CN111553752A - Block chain multilevel control load intelligent analysis module - Google Patents

Abstract

The invention discloses a block chain multistage control load intelligent analysis module which comprises a block chain monitoring platform, a national power grid platform, a transformer substation sub-meter, a cell sub-meter and an entry meter, wherein the national power grid platform is connected with the block chain monitoring platform, the block chain monitoring platform is respectively connected with the transformer substation sub-meter, the cell sub-meter and the entry meter, the transformer substation sub-meter is also connected with the cell sub-meter, the cell sub-meter is also connected with the entry meter, data are uploaded through mutual communication of three electricity meters and the data are operated through a block chain technology, and analysis and comparison are carried out. The block chain-based electric power transaction system adopts intelligent contracts, real-time payment and electric power payment to settle accounts in real time. The energy digital accurate management, the electric energy digital assets and the digital modeling of the power network are realized, and the accurate management is realized.

Description

Block chain multilevel control load intelligent analysis module

Technical Field

The invention relates to the field of block chains, in particular to a block chain multistage control load intelligent analysis module.

Background

At present, the management of resident electricity consumption is too laggard, and the traditional operation mode of firstly using electricity, then reading meter and then paying is always adopted for years. According to statistics, the number of people in a meter reading team of an electric power department is tens of thousands, the manual meter reading mode is low in working efficiency and high in labor intensity, problems of incomplete meter reading, estimated reading, missed reading, wrong calculation, long meter reading period and the like can also exist, and the prevention and the treatment of electricity stealing are not mentioned. In the society towards the modernization of informatization, networking and power system stepping, manual meter reading becomes a great obstacle restricting the modernization management of a power supply system. In terms of the integrity of the system, the power system basically realizes networked management from power generation, power distribution and transmission to regional transformation substations, and only the user terminal is not connected with the network, so that the system is incomplete, and the exertion of the potential of the system is directly or indirectly influenced. And great waste of manpower, material resources and time is caused to the power supply management department.

Disclosure of Invention

The invention aims to provide a block chain multistage control load intelligent analysis module to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a block chain multilevel control load intelligent analysis module, includes block chain monitoring platform, national grid platform, transformer substation branch table, cell branch table and entry table, national grid platform connects block chain monitoring platform, and block chain monitoring platform connects transformer substation branch table, cell branch table and entry table respectively, and the transformer substation divides the table to still connect the cell branch table, and the cell branch table still links into the entry table, and the intercommunication through three ammeter uploads data and moves analysis contrast through block chain technique.

As a further technical scheme of the invention: the block chain monitoring platform is connected with the substation branch meter, the cell branch meter and the household meter respectively and is an intelligent electric meter.

As a further technical scheme of the invention: the intelligent electric meter comprises a block electric energy metering module, an alarm module, an electricity utilization monitoring module, a communication module, a security authentication encryption module, a communication module, a two-way interaction module and a fee control module.

As a further technical scheme of the invention: the metering module is used for measuring electrical parameters, has high metering precision, and memorizes electric quantity and remotely transmits information.

As a further technical scheme of the invention: the electrical parameters include current, voltage, electrical quantity, active, reactive, zero line current, temperature and harmonics.

As a further technical scheme of the invention: the core of the metering module is an AD7755 chip.

As a further technical scheme of the invention: and the communication module is used for communicating the three meters through electromagnetic pulses.

As a further technical scheme of the invention: and the communication module carries out data comparison and uploading through 5G and electromagnetic carrier waves.

Compared with the prior art, the invention has the beneficial effects that: 1. improving the accuracy of load prediction: the power consumption of the electric meter is low, and generally, the power consumption of each meter is only about 0.6 w-0.7 w. The accuracy is high, in terms of the error range of the meter, the error of the 2.0-grade electronic electric energy meter measured in the 5% -400% calibration current range is +/-2%, and the current commonly used is that the accuracy grade is 1.0 grade, and the error is smaller. Overload, power frequency range are wide, and smart electric meter's overload multiple generally can reach 6~8 times, has the range of broad.

The large users can upload recent electricity utilization plans of the users to the power supply company through the block chain intelligent electricity meter set intelligent electricity meters through a block chain technology, and the users with the distributed power supplies can upload own electricity sending plans and electricity generation data of the distributed power supplies through the intelligent electricity meters. The power supply enterprise uses the capacity and time of the planned power consumption of the users and the sequence of the planned power consumption of each user as accurate information of load prediction, intelligently analyzes the power consumption behavior of the users, automatically intervenes in a load prediction system, can improve the accuracy of the load prediction, reduces the reserve capacity of a power grid, and improves the economic benefit of the power grid.

2. Providing a fault analysis basis:

data on the block chain cannot be tampered, the data is credible, transaction can be traced and traced, credible safety of electric power transaction is improved, and cost reduction and efficiency improvement are achieved. Power supply enterprises can monitor the power utilization condition of users in real time through the intelligent ammeter set of the block chain, realize online analysis, dynamic tracking and automatic control of abnormal states through edge calculation, and improve the reliability of power supply. When a fault occurs, abnormal electricity utilization records can be inquired through the intelligent electric meter, and reliable real-time data are provided for fault analysis.

3. Block chain and intelligent demand side management:

the intelligent monitoring and control are carried out on the state and the energy consumption of the electric equipment, so that the more detailed user load condition is mastered, the ordered power utilization scheme is automatically compiled and optimized through the block chain and edge computing technology, the automatic implementation, the process tracking, the automatic monitoring and the effect evaluation are carried out, and the intelligent management of a demand side is achieved. The block chain-based electric power transaction system adopts intelligent contracts, real-time payment and electric power payment to settle accounts in real time. The energy digital accurate management, the electric energy digital assets and the digital modeling of the power network are realized, and the accurate management is realized.

Drawings

Fig. 1 is a general design schematic of the present invention.

Fig. 2 is a functional diagram of the intelligent electric meter.

Fig. 3 is an internal block diagram of the single chip microcomputer.

Fig. 4 is a circuit connection diagram.

Fig. 5 is a load intelligent regulation diagram.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, example 1: the utility model provides a block chain multilevel control load intelligent analysis module, including block chain monitoring platform, national grid platform, the transformer substation divides the table, district table and entry table, main table is placed on low-voltage substation and power transmission and transformation device, divide the table to place in the district and the power transmission line of transformer substation branch expenditure, entry table is placed in the consumer electric meter room, national grid platform connects block chain monitoring platform, block chain monitoring platform connects transformer substation branch table, district table and entry table respectively, transformer substation divides the table still to connect the district table, the district table still connects the entry table, the intercommunication through three ammeter passes through the block chain technique with data upload and operates (like figure 1), the analysis contrast. The main table, the sub-table and the home table can also compare the data by themselves. The electric meter is divided into eight modules (shown in figure 2) including an electric energy metering module, an alarm module, an electricity utilization monitoring module, a communication module, a security authentication encryption module, a fee control module, a communication module and a bidirectional interaction module (carrier). The load balance of the power grid is effectively adjusted through data uploading of the block chain and marginalized calculation, peak clipping and valley filling are achieved, and the power utilization is more reasonable and effective.

Wherein:

the metering module has the functional characteristics of measurement of electrical parameters (current, voltage, electric quantity, active power, reactive power, zero line current, temperature, harmonic wave and the like), high metering precision, electric quantity memory, remote information transmission and the like. The user can directly inquire information such as electric charge, alarm, historical electricity utilization, power supply curve and the like through the liquid crystal display screen on the electric meter. The intelligent electric meter liquid crystal display displays information such as date, time and electric quantity in a circulating mode. The customer can utilize the information to know the electricity utilization condition of the customer at different time in time, and a scientific and reasonable electricity utilization plan is made according to the demand of the customer so as to reduce the actual electricity expense. And accessible block chain intelligence analysis ammeter data, help power supply company and power consumer to acquire the abnormal conditions very first time, conveniently salvage in time, reduce the power off time. The device also has the function of sampling signals and generating power pulses.

The function and the working process of the anti-theft module are as follows: and classifying and processing various reported alarm information, and providing electricity larceny prevention analysis means such as a circuit shell sensor, a diagram, a short message, a mobile phone terminal and the like. The alarm information comprises illegal opening of a door of the metering meter, reduction of the indication degree of the electric energy meter, change of voltage, cut-off voltage, reverse phase sequence of voltage, short circuit or tap current, reverse connection of current, reversal of super power, reverse flow of super power, short circuit of a CT secondary side, change of parameters of the electric energy meter, stop running of the electric energy meter, flying running of the electric energy meter, reactive power shortage, overcompensation and the like. For each type of alarm, a corresponding follow-up handler may be invoked. The power distribution network monitoring system can be combined with electric quantity analysis, curve analysis and line loss analysis and is uploaded to a block chain through a wireless network to form a multi-stage networked power distribution network monitoring system with high and low voltage parameter complementation, and remote meter reading, distribution transformer monitoring, load control management, electricity larceny prevention analysis and electricity consumption demand side management of a power distribution network are realized. The monitoring center server stores the data into a historical (original) database, performs classified statistical analysis on the data, automatically performs summary calculation, and draws load curves, line loss rate curves and electric quantity curves of all monitoring load points, feeder lines and substations. According to the analysis of the actual line loss and the management line loss, the power stealing users of the power line, the faults of the metering device and the power receiving points with large errors of the metering device are determined, so that the aims of preventing power stealing and reducing line loss are fulfilled.

The voltage out-of-limit, overload and oil temperature recording is carried out, electricity utilization abnormal condition alarming, CT short circuit and PT open circuit alarming are carried out, the electricity meter box is opened to alarm, alarming information is immediately transmitted to the block chain, and character prompting and voice alarming are intelligently sent out.

And (3) alarming for abnormal power utilization conditions: CT short circuit and PT open circuit alarm, ammeter case alarm of opening the door to reach the block chain immediately with warning information, intelligence sends out the word suggestion and the pronunciation is reported an emergency and asked for help or increased vigilance.

And equipment operation monitoring comprises system event reporting statistics, system terminal communication fault statistics, system terminal part fault statistics, system meter reading data abnormity statistics, system alternating current sampling data abnormity statistics and the like.

The specific functions and working processes of the power utilization monitoring module are as follows: active and combined reactive electric energy are passed; the electric energy and the total electric energy in each time interval such as peak, flat, valley and the like are respectively accumulated and stored by active electric energy and reactive electric energy; due to the adoption of the full electronic design, the precision is much higher than that of the prior induction type and common electronic type electric energy meters, and the metering is more accurate. The split-phase electric energy is added after the absolute value is taken, and is not the common algebraic sum addition, so that the electric quantity loss caused by wrong connection of a current wire of the mutual inductor of the three-phase four-wire electric energy meter is avoided, data is uploaded to a network, and the state and the energy consumption of electric equipment are intelligently monitored and controlled, so that the more detailed user load condition is mastered, the automatic programming and the intelligent voltage regulation are realized through a block chain technology, the ordered electric scheme is optimized, the automatic implementation, the process tracking, the automatic monitoring, the effect evaluation and the voltage load regulation are realized, and the intelligent management of a demand side is realized. The capacity and time of the user planned power utilization and the sequence of the user planned power utilization are used as accurate information of load prediction, a load prediction system is automatically intervened, and power supply quality management is as follows: voltage extreme value time recording and analysis, effective power supply time analysis and voltage qualification rate statistics.

And (3) power supply reliability management: management of power failure time, statistics of power supply reliability, management of power failure equipment, management of planned power failure time and the like.

Reactive power analysis and management: and carrying out reactive real-time analysis, out-of-limit prompting and conditional manual and automatic switching on the capacitor bank.

Device information management: setting, adjusting and changing of distribution network information (basic information such as electric power bureau, power supply station, transformer substation and line), station area information (basic information of transformer and metering device) and terminal information.

Event recording: power failure record, trip record, remote control record, failure record, electricity purchase record, etc

The accuracy of load prediction can be improved, the reserve capacity of the power grid can be reduced, and the economic benefit of the power grid can be improved.

The functions and working processes of the communication module are as follows: through the electromagnetic pulse technology, three meters (a main meter, a branch meter and an entry meter) are communicated, programs of the branch meter and the entry meter are automatically downloaded and installed to the branch meters through the main meter, and finally the programs obtained by the branch meters are automatically butted with the communicated entry meter, and are intelligently downloaded and installed to form a complete block chain intelligent electric meter set.

The electric meter can be written with a large amount of sensitive data such as automatic settlement amount, current electricity price, user number and the like by internal storage or in a block chain intelligent remote communication mode, important operations such as zero clearing, programming and the like are carried out on the electric meter, the electric meter is broadcast to a peer-to-peer network after asymmetric encryption, and the electric meter is packed and linked up through a bookkeeping node. The public key of the intelligent electric energy meter and the internet bank shield installed in a remote place are subjected to double authentication in a remote communication mode, and the electric energy meter can be correspondingly operated after the double authentication is successful. When the electric energy meter is subjected to parameter setting, automatic settlement of electric charges, information rewriting and remote control command issuing operations through double encryption of the solid medium and the virtual medium, strict password verification or security authentication such as a sha256 module and the like is required to ensure safe and reliable data transmission. The encryption algorithm of the Sha256 module adopts a national encryption algorithm.

Authentication is based on a "challenge/response" protocol between the meter and the customer, and the microcontroller can prevent the system from functioning; if the client is authenticated, the system is allowed to operate normally. In the case of data applications such as satellite radio, the meter uses a 256-bit SHA-1 digest as the session key for the radio, which is based on a random value sent with the data. The authenticated client radio can correctly convert the random number to the session key to decrypt the transmission.

The function and the working process of the fee control module are as follows: a plurality of preselected nodes are designated as bookkeepers in a certain group through setting a alliance chain, generation of each block is determined by all the preselected nodes, and other access nodes can participate in transaction and verify the billing process through intelligent contracts. And accounting is carried out through a distributed general ledger of the private chain application block chain, and a company or an individual can solely share the writing authority of the block chain. The convenience and the stability of the power transaction of the micro-grid system are achieved. The block chain of the alliance can completely meet the use requirement, and the transaction is written into the block chain. The safety and the convenience of electricity utilization transaction are guaranteed, and the privacy of electricity utilization is also considered. Meanwhile, the method has the function of charging the step electricity price in the future, and when the electricity consumption of monthly customers exceeds a preset standard, the subsequent electricity price is automatically adjusted; the system has the advantages that remote automatic settlement is realized on the basis of a wireless network technology, the electricity consumption information and the working state of a user are monitored through a block chain technology acquisition system, electricity consumption between the meters is compared to obtain electricity consumption conditions of an electricity consumer, the electricity consumption conditions are uploaded to a block chain, the electricity charges are intelligently calculated through the block chain to calculate the accurate electricity consumption and electricity charges of the electricity consumer, the traditional electricity charge reading and checking and receiving mode is changed, and actions such as electricity stealing and the like on the electricity meter are also avoided; the intelligent electric power rate adjustment system has the advantages that the automatic electric power rate settlement and the intelligent electric power rate adjustment are realized, the electric power rate adjustment is realized, and service personnel can integrate intelligent auxiliary work through the block chain intelligent electric meter. According to the time or real-time command specified in each month, freezing and storing the related electric quantity data, wherein the frozen data comprise forward active power rates and total electric energy, reverse active power rates and total electric energy, forward reactive power rates and total electric energy, reverse reactive power rates and total electric energy and the like, and recording the current freezing time.

The function and the working process of the bidirectional interaction module are as follows: when the real-time electricity price is realized in the power grid, the real-time electricity price information is issued to the user through the block chain intelligent electric meter, and the user can reasonably utilize the electric energy. The intelligent electric meter or other modes inform the user of the power grid information (such as power failure information) which affects the power utilization of the user, so that the user can prepare in advance conveniently, and the intelligent recommendation changes the power utilization mode of the user. The power utilization information of the user is regularly issued to the user through the block chain at regular time, and the user can master the real-time power utilization condition of the user so as to achieve the purpose of economy and conservation.

The power utilization habits of the users are analyzed through the built-in artificial intelligence of the intelligent electric meter, the recent power utilization plans of the users are uploaded to the power grid, and accurate load prediction is made through intelligent analysis of the block chain technology, so that the reserve capacity of the power grid is reduced, and the economic benefit of the power grid is improved.

The users with the distributed power supply can upload own power transmission plans and power generation data of the distributed power supply through the intelligent ammeter, and if the electric energy quality of the power supply is found to be unqualified through the block chain intelligent technology, the users can be informed through the intelligent ammeter, and the users are required to be timely rectified and simultaneously intelligently provide solutions.

The functions and working processes of the communication module are as follows: data comparison and uploading are carried out through communication modes such as 5G and electromagnetic carrier waves, task decomposition is carried out on a communication interface, and information is converted into a block chain in a data instruction pushing mode. In the aspect of data storage and reading and writing by using the blockchain technology, data stored on the blockchain cannot be modified any more, each node has a high-autonomy characteristic, and the processing speed and throughput of a single node are enhanced by using a distributed framework.

Embodiment 2, on the basis of embodiment 1, the core of the metering module is an AD7755 chip, which is an application specific integrated circuit specially used for power testing and power measurement, and is one of the core chips of the current electronic watt-hour meter. The power metering part comprises an AD7755, a current divider, a divided current, a basic voltage source, a protection circuit diagram and an optical coupler output circuit.

The internal structure of the AD7755 is as shown in fig. 3, on which a frequency converter (D/F), a gain fixed amplifier, a High Pass Filter (HPF), a voltage monitor, and a 2.5V internal reference source, a 16-bit second-order analog-to-digital converter (ADC), a Low Pass Filter (LPF), a gain selectable amplifier (PGA), a digital multiplier, an accompanying correction circuit, and a voltage divider circuit are integrated to sample current and voltage signals, respectively; after the signals of the current channel and the voltage channel are amplified by the amplifier, the signals are converted into two paths of digital signals through an A/D converter in the AD7755, and then the two paths of digital signals are processed by circuits such as multiplication, low-pass filtering, digital frequency conversion and the like, the AD7755 outputs a pulse which is in direct proportion to the instantaneous power, and the pulse is sent to the MCU.

The AD7755 is a CF pin which can provide a pulse constant of 1600IMP/KWH (pulse number/kilowatt hour), the output pulse is isolated and output by an LED and a photoelectric coupler and then is sent to a terminal output pin of the MCU, and the MCU controls and measures the power pulse. The AD7755 produces an output frequency that is proportional to the average of the product of the two voltage signals. The AD7755 obtains the active power information by calculating the product of the two output voltages of the channel 1 and the channel 2 and then performing low-pass filtering on the product. This active power is further converted to frequency and output from F1 and F2 in a low level efficient manner. This frequency is cumulatively generated for a significant time for the active power signal, so this output frequency is proportional to the average active power, which is implicitly done in the digital-to-frequency conversion during the averaging process of the active power amplifier, and the output voltage values applied to the AD7755 are U1 and U2.

The pulse frequency F output by the F1 and the F2 has a certain number relation with the effective values U1 and U2 of the output voltage signal.

F=（8.06×U1×U2×G×F）/Uref

In the formula (I); f is the frequency (HZ) output by pins F1 and F2;

u1 is the effective value (V) of the differential input voltage;

u2 is the yield value (V) of the differential output voltage;

g is 1, 2, 8, 16 depending on the gain of the PGA, determined by the logic inputs of G0 and G1;

uref is the reference voltage (2.5V ± 0.8%) (V);

f1-4 is obtained by dividing the frequency of the main clock CLKIN by the dividing coefficients determined by S0 and S1.

The circuit connection diagram of the present invention is shown in fig. 4.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. The utility model provides a block chain multilevel control load intelligent analysis module, includes block chain monitoring platform, national grid platform, transformer substation branch table, cell division table and income household table, its characterized in that, block chain monitoring platform is connected to national grid platform, and block chain monitoring platform connects transformer substation branch table, cell division table and income household table respectively, and the transformer substation divides the table still to connect the cell division table, and the cell division table still links into the household table, uploads data and moves through block chain technique through the intercommunication of three ammeter, analysis contrast.

2. The intelligent analysis module for the block chain multilevel control load according to claim 1, wherein the block chain monitoring platform is respectively connected with a substation sub-meter, a cell sub-meter and an entrance meter which are all intelligent electric meters.

3. The intelligent analysis module for blockchain multilevel control loads according to claim 2, wherein the intelligent electric meter comprises a blockchain electric energy metering module, an alarm module, an electricity utilization monitoring module, a communication module, a security authentication encryption module, a communication module, a bidirectional interaction module and a fee control module.

4. The intelligent analysis module for block chain multilevel control load according to claim 3, wherein the metering module is used for measuring electrical parameters, high metering accuracy, electric quantity memory and information remote transmission.

5. The intelligent analysis module for blockchain multilevel control loads according to claim 4, wherein the electrical parameters include current, voltage, electrical quantity, active, reactive, neutral current, temperature and harmonic.

6. The intelligent analysis module for blockchain multilevel control loads according to claim 3, wherein the core of the metering module is an AD7755 chip.

7. The intelligent analysis module for block chain multi-level control load according to claim 3, wherein the communication module communicates three tables with each other through electromagnetic pulses.

8. The intelligent analysis module for block chain multilevel control load according to claim 3, wherein the communication module performs data comparison uploading via 5G, electromagnetic carrier.

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