dividing mode, and marking the sub-time areas as 1 and 2.
The voltage data acquisition module is used for acquiring voltage data of each sub-time region and comprises a voltage stability data acquisition unit and a voltage safety data acquisition unit, wherein the voltage stability data acquisition unit acquires filling machine basic data and voltage fluctuation data, and the voltage safety data acquisition unit acquires voltage protection data and UPS (uninterrupted power supply) use data and transmits various acquired data to the voltage data preprocessing module;
The voltage data preprocessing module is used for preprocessing the data acquired by the voltage data acquisition module, and comprises a voltage stabilization preprocessing unit and a voltage safety preprocessing unit, wherein the voltage stabilization preprocessing unit is used for obtaining a voltage relative change rate, a voltage deviation degree, a voltage fluctuation value and an average short-time interruption time, the voltage safety preprocessing unit is used for obtaining a voltage protection response rate, a UPS overall efficiency and a UPS energy storage efficiency, and the preprocessed data are transmitted to the voltage data analysis module;
the voltage data analysis module is used for analyzing the data transmitted by the voltage data preprocessing module, and comprises a voltage stability analysis unit and a voltage safety analysis unit, wherein a voltage stability index is obtained through the voltage stability analysis unit, a voltage safety index is obtained through the voltage safety analysis unit, and the analyzed data is transmitted to the voltage risk comprehensive analysis module;
The voltage risk comprehensive analysis module is used for establishing a voltage risk assessment model, assessing the voltage risk of the filling machine, importing the voltage stability index and the voltage safety index transmitted by the voltage data analysis module into the voltage risk assessment model to obtain a voltage risk assessment index, and transmitting an analysis result to the voltage risk judgment module;
the voltage risk judging module is used for judging the data transmitted by the voltage risk comprehensive analysis module, calculating the risk difference degree and setting the risk grade of the voltage risk assessment index, judging the risk grade of the target time area according to the voltage risk assessment index, and sending an early warning signal to the judging result;
the man-machine interaction module is used for receiving the alarm sent by the voltage risk judging module, obtaining a filling machine voltage risk report through the transmitted risk level, and checking by a manager through a system display screen;
The database is used for storing data information of all modules in the system;
preferably, the voltage stabilization data acquisition unit of the voltage data acquisition module comprises filling machine basic data and voltage fluctuation data, wherein the filling machine basic data comprise rated output voltage, rated input voltage, output voltage and input voltage of the filling machine, the rated output voltage, the rated input voltage, the output voltage and the input voltage are respectively marked as Ue, ud, uo and Ui, the voltage fluctuation data comprise voltage effective values, voltage harmonic content, voltage unbalance degree and short interruption time of electrical elements of the filling machine, the voltage unbalance degree and short interruption time are respectively marked as Cv, cz, cm and Ct, the voltage safety data acquisition unit comprises voltage protection data and UPS use data, the voltage protection data comprise overvoltage protection response speed, undervoltage protection response speed and overload protection response speed, the Vo, vu and Vl, and the UPS use data comprise absorption total power, output active power, rectifier efficiency, inverter efficiency and battery charge and discharge efficiency are respectively marked as Pz, ph, pe, pl and Pc.
Preferably, the voltage stabilization preprocessing unit in the voltage data preprocessing module is configured to establish a voltage stabilization preprocessing model, classify and summarize data transmitted by the voltage data acquisition module, and obtain a voltage relative change rate, a voltage deviation degree, a voltage fluctuation value and an average short-time interruption time, where a calculation formula of the voltage relative change rate is as follows:
,
Where Ue represents the rated output voltage of the filling machine, ud represents the rated input voltage of the filling machine, eu i represents the voltage relative change rate of the ith sub-time region, ui i represents the input voltage of the ith sub-time region, uo i represents the output voltage of the ith sub-time region, α represents the allowable change amount of the rated input voltage, and β represents the allowable change amount of the rated output voltage, such as α, β= ±10%;
the calculation formula of the voltage deviation degree is as follows:
,
Where Ec i represents the voltage deviation degree of the ith sub-time region, cv i represents the voltage effective value of the ith sub-time region, and Cv ́ represents the rated voltage effective value of the filling machine;
the calculation formula of the voltage fluctuation value is as follows:
,
Wherein Eb i represents the voltage fluctuation value of the i-th sub-time region;
The calculation formula of the average short interruption time is as follows:
,
Where Et represents the average short break time of the electrical components of the filling machine and Ct i represents the short break time of the ith sub-time zone.
Preferably, the voltage safety preprocessing unit in the voltage data preprocessing module is used for establishing a voltage safety preprocessing model, classifying and summarizing the data transmitted by the voltage data acquisition module to obtain a voltage protection response rate, a UPS overall efficiency and a UPS energy storage efficiency, wherein a calculation formula of the voltage protection response rate is as follows:
,
Wherein Dv i represents the voltage protection response rate of the ith sub-time region, vo i represents the overvoltage protection response time of the ith sub-time region, vu i represents the undervoltage protection response speed of the ith sub-time region, vl i represents the overload protection response speed of the ith sub-time region, vo Pre-preparation represents the preset value of the overvoltage protection response time, vu Pre-preparation represents the preset value of the undervoltage protection response time, and Vl Pre-preparation represents the preset value of the overload protection response time;
the calculation formula of the overall efficiency of the UPS is as follows:
,
Wherein Dz i represents the overall efficiency of the UPS in the ith sub-time area, ph i represents the output active power in the ith sub-time area, and PZ represents the total absorption power of the UPS;
the calculation formula of the UPS energy storage efficiency is as follows:
,
Where Dc i represents the UPS energy storage efficiency in the ith sub-time zone, pe i represents the rectifier efficiency in the ith sub-time zone, pl i represents the inverter efficiency in the ith sub-time zone, and Pc i represents the battery charge and discharge efficiency in the ith sub-time zone.
Preferably, the voltage stability analysis unit of the voltage data analysis module is configured to establish a voltage stability analysis model, further analyze the data transmitted by the voltage data preprocessing module, and obtain a voltage stability index, where a specific analysis formula of the voltage stability index is:
,
Wherein φ i denotes the voltage stability index of the ith sub-time region, eu i denotes the voltage relative change rate of the ith sub-time region, ec i denotes the voltage deviation degree of the ith sub-time region, eb i denotes the voltage fluctuation value of the ith sub-time region, and Et denotes the average short break time of the electrical components of the filling machine.
Preferably, the voltage safety analysis unit of the voltage data analysis module is configured to establish a voltage safety analysis model, further analyze the data transmitted by the voltage data preprocessing module, and obtain a voltage safety index, where a specific analysis formula of the voltage safety index is:
,
wherein ψ i represents the voltage safety index of the ith sub-time region, dv i represents the voltage protection response rate of the ith sub-time region, dz i represents the overall efficiency of the UPS in the ith sub-time region, and Dc i represents the energy storage efficiency of the UPS in the ith sub-time region.
Preferably, the voltage risk comprehensive analysis module calculates a voltage risk assessment index based on the voltage stability index and the voltage safety index, and extracts a maximum value and a minimum value of the voltage risk assessment index in the target time region, wherein a specific analysis formula of the voltage risk assessment index is as follows:
,
Where η denotes a voltage risk assessment index of the target time zone, Φ i denotes a voltage stability index of the i-th sub-time zone, ψ i denotes a voltage safety index of the i-th sub-time zone, μ 1 and μ 2 denote factors affecting the voltage stability index and the voltage safety index, respectively, and the maximum and minimum values of the voltage risk assessment index of the target time zone are compared by calculation and transmitted to the voltage risk judgment module.
Preferably, the risk difference degree of the voltage risk judging module is calculated by introducing the maximum value and the minimum value of the voltage risk assessment index of the target time region in the voltage risk comprehensive analysis module, and a specific calculation formula is as follows:
,
Where Y represents the risk difference degree, η max represents the target time zone voltage risk assessment index maximum value, η min represents the target time zone voltage risk assessment index minimum value, and η min is set as the lower limit value of the risk level I, η max is set as the upper limit value of the risk level I, Setting the upper limit value of the risk level II, setting the upper limit value of the voltage risk assessment index exceeding the risk level II as the risk level III, ensuring that the system can ensure the safe conversion of direct current and alternating current to provide a stable power supply for the filling machine and other electric elements when eta is smaller than or equal to eta min and the filling machine voltage is no risk, ensuring that the filling machine is in the risk level I when eta min<η≤ηmax and the mains voltage fluctuation is within an acceptable range, normally operating the system and continuously collecting and analyzing data of the filling machine and the electric elements thereof when eta max is smaller than or equal to eta and less than or equal to eta max At the moment, the filling machine is at risk level II, and the system stabilizes the voltage by adjusting the inverter through the UPS when the mains supply slightly fluctuates, wherein eta isAt this time, the filling machine is in risk level III, which indicates that the mains voltage has serious fluctuation or interruption, and the system immediately cuts off the connection with the mains and switches to a power supply state of the storage battery, so that the filling machine and the electric elements thereof work within a safety range, and the judged risk level is transmitted to the man-machine interaction module and an alarm is given.
The invention has the technical effects and advantages that:
According to the invention, the voltage data acquisition module is arranged to acquire basic data, voltage fluctuation data, voltage protection data and UPS use data of the filling machine respectively from two dimensions of voltage stability and voltage safety, the comprehensiveness of the data acquisition range is improved, the voltage data preprocessing module and the voltage data analysis module are arranged to calculate the voltage stability index and the voltage safety index of the filling machine, the multidimensional characteristic representation of the voltage data is realized, the data processing result is more representative, the voltage risk comprehensive analysis module is arranged to comprehensively analyze the voltage risk of the filling machine to obtain the voltage risk assessment index, the voltage risk condition of the filling machine is comprehensively reflected, a decision basis is provided for the voltage risk judgment module, the safety of the filling machine can be more accurately judged through comprehensive analysis, and early warning signals can be timely sent out, so that potential safety accidents are avoided;
According to the invention, the voltage risk judging module is arranged to judge the data transmitted by the voltage risk comprehensive analysis module, and the voltage risk grade is set according to the upper limit value and the lower limit value of the voltage risk assessment index stored in the cloud, so that the risk grade judgment is carried out on the fluctuation condition of the commercial power and the condition of the filling machine, the early warning accuracy is improved, the influence of the fluctuation of the commercial power on the filling machine and the electric elements thereof is reduced, and the unnecessary maintenance cost is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a flow chart of the system operation of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The filling machine voltage risk management and control system based on cloud data shown in the attached figure 1 comprises a monitoring time dividing module, a voltage data acquisition module, a voltage data preprocessing module, a voltage data analysis module, a voltage risk comprehensive analysis module, a database, a voltage risk judging module and a man-machine interaction module.
The output end of the monitoring time dividing module is in telecommunication connection with the input end of the voltage data acquisition module, the output end of the voltage data acquisition module is in telecommunication connection with the input end of the voltage data preprocessing module, the output end of the voltage data preprocessing module is in telecommunication connection with the input end of the voltage data analysis module, the output end of the voltage data analysis module is in telecommunication connection with the input end of the voltage risk comprehensive analysis module, the output end of the database is in telecommunication connection with the input end of the voltage risk comprehensive analysis module, the output end of the voltage risk comprehensive analysis module is in telecommunication connection with the input end of the voltage risk judgment module, and the output end of the voltage risk judgment module is in telecommunication connection with the input end of the man-machine interaction module.
The monitoring time dividing module is used for determining the monitoring time of the target filling machine as a target time area, dividing the target time area into sub-time areas in an equal time dividing mode, and marking the sub-time areas as 1 and 2.
In this embodiment, it is to be specifically described that, by installing the voltage monitoring device in the target time zone, the grid voltage condition of the target filling machine is monitored in real time, and a suitable time division precision is selected according to the actual requirement, including every second, every half second and every millisecond.
The voltage data acquisition module is used for acquiring voltage data of each sub-time region and comprises a voltage stability data acquisition unit and a voltage safety data acquisition unit, wherein the voltage stability data acquisition unit acquires filling machine basic data and voltage fluctuation data, and the voltage safety data acquisition unit acquires voltage protection data and UPS (uninterrupted Power supply) use data and transmits various acquired data to the voltage data preprocessing module.
In this embodiment, it is to be specifically described that the voltage stabilization data acquisition unit includes basic data of the filling machine and voltage fluctuation data, where the basic data of the filling machine includes rated output voltage, rated input voltage, output voltage and input voltage of the filling machine, which are respectively recorded as Ue, ud, uo and Ui, the voltage fluctuation data includes voltage effective values, voltage harmonic content, voltage unbalance and short interruption time of electrical elements of the filling machine, which are respectively recorded as Cv, cz, cm and Ct, the basic data of the filling machine is acquired by installing voltage sensors on a power input end, a key motor and a control circuit of the filling machine, the voltage fluctuation data is acquired by sampling and digitizing current signals through an electric energy quality analyzer and combining fast fourier transformation, and the acquired data is stored in a cloud computing platform through a cloud server, and is transmitted to the voltage data preprocessing module.
In this embodiment, it is specifically described that the voltage safety data collection unit includes voltage protection data and UPS usage data, where the voltage protection data includes an overvoltage protection response speed, an undervoltage protection response speed, and an overload protection response speed, which are respectively recorded as Vo, vu, and Vl, the UPS usage data includes an absorption total power, an output active power, rectifier efficiency, inverter efficiency, and battery charging and discharging efficiency, which are respectively recorded as Pz, ph, pe, pl and Pc, the overvoltage protection response speed is a speed at which a power supply is disconnected or a controlled device voltage is reduced when a voltage exceeds a predetermined maximum value, the undervoltage protection response speed is a speed at which a line voltage is reduced to a critical voltage, the overload protection response speed is a speed at which a load is disconnected or reduced when a load exceeds a rated value thereof, the UPS is an uninterruptible power supply, the UPS usage data is data collected during a voltage stabilizing process, the rectifier, the inverter efficiency is an efficiency of converting ac power into dc power for the battery charging and discharging efficiency of the battery, the inverter efficiency is an efficiency of converting ac power in the battery into dc power charging and discharging efficiency in the charging and discharging efficiency of the battery during the voltage stabilizing process.
The voltage data preprocessing module is used for preprocessing the data acquired by the voltage data acquisition module, and comprises a voltage stabilization preprocessing unit and a voltage safety preprocessing unit, wherein the voltage stabilization preprocessing unit is used for obtaining the voltage relative change rate, the voltage deviation degree, the voltage fluctuation value and the average short-time interruption time, the voltage safety preprocessing unit is used for obtaining the voltage protection response rate, the UPS overall efficiency and the UPS energy storage efficiency, and the preprocessed data is transmitted to the voltage data analysis module.
In this embodiment, it needs to be specifically described that the voltage stabilization preprocessing unit in the voltage data preprocessing module is configured to establish a voltage stabilization preprocessing model, classify and summarize data transmitted by the voltage data acquisition module, and obtain a voltage relative change rate, a voltage deviation degree, a voltage fluctuation value, and an average short interruption time, where a calculation formula of the voltage relative change rate is as follows:
,
Where Ue represents the rated output voltage of the filling machine, ud represents the rated input voltage of the filling machine, eu i represents the voltage relative change rate of the ith sub-time region, ui i represents the input voltage of the ith sub-time region, uo i represents the output voltage of the ith sub-time region, α represents the allowable change amount of the rated input voltage, and β represents the allowable change amount of the rated output voltage, such as α, β= ±10%;
the calculation formula of the voltage deviation degree is as follows:
,
Where Ec i represents the voltage deviation degree of the ith sub-time region, cv i represents the voltage effective value of the ith sub-time region, and Cv ́ represents the rated voltage effective value of the filling machine;
the calculation formula of the voltage fluctuation value is as follows:
,
Wherein Eb i represents the voltage fluctuation value of the i-th sub-time region;
The calculation formula of the average short interruption time is as follows:
,
Where Et represents the average short break time of the electrical components of the filling machine and Ct i represents the short break time of the ith sub-time zone.
In this embodiment, it needs to be specifically described that the voltage safety preprocessing unit in the voltage data preprocessing module is used for establishing a voltage safety preprocessing model, and classifying and summarizing the data transmitted by the voltage data acquisition module to obtain a voltage protection response rate, UPS overall efficiency and UPS energy storage efficiency, where a calculation formula of the voltage protection response rate is as follows:
,
Wherein Dv i represents the voltage protection response rate of the ith sub-time region, vo i represents the overvoltage protection response time of the ith sub-time region, vu i represents the undervoltage protection response speed of the ith sub-time region, vl i represents the overload protection response speed of the ith sub-time region, vo Pre-preparation represents the preset value of the overvoltage protection response time, vu Pre-preparation represents the preset value of the undervoltage protection response time, and Vl Pre-preparation represents the preset value of the overload protection response time.
The calculation formula of the overall efficiency of the UPS is as follows:
,
Wherein Dz i represents the overall efficiency of the UPS in the ith sub-time zone, ph i represents the output active power in the ith sub-time zone, and PZ represents the total absorbed power of the UPS.
The calculation formula of the UPS energy storage efficiency is as follows:
,
Where Dc i represents the UPS energy storage efficiency in the ith sub-time zone, pe i represents the rectifier efficiency in the ith sub-time zone, pl i represents the inverter efficiency in the ith sub-time zone, and Pc i represents the battery charge and discharge efficiency in the ith sub-time zone.
The voltage data analysis module is used for analyzing the data transmitted by the voltage data preprocessing module, and comprises a voltage stability analysis unit and a voltage safety analysis unit, wherein the voltage stability index is obtained through the voltage stability analysis unit, the voltage safety index is obtained through the voltage safety analysis unit, and the analyzed data is transmitted to the voltage risk comprehensive analysis module.
In this embodiment, it needs to be specifically described that the voltage stability analysis unit is configured to establish a voltage stability analysis model, further analyze the data transmitted by the voltage data preprocessing module, and obtain a voltage stability index, where a specific analysis formula of the voltage stability index is:
,
Wherein φ i denotes the voltage stability index of the ith sub-time region, eu i denotes the voltage relative change rate of the ith sub-time region, ec i denotes the voltage deviation degree of the ith sub-time region, eb i denotes the voltage fluctuation value of the ith sub-time region, and Et denotes the average short break time of the electrical components of the filling machine.
In this embodiment, it needs to be specifically described that the voltage safety analysis unit is configured to establish a voltage safety analysis model, further analyze the data transmitted by the voltage data preprocessing module, and obtain a voltage safety index, where a specific analysis formula of the voltage safety index is:
wherein ψ i represents the voltage safety index of the ith sub-time region, dv i represents the voltage protection response rate of the ith sub-time region, dz i represents the overall efficiency of the UPS in the ith sub-time region, and Dc i represents the energy storage efficiency of the UPS in the ith sub-time region.
The voltage risk comprehensive analysis module is used for establishing a voltage risk assessment model, assessing the voltage risk of the filling machine, importing the voltage stability index and the voltage safety index transmitted by the voltage data analysis module into the voltage risk assessment model to obtain a voltage risk assessment index, and transmitting an analysis result to the voltage risk judgment module.
In this embodiment, it is to be specifically described that the voltage risk comprehensive analysis module calculates a voltage risk assessment index based on a voltage stability index and a voltage safety index, and extracts a maximum value and a minimum value of the voltage risk assessment index in a target time region, where a specific analysis formula of the voltage risk assessment index is as follows:
,
Where η denotes a voltage risk assessment index of the target time zone, Φ i denotes a voltage stability index of the i-th sub-time zone, ψ i denotes a voltage safety index of the i-th sub-time zone, μ 1 and μ 2 denote factors affecting the voltage stability index and the voltage safety index, respectively, and the maximum and minimum values of the voltage risk assessment index of the target time zone are compared by calculation and transmitted to the voltage risk judgment module.
The voltage risk judging module is used for judging the data transmitted by the voltage risk comprehensive analysis module, calculating the risk difference degree and setting the risk grade of the voltage risk assessment index, judging the risk grade of the target time area according to the voltage risk assessment index, and sending an early warning signal to the judging result.
In this embodiment, it is to be specifically described that the risk difference is calculated by introducing the maximum value and the minimum value of the risk assessment index of the target time region in the risk comprehensive analysis module, and the specific calculation formula is as follows:
,
Where Y represents the risk difference degree, η max represents the target time zone voltage risk assessment index maximum value, η min represents the target time zone voltage risk assessment index minimum value, and η min is set as the lower limit value of the risk level I, η max is set as the upper limit value of the risk level I, Setting the upper limit value of the risk level II, setting the upper limit value of the voltage risk assessment index exceeding the risk level II as the risk level III, ensuring that the system can ensure the safe conversion of direct current and alternating current to provide a stable power supply for the filling machine and other electric elements when eta is smaller than or equal to eta min and the filling machine voltage is no risk, ensuring that the filling machine is in the risk level I when eta min<η≤ηmax and the mains voltage fluctuation is within an acceptable range, normally operating the system and continuously collecting and analyzing data of the filling machine and the electric elements thereof when eta max is smaller than or equal to eta and less than or equal to eta max At the moment, the filling machine is at risk level II, and the system stabilizes the voltage by adjusting the inverter through the UPS when the mains supply slightly fluctuates, wherein eta isAt this time, the filling machine is in risk level III, which indicates that the mains voltage has serious fluctuation or interruption, and the system immediately cuts off the connection with the mains and switches to a power supply state of the storage battery, so that the filling machine and the electric elements thereof work within a safety range, and the judged risk level is transmitted to the man-machine interaction module and an alarm is given.
The man-machine interaction module is used for receiving the alarm sent by the voltage risk judging module, obtaining a filling machine voltage risk report through the transmitted risk level, checking by a manager through the system display screen, checking whether the system works normally or not if the transmitted risk level is in the risk level II and the risk level III, and optimizing and adjusting the system through the working state to ensure the safe operation of the filling machine and the electric elements thereof.
The database is used for storing data information of all modules in the system.
As shown in fig. 2, the embodiment provides an operation flow of the filling voltage risk management and control system based on cloud data, which includes the following steps:
S1, acquiring overvoltage protection response speed, undervoltage protection response speed, overload protection response speed, total absorption power, output active power, rectifier efficiency, inverter efficiency and storage battery charge and discharge efficiency;
S2, calculating a voltage relative change rate, a voltage deviation degree, a voltage fluctuation value, an average short interruption time, a voltage protection response rate, UPS overall efficiency and UPS energy storage efficiency;
S3, calculating a voltage stability index based on the voltage relative change rate, the voltage deviation degree, the voltage fluctuation value and the average short interruption time, and calculating a voltage safety index based on the voltage protection response rate, the UPS overall efficiency and the UPS energy storage efficiency;
S4, calculating a voltage risk assessment index based on the voltage stability index and the voltage safety index;
s5, setting risk levels for voltage risk judgment, determining the upper limit and the lower limit of each risk level, and taking different countermeasures for different risk levels;
And S6, receiving based on the voltage risk judging result, and if the transmitted risk level is higher, checking whether the system works normally or not by a manager, and optimizing and adjusting the system through the working state to ensure the safe operation of the filling machine and the electric elements thereof.
In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;
finally, the foregoing description of the preferred embodiment of the invention is provided for the purpose of illustration only, and is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. Filling voltage risk management and control system based on high in clouds data, its characterized in that includes:
The monitoring time dividing module is used for determining the monitoring time of the target filling machine as a target time area, dividing the target time area into sub-time areas in an equal time dividing mode, and marking the sub-time areas as 1 and 2.
The voltage data acquisition module is used for acquiring voltage data of each sub-time region and comprises a voltage stability data acquisition unit and a voltage safety data acquisition unit, wherein the voltage stability data acquisition unit acquires filling machine basic data and voltage fluctuation data, and the voltage safety data acquisition unit acquires voltage protection data and UPS (uninterrupted power supply) use data and transmits various acquired data to the voltage data preprocessing module;
the voltage stabilization data acquisition unit comprises filling machine basic data and voltage fluctuation data, wherein the filling machine basic data comprise rated output voltage, rated input voltage, output voltage and input voltage of the filling machine, which are respectively marked as Ue, ud, uo and Ui, and the voltage fluctuation data comprise voltage effective values, voltage harmonic content, voltage unbalance degree and short interruption time of the electrical elements of the filling machine, which are respectively marked as Cv, cz, cm and Ct;
The voltage data preprocessing module is used for preprocessing the data acquired by the voltage data acquisition module, and comprises a voltage stabilization preprocessing unit and a voltage safety preprocessing unit, wherein the voltage stabilization preprocessing unit is used for obtaining a voltage relative change rate, a voltage deviation degree, a voltage fluctuation value and an average short-time interruption time, and the voltage safety preprocessing unit is used for obtaining a voltage protection response rate, a UPS overall efficiency and a UPS energy storage efficiency and transmitting the preprocessed data to the voltage data analysis module;
The voltage data analysis module is used for analyzing the data transmitted by the voltage data preprocessing module, and comprises a voltage stability analysis unit and a voltage safety analysis unit, wherein a voltage stability index is obtained through the voltage stability analysis unit, a voltage safety index is obtained through the voltage safety analysis unit, and the analyzed data is transmitted to the voltage risk comprehensive analysis module;
The voltage risk comprehensive analysis module is used for establishing a voltage risk assessment model, assessing the voltage risk of the filling machine, importing the voltage stability index and the voltage safety index transmitted by the voltage data analysis module into the voltage risk assessment model to obtain a voltage risk assessment index, and transmitting an analysis result to the voltage risk judgment module;
The voltage risk judging module is used for judging the data transmitted by the voltage risk comprehensive analysis module, calculating the risk difference degree and setting the risk grade of the voltage risk assessment index, judging the risk grade of the target time area according to the voltage risk assessment index, and sending an early warning signal to the judging result;
the man-machine interaction module is used for receiving the alarm sent by the voltage risk judging module, obtaining a filling machine voltage risk report through the transmitted risk level, and checking by a manager through a system display screen;
And the database is used for storing data information of all modules in the system.
2. The filling machine voltage risk management and control system based on cloud data as set forth in claim 1, wherein the voltage safety data collection unit in the voltage data collection module comprises voltage protection data and UPS usage data, the voltage protection data comprises overvoltage protection response speed, undervoltage protection response speed and overload protection response speed, which are respectively marked as Vo, vu and Vl, and the UPS usage data comprises absorbed total power, output active power, rectifier efficiency, inverter efficiency and storage battery charging and discharging efficiency, which are respectively marked as Pz, ph, pe, pl and Pc.
3. The filling machine voltage risk management and control system based on cloud data as set forth in claim 1, wherein the voltage stabilization pretreatment unit in the voltage data pretreatment module is configured to establish a voltage stabilization pretreatment model, classify and summarize data transmitted by the voltage data acquisition module, and obtain a calculation formula of a voltage relative change rate, a voltage deviation degree, a voltage fluctuation value and an average short interruption time, wherein the calculation formula of the voltage relative change rate is as follows:
,
Where Ue represents the rated output voltage of the filling machine, ud represents the rated input voltage of the filling machine, eu i represents the voltage relative change rate of the ith sub-time region, ui i represents the input voltage of the ith sub-time region, uo i represents the output voltage of the ith sub-time region, α represents the allowable change amount of the rated input voltage, and β represents the allowable change amount of the rated output voltage, such as α, β= ±10%;
the calculation formula of the voltage deviation degree is as follows:
,
Where Ec i represents the voltage deviation degree of the ith sub-time region, cv i represents the voltage effective value of the ith sub-time region, and Cv ́ represents the rated voltage effective value of the filling machine;
the calculation formula of the voltage fluctuation value is as follows:
,
Wherein Eb i represents the voltage fluctuation value of the i-th sub-time region;
The calculation formula of the average short interruption time is as follows:
,
Where Et represents the average short break time of the electrical components of the filling machine and Ct i represents the short break time of the ith sub-time zone.
4. The filling machine voltage risk management and control system based on cloud data of claim 1, wherein the voltage safety preprocessing unit in the voltage data preprocessing module is used for establishing a voltage safety preprocessing model, classifying and summarizing data transmitted by the voltage data acquisition module to obtain voltage protection response rate, UPS overall efficiency and UPS energy storage efficiency, and the calculation formula of the voltage protection response rate is as follows:
,
Wherein Dv i represents the voltage protection response rate of the ith sub-time region, vo i represents the overvoltage protection response time of the ith sub-time region, vu i represents the undervoltage protection response speed of the ith sub-time region, vl i represents the overload protection response speed of the ith sub-time region, vo Pre-preparation represents the preset value of the overvoltage protection response time, vu Pre-preparation represents the preset value of the undervoltage protection response time, and Vl Pre-preparation represents the preset value of the overload protection response time;
the calculation formula of the overall efficiency of the UPS is as follows:
,
Wherein Dz i represents the overall efficiency of the UPS in the ith sub-time area, ph i represents the output active power in the ith sub-time area, and PZ represents the total absorption power of the UPS;
the calculation formula of the UPS energy storage efficiency is as follows:
,
Where Dc i represents the UPS energy storage efficiency in the ith sub-time zone, pe i represents the rectifier efficiency in the ith sub-time zone, pl i represents the inverter efficiency in the ith sub-time zone, and Pc i represents the battery charge and discharge efficiency in the ith sub-time zone.
5. The filling machine voltage risk management and control system based on cloud data as set forth in claim 1, wherein the voltage stability analysis unit of the voltage data analysis module is configured to establish a voltage stability analysis model, further analyze the data transmitted by the voltage data preprocessing module to obtain a voltage stability index, and a specific analysis formula of the voltage stability index is as follows:
,
Wherein φ i denotes the voltage stability index of the ith sub-time region, eu i denotes the voltage relative change rate of the ith sub-time region, ec i denotes the voltage deviation degree of the ith sub-time region, eb i denotes the voltage fluctuation value of the ith sub-time region, and Et denotes the average short break time of the electrical components of the filling machine.
6. The filling machine voltage risk management and control system based on cloud data of claim 1, wherein the voltage safety analysis unit of the voltage data analysis module is used for establishing a voltage safety analysis model, further analyzing the data transmitted by the voltage data preprocessing module to obtain a voltage safety index, and a specific analysis formula of the voltage safety index is as follows:
,
wherein ψ i represents the voltage safety index of the ith sub-time region, dv i represents the voltage protection response rate of the ith sub-time region, dz i represents the overall efficiency of the UPS in the ith sub-time region, and Dc i represents the energy storage efficiency of the UPS in the ith sub-time region.
7. The filling machine voltage risk management and control system based on cloud data as set forth in claim 1, wherein the voltage risk comprehensive analysis module calculates a voltage risk assessment index based on a voltage stability index and a voltage safety index and extracts a maximum value and a minimum value of the voltage risk assessment index in a target time zone, and a specific analysis formula of the voltage risk assessment index is as follows:
,
Where η denotes a voltage risk assessment index of the target time zone, Φ i denotes a voltage stability index of the i-th sub-time zone, ψ i denotes a voltage safety index of the i-th sub-time zone, μ 1 and μ 2 denote factors affecting the voltage stability index and the voltage safety index, respectively, and the maximum and minimum values of the voltage risk assessment index of the target time zone are compared by calculation and transmitted to the voltage risk judgment module.
8. The filling machine voltage risk management and control system based on cloud data as set forth in claim 1, wherein the risk difference degree of the voltage risk judging module is calculated by a maximum value and a minimum value of a voltage risk evaluation index of a target time region imported into the voltage risk comprehensive analysis module, and a specific calculation formula is as follows:
,
Where Y represents the risk difference degree, η max represents the target time zone voltage risk assessment index maximum value, η min represents the target time zone voltage risk assessment index minimum value, and η min is set as the lower limit value of the risk level I, η max is set as the upper limit value of the risk level I, Setting the upper limit value of the risk level II, setting the upper limit value of the voltage risk assessment index exceeding the risk level II as the risk level III, ensuring that the system can ensure the safe conversion of direct current and alternating current to provide a stable power supply for the filling machine and other electric elements when eta is smaller than or equal to eta min and the filling machine voltage is no risk, ensuring that the filling machine is in the risk level I when eta min<η≤ηmax and the mains voltage fluctuation is within an acceptable range, normally operating the system and continuously collecting and analyzing data of the filling machine and the electric elements thereof when eta max is smaller than or equal to eta and less than or equal to eta max At the moment, the filling machine is at risk level II, and the system stabilizes the voltage by adjusting the inverter through the UPS when the mains supply slightly fluctuates, wherein eta isAt this time, the filling machine is in risk level III, which indicates that the mains voltage has serious fluctuation or interruption, and the system immediately cuts off the connection with the mains and switches to a power supply state of the storage battery, so that the filling machine and the electric elements thereof work within a safety range, and the judged risk level is transmitted to the man-machine interaction module and an alarm is given.
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