CN113258593A - Three-phase imbalance online treatment platform and method - Google Patents
Three-phase imbalance online treatment platform and method Download PDFInfo
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- CN113258593A CN113258593A CN202110680383.1A CN202110680383A CN113258593A CN 113258593 A CN113258593 A CN 113258593A CN 202110680383 A CN202110680383 A CN 202110680383A CN 113258593 A CN113258593 A CN 113258593A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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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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- 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
- H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
- H04L9/0631—Substitution permutation network [SPN], i.e. cipher composed of a number of stages or rounds each involving linear and nonlinear transformations, e.g. AES algorithms
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Abstract
The embodiment of the invention discloses a three-phase imbalance online treatment platform and a three-phase imbalance online treatment method, wherein the three-phase imbalance online treatment platform comprises an electric energy quality treatment module, an encryption module and a control module, wherein the electric energy quality treatment module is used for continuously acquiring state data of an electric power system and generating a treatment report after performing treatment actions according to control instructions sent by an electric energy management cloud; the electric energy management cloud end is used for decrypting the encrypted state data or the encrypted management report to obtain the state data or the encrypted management report, visually displaying the state data or the management report, judging whether the electric power system is in a three-phase unbalanced state or not according to the state data, if yes, sending a control command to the electric energy quality management module, and the control command is used for controlling the electric energy quality management module to execute management actions, so that the technical problem that the three-phase load imbalance of the electric power system cannot be managed on line in the prior art is solved.
Description
Technical Field
The embodiment of the application relates to the field of electric power, in particular to a three-phase imbalance online treatment platform and a three-phase imbalance online treatment method.
Background
With the continuous development of economy, the living water quality of people is continuously improved, high-power single-phase electric equipment such as televisions, air conditioners and the like is rapidly popularized to common people, but due to the fact that the service time of single-phase electric loads is uncertain and discontinuous, and the non-synchronism is poor, the single-phase electric loads can damage the original three-phase load balance of an electric power system after being connected into the electric power system, and the situation that the three-phase load is unbalanced occurs. The three-phase load unbalance of the power system can increase the electric energy loss of a line, increase the electric energy loss of a distribution transformer, influence the safe operation of electric equipment, cause zero line overload and seriously influence the stability of the power system.
At present, the problem of unbalanced three-phase load of an electric power system is solved by adopting comprehensive intelligent electric energy quality treatment equipment generally, but the comprehensive intelligent electric energy quality treatment equipment is usually installed on the local ground, and is not reported when the three-phase load is treated, and a background cannot remotely control the comprehensive intelligent electric energy quality treatment equipment, so that the online treatment of the three-phase load of the electric power system cannot be realized.
Disclosure of Invention
The embodiment of the invention provides a three-phase imbalance online treatment platform and a three-phase imbalance online treatment method, which are used for solving the technical problem that the online treatment of three-phase imbalance of a power system cannot be realized in the prior art.
In a first aspect, an embodiment of the present invention provides an online three-phase imbalance treatment platform, including:
the electric energy quality control module is used for continuously acquiring state data of the power system and sending the state data to the encryption module; the management report is generated after the management action is executed according to the control command sent by the electric energy management cloud, and the management report is sent to the encryption module; the governing action is used for eliminating the three-phase unbalanced state of the power system, and the governing report comprises an elimination result of the three-phase unbalanced state of the power system;
the encryption module is used for encrypting the state data or the treatment report to generate encrypted state data or an encrypted treatment report, and sending the encrypted state data or the encrypted treatment report to the electric energy management cloud;
the electric energy management cloud end is used for decrypting the encrypted state data or the encrypted treatment report to obtain the state data or the treatment report, visually displaying the state data or the treatment report, and judging whether the electric power system is in a three-phase unbalanced state or not according to the state data, if so, sending the control instruction to the electric energy quality treatment module, and the control instruction is used for controlling the electric energy quality treatment module to execute the treatment action.
Preferably, the system further comprises a reactive compensation module, the reactive compensation module is used for receiving a reactive compensation instruction sent by the electric energy management cloud end and executing reactive compensation operation,
correspondingly, the electric energy management cloud is also used for judging whether the electric power system needs to perform reactive compensation or not according to the state data, and if so, sending a reactive compensation instruction to the reactive compensation module.
Preferably, the system further comprises a cloud storage module, and the cloud storage module is used for storing the state data or the treatment report.
Preferably, the electric energy management cloud is further configured to perform load flow calculation according to the state data, generate comprehensive state information of the electric power system according to a load flow calculation result, and visually display the comprehensive state information of the electric power system.
Preferably, the electric energy management cloud further comprises an early warning submodule, and the early warning submodule is used for carrying out early warning when the control instruction is sent to the electric energy quality management module.
In a second aspect, an embodiment of the present invention further provides an online three-phase imbalance treatment method, including the following steps:
receiving encrypted state data sent by an encryption module, decrypting the encrypted state data to obtain state data, and visually displaying the state data; the encrypted state data is obtained by encrypting the state data of the power system acquired by the power quality management module through the encryption module;
judging whether the power system is in a three-phase unbalanced state or not according to the state data;
if yes, sending a control instruction to a power quality management module, wherein the control instruction is used for controlling the power quality management module to execute a management action and then generate a management report, the management action is used for eliminating the three-phase unbalanced state of the power system, and the management report contains an elimination result of the three-phase unbalanced state of the power system;
and receiving an encrypted treatment report sent by the encryption module, decrypting the encrypted treatment report to obtain a treatment report, and visually displaying the treatment report, wherein the encrypted treatment report is obtained by encrypting the treatment report through the encryption module.
Preferably, the specific process of decrypting the encrypted state data is as follows:
generating identification information, an ECC public key and an ECC private key, and sending the identification information and the ECC public key to the encryption module so that the encryption module authenticates the identification information, if the authentication is passed, encrypting an AES key according to the ECC public key to obtain a first AES key, wherein the AES key is generated by the encryption module, and the encrypted state data is obtained by encrypting the state data by the AES key;
receiving the first AES key sent by the encryption module, and decrypting the first AES key according to the ECC private key to obtain the AES key;
and decrypting the encrypted state data according to the AES key.
Preferably, the specific process of authenticating the identification information by the encryption module is as follows:
the encryption module matches the identification information according to a preset authentication table, and if the matching is successful, the authentication is passed; otherwise, the authentication is not passed, and the authentication table contains the pre-recorded identification information.
Preferably, the method further comprises the following steps:
and storing the state data or the treatment report into a cloud storage module.
Preferably, the method further comprises the following steps:
and carrying out load flow calculation according to the state data, generating comprehensive state information of the power system according to the load flow calculation result, and visually displaying the comprehensive state information of the power system.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the invention provides a three-phase imbalance online treatment platform and a method, and the three-phase imbalance online treatment platform comprises an electric energy quality treatment module, an encryption module and a power quality control module, wherein the electric energy quality treatment module is used for continuously acquiring state data of a power system and sending the state data to the encryption module; the management report is generated after the management action is executed according to the control command sent by the electric energy management cloud, and the management report is sent to the encryption module; the governing action is used for eliminating the three-phase unbalanced state of the power system, and the governing report comprises an elimination result of the three-phase unbalanced state of the power system; the encryption module is used for encrypting the state data or the treatment report, generating encrypted state data or an encrypted treatment report and sending the encrypted state data or the encrypted treatment report to the electric energy management cloud; the electric energy management cloud end is used for decrypting the encrypted state data or the encrypted treatment report to obtain the state data or the treatment report, visually displaying the state data or the treatment report, judging whether the electric power system is in a three-phase unbalanced state or not according to the state data, and if yes, sending a control instruction to the electric energy quality treatment module, wherein the control instruction is used for controlling the electric energy quality treatment module to execute treatment actions. The embodiment of the invention uses the encryption module to encrypt the state data or the treatment report, thereby ensuring the safety of the data and preventing the data from being tampered. The state data or the treatment report are visually displayed through the electric energy management cloud, so that managers can intuitively know the state of the electric power system and the treatment condition of three-phase imbalance in real time, the safe operation of the electric power system is ensured, and the power management cloud can judge that the electric power system is in the three-phase imbalance state according to the state data and sends a control instruction to the electric energy quality treatment module, so that the electric energy quality treatment module is controlled to execute treatment action, the three-phase imbalance of the electric power system is eliminated, and the online treatment of the three-phase imbalance of the electric power system is realized.
Drawings
Fig. 1 is a schematic structural diagram of an online three-phase imbalance treatment platform provided by an embodiment of the present invention.
Fig. 2 is a flow chart of a method for online treatment of three-phase imbalance according to an embodiment of the present invention.
Detailed Description
The following description and the annexed drawings set forth in detail certain illustrative embodiments of the application so as to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments of the present application includes the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
Example one
As shown in fig. 1, fig. 1 is a schematic structural diagram of an online three-phase imbalance treatment platform provided in an embodiment of the present invention, and as shown in fig. 1, the online three-phase imbalance treatment platform includes:
the electric energy quality control module 103 is used for continuously acquiring state data of the power system and sending the state data to the encryption module 102; after the management action is executed according to the control command sent by the electric energy management cloud 101, a management report is generated, and the management report is sent to the encryption module 102; the governing action is used for eliminating the three-phase unbalanced state of the power system, and the governing report comprises an elimination result of the three-phase unbalanced state of the power system.
In one embodiment, the status data of the power system includes three-phase current data of the power system, and the power quality management module 103 includes a current transformer for continuously collecting the three-phase current data of the power system and transmitting the three-phase current data to the encryption module 102. Meanwhile, the power quality management module 103 is further configured to receive a control instruction sent by the power management cloud 101, and execute a management action for eliminating a three-phase imbalance state of the power system according to the control instruction. In one embodiment, the power quality management module 103 includes a control unit, a three-phase full-bridge circuit composed of an IGBT driving circuit and an IGBT, the control unit generates a pulse width modulation wave according to a control signal after receiving the control signal, and sends the pulse width modulation wave to the IGBT driving circuit, the IGBT driving circuit drives the IGBT of the three-phase full-bridge circuit to perform high-frequency on-off and conversion according to the control command after receiving the control command, and the unbalanced current is transferred from a phase with a large current to a phase with a small current, so that the power system reaches a three-phase balanced state, and the three-phase unbalanced state of the power system is eliminated. It can be understood that, in this embodiment, the specific structure of the power quality management module 103 may be set according to actual needs, and the specific structure of the power quality management module 103 is not limited in this embodiment.
After the power quality management module 103 executes the management action, a management report is generated, and the management report includes a result of eliminating the three-phase imbalance state of the power system. In one embodiment, whether the three-phase imbalance state of the power system is eliminated can be judged according to the three-phase current data of the power system after the treatment action is executed, and a treatment report is generated; or, whether the governing action is successfully executed is judged according to the switching state of each IGBT in the power quality governing module 103, so as to judge whether the three-phase imbalance state of the power system is eliminated, and a governing report is generated. In one embodiment, the governance report includes three-phase current data after the governance action is executed, and if the three-phase imbalance state of the power system is successfully eliminated after the governance action is executed, the governance report also includes the content of successfully eliminating the three-phase imbalance state; if the three-phase imbalance state of the power system cannot be eliminated after the abatement action is executed, the abatement report further includes a content of "the three-phase imbalance state cannot be eliminated", it can be understood that the specific content of the abatement report may be set according to actual needs, and the specific content of the abatement report is not limited in this embodiment.
The encryption module 102 is configured to encrypt the status data or the abatement report, generate encrypted status data or an encrypted abatement report, and send the encrypted status data or the encrypted abatement report to the electric energy management cloud 101.
In this embodiment, the encryption module 102 encrypts the status data or abatement report after receiving the status data or abatement report, thereby generating encrypted status data or encrypted abatement report. The data security can be guaranteed through encryption, the data is prevented from being tampered, and potential safety hazards are prevented. In one embodiment, encryption module 102 encrypts the status data or abatement report using AES encryption. In this embodiment, the connection mode between the encryption module 102 and the power quality control module 103 may be set according to actual needs, and for example, the connection mode between the encryption module 102 and the power quality control module 103 may be a wired connection or a wireless connection. In this embodiment, the encryption module 102 is wirelessly connected to the power management cloud 101.
The electric energy management cloud 101 is configured to decrypt the encrypted state data or the encrypted management report to obtain the state data or the management report, visually display the state data or the management report, and judge whether the power system is in a three-phase unbalanced state according to the state data, if so, send a control instruction to the electric energy quality management module 103, and the control instruction is used for controlling the electric energy quality management module 103 to execute a management action.
In this embodiment, after receiving the encrypted status data or the encrypted management report, the electric energy management cloud 101 decrypts the encrypted status data or the encrypted management report to obtain the status data or the management report, and visually displays the status data or the management report. Meanwhile, after the electric energy management cloud 101 obtains the state data, it is determined whether the power system is in a three-phase unbalanced state according to the state data. In one embodiment, the state data includes three-phase current data of the power system, the electric energy management cloud 101 determines an amplitude difference between each phase of the current data according to the three-phase current data, and if the amplitude difference exceeds a preset range, it indicates that the power system is in a three-phase unbalanced state; otherwise, the power system is in a three-phase balance state. After the power system is determined to be in a three-phase unbalanced state, the power management cloud 101 sends a control instruction to the power quality management module 103, so as to control the power quality management module 103 to execute a management action.
In one embodiment, the power quality management module 103 continuously collects three-phase current data of the power system, sends the three-phase current data to the encryption module 102, and the encryption module 102 encrypts the three-phase current data after receiving the three-phase current data to generate encrypted three-phase current data and sends the encrypted three-phase current data to the power management cloud 101; the electric energy management cloud 101 decrypts the encrypted three-phase current data after receiving the encrypted three-phase current data to obtain three-phase current data, the three-phase current data are visually displayed, meanwhile, whether the power system is in a three-phase unbalanced state or not is judged according to the three-phase current data, if so, then a control command is sent to the power quality management module 103, and after the power quality management module 103 receives the control command sent by the power management cloud 101, the control method comprises the steps of executing a treatment action for eliminating a three-phase imbalance state of the power system according to a control command, then generating a treatment report, sending the treatment report to an encryption module 102, encrypting the treatment report by the encryption module 102 to generate an encrypted treatment report, sending the encrypted treatment report to an electric energy management cloud terminal 101, decrypting the encrypted treatment report by the electric energy management cloud terminal 101 to obtain the treatment report, and visually displaying the treatment report.
On the basis of the above embodiment, the system further comprises a reactive compensation module, the reactive compensation module is configured to receive a reactive compensation instruction from the power management cloud 101, execute a reactive compensation operation,
correspondingly, the electric energy management cloud 101 is further configured to judge whether the electric power system needs to perform reactive compensation according to the state data, and if so, send a reactive compensation instruction to the reactive compensation module.
In the present embodiment, the reactive power compensation module is installed on the power system, and the reactive power compensation module may be any one of a synchronous phase modulator, a power capacitor, a shunt reactor, and a static compensator, and it is understood that, in the present embodiment, a specific type of the reactive power compensation module is not limited. In one embodiment, the state data further includes load current data, the electric energy management cloud 101 decrypts the load current data to obtain the load current data, then calculates and analyzes the reactive content of the load current through the DSP, determines whether reactive compensation needs to be performed on the power system, and if so, sends a reactive compensation instruction to the reactive compensation module, and the reactive compensation module executes a reactive compensation operation after receiving the reactive compensation instruction, so as to improve the power factor of the power system and reduce the loss of the power system.
On the basis of the embodiment, the system further comprises a cloud storage module, and the cloud storage module is used for storing the state data or the treatment report.
In this embodiment, after visually displaying the status data or the governance report, the power quality governance module 103 sends the status data or the governance report to the cloud storage module for storage, so that the staff can call the status data or the governance report at any time when needed subsequently. In one embodiment, the cloud storage module encrypts and stores the state data or the administration report, and when a worker needs to extract data from the cloud storage module, the worker needs to input a correct password to extract the data, so that the data security is further ensured.
On the basis of the above embodiment, the electric energy management cloud 101 is further configured to perform load flow calculation according to the state data, generate comprehensive state information of the electric power system according to a load flow calculation result, and visually display the comprehensive state information of the electric power system.
In one embodiment, the status data also includes power, junction point voltage, voltage at balance point, and phase angle for each power and load point in the power system. After the electric energy management cloud 101 decrypts to obtain the state data, load flow calculation is performed according to the state data to obtain the voltage amplitude and the phase angle of each bus node of the electric power system, the power distribution of each branch and the power loss of the network, comprehensive state information of the electric power system is generated according to the load flow calculation result, and the comprehensive state information of the electric power system is visually displayed, so that managers can know the comprehensive condition of the electric power system.
On the basis of the above embodiment, the electric energy management cloud 101 further includes an early warning sub-module, and the early warning sub-module is configured to perform early warning when sending the control instruction to the electric energy quality management module 103.
In this embodiment, when the power management cloud 101 sends a control instruction to the power quality management module 103, the early warning sub-module performs early warning to remind a manager of paying attention to the situation that three phases of the power system are unbalanced at this time, so that the manager can pay attention to a subsequent management report and provide corresponding technical support, thereby ensuring stable operation of the power system. In this embodiment, the specific type of the early warning sub-module may be set according to actual needs, for example, in one embodiment, the early warning sub-module may be an audible and visual warning sub-module, and it can be understood that the specific type of the early warning sub-module is not limited in this embodiment.
On the basis of the above embodiment, the power quality management module 103 further includes a decryption submodule configured to decrypt the encrypted state data, and the specific process is as follows:
the AES key is generated by the encryption module, and the encrypted state data is obtained by encrypting the state data by the AES key; receiving a first AES key sent by an encryption module, and decrypting the first AES key according to an ECC private key to obtain an AES key; the encrypted state data is decrypted according to the AES key.
On the basis of the above embodiment, the encryption module further includes an authentication sub-module, and the authentication sub-module is configured to authenticate the identification information, and the specific process is as follows:
the authentication device is used for matching the identification information according to a preset authentication table, and if the matching is successful, the authentication is passed; otherwise, the authentication is not passed, and the authentication table contains the pre-recorded identification information.
In the embodiment of the invention, the encryption module is used for encrypting the state data or the administration report, so that the safety of the data is ensured, and the data is prevented from being tampered. The state data or the treatment report are visually displayed through the electric energy management cloud, so that managers can intuitively know the state of the electric power system and the treatment condition of three-phase imbalance in real time, the safe operation of the electric power system is ensured, and the power management cloud can judge that the electric power system is in the three-phase imbalance state according to the state data and sends a control instruction to the electric energy quality treatment module, so that the electric energy quality treatment module is controlled to execute treatment action, the three-phase imbalance of the electric power system is eliminated, and the online treatment of the three-phase imbalance of the electric power system is realized.
Example two
As shown in fig. 2, fig. 2 is a flowchart of an online three-phase imbalance treatment method according to an embodiment of the present invention, and in fig. 2, the method includes the following steps:
In this embodiment, the electric energy quality governance module continuously collects the state data of the electric power system, and then the state data is encrypted by the encryption module to generate encrypted state data, and the encrypted state data is sent to the electric energy management cloud, and the electric energy management cloud decrypts the state data after receiving the encrypted state data to visually display the state data.
In one embodiment, the decryption of the encrypted status data is specifically completed by steps 2011 to 20113, which is specifically as follows:
and 2011, generating identification information, an ECC public key and an ECC private key, and sending the identification information and the ECC public key to an encryption module so that the encryption module authenticates the identification information, if the identification passes the authentication, encrypting the AES key according to the ECC public key to obtain a first AES key, wherein the AES key is generated by the encryption module, and the encrypted state data is obtained by encrypting the state data by the AES key.
In this embodiment, the encryption module first generates an AES key by an AES encryption algorithm, and encrypts the state data using the AES key to generate encrypted state data. After the electric energy management cloud receives the encrypted state data, the electric energy management cloud generates identification information of the electric energy management cloud, the identification information is the only identification of the electric energy management cloud, and electric energy management can be distinguished according to the identification information. Meanwhile, the electric energy management cloud terminal generates an ECC public key and an ECC private key according to an ECC public key algorithm, the identification information and the ECC public key are sent to the encryption module, then the encryption module authenticates the identification information, and judges whether the electric energy management cloud terminal is a trusted electric energy management cloud terminal or not, so that data are prevented from being stolen. And if the encryption module passes the authentication, encrypting the AES key according to the ECC public key to obtain a first AES key.
It should be further explained that the specific process of the encryption module authenticating the identification information is as follows:
the encryption module matches the identification information according to a preset authentication table, and if the matching is successful, the authentication is passed; otherwise, the authentication is not passed, and the authentication table contains the pre-recorded identification information.
In this embodiment, an authentication table is pre-constructed, and identification information of a trusted electric energy management cloud is pre-recorded in the authentication table. The electric energy management cloud end is a trusted electric energy management cloud end, the authentication is passed, and otherwise, the authentication is not passed. In this embodiment, the electric energy management cloud is authenticated through the pre-established authentication meter, so that only the trusted electric energy management cloud can acquire the first AES key from the encryption module, and the security of data is further improved.
Step 2012, receiving the first AES key sent by the encryption module, and decrypting the first AES key according to the ECC private key to obtain the AES key.
After receiving the first AES key sent by the encryption module, since the ECC is an asymmetric encryption algorithm, the first AES key may be decrypted by using an ECC private key to obtain the AES key.
And 2013, decrypting the encrypted state data according to the AES secret key.
After the AES key is obtained, the encrypted state data may be decrypted according to the AES key, thereby obtaining the state data.
And step 202, judging whether the power system is in a three-phase unbalanced state or not according to the state data.
After the state data are obtained through decryption, the electric energy management cloud end judges whether the electric power system is in a three-phase unbalanced state or not according to the state data so as to judge whether a control instruction needs to be sent to the electric energy quality control module subsequently or not.
And 203, if so, sending a control instruction to the power quality control module, wherein the control instruction is used for controlling the power quality control module to execute a control action and then generating a control report, the control action is used for eliminating the three-phase unbalanced state of the power system, and the control report contains an elimination result of the three-phase unbalanced state of the power system.
In this embodiment, if the power management cloud determines that the power system is in the unbalanced three-phase state, a control instruction is sent to the power quality management module, the power quality management module executes an instruction action for eliminating the unbalanced three-phase state of the power system after receiving the control instruction, and after the management action is executed, the power quality management module generates a management report, where the management report includes an elimination result of the unbalanced three-phase state of the power system. If the electric energy management cloud determines that the power system is not in a three-phase unbalanced state, the process returns to step 201.
And 204, receiving the encrypted treatment report sent by the encryption module, decrypting the encrypted treatment report to obtain a treatment report, visually displaying the treatment report, and encrypting the treatment report by the encryption module to obtain the encrypted treatment report.
In this embodiment, after the encryption module encrypts the administration report, the encryption module generates an encrypted administration report, and sends the encrypted administration report to the electric energy management cloud, and after the electric energy management cloud receives the encrypted administration report, the electric energy management cloud decrypts the encrypted administration report, and the process of decrypting the encrypted administration report may refer to step 2011-step 20113, which is not described in this embodiment again. After the treatment report is obtained through decryption, the treatment report is visually displayed, so that a manager can visually observe whether the three-phase imbalance state of the power system is eliminated.
On the basis of the above embodiment, the method further comprises the following steps:
and storing the state data or the treatment report into a cloud storage module.
The state data or the administration report are stored in the cloud storage module, data loss is prevented, and the state data or the administration report can be called at any time when the worker subsequently needs the data.
On the basis of the above embodiment, the method further comprises the following steps:
and carrying out load flow calculation according to the state data, generating comprehensive state information of the power system according to the load flow calculation result, and visually displaying the comprehensive state information of the power system.
In one embodiment, the status data also includes power, junction point voltage, voltage at balance point, and phase angle for each power and load point in the power system. After the electric energy management cloud end decrypts to obtain the state data, load flow calculation is carried out according to the state data to obtain the voltage amplitude and the phase angle of each bus node of the electric power system, the power distribution of each branch and the power loss of the network, comprehensive state information of the electric power system is generated according to the load flow calculation result, and the comprehensive state information of the electric power system is visually displayed, so that managers can know the comprehensive condition of the electric power system.
On the basis of the above embodiment, the method further comprises the following steps:
and judging whether the power system needs to perform reactive compensation according to the state data, if so, sending a reactive compensation instruction to the reactive compensation module, so that the reactive compensation module executes reactive compensation operation after receiving the reactive compensation instruction sent by the electric energy management cloud.
On the basis of the above embodiment, the method further comprises the following steps:
and early warning is carried out when a control instruction is sent to the power quality control module.
In the embodiment of the invention, the encryption module is used for encrypting the state data or the administration report, so that the safety of the data is ensured, and the data is prevented from being tampered. The state data or the treatment report are visually displayed through the electric energy management cloud, so that managers can intuitively know the state of the electric power system and the treatment condition of three-phase imbalance in real time, the safe operation of the electric power system is ensured, and the power management cloud can judge that the electric power system is in the three-phase imbalance state according to the state data and sends a control instruction to the electric energy quality treatment module, so that the electric energy quality treatment module is controlled to execute treatment action, the three-phase imbalance of the electric power system is eliminated, and the online treatment of the three-phase imbalance of the electric power system is realized.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides an online treatment platform of unbalanced three phase which characterized in that includes:
the electric energy quality control module is used for continuously acquiring state data of the power system and sending the state data to the encryption module; the management report is generated after the management action is executed according to the control command sent by the electric energy management cloud, and the management report is sent to the encryption module; the governing action is used for eliminating the three-phase unbalanced state of the power system, and the governing report comprises an elimination result of the three-phase unbalanced state of the power system;
the encryption module is used for encrypting the state data or the treatment report to generate encrypted state data or an encrypted treatment report, and sending the encrypted state data or the encrypted treatment report to the electric energy management cloud;
the electric energy management cloud end is used for decrypting the encrypted state data or the encrypted treatment report to obtain the state data or the treatment report, visually displaying the state data or the treatment report, and judging whether the electric power system is in a three-phase unbalanced state or not according to the state data, if so, sending the control instruction to the electric energy quality treatment module, and the control instruction is used for controlling the electric energy quality treatment module to execute the treatment action.
2. The three-phase imbalance online governance platform of claim 1, further comprising a reactive compensation module, wherein the reactive compensation module is configured to receive a reactive compensation instruction sent by the electric energy management cloud and execute a reactive compensation operation;
correspondingly, the electric energy management cloud is also used for judging whether the electric power system needs to perform reactive compensation or not according to the state data, and if so, sending a reactive compensation instruction to the reactive compensation module.
3. The online three-phase imbalance governance platform of claim 2, further comprising a cloud storage module for storing the status data or the governance report.
4. The three-phase imbalance on-line treatment platform according to claim 3, wherein the electric energy management cloud is further configured to perform load flow calculation according to the state data, generate comprehensive state information of the electric power system according to a load flow calculation result, and visually display the comprehensive state information of the electric power system.
5. The three-phase imbalance on-line treatment platform of claim 4, wherein the electric energy management cloud further comprises an early warning submodule, and the early warning submodule is used for carrying out early warning when the control instruction is sent to the electric energy quality treatment module.
6. The three-phase unbalance on-line treatment method is characterized by comprising the following steps of:
receiving encrypted state data sent by an encryption module, decrypting the encrypted state data to obtain state data, and visually displaying the state data; the encrypted state data is obtained by encrypting the state data of the power system acquired by the power quality management module through the encryption module;
judging whether the power system is in a three-phase unbalanced state or not according to the state data;
if yes, sending a control instruction to a power quality management module, wherein the control instruction is used for controlling the power quality management module to execute a management action and then generate a management report, the management action is used for eliminating the three-phase unbalanced state of the power system, and the management report contains an elimination result of the three-phase unbalanced state of the power system;
and receiving an encrypted treatment report sent by the encryption module, decrypting the encrypted treatment report to obtain a treatment report, and visually displaying the treatment report, wherein the encrypted treatment report is obtained by encrypting the treatment report through the encryption module.
7. The online three-phase imbalance management method according to claim 6, wherein the specific process of decrypting the encrypted state data is as follows:
generating identification information, an ECC public key and an ECC private key, and sending the identification information and the ECC public key to the encryption module so that the encryption module authenticates the identification information, if the authentication is passed, encrypting an AES key according to the ECC public key to obtain a first AES key, wherein the AES key is generated by the encryption module, and the encrypted state data is obtained by encrypting the state data by the AES key;
receiving the first AES key sent by the encryption module, and decrypting the first AES key according to the ECC private key to obtain the AES key;
and decrypting the encrypted state data according to the AES key.
8. The method according to claim 7, wherein the specific process of the encryption module for authenticating the identification information is as follows:
the encryption module matches the identification information according to a preset authentication table, and if the matching is successful, the authentication is passed; otherwise, the authentication is not passed, and the authentication table contains the pre-recorded identification information.
9. The three-phase imbalance on-line treatment method according to claim 6, characterized by further comprising the following steps:
and storing the state data or the treatment report into a cloud storage module.
10. The three-phase imbalance on-line treatment method according to claim 6, characterized by further comprising the following steps:
and carrying out load flow calculation according to the state data, generating comprehensive state information of the power system according to the load flow calculation result, and visually displaying the comprehensive state information of the power system.
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