CN117543839A - Power supply control system and control method based on intelligent ammeter - Google Patents
Power supply control system and control method based on intelligent ammeter Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
Abstract
The invention discloses a power supply control system and a control method based on intelligent electric meters, and relates to the technical field of power supply control. According to the invention, the substation power controller can perform automatic power distribution according to the time points of the planning result matching plan, so that the power distribution of the multipath loads is more scientific and reliable, the power supply stability in a factory is greatly improved, the power waste is avoided as much as possible, and the power supply quality of equipment is improved.
Description
Technical Field
The invention relates to the technical field of power supply control, in particular to a power supply control system and a control method based on an intelligent ammeter.
Background
The comprehensive power supply control of the factory area refers to centralized management and control of all power equipment and electric equipment in the factory area so as to ensure the safety, stability and high efficiency of power supply. However, in actual operation, the factory floor overall power control may have the following drawbacks:
1. unstable power supply: due to various reasons, such as power equipment faults, power grid voltage fluctuation and the like, factory power supply is unstable, and the production process and the normal operation of equipment are affected.
2. Waste of electric power: in the overall power supply control process of the factory, the phenomenon of power waste can exist. For example, part of the devices remain in an on state during non-operation, resulting in an increase in power consumption.
3. Management is not good: the overall power supply control requires a strict management system and a high quality manager. If the management is not good, the problems of equipment damage, increased electric safety risk and the like can be caused.
4. Aging the equipment: along with the increase of service life, the aging phenomenon of power equipment and electric equipment in a factory can occur, and the stability and reliability of a power supply control system are affected.
5. The degree of automation is not high: the automation degree of the partial factory comprehensive power supply control system is low, and the automatic control system still depends on manual operation. This may result in low control efficiency, slow reaction speed, and inability to cope with an emergency situation in time.
6. Potential safety hazard of power supply: in a factory comprehensive power supply control system, potential safety hazards may exist. Such as aging of the circuit, short circuit, electric leakage, etc., may cause accidents such as fire, electric shock, etc.
7. Load imbalance: the power consumption loads in different areas of the factory area can have unbalance phenomenon, so that the voltage fluctuation of the power grid can influence the normal operation of the equipment.
8. The power quality is poor: in a factory comprehensive power supply control system, power quality problems such as voltage fluctuation, harmonic pollution and the like may exist. This may cause problems such as damage to equipment, reduced production efficiency, etc.
Disclosure of Invention
In order to solve the technical problems, the invention provides a power supply control system and a control method based on a smart meter. The following technical scheme is adopted:
the power supply control system based on the intelligent electric meter comprises a factory intelligent substation, a substation power controller and a plurality of intelligent electric meters, wherein the power input end of the factory intelligent substation is connected to a mains supply side, a plurality of power output ends are used for supplying power to multiple loads through the intelligent electric meters respectively, the substation power controller is used for collecting historical power consumption data of the intelligent electric meters respectively, the historical power consumption data are power consumption data of multiple loads in the previous production period, the power consumption data of the multiple loads are combined with the input production planning power consumption data, a power supply optimization model is used for planning power distribution proportion of the multiple loads respectively, the power supply optimization model is used for planning power distribution proportion of the next production period of each load respectively through an interior point method, and the substation power controller is used for carrying out power distribution according to a time point of planning result matching.
By adopting the technical scheme, in order to make the power supply of the factory more stable, the power consumption data of multiple paths of loads in the last production period in the factory is collected, the production period generally refers to a complete production day, and the historical power consumption data is used as important data for power proportion planning of the next production period;
however, the work plan in the factory is changed, and the change of the production plan for each load requires the entry of data before the next production cycle;
the power distribution proportion of the multiple loads in the next production period is planned by combining historical power consumption data and recorded production planning power consumption data and adopting a power supply optimization model, so that more basic power consumption distribution data is obtained, the power consumption distribution data is iteratively updated by an interior point method, planning data is changed in real time and is more close to a real-time power consumption state, a transformer substation power controller performs automatic power distribution according to a planning time point of matching planning of a planning result, and the power distribution of the multiple loads is more scientific and reliable, so that the power supply stability in a factory is greatly improved, the power waste is avoided as much as possible, the power supply quality of equipment is improved, and the stable and orderly production in the factory is ensured.
Optionally, the transformer substation power controller includes well accuse computer, data entry module and memory, well accuse computer lays the power supply optimization model, and the data output of a plurality of smart electric meters is connected with the data input of well accuse computer communication respectively, and the power consumption data based on time node mark is transmitted to well accuse computer respectively, well accuse computer adopts the power supply optimization model to plan multichannel load power distribution proportion respectively, and well accuse computer is connected with the control of a plurality of power output of the intelligent transformer substation of factory respectively, adjusts the power proportion of a plurality of power output respectively based on the planning result of power distribution proportion.
By adopting the technical scheme, the data input module adopts the multi-path data acquisition device, the input of multi-path power supply data of a plurality of intelligent electric meters can be simultaneously dealt with, the central control computer refers to an industrial control computer with certain calculation power, a general control server in a factory can be generally adopted for replacement, the central control computer is provided with a power supply optimizing model, the power supply optimizing model is adopted for planning the power distribution proportion of the multi-path load respectively, and the input data and the planned data are stored in a memory for set time for investigation.
Optionally, the substation power controller further comprises a control instruction generating chip, the central control computer is in communication connection with the instruction generating chip, the instruction generating chip is respectively in communication connection with the control chip of the factory intelligent substation, and the instruction generating chip generates control instructions of the plurality of power output ends according to the power distribution proportion planning result and transmits the control instructions to the control chip of the factory intelligent substation.
By adopting the technical scheme, the control instruction generating chip can generate the control instruction matched with the intelligent substation control chip in the factory according to the power supply planning data of the power supply optimizing model of the central control computer, so that automatic power configuration control is realized.
Optionally, the substation power controller further comprises a display large screen, the central control computer is in communication connection with the display large screen, and the display large screen is controlled to display real-time electricity utilization data of each load and power distribution planning data of the next time period.
By adopting the technical scheme, the large display screen can adopt the central control large display screen for comprehensively controlling the factory, and under the control of the central control computer, the large display screen can display the real-time power utilization data of each load and the power distribution planning data of the next time period, so that workers can intuitively know the power utilization condition of equipment in the factory in time.
Optionally, the substation power controller further comprises an audible and visual alarm, the audible and visual alarm is in communication connection with a central control computer, and the central control computer controls the execution action of the audible and visual alarm.
Through adopting above-mentioned technical scheme, the effect of audible and visual alarm is when the abnormal power consumption appears, and the audible and visual alarm is carried out to well accuse computer control audible and visual alarm, reminds the staff to deal with in time.
The power supply control method based on the intelligent electric meter adopts a power supply control system based on the intelligent electric meter to comprehensively regulate and control power supply of a factory, and comprises the following steps:
step 1, in a production period taking a day as a unit, generating a plurality of intelligent electric meters every one hour to transmit power consumption data packets of one hour to a central control computer, analyzing the plurality of power consumption data packets in the production period by the central control computer at the node time of the production period to obtain a plurality of groups of power consumption data, respectively recording Ca1, ca2, … …, cat and Ca representing historical power consumption data, wherein t is a time sequence number and is an integer from 1 to 1;
step 2, numbering the multi-path loads respectively, and recording the numbers L1, L2, … …, lx and x as the path number of the loads, wherein staff inputs power consumption variation configuration data of the multi-path loads in the next production period through a data input module at the node time of the production period, and the power consumption variation configuration data are recorded as follows: L1C1, L2C2, … …, lxCx, wherein Cx represents the power consumption variation configuration data of the Lx-th load;
step 3, respectively inputting the power consumption data of the previous production period and the recorded power consumption fluctuation configuration data of the next production period into a power supply optimization model, respectively carrying out power consumption planning on multiple paths of loads of the next production period by adopting an interior point method by the power supply optimization model, and outputting multiple paths of load control data of the next production period, wherein the multiple paths of load control data are respectively recorded as L1Cp1, L2Cp2, … … and LxCpx;
and 4, respectively planning the power distribution proportion of the next production period of each load by the central control computer, respectively marking as LxCa1, lxCa2, … … and LxCat, transmitting planning result data to the control instruction generating chip, generating a power consumption configuration instruction of the multi-path load of the next production period by the control instruction generating chip, transmitting the power consumption configuration instruction to the control chip of the intelligent substation in the factory, and respectively controlling the power consumption proportion configuration of the multi-path load in the next production period by the control chip of the intelligent substation in the factory according to the power consumption configuration instruction of the multi-path load in the next production period.
By adopting the technical scheme, the power consumption data of the previous production period and the power consumption variation configuration data of the multi-path load of the next production period, which are input by a worker through the data input module at the node time of the production period, are combined, and the load of some paths is not required to be regulated in actual operation, so that the input quantity of the power consumption variation configuration data is not large, a power supply optimization model is adopted to plan the power distribution proportion of the multi-path load of the next production period, the power distribution data with more basis is obtained, and a substation power controller performs automatic power distribution according to the planning result, so that the power distribution of the multi-path load is more scientific and reliable, the power supply stability in a factory is greatly improved, the power waste is avoided as much as possible, the power supply quality of equipment is improved, and the stable and orderly production of the factory is ensured.
Optionally, in step 3, the power supply optimization model obtains the initial planning result by adopting the following formula:
wherein the method comprises the steps ofRepresenting an initial planning power distribution proportion, e representing a weight coefficient of historical power consumption data, and f representing a weight coefficient of power consumption fluctuation configuration data; />Representing the total power input by the mains supply side;
the following formula is adopted to iterate the distribution proportion of the initial planning power to obtain a final planning result:
wherein the method comprises the steps ofProportional constant of the total power fluctuation representing the multiple load, +.>Representing the power configuration safety redundancy constant.
By adopting the technical scheme, the power consumption distribution data is iteratively updated by the interior point method, so that the planning data is changed in real time and is closer to the real-time power consumption state.
Optionally, the method further comprises step 5, wherein the central control computer transmits the real-time electricity consumption data of the multiple loads and the power distribution planning data of the next time period to the display large screen, and the display large screen is used for visual display.
Optionally, when the central control computer judges that the real-time power consumption of any path of load is 1.2 times greater than the planned power consumption, the audible and visual alarm is controlled to start audible and visual alarm.
Optionally, the calculation method for planning the power consumption plans the proportion for the power distributionMultiplying the total power of a plurality of loads acquired by the intelligent substation on the factory floor at the time.
In summary, the present invention includes at least one of the following beneficial technical effects:
the invention can provide a power supply control system and a control method based on a smart meter, and combines historical power consumption data and recorded production planning power consumption data, adopts a power supply optimization model to plan the power distribution proportion of multiple loads in the next production period, obtains more basic power distribution data, and then carries out iterative updating on the power distribution data through an interior point method, so that the planning data changes in real time and is more close to a real-time power consumption state, a substation power controller carries out automatic power distribution according to a time point of planning result matching planning, so that the power distribution of the multiple loads is more scientific and reliable, thereby greatly improving the power supply stability in a factory, avoiding power waste as much as possible, improving the power supply quality of equipment, and guaranteeing the stable and orderly production in the factory.
Drawings
Fig. 1 is a schematic diagram of the electrical device connection principle of the smart meter-based power supply control system of the present invention;
fig. 2 is a schematic diagram of the connection principle of electrical devices of a substation power controller of a power supply control system based on a smart meter.
Reference numerals illustrate: 1. factory intelligent substation; 11. a power output terminal; 2. a substation power controller; 21. a central control computer; 22. a data entry module; 23. a memory; 24. an instruction generating chip; 25. displaying a large screen; 26. an audible and visual alarm; 3. a smart meter; 100. a mains supply side; 101. and (3) loading.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the invention discloses a power supply control system and a control method based on a smart meter.
Referring to fig. 1 and 2, a power supply control system based on smart meters includes a factory intelligent substation 1, a substation power controller 2 and a plurality of smart meters 3, wherein a power input end of the factory intelligent substation 1 is connected to a mains supply side 100, a plurality of power output ends 11 supply power to multiple loads 101 through the plurality of smart meters 3 respectively, the substation power controller 2 collects historical power consumption data of the multiple loads 101 in a previous production period respectively, the historical power consumption data are power consumption data of the multiple loads 101 in the previous production period respectively, and in combination with the input production planning power consumption data, a power supply optimization model is adopted to plan the power distribution proportion of the multiple loads 101 respectively, the power supply optimization model adopts an interior point method to plan the power distribution proportion of the next production period of each load 101 respectively, and the substation power controller 2 performs power distribution according to a planning result matching planned time point.
In order to make the power supply of the factory more stable, the power consumption data of the multipath load 101 of the last production cycle in the factory is collected, the production cycle generally refers to a complete production day, and the historical power consumption data is used as important data for power proportion planning of the next production cycle;
however, the work schedule in the factory is changed, and the change of the production schedule for each load 101 requires the entry of data before the next production cycle;
the power distribution proportion of the multiple loads 101 in the next production period is planned by combining historical power consumption data and recorded production planning power consumption data and adopting a power supply optimization model, so that more basic power distribution data is obtained, the power distribution data is iteratively updated by an interior point method, planning data is changed in real time and is more close to a real-time power consumption state, and the substation power controller 2 performs automatic power distribution according to a planning time point of which a planning result is matched with the planning result, so that the power distribution of the multiple loads 101 is more scientific and reliable, the power supply stability in a factory is greatly improved, the power waste is avoided as much as possible, the power supply quality of equipment is improved, and the stable and orderly production in the factory is ensured.
The substation power controller 2 comprises a central control computer 21, a data input module 22 and a memory 23, wherein the central control computer 21 is provided with a power supply optimization model, data output ends of a plurality of intelligent electric meters 3 are respectively in communication connection with data input ends of the central control computer 21, power consumption data based on time node marks are respectively transmitted to the central control computer 21, the central control computer 21 adopts the power supply optimization model to respectively plan the power distribution proportion of the multiple loads 101, the central control computer 21 is respectively in control connection with a plurality of power output ends 11 of the factory intelligent substation 1, and the power proportion of the power output ends 11 is respectively adjusted based on the planning result of the power distribution proportion.
The data input module 22 adopts a multi-path data collector, can simultaneously cope with the input of multi-path power supply data of a plurality of intelligent electric meters 3, the central control computer 21 refers to an industrial control computer with a certain calculation force, a general control server in a factory can be adopted to replace the industrial control computer, a power supply optimizing model is arranged in the central control computer 21, the power distribution proportion of the multi-path load 101 is respectively planned by adopting the power supply optimizing model, and the input data and the planned data are required to be stored in the memory 23 for checking at a set time.
The substation power controller 2 further comprises a control instruction generating chip 24, the central control computer 21 is in communication connection with the instruction generating chip 24, the instruction generating chip 24 is respectively in communication connection with the control chip of the factory intelligent substation 1, and the instruction generating chip 24 generates control instructions of the plurality of power output ends 11 according to the power distribution proportion planning result and transmits the control instructions to the control chip of the factory intelligent substation 1.
The control instruction generating chip 24 can generate a control instruction matched with the control chip of the factory intelligent substation 1 according to the power supply planning data of the power supply optimizing model of the central control computer 21, so that automatic power configuration control is realized.
The substation power controller 2 further comprises a display large screen 25, the central control computer 21 is in communication connection with the display large screen 25, and the display large screen 25 is controlled to display real-time electricity utilization data of each load 101 and power distribution planning data of the next time period.
The large display screen 25 can adopt a central control large screen for comprehensively controlling the factory, and under the control of the central control computer 21, the large display screen 25 can display real-time power utilization data of each load 101 and power distribution planning data of the next time period, so that workers can intuitively know the equipment power utilization condition of the factory in time.
The substation power controller 2 further comprises an audible and visual alarm 26, the audible and visual alarm 26 is in communication connection with the central control computer 21, and the central control computer 21 controls the execution action of the audible and visual alarm 26.
The function of the audible and visual alarm 26 is that when abnormal power consumption occurs, the central control computer 21 controls the audible and visual alarm 26 to carry out audible and visual alarm, so as to remind staff of timely disposing.
The power supply control method based on the intelligent electric meter adopts a power supply control system based on the intelligent electric meter to comprehensively regulate and control power supply of a factory, and comprises the following steps:
step 1, in a production period taking a day as a unit, generating a plurality of intelligent ammeter 3 every one hour to transmit a power consumption data packet of one hour to a central control computer 21, wherein the central control computer 21 analyzes the plurality of power consumption data packets in the production period at the node time of the production period to obtain a plurality of groups of power consumption data, which are respectively recorded as Ca1, ca2, … …, cat, ca represents historical power consumption data, and t is a time sequence number and is an integer from 1 to 24;
step 2, the multiple loads 101 are respectively numbered, and denoted as L1, L2, … …, lx, x represent the number of paths of the loads 101, and a worker inputs power consumption variation configuration data of the multiple loads 101 in the next production cycle through the data input module 22 at the node time of the production cycle, and the power consumption variation configuration data are respectively denoted as: L1C1, L2C2, … …, lxCx, wherein Cx represents the power consumption variation configuration data of the Lx th load 101;
step 3, respectively inputting the power consumption data of the previous production period and the recorded power consumption fluctuation configuration data of the next production period into a power supply optimization model, respectively carrying out power consumption planning on the multi-path load 101 of the next production period by adopting an interior point method by the power supply optimization model, and outputting control data of the multi-path load 101 of the next production period, wherein the control data are respectively recorded as L1Cp1, L2Cp2, … … and LxCpx;
and 4, the central control computer 21 respectively plans the power distribution proportion of the next production period of each load 101, respectively marks as LxCa1, lxCa2, … … and LxCat, transmits planning result data to the control instruction generating chip 24, and the control instruction generating chip 24 generates a power consumption configuration instruction of the multi-path load 101 of the next production period and transmits the power consumption configuration instruction to the control chip of the factory intelligent substation 1, and the control chip of the factory intelligent substation 1 respectively controls the power consumption proportion configuration of the multi-path load 101 of the next production period according to the power consumption configuration instruction of the multi-path load 101 of the next production period in the next production period.
The power consumption data of the previous production cycle and the power consumption variation configuration data of the multi-path load 101 of the next production cycle, which are input by a worker through the data input module 22 at the node time of the production cycle, are combined, and the load 101 of some paths is not required to be adjusted in actual operation, so that the input quantity of the power consumption variation configuration data is not large, a power supply optimization model is adopted to plan the power distribution proportion of the multi-path load 101 of the next production cycle, more power distribution data with basis is obtained, the substation power controller 2 performs automatic power distribution according to the planning result, so that the power distribution of the multi-path load 101 is more scientific and reliable, the power supply stability in a factory is greatly improved, the power waste is avoided as much as possible, the power supply quality of equipment is improved, and the stable and orderly production in the factory is ensured.
In step 3, the power supply optimization model obtains an initial planning result by adopting the following formula:
wherein the method comprises the steps ofRepresenting an initial planning power distribution proportion, e representing a weight coefficient of historical power consumption data, and f representing a weight coefficient of power consumption fluctuation configuration data; />Representing the total power input by the mains power supply side 100;
the following formula is adopted to iterate the distribution proportion of the initial planning power to obtain a final planning result:
wherein the method comprises the steps ofRepresents the total power fluctuation proportionality constant of the multiple load 101, < ->Representing the power configuration safety redundancy constant.
And carrying out iterative updating on the power consumption distribution data by using an interior point method, so that the planning data changes in real time and is closer to a real-time power consumption state.
And step 5, the central control computer 21 transmits the real-time electricity consumption data of the plurality of loads 101 and the power distribution planning data of the next time period to the display large screen 25, and the display large screen 25 performs visual display.
When the central control computer 21 judges that the real-time power consumption of any load 101 is 1.2 times greater than the planned power consumption, the audible and visual alarm 26 is controlled to start audible and visual alarm.
Calculation method for planning power consumption is to allocate planning proportion for powerMultiplying the total power of the plurality of loads 101 acquired by the factory floor intelligent substation 1 at that time.
The above embodiments are not intended to limit the scope of the present invention, and therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. Power supply control system based on smart electric meter, its characterized in that: the intelligent power distribution system comprises a factory intelligent substation (1), a substation power controller (2) and a plurality of intelligent electric meters (3), wherein the power input end of the factory intelligent substation (1) is connected to a mains supply side (100), a plurality of power output ends (11) supply power for a plurality of loads (101) through the intelligent electric meters (3) respectively, the substation power controller (2) collects historical power consumption data of the intelligent electric meters (3) respectively, the historical power consumption data are power consumption data of the plurality of loads (101) of the previous production period, the power consumption data of the production period are combined with the input production plan power consumption data, a power distribution optimization model is used for planning the power distribution proportion of the plurality of loads (101) respectively, the power distribution optimization model is used for planning the power distribution proportion of the next production period of each load (101) respectively through an interior point method, and the substation power controller (2) performs power distribution according to the planned time points.
2. The smart meter-based power control system of claim 1, wherein: the transformer substation power controller (2) comprises a central control computer (21), a data input module (22) and a memory (23), wherein the central control computer (21) is provided with a power supply optimization model, data output ends of a plurality of intelligent electric meters (3) are respectively in communication connection with data input ends of the central control computer (21), power consumption data based on time node marks are respectively transmitted to the central control computer (21), the central control computer (21) adopts the power supply optimization model to respectively plan power distribution proportion of a plurality of loads (101), the central control computer (21) is respectively in control connection with a plurality of power output ends (11) of the intelligent transformer substation (1) in a factory, and the power proportion of the plurality of power output ends (11) is respectively adjusted based on planning results of the power distribution proportion.
3. The smart meter-based power control system of claim 2, wherein: the substation power controller (2) further comprises a control instruction generation chip (24), the central control computer (21) is in communication connection with the instruction generation chip (24), the instruction generation chip (24) is respectively in communication connection with the control chip of the factory intelligent substation (1), and the instruction generation chip (24) generates control instructions of the plurality of power output ends (11) according to a power distribution proportion planning result and transmits the control instructions to the control chip of the factory intelligent substation (1).
4. The smart meter-based power control system of claim 3, wherein: the transformer substation power controller (2) further comprises a display large screen (25), the central control computer (21) is in communication connection with the display large screen (25), and the display large screen (25) is controlled to display real-time electricity utilization data of each load (101) and power distribution planning data of the next time period.
5. The smart meter-based power control system of claim 3, wherein: the transformer substation power controller (2) further comprises an audible and visual alarm (26), the audible and visual alarm (26) is in communication connection with the central control computer (21), and the central control computer (21) controls the execution action of the audible and visual alarm (26).
6. The power supply control method based on the intelligent ammeter is characterized in that: the intelligent ammeter-based power supply control system for comprehensively controlling power supply of a factory comprises the following steps:
step 1, in a production period taking a day as a unit, generating a plurality of intelligent ammeter (3) every one hour to generate a power consumption data packet for one hour and transmitting the power consumption data packet to a central control computer (21), analyzing the power consumption data packets in the production period by the central control computer (21) in the node time of the production period to obtain a plurality of groups of power consumption data, respectively recording Ca1, ca2, … …, cat and Ca representing historical power consumption data, wherein t is a time serial number;
step 2, numbering the multiple paths of loads (101) respectively, and recording as L1, L2, … …, lx, x representing the number of paths of the loads (101), and recording power consumption variation configuration data of the multiple paths of loads (101) in the next production period by staff at the node time of the production period through a data recording module (22), wherein the power consumption variation configuration data are recorded as follows: L1C1, L2C2, … …, lxCx, wherein Cx represents power consumption variation configuration data of the Lx-th load (101);
step 3, respectively inputting the power consumption data of the previous production period and the recorded power consumption fluctuation configuration data of the next production period into a power supply optimization model, respectively carrying out power consumption planning on multiple loads (101) of the next production period by adopting an interior point method by the power supply optimization model, and outputting control data of the multiple loads (101) of the next production period, wherein the control data are respectively recorded as L1Cp1, L2Cp2, … … and LxCpx;
and 4, respectively planning the power distribution proportion of the next production cycle of each load (101) by the central control computer (21), respectively marking as LxCa1, lxCa2, … … and LxCat, transmitting planning result data to the control instruction generating chip (24), generating a power consumption configuration instruction of the multi-path load (101) of the next production cycle by the control instruction generating chip (24), transmitting the power consumption configuration instruction to the control chip of the factory intelligent substation (1), and respectively controlling the power consumption proportion configuration of the multi-path load (101) of the next production cycle by the control chip of the factory intelligent substation (1) according to the power consumption configuration instruction of the multi-path load (101) of the next production cycle in the next production cycle.
7. The smart meter-based power supply control method of claim 6, wherein: in step 3, the power supply optimization model obtains an initial planning result by adopting the following formula:
;
wherein the method comprises the steps ofRepresenting an initial planning power distribution proportion, e representing a weight coefficient of historical power consumption data, and f representing a weight coefficient of power consumption fluctuation configuration data; />Representing the total power input by the mains supply side (100);
the following formula is adopted to iterate the distribution proportion of the initial planning power to obtain a final planning result:
;
wherein the method comprises the steps ofRepresents the total power fluctuation proportionality constant of the multiple load (101), +.>Representing the power configuration safety redundancy constant.
8. The smart meter-based power supply control method of claim 7, wherein:
and 5, the central control computer (21) transmits the real-time electricity consumption data of the loads (101) and the power distribution planning data of the next time period to the display large screen (25), and the display large screen (25) performs visual display.
9. The smart meter-based power supply control method of claim 7, wherein: when the central control computer (21) judges that the real-time power consumption of any load (101) is 1.2 times greater than the planned power consumption, the audible and visual alarm (26) is controlled to start audible and visual alarm.
10. The smart meter-based power supply control method of claim 9, wherein: calculation method for planning power consumption is to allocate planning proportion for powerMultiplying the total power of a plurality of loads (101) acquired by the factory intelligent substation (1) at the time.
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