阅读说明：本技术 一种工厂用电超负荷自动报警的控制逻辑方法 (Control logic method for automatic alarm of factory power utilization overload ) 是由 聂建伟 任文星 于 2021-08-17 设计创作，主要内容包括：本发明公开了一种工厂用电超负荷自动报警的控制逻辑方法,包括以下步骤：S1、智能电表标号与电脑上位机通讯；S2、电脑上位机设定每个智能电表的警戒负荷量；S3、实时监控每个智能电表的用电负荷量,当超过了警戒负荷量时,电脑上位机确定计算异常风险等级并发出不同报警等级信号给PLC；S4、PLC根据报警等级控制对应厂区的报警器报警；S5、作业人员接收到报警信息后做对应报警解除处理,当每个智能电表用电负荷量低于警戒负荷量时,停止报警,用电负荷量高于警戒负荷量并持续设定时间时,PLC控制智能电表断电。该控制逻辑方法监控工厂各厂区的用电情况,根据用电的异常情况程度发出不同程度的报警提示,减少用电事故的发生。(The invention discloses a control logic method for automatic alarm of factory power utilization overload, which comprises the following steps: s1, communicating the intelligent electric meter label with a computer upper computer; s2, setting the warning load of each intelligent electric meter by the computer upper computer; s3, monitoring the power consumption load of each intelligent electric meter in real time, and when the power consumption load exceeds the warning load, determining and calculating abnormal risk levels by the upper computer of the computer and sending signals of different alarm levels to the PLC; s4, the PLC controls the alarm of the corresponding factory according to the alarm level to give an alarm; and S5, performing corresponding alarm cancellation processing after the operator receives the alarm information, stopping alarming when the power consumption load of each intelligent electric meter is lower than the warning load, and controlling the intelligent electric meters to power off by the PLC when the power consumption load is higher than the warning load and the time is continuously set. The control logic method monitors the power utilization condition of each factory area of the factory, and sends out alarm prompts in different degrees according to the abnormal condition degree of the power utilization, so that the occurrence of power utilization accidents is reduced.)

1. A control logic method for automatic alarm of factory power utilization overload is characterized in that: the method comprises the following steps:

s1, labeling the intelligent electric meters of each factory area of the factory, wherein each intelligent electric meter is communicated with a computer upper computer;

s2, setting the warning load of each intelligent electric meter per hour by the computer upper computer according to the total power consumption of the electric equipment connected with each intelligent electric meter;

s3, monitoring the hourly power consumption load of each intelligent electric meter in real time by the upper computer, and determining and calculating the abnormal risk grade of the abnormal intelligent electric meter and sending signals of different alarm grades to the PLC by the upper computer when the power consumption load exceeds the warning load;

s4, the PLC controls the alarm of the corresponding factory according to the alarm level to give an alarm;

and S5, after receiving the alarm information, the operator performs corresponding alarm cancellation processing according to the operation instruction, at the moment, the upper computer of the computer continues to perform the step S3, when the hourly power consumption load of each intelligent electric meter is lower than the warning load, the upper computer of the computer controls the PLC to stop alarming, and when the hourly power consumption load of each intelligent electric meter is higher than the warning load and continues for the set time, the upper computer of the computer sends a power-off command, and the PLC controls the intelligent electric meter to power off.

2. The control logic method for automatic alarm of factory power overload according to claim 1, characterized in that: and each intelligent electric meter is communicated with a computer upper computer by adopting a Modbus485 bus.

3. The control logic method for automatic alarm of factory power overload according to claim 2, characterized in that: the method for determining the abnormal risk level by the upper computer in the step S3 comprises the following steps:

when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds the warning load and is lower than 1.1 times of the warning load, a primary alarm signal is sent out; when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds 1.1 times of the warning load and is lower than 1.3 times of the warning load, a secondary alarm signal is sent out; and when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds 1.3 times of the warning load, sending out a highest three-level alarm signal.

4. A control logic method for automatic alarm of factory power overload according to claim 3, characterized in that: and when the upper computer sends out a three-level alarm signal, the upper computer sends the alarm signal to a plant area manager corresponding to the abnormal intelligent computer in a short message or telephone mode.

5. The control logic method for automatic alarm of factory power overload according to claim 4, characterized in that: the alarm adopts sound-light alarm, and sends alarm indicator lamps with different colors and alarm sounds with different frequencies according to different alarm signal grades, and the higher the alarm signal grade is, the higher the alarm sound frequency is.

6. The control logic method for automatic alarm of factory power overload according to claim 5, characterized in that: and the determination of the warning load amount is determined by the load of the transformer corresponding to each intelligent electric meter.

Technical Field

The invention relates to a control logic method for automatic alarm of factory power utilization overload, which is used for intelligently monitoring power utilization of a plurality of factory areas in a factory.

Background

Along with the development of automation, the power consumption of each factory area of a factory is more and more required to be managed and controlled in the process, so that potential safety hazards can be found in time and major accidents can be prevented. Some alarming modes in abnormal power utilization of factories exist currently, and can be mainly summarized into the following two methods:

1. the method for manually and regularly inspecting the power supply room comprises the following steps: the operating personnel regularly check the power utilization condition of each plant area from the power supply room, report related personnel in time when abnormality is found, and determine whether power failure is needed according to actual conditions. Because the regular inspection is carried out manually, the abnormal power utilization of a factory is easy to occur, and the abnormal power utilization of the factory cannot be found in time, so that major accidents are caused.

2. The method for remotely acquiring the information of the electric meters of the power supply room comprises the following steps: the monitoring room remotely collects data information of each ammeter of the power supply room, prompt information is displayed on a computer on duty when power utilization abnormity is found, and a person on duty in the monitoring room determines whether power failure needs to be carried out according to actual conditions after the prompt information is found. Because the information is displayed by the computer, the information can not be received in time when the personnel go out and the power failure occurs.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the control logic method can monitor the power utilization condition of each factory area of the factory, and send out alarm prompts of different degrees according to the abnormal condition degree of the power utilization condition, thereby reducing the occurrence of power utilization accidents.

In order to solve the technical problems, the technical scheme of the invention is as follows: a control logic method for automatic alarm of factory power overload comprises the following steps:

s1, labeling the intelligent electric meters of each factory area of the factory, wherein each intelligent electric meter is communicated with a computer upper computer;

s2, setting the warning load of each intelligent electric meter per hour by the computer upper computer according to the total power consumption of the electric equipment connected with each intelligent electric meter;

s3, monitoring the hourly power consumption load of each intelligent electric meter in real time by the upper computer, and determining and calculating the abnormal risk grade of the abnormal intelligent electric meter and sending signals of different alarm grades to the PLC by the upper computer when the power consumption load exceeds the warning load;

s4, the PLC controls the alarm of the corresponding factory according to the alarm level to give an alarm;

and S5, after receiving the alarm information, the operator performs corresponding alarm cancellation processing according to the operation instruction, at the moment, the upper computer of the computer continues to perform the step S3, when the hourly power consumption load of each intelligent electric meter is lower than the warning load, the upper computer of the computer controls the PLC to stop alarming, and when the hourly power consumption load of each intelligent electric meter is higher than the warning load and continues for the set time, the upper computer of the computer sends a power-off command, and the PLC controls the intelligent electric meter to power off.

As a preferable scheme, each intelligent electric meter is communicated with a computer upper computer by adopting a Modbus485 bus.

As a preferable scheme, the method for determining the abnormal risk level by the upper computer in the step S3 includes:

when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds the warning load and is lower than 1.1 times of the warning load, a primary alarm signal is sent out; when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds 1.1 times of the warning load and is lower than 1.3 times of the warning load, a secondary alarm signal is sent out; and when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds 1.3 times of the warning load, sending out a highest three-level alarm signal.

As a preferred scheme, when the computer upper computer sends out a three-level alarm signal, the computer upper computer sends the alarm signal to a factory manager corresponding to the abnormal intelligent computer in a short message or telephone mode.

As a preferable scheme, the alarm adopts an audible and visual alarm mode, and sends alarm indicator lamps with different colors and alarm sounds with different frequencies according to different alarm signal grades, wherein the higher the alarm signal grade is, the higher the alarm sound frequency is.

Preferably, the determination of the warning load amount is determined by the load of the transformer corresponding to each smart meter.

After the technical scheme is adopted, the invention has the effects that: due to the control logic method, the method comprises the following steps: s1, labeling the intelligent electric meters of each factory area of the factory, wherein each intelligent electric meter is communicated with a computer upper computer; s2, setting the warning load of each intelligent electric meter per hour by the computer upper computer according to the total power consumption of the electric equipment connected with each intelligent electric meter; s3, monitoring the hourly power consumption load of each intelligent electric meter in real time by the upper computer, and determining and calculating the abnormal risk grade of the abnormal intelligent electric meter and sending signals of different alarm grades to the PLC by the upper computer when the power consumption load exceeds the warning load; s4, the PLC controls the alarm of the corresponding factory according to the alarm level to give an alarm; s5, after receiving the alarm information, the operator does corresponding alarm cancellation processing according to the operation instruction, at the moment, the upper computer of the computer continues to step S3, when the hourly electricity consumption load of each intelligent electric meter is lower than the warning load, the upper computer of the computer controls the PLC to stop alarming, when the electricity consumption load of the intelligent electric meter is higher than the warning load and the set time is continued, the upper computer of the computer sends a power-off command, the PLC controls the intelligent electric meter to power off, therefore, the upper computer of the computer monitors the electricity consumption load of each intelligent electric meter in unit time in real time, when the electricity consumption load is abnormal and exceeds the warning load, the upper computer of the computer determines to change the risk level and sends out a non-passing alarm signal to prompt alarm, then the operator can conveniently operate according to the alarm signals of different levels, and meanwhile, the operator does not deal with the abnormal situation when the set time is exceeded, the PLC controls the intelligent electric meter to be powered off, so that the safety performance is further improved.

In step S3, the method for determining the abnormal risk level by the upper computer includes:

when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds the warning load and is lower than 1.1 times of the warning load, a primary alarm signal is sent out; when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds 1.1 times of the warning load and is lower than 1.3 times of the warning load, a secondary alarm signal is sent out; when the electricity utilization load of the intelligent ammeter monitored by the computer upper computer exceeds 1.3 times of the warning load, the highest three-level alarm signal is sent out, so that an operator can judge the severity of the abnormal condition according to the grade of the signal by setting the three-level alarm signal, and the abnormal severe event is preferentially processed.

And when the upper computer sends out a three-level alarm signal, the alarm signal is sent to a plant area manager corresponding to the abnormal intelligent computer in a short message or telephone mode, when the three-level alarm signal is in a serious abnormal condition, the abnormal condition is sent out, a sound-light alarm is sent out, the plant area manager is directly informed in a short message or telephone mode, the plant area manager can make operation indication operation as soon as possible, and the notice of the alarm signal can be transmitted to an operator at the first time.

And because the warning load is determined by the load of the transformer corresponding to each intelligent electric meter, the damage of the transformer can be avoided after the boundary load is determined according to the load of the transformer.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic diagram of a structural system of an embodiment of the present invention;

FIG. 2 is a flow chart of the control logic method of the present invention;

in the drawings: 1. a smart meter; 2. a computer upper computer; 3, PLC; 4. an alarm.

Detailed Description

The present invention is described in further detail below with reference to specific examples.

As shown in fig. 1 and 2, a control logic method for automatic alarm of overload of power utilization in a factory includes the following steps:

s1, labeling the intelligent electric meters 1 of each factory area of the factory, wherein each intelligent electric meter 1 is communicated with a computer upper computer 2; and each intelligent electric meter 1 is communicated with the computer upper computer 2 by adopting a Modbus485 bus. Under the general condition, each intelligent electric meter 1 can have a corresponding transformer to be matched, so that the electric equipment corresponding to the intelligent electric meter 1 can meet the load requirement.

S2, setting the warning load of each intelligent electric meter 1 in each hour by the computer upper computer 2 according to the total power consumption of the electric equipment connected with each intelligent electric meter 1; the determination of the warning load amount is determined by the load of the transformer corresponding to each intelligent ammeter 1.

S3, the computer upper computer 2 monitors the electricity load of each intelligent electric meter 1 in real time, and when the electricity load exceeds the warning load, the computer upper computer 2 determines to calculate the abnormal risk level of the abnormal intelligent electric meter 1 and sends different alarm level signals to the PLC 3; in this embodiment, the method for determining the abnormal risk level by the computer upper computer 2 in step S3 includes:

when the electricity utilization load of the intelligent ammeter 1 monitored by the computer upper computer 2 exceeds the warning load and is lower than 1.1 times of the warning load, a primary alarm signal is sent; when the power consumption load of the intelligent ammeter 1 monitored by the computer upper computer 2 exceeds 1.1 times of the warning load and is lower than 1.3 times of the warning load, a secondary alarm signal is sent; when the electricity utilization load of the intelligent electric meter 1 monitored by the computer upper computer 2 exceeds 1.3 times of the warning load, the highest three-level alarm signal is sent out. And when the computer upper computer 2 sends out a three-level alarm signal, the alarm signal is sent to a factory manager corresponding to the abnormal intelligent computer in a short message or telephone mode. The plant manager is used as a superior leader of the operating personnel, and can further supervise and assist to inform the operating personnel, so that the situation that the alarm signal is not received smoothly is avoided.

S4, the PLC3 controls the alarm 4 corresponding to the factory to give an alarm according to the alarm level;

the alarm 4 adopts sound and light alarm, and sends alarm indicator lamps with different colors and alarm sounds with different frequencies according to different alarm signal grades, wherein the higher the alarm signal grade is, the higher the alarm sound frequency is.

And S5, after receiving the alarm information, the operator performs corresponding alarm cancellation processing according to the operation instruction, at the moment, the computer upper computer 2 continues to perform the step S3, when the hourly power consumption load of each intelligent electric meter 1 is lower than the warning load, the computer upper computer 2 controls the PLC3 to stop alarming, and when the power consumption load of the intelligent electric meter 1 is higher than the warning load and continues for the set time, the computer upper computer 2 sends a power-off command, and the PLC3 controls the intelligent electric meter 1 to be powered off.

The control logic method in the embodiment utilizes the connection of the computer upper computer 2 and the intelligent electric meter 1 to monitor the electricity consumption of the intelligent electric meter 1 in real time every hour, so as to judge whether a certain intelligent electric meter 1 has abnormal electricity consumption, the computer upper computer 2 determines the current abnormal condition and abnormal degree of the intelligent electric meter 1 through a set calculation algorithm, and makes corresponding alarm operation according to different grades, so that the electricity consumption of each production area is safer.

The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.