CN116845980A - Household photovoltaic inverter group management and control method based on cloud arrangement APP - Google Patents
Household photovoltaic inverter group management and control method based on cloud arrangement APP Download PDFInfo
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- CN116845980A CN116845980A CN202310638692.1A CN202310638692A CN116845980A CN 116845980 A CN116845980 A CN 116845980A CN 202310638692 A CN202310638692 A CN 202310638692A CN 116845980 A CN116845980 A CN 116845980A
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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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
- H02J13/00002—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 monitoring
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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
- H02J13/00004—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 power network being locally controlled
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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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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Abstract
According to the household photovoltaic inverter group management and group control method based on the cloud orchestration APP, batch inverter feedback information is obtained in real time, and the inverter voltage is adjusted in batches according to the batch inverter feedback information and the target reverse power threshold value through strategy control instruction information issued after the batch inverter feedback information and the target reverse power threshold value are matched to corresponding inverter groups. According to the household photovoltaic inverter group management and control method based on the cloud arrangement APP, the inverters can be uniformly managed in a group network group control mode after different inverters are subjected to group matching, the requirement of large-capacity photovoltaic integrated power grid control is met, meanwhile, the daily workload of power grid workers is reduced, meanwhile, the load side voltage and the transformer substation side voltage of the current of photovoltaic grid-connected power generation in the power grid are in a peer-to-peer controllable state through a target reverse power threshold, the power control efficiency is improved, the running quality, the stability and the safety of the power grid are guaranteed, the difficulty of system management and operation and maintenance management is reduced, the simplicity of a system is improved, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of distributed energy management, in particular to a group control method for a household photovoltaic inverter based on cloud arrangement APP.
Background
The distributed new energy is an energy comprehensive utilization system which is built near a user load center and not in remote transmission, can independently run and can run in a grid-connected mode, the system integration optimization is carried out on various energy demands and resource allocation conditions of users, the users can carry out power transmission and electricity purchasing according to the demands of the users, the energy can be reasonably utilized in a 'ladder' mode, and the distributed new energy is a distributed energy supply mode for relatively concentrated energy supply.
According to the data issued by the national energy agency, the target gap that the installed capacity of the national power generation is 25.6 hundred million kilowatts and the installed scale reaches 80 hundred million kilowatts in 2060 is very large by the end of 12 months in 2022, and the distributed energy still has a large development space in China. The method is characterized in that the method comprises the following steps of (1) 2021, 9 months and 27 days, and the method comprises the step of proving, by Shaanxi, of proving, namely, by Miq, proving, shaanxi, namely, informing a working scheme of a roof distributed photovoltaic power generation test point of the whole county (city, district) of Shaanxi, wherein the step of completing 10 city, 26 county roof distributed photovoltaic power generation test points before the end of 2023 months.
Compared with the traditional centralized energy supply system, the distributed energy brings about the conceptual revolution of the power system, has the advantages of high efficiency, small environmental impact, energy supply reliability improvement, energy utilization efficiency improvement, energy conservation, emission reduction promotion, pollution control and the like, the development of the distributed new energy can pull on internal requirements, the new energy innovation and growth point is cultivated, the realization of industrial development and environmental protection win-win has important significance, and the distributed new energy is a reasonable choice for energy transformation.
With the promotion of national policies, the application of innovative business modes and other multiple factors, the domestic household distributed quantity is rapidly increased, a series of challenges are brought to the photovoltaic integration of 0.4KV distributed household to the power grid, firstly, the control of large-capacity photovoltaic integration to the power grid is difficult, the load and the feedback power of the large-capacity photovoltaic integration can be changed to a certain extent, the original power grid is difficult to meet the requirements, the operation mode of the power grid needs to be planned again according to the actual conditions, the daily workload of related personnel is increased to a certain extent, and the fund investment is increased; secondly, the photovoltaic power generation is more and more connected to the feeder terminal and the terminal of the power grid, the distribution network is not matched with a new energy installation, reverse power is inverted during a power generation peak period to cause overload, so that reverse tide exists in the power grid, the current of the photovoltaic grid-connected power generation is influenced by the feeder in the power grid, a voltage drop condition is generated, the voltage of a transformer substation side is reduced, the voltage of the load side and the voltage of the transformer substation side are in unequal states, and further the voltage of the load side is out of limit; thirdly, the power control is difficult, so that the running quality, stability and safety of the power grid are affected, and the direct experience of a user is affected; fourth, after multiplied photovoltaics are integrated, the difficulty of system management and operation and maintenance management is increased, and the complexity of the system is increased.
Therefore, in order to overcome the defects of the prior art, it is necessary to provide a group control method for group management of household photovoltaic inverters based on cloud arrangement APP.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a cloud arrangement APP-based household photovoltaic inverter group management and control method.
The above object of the present invention is achieved by the following means.
The household photovoltaic inverter group management and group control method based on the cloud orchestration APP is provided, the feedback information of the batch inverters is obtained in real time, and the voltage of the inverters is adjusted in batches according to the feedback information of the batch inverters and the target reverse power threshold value through strategy control instruction information issued after the feedback information of the batch inverters and the target reverse power threshold value are matched to corresponding inverter groups.
Specifically, the novel energy control interface module, the object pipe platform module, the fusion terminal module and the inverter module are arranged, the novel energy control interface module is connected with the object pipe platform module, the object pipe platform module is connected with the fusion terminal module, and the fusion terminal module is connected with the inverter module;
the system comprises a new energy control interface module, a physical management platform module, a control platform module and a control platform module, wherein the new energy control interface module is internally provided with counter area inverter reverse power information, real-time batch counter area terminal information and batch inverter real-time data information are obtained through the physical management platform module, an equipment ledger with a counter area group form is formed according to the real-time batch counter area terminal information and the batch inverter real-time data information, and strategy control instruction information is issued by taking a specific counter area in the equipment ledger as a command conveying port according to the counter area inverter reverse power information, the batch inverter real-time data information and the obtained real-time batch counter area terminal information;
the object management platform module is used for respectively receiving the strategy control instruction information, receiving the batch inverter real-time data information and the real-time batch area terminal information uploaded by the fusion terminal module, storing the batch inverter real-time data information and the real-time batch area terminal information, sending the received batch inverter real-time data information and the received batch area terminal information to the new energy control interface module, and sending the received strategy control instruction information to the fusion terminal module;
the fusion terminal module is used for monitoring the inverter module in real time, collecting real-time batch area terminal information and batch inverter information at the same time, carrying out protocol standardization processing on the batch inverter information to form batch inverter real-time data information, sending the batch inverter real-time data information and the real-time batch area terminal information to the object pipe platform module, and carrying out strategy decomposition on strategy control instruction information to form a control command and sending the control command to the inverter module after comparing reverse power of a target area in the batch inverter real-time data information; the inverter module performs real-time batch adjustment according to the control command.
Specifically, the new energy control interface module is provided with an equipment ledger input unit, a data display unit and a strategy control unit; the equipment ledger input unit is respectively connected with the data display unit and the object management platform module, the data display unit is connected with the strategy control unit, and the strategy control unit is connected with the object management platform module;
the equipment ledger input unit receives real-time batch platform area terminal information and batch inverter real-time data information, automatically divides the equipment ledgers with corresponding inverter groups according to the platform area as a division standard, and sends the collected equipment ledgers to the data display unit;
the data display unit is internally provided with power information of the district inverters, and equipment ledger information, real-time batch district terminal information and real-time data information of the district inverters are obtained through the equipment ledger input unit to form display information;
and the strategy control unit sends strategy control instruction information according to the inverter group according to the AGC strategy requirement according to the display information.
The object management platform module is provided with an inverter data storage unit and a strategy sending unit, wherein the inverter data storage unit is respectively connected with the strategy sending unit, the equipment ledger input unit and the fusion terminal module, and the strategy sending unit is respectively connected with the strategy control unit and the fusion terminal module;
the inverter data storage unit is used for receiving and storing the real-time data information of the batch inverter and the real-time batch area terminal information sent by the fusion terminal module, and sending the real-time data information of the batch inverter and the real-time batch area terminal information to the equipment account entry unit;
the policy sending unit is used for receiving the policy control instruction information sent by the policy control unit and sending the policy control instruction information to the fusion terminal module.
Specifically, the fusion terminal module is provided with a strategy analysis unit, an inverter monitoring unit and an inverter control unit, wherein the strategy analysis unit is respectively connected with the inverter monitoring unit, the inverter control unit and the strategy sending unit, and the inverter monitoring unit is respectively connected with the inverter module and the inverter data storage unit;
the inverter monitoring unit monitors the inverter module, collects real-time batch area terminal information and batch inverter information of the inverter module, performs protocol standardization processing on the batch inverter information to form batch inverter real-time data information, and respectively sends the batch inverter real-time data information and the real-time batch area terminal information to the inverter data storage unit and sends the batch inverter real-time data information to the strategy analysis unit;
the strategy analysis unit is used for respectively receiving the strategy control instruction information sent by the strategy sending unit and the real-time data information of the batch of inverters at the same time, forming a control command after strategy decomposition by comparing the real-time reverse power in the real-time data information of the batch of inverters with the reverse power of the target area in the strategy control instruction information, and sending the control command to the inverter control unit;
wherein the inverter control unit sends a control command to the inverter module.
Specifically, the above-mentioned integration terminal module is further provided with an integration storage unit, and the integration storage unit is connected with the inverter monitoring unit, and the integration storage unit is used for storing real-time batch platform area terminal information, batch inverter information and batch inverter real-time data information of the inverter module.
The strategy control instruction information comprises at least one of transformer capacity information of a transformer area, acquisition control interval period, reverse power upper limit value threshold value and reverse power lower limit value threshold value.
Specifically, the policy decomposition of the fusion terminal module is specifically performed by the fusion terminal module; step 1, respectively determining the transformer capacity, the acquisition control interval period, the reverse power upper limit value threshold value and the reverse power lower limit value threshold value of a target station area;
step 2, judging a reverse power threshold value of the current station area, and performing peak regulation control when the reverse power of the current station area exceeds a reverse power upper limit value threshold value of the current station area; and when the reverse power of the station area exceeds the reverse power lower limit value threshold value of the station area, carrying out peak shaving recovery.
Preferably, the new energy control interface module is connected with the object pipe platform module through a network, the object pipe platform module is connected with the fusion terminal module through a network, and the fusion terminal module is connected with the inverter module through a network.
Preferably, the new energy control interface module is electrically connected with the object pipe platform module, the object pipe platform module is electrically connected with the fusion terminal module, and the fusion terminal module is electrically connected with the inverter module.
According to the cloud orchestration APP-based household photovoltaic inverter group management and group control method, the feedback information of the batch inverters is obtained in real time, and the voltage of the inverters is adjusted in batches according to the feedback information of the batch inverters and the target reverse power threshold value through strategy control instruction information issued after the feedback information of the batch inverters and the target reverse power threshold value are matched with the corresponding inverter groups. According to the household photovoltaic inverter group management and control method based on the cloud arrangement APP, the inverters can be uniformly managed in a group network group control mode after different inverters are subjected to group matching, the requirement of large-capacity photovoltaic integrated power grid control is met, meanwhile, the daily workload of power grid workers is reduced, meanwhile, the load side voltage and the transformer substation side voltage of the current of photovoltaic grid-connected power generation in the power grid are in a peer-to-peer controllable state through a target reverse power threshold, the power control efficiency is improved, the running quality, the stability and the safety of the power grid are guaranteed, the difficulty of system management and operation and maintenance management is reduced, the simplicity of a system is improved, and the efficiency is improved.
Drawings
The invention is further illustrated by the accompanying drawings, which are not to be construed as limiting the invention in any way.
Fig. 1 is a schematic diagram of an electrical connection structure of an embodiment 2 of a group control method for a household photovoltaic inverter based on cloud orchestration APP.
Fig. 2 is a schematic diagram of an electrical connection structure of a new energy control interface module in embodiment 2 of a group control method of a photovoltaic inverter for a user based on cloud orchestration APP.
Fig. 3 is a schematic diagram of an electrical connection structure of an object management platform module in embodiment 2 of a group management and group control method of a household photovoltaic inverter based on cloud orchestration APP.
Fig. 4 is a schematic diagram of a fusion terminal module structure of an embodiment 2 of a group control method of a household photovoltaic inverter based on cloud orchestration APP.
Fig. 5 is a schematic structural diagram of a fusion terminal module of embodiment 3 of a group control method of a household photovoltaic inverter based on cloud orchestration APP.
In fig. 1 to 5, there are:
the system comprises a new energy control interface module 100, an equipment ledger input unit 101, a data display unit 102 and a strategy control unit 103;
the system comprises an object pipe platform module 200, an inverter data storage unit 201 and a strategy sending unit 202;
the system comprises a fusion terminal module 300, a strategy analysis unit 301, an inverter monitoring unit 302, an inverter control unit 303, a fusion storage unit 304 and a fusion external interface unit 305;
an inverter module 400.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1.
A group control method for household photovoltaic inverters based on cloud arrangement APP comprises the steps of acquiring feedback information of batch inverters in real time, and sending strategy control instruction information to adjust inverter voltage in batches after the feedback information of the batch inverters and a target reverse power threshold are matched to corresponding inverter groups.
According to the household photovoltaic inverter group management and control method based on the cloud orchestration APP, batch inverter feedback information is obtained in real time, meanwhile, different inverters are subjected to grouping matching according to the batch inverter feedback information, different inverters are distributed to corresponding transformer area groups, meanwhile, according to the power threshold value of the batch inverter feedback information obtained in real time in the corresponding transformer area groups, the target reverse power threshold value is compared, unified strategy control instruction information is sent to adjust inverter voltages of different transformer areas in batches, the unified management of the inverters is achieved in a group network group control mode, the requirement of control after large-capacity photovoltaic is integrated into a power grid is met, meanwhile, daily workload of power grid workers is reduced, meanwhile, load side voltage and transformer substation side voltage of current of photovoltaic grid-connected power generation are in a peer-to-peer controllable state through the target reverse power threshold value, power control efficiency is improved, power grid operation quality, stability and safety are guaranteed, difficulty in system management and operation and maintenance management is reduced, systematic simplicity is improved, and efficiency is improved.
Example 2.
The group control method for the household photovoltaic inverter based on the cloud orchestration APP is the same as that of the embodiment 1 in other structures, and is different in that, as shown in fig. 1, a new energy control interface module 100, an object management platform module 200, a fusion terminal module 300 and an inverter module 400 are specifically provided, the new energy control interface module 100 is connected with the object management platform module 200, the object management platform module 200 is connected with the fusion terminal module 300, and the fusion terminal module 300 is connected with the inverter module 400.
In actual selection, the new energy control interface module 100 may be selected to be connected to the network 200 of the object management platform module, the object management platform module 200 is connected to the network of the fusion terminal module 300, and the fusion terminal module 300 is connected to the network of the inverter module 400.
In actual selection, the new energy control interface module 100 may be electrically connected to the object pipe platform module 200, the object pipe platform module 200 is electrically connected to the fusion terminal module 300, and the fusion terminal module 300 is electrically connected to the inverter module 400.
In this embodiment, the object pipe platform module 100 is electrically connected to the object pipe platform module 200, the object pipe platform module 200 is electrically connected to the fusion terminal module 300, and the fusion terminal module 300 is electrically connected to the inverter module 400.
As shown in fig. 2, the new energy control interface module 100 is internally provided with the reverse power information of the platform area inverter, and obtains real-time batch platform area terminal information and real-time data information of the batch inverter through the object management platform module 200, forms an equipment ledger with a platform area form according to the real-time batch platform area terminal information and the real-time data information of the batch inverter, and issues policy control instruction information by taking a specific platform area in the equipment ledger as a command conveying port according to the reverse power information of the platform area inverter, the real-time data information of the batch inverter and the obtained real-time batch platform area terminal information;
the strategy control instruction information comprises at least one of transformer capacity information of a transformer area, acquisition control interval period, reverse power upper limit value threshold value and reverse power lower limit value threshold value. In this embodiment, the policy control instruction information includes the capacity information of the transformer in the transformer area, the period of the acquisition control interval, the upper limit value threshold value of the reverse power and the lower limit value threshold value of the reverse power.
The material pipe platform module 200 is configured to receive the policy control instruction information and the batch inverter real-time data information and the real-time batch area terminal information uploaded by the fusion terminal module 300, store the batch inverter real-time data information and the real-time batch area terminal information, send the received batch inverter real-time data information and the received real-time batch area terminal information to the new energy control interface module 100, and send the received policy control instruction information to the fusion terminal module 300;
the above-mentioned fusion terminal module 300 monitors the inverter module 400 in real time and collects real-time batch area terminal information and batch inverter information at the same time, and forms batch inverter real-time data information after protocol standardization processing is performed on the batch inverter information, and sends the batch inverter real-time data information and the real-time batch area terminal information to the object pipe platform module 200, and meanwhile, the fusion terminal module 300 forms a control command after performing policy decomposition on policy control instruction information by comparing the reverse power of a target area in the batch inverter real-time data information, and sends the control command to the inverter module 400; the inverter module 400 performs real-time batch adjustments based on the control commands.
Specifically, as shown in fig. 2, the new energy control interface module 100 is provided with an equipment ledger entry unit 101, a data display unit 102 and a policy control unit 103; the equipment ledger input unit 101 is respectively connected with the data display unit 102 and the material pipe platform module 200, the data display unit 102 is connected with the strategy control unit 103, and the strategy control unit 103 is connected with the material pipe platform module 200;
the equipment ledger input unit 101 receives real-time batch platform area terminal information and batch inverter real-time data information, automatically divides equipment ledgers with corresponding inverter groups according to the platform area as a division standard, and sends the collected equipment ledgers to the data display unit 102;
wherein, the data display unit 102 is internally provided with power information of the platform area inverter, and obtains equipment platform account information, real-time batch platform area terminal information and real-time data information of the batch inverter through the equipment platform account input unit 101 to form display information;
the policy control unit 103 transmits policy control instruction information according to the inverter group according to AGC policy requirements based on the display information.
As shown in fig. 3, the above-mentioned object management platform module 200 is provided with an inverter data storage unit 201 and a policy sending unit 202, where the inverter data storage unit 201 is respectively connected with the policy sending unit 202, the equipment ledger entry unit 101 and the fusion terminal module 300, and the policy sending unit 202 is respectively connected with the policy control unit 103 and the fusion terminal module 300;
the inverter data storage unit 201 is configured to receive and store the real-time batch data information and the real-time batch area terminal information of the batch inverter sent by the fusion terminal module 300, and send the real-time batch data information and the real-time batch area terminal information of the batch inverter to the equipment ledger entry unit 101;
the policy sending unit 202 is configured to receive the policy control instruction information sent by the policy control unit 103, and send the policy control instruction information to the fusion terminal module 300.
Specifically, as shown in fig. 3, the above-mentioned fusion terminal module 300 is provided with a policy analysis unit 301, an inverter monitoring unit 302, and an inverter control unit 303, the policy analysis unit 301 is respectively connected with the inverter monitoring unit 302, the inverter control unit 303, and the policy transmitting unit 202, and the inverter monitoring unit 302 is respectively connected with the inverter module 400 and the inverter data storage unit 201;
the inverter monitoring unit 302 monitors the inverter module 400 and collects real-time batch area terminal information and batch inverter information of the inverter module 400, and performs protocol standardization processing on the batch inverter information to form batch inverter real-time data information, and sends the batch inverter real-time data information and the real-time batch area terminal information to the inverter data storage unit 201 respectively, and sends the batch inverter real-time data information to the strategy analysis unit 301;
the policy parsing unit 301 is configured to receive the policy control instruction information sent by the policy sending unit 202 and the real-time data information of the batch inverter at the same time, compare the real-time reverse power in the real-time data information of the batch inverter with the reverse power of the target station area in the policy control instruction information, perform policy decomposition, and then form a control command, and send the control command to the inverter control unit 303; wherein the inverter control unit 303 sends control commands to the inverter module 400.
The fusion terminal module 300 is used for monitoring the inverter module 400 in real time, collecting real-time batch area terminal information and batch inverter information at the same time, and carrying out protocol standardization processing on the batch inverter information to form batch inverter real-time data information. The specific modes which can be selected in actual operation are as follows: when the point table information of the end devices such as the inverter in the inverter module 400 is received and stored.
Such as:
and selecting corresponding point table information from the point table library of the inverter monitoring unit 302 according to the point table serial number in the strategy control instruction information issued by the strategy control unit 103, and pushing the point table information to a specific inverter of the inverter module 400.
And refreshing the self point table library through cloud edge cooperation according to the instruction of the strategy control instruction information.
Data information of the inverter module 400 is received and stored, subjected to protocol standardization, and uniformly sent to the inverter monitoring unit 302.
The point table storage mode is as follows:
for storing the point table information acquired from the fusion terminal module 300 for data acquisition and control of the inverter module 400.
Because the inverter in the inverter module 400 is burned along with the factory package, the inverter is fixed and unchanged, and the inverter is communicated and controlled with the equipment of the inverter module 400 according to the point table information stored by the fusion terminal module 300.
Because the terminal devices of the inverter module 400 are various, the Modbus protocols of all manufacturers have large differences, and in order to facilitate the rapid access of the terminal devices, the adaptation of the inverter module 400 and the fusion terminal module 300 is realized by adopting a protocol point table and device file issuing mode, so that the protocol is standardized.
Raw data acquisition in protocol point table and device file:
the account data of the marketing port area of the inverter module 400 is pushed, and a protocol point table and an equipment file of the area are generated according to the original data.
And scanning terminal equipment such as an on-site inverter and the like, and bar codes and two-dimensional codes at the tail end of the PLC to form a binding relation, generating original data, inputting the original data into a cloud arrangement system, and generating a protocol point table and an equipment file of a platform area according to the original data.
Protocol point table and device profile functions:
because the protocol point table corresponds to the terminal devices such as the inverter and the like one by one, the terminal device with one model corresponds to one set of protocol point table, and the inverter module 400 can automatically calculate the analysis methods of the transmission frame and the device return frame through the protocol point table stored by itself, so that the protocol standardization processing is realized.
And the orientation transmits a corresponding protocol point table and inverter communication parameters to the inverter.
Updating protocol point tables and device profiles for inverter module 400
The converged terminal regularly recalls information of the network access tail end, wherein the information comprises an MAC address, a protocol point table check code and an equipment file check code of the inverter module 400, the converged terminal compares corresponding information stored by the converged terminal, and if the information is inconsistent, the protocol point table and the equipment file are updated.
Communication with an inverter
The Modbus protocol framework of the end devices of the inverter module 400 is identical for each manufacturer, except for the point location and the parsing method, which are the Modbus protocols of 2 manufacturers as follows.
Manufacturer 1:
manufacturer 2:
| name of the name | Register address | Number of registers | Data type |
| A phase voltage | 4001 | 2 | int |
| B-phase voltage | 4003 | 2 | int |
| C-phase voltage | 4005 | 2 | int |
This can generate two protocol point tables, one for each: manufacturer 1:
| name of the name | Register head address | Number of registers | Data type |
| PhV_phsA | 1001 | 2 | float |
| PhV_phsB | 1003 | 2 | float |
| PhV_phsC | 1005 | 2 | float |
Manufacturer 2:
the fusion terminal module 300 analyzes the self-stored point table, extracts the first address and the number of registers, automatically frames Modbus messages, sends the Modbus messages to terminal equipment such as an inverter and the like, analyzes an inverter data response frame through the information of the point table, and stores data in the form of key: value, namely PhV _phsA:223, phv_phsa:224, phv_phsa:222, etc. While the specific inverter in the inverter module 400 reports real-time data of the end devices such as the inverter in this manner.
The policy decomposition of the fusion terminal module 300 is specifically as follows; step 1, respectively determining the transformer capacity, the acquisition control interval period, the reverse power upper limit value threshold value and the reverse power lower limit value threshold value of a target station area;
step 2, judging a reverse power threshold value of the current station area, and performing peak regulation control when the reverse power of the current station area exceeds a reverse power upper limit value threshold value of the current station area; and when the reverse power of the station area exceeds the reverse power lower limit value threshold value of the station area, carrying out peak shaving recovery.
The actual operation strategy is analyzed as follows: for example, the policy resolution unit 301 obtains a transformer capacity of 500000W of a certain transformer area, and the master station issues the transformer capacity 500000, the reverse power upper limit threshold 60% and the reverse power lower limit threshold 30% at intervals of 5min after the acquisition control interval.
Peak shaver control is performed when the station reverse power exceeds the threshold upper limit of the station area.
When the acquisition control period (5 min) is reached, the inverter monitoring unit 302 acquires the acquired data of the inverter for analyzing the acquired data, extracts the real-time power N of the station area, for example, n= -350000W, that is, represents that the reverse power of the station area is 350KW, and the policy analysis unit 301 calculates the maximum reverse power y=500000×60% and y=300000W of the station area according to the upper limit (for example, 60%) of the reverse overload threshold. The calculated area requires photovoltaic power derating m=350000-300000, m=50000.
The strategy analysis unit 301 calculates the current total photovoltaic output of the platform area as P according to the real-time generated power summation of all the inverters at this time, for example, p=450 KW (active power summation of all the inverters under the platform area), and calculates the target photovoltaic output p0=p-M, that is, p0=450 KW-50KW and p0=400 KW according to the calculated platform area photovoltaic output derating.
The strategy analysis unit 301 calculates the upper limit value of the generated power of each inverter of the regulation target according to the current power of all the inverters in the platform region in proportion. If the current generated power of each inverter is P1P 2P 3 … PN, the target power of each inverter is PN/p×p0, for example, the current power p1=50 KW of the first inverter, and the regulated power of the first inverter is 50/450×400=44.4 KW, so as to calculate the regulated powers of other inverters, and the inverter control unit 303 sequentially issues an upper power limit value for each inverter, so as to achieve the peak shaving purpose.
And when the reverse power of the station area is smaller than the threshold lower limit of the station area or no reverse power is generated, peak shaving recovery is carried out.
When the acquisition control period (5 min) is reached, the policy resolution unit 301 acquires and parses the interleaved data, extracts the real-time power N of the station area, for example, n= -100000W, that is, represents that the reverse power of the station area is 100KW, and the policy resolution unit 301 calculates the maximum reverse power y=500000×30% of the station area according to the lower limit (for example, 30%) of the reverse overload threshold, and y=150000w. The actual reverse power of the cell is located at the lower limit of the reverse power threshold of the cell.
When 5 times (5 cycles) are consecutively detected, the inverter control unit 303 resumes 100% output of all inverters under the bay in the inverter module 400.
When the novel energy management system is used, the novel energy management system is provided with a new energy control interface module, an object pipe platform module, a fusion terminal module and an inverter module, wherein the object pipe platform module is connected with the object pipe platform module, the object pipe platform module is connected with the fusion terminal module, and the fusion terminal module is connected with the inverter module; through setting up specific functional module, can reduce the loaded down with trivial details nature of use operation, succinct clear, easy operation has reduced use operation cost.
Example 3.
The other structures of the photovoltaic inverter group management and control method based on cloud orchestration APP are the same as those of embodiment 1 or 2, and the difference is that, as shown in fig. 5, specifically, the above-mentioned fusion terminal module 300 is further provided with a fusion storage unit 304 and a fusion external interface unit 305, where the fusion storage unit 304 is respectively connected with the inverter monitoring unit 302 and the fusion external interface unit 305, and the fusion storage unit 304 is used to store real-time batch platform terminal information, batch inverter information and batch inverter real-time data information of the inverter module 400. The fusion external interface unit 305 obtains the real-time batch zone terminal information, batch inverter information and batch inverter real-time data information.
After the fusion external interface unit receives the information received by the fusion storage unit, a field data interface can be provided for subsequent manual field data extraction, so that the worker can conveniently operate and acquire data, and the data can be conveniently acquired in real time when other irreversible accidents such as weather occur, and the safety guarantee is provided.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A group control method for household photovoltaic inverter based on cloud arrangement APP is characterized by comprising the following steps: and acquiring feedback information of the batch inverters in real time, and adjusting inverter voltages in batches according to the feedback information of the batch inverters and target reverse power threshold values through strategy control instruction information issued after the feedback information of the batch inverters is matched with corresponding inverter groups.
2. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 1, wherein: the novel energy control system comprises a novel energy control interface module, an object pipe platform module, a fusion terminal module and an inverter module, wherein the novel energy control interface module is connected with the object pipe platform module, the object pipe platform module is connected with the fusion terminal module, and the fusion terminal module is connected with the inverter module;
the new energy control interface module is internally provided with counter area inverter reverse power information, real-time batch counter area terminal information and batch inverter real-time data information are obtained through the object management platform module, an equipment ledger with a counter area group form is formed according to the real-time batch counter area terminal information and the batch inverter real-time data information, and strategy control instruction information is issued by taking a specific counter area in the equipment ledger as a command conveying port according to the counter area inverter reverse power information, the batch inverter real-time data information and the obtained real-time batch counter area terminal information;
the object management platform module is used for respectively receiving the strategy control instruction information, receiving the batch inverter real-time data information and the real-time batch area terminal information uploaded by the fusion terminal module, storing the batch inverter real-time data information and the real-time batch area terminal information, sending the received batch inverter real-time data information and the real-time batch area terminal information to the new energy control interface module, and sending the received strategy control instruction information to the fusion terminal module;
the fusion terminal module monitors the inverter module in real time, collects the real-time batch area terminal information and the batch inverter information at the same time, performs protocol standardization processing on the batch inverter information to form batch inverter real-time data information, sends the batch inverter real-time data information and the real-time batch area terminal information to the object management platform module,
meanwhile, the fusion terminal module performs strategy decomposition on the strategy control instruction information to form a control command after comparing the reverse power of the target station area in the real-time data information of the batch of inverters, and sends the control command to the inverter module; and the inverter module performs real-time batch adjustment according to the control command.
3. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 2, wherein: the new energy control interface module is provided with an equipment ledger input unit, a data display unit and a strategy control unit; the equipment ledger input unit is respectively connected with the data display unit and the object management platform module, the data display unit is connected with the strategy control unit, and the strategy control unit is connected with the object management platform module;
the equipment ledger input unit receives the real-time batch platform region terminal information and the batch inverter real-time data information, automatically divides the equipment ledgers with corresponding inverter groups according to the platform region as a division standard, and sends the collected equipment ledgers to the data display unit;
the data display unit is internally provided with power information of the platform area inverter, and meanwhile, equipment account information, real-time batch platform area terminal information and real-time data information of the batch inverter are acquired through the equipment account input unit to form display information;
and the strategy control unit sends strategy control instruction information according to the AGC strategy requirement and the inverter group according to the display information.
4. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 3, wherein: the object management platform module is provided with an inverter data storage unit and a strategy sending unit, the inverter data storage unit is respectively connected with the strategy sending unit, the equipment ledger input unit and the fusion terminal module, and the strategy sending unit is respectively connected with the strategy control unit and the fusion terminal module;
the inverter data storage unit is used for receiving and storing the real-time batch inverter data information and the real-time batch area terminal information sent by the fusion terminal module, and sending the batch inverter real-time data information and the real-time batch area terminal information to the equipment ledger entry unit;
the policy sending unit is used for receiving the policy control instruction information sent by the policy control unit and sending the policy control instruction information to the fusion terminal module.
5. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 4, wherein: the integrated terminal module is provided with a strategy analysis unit, an inverter monitoring unit and an inverter control unit, wherein the strategy analysis unit is respectively connected with the inverter monitoring unit, the inverter control unit and the strategy sending unit, and the inverter monitoring unit is respectively connected with the inverter module and the inverter data storage unit;
the inverter monitoring unit monitors the inverter module, collects the real-time batch area terminal information and the batch inverter information of the inverter module, performs protocol standardization processing on the batch inverter information to form batch inverter real-time data information, and respectively sends the batch inverter real-time data information and the real-time batch area terminal information to the inverter data storage unit and sends the batch inverter real-time data information to the strategy analysis unit;
the strategy analysis unit is used for respectively receiving the strategy control instruction information and the batch inverter real-time data information sent by the strategy sending unit, forming the control command after strategy decomposition by comparing the real-time reverse power in the batch inverter real-time data information with the reverse power of the target station area in the strategy control instruction information, and sending the control command to the inverter control unit;
the inverter control unit transmits the control command to the inverter module.
6. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 5, wherein: the fusion terminal module is further provided with a fusion storage unit and a fusion external interface unit, the fusion storage unit is respectively connected with the inverter monitoring unit and the fusion external interface unit, the fusion storage unit is used for storing real-time batch area terminal information, batch inverter information and batch inverter real-time data information of the inverter module, and the fusion external interface unit obtains the real-time batch area terminal information, the batch inverter information and the batch inverter real-time data information.
7. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 6, wherein: the strategy control instruction information comprises at least one of transformer capacity information of a transformer area, acquisition control interval period, reverse power upper limit value threshold value and reverse power lower limit value threshold value.
8. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 6, wherein: the strategy decomposition of the fusion terminal module is specifically as follows; step 1, respectively determining the transformer capacity, the acquisition control interval period, the reverse power upper limit value threshold value and the reverse power lower limit value threshold value of a target station area;
step 2, judging a reverse power threshold value of the current station area, and performing peak regulation control when the reverse power of the current station area exceeds a reverse power upper limit value threshold value of the current station area; and when the reverse power of the station area exceeds the reverse power lower limit value threshold value of the station area, carrying out peak shaving recovery.
9. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 1, wherein:
the new energy control interface module is connected with the object management platform module through a network, the object management platform module is connected with the fusion terminal module through a network, and the fusion terminal module is connected with the inverter module through a network.
10. The cloud orchestration APP-based household photovoltaic inverter group management and control method according to claim 1, wherein:
the new energy control interface module is electrically connected with the object pipe platform module, the object pipe platform module is electrically connected with the fusion terminal module, and the fusion terminal module is electrically connected with the inverter module.
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