CN110601258A - Communication control method, device, storage medium and system for microgrid system - Google Patents
Communication control method, device, storage medium and system for microgrid system Download PDFInfo
- Publication number
- CN110601258A CN110601258A CN201910848910.8A CN201910848910A CN110601258A CN 110601258 A CN110601258 A CN 110601258A CN 201910848910 A CN201910848910 A CN 201910848910A CN 110601258 A CN110601258 A CN 110601258A
- Authority
- CN
- China
- Prior art keywords
- output voltage
- preset
- information
- voltage
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The application relates to a communication control method, a device, a storage medium and a system of a microgrid system, which are used for acquiring communication information of the microgrid system; obtaining transmission data according to the communication information and a preset transmission format; and controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information. Through the control output voltage that becomes more meticulous, utilize the regular small change of voltage to adjust output voltage's fluctuation law with communication information, need not special communication cable that erects, effective reduce cost reduces the maintenance degree of difficulty.
Description
Technical Field
The present disclosure relates to the field of microgrid system control technologies, and in particular, to a communication control method, apparatus, storage medium, and system for a microgrid system.
Background
The microgrid refers to a small power generation and distribution system composed of a distributed power supply, an energy storage device, an energy conversion device, a load, a monitoring and protecting device and the like. The micro-grid aims to realize flexible and efficient application of distributed power supplies, solve the problem of grid connection of the distributed power supplies with large quantity and various forms, fully promote large-scale access of the distributed power supplies and renewable energy sources by developing and extending the micro-grid, realize high-reliability supply of various energy forms of loads, and be an effective mode for realizing an active power distribution network, so that the traditional power grid is transited to a smart power grid.
At present, a dedicated communication cable is mostly adopted in a microgrid system to transmit control information, but the communication cable is difficult to erect, high in cost and difficult to maintain later, so that a low-cost communication control method capable of effectively transmitting control information is urgently needed
Disclosure of Invention
Therefore, it is necessary to provide a microgrid system communication control method, apparatus, storage medium and system with reduced cost for solving the technical problem that a dedicated communication cable needs to be erected for communication in the conventional microgrid system, which is high in cost.
A communication control method of a microgrid system comprises the following steps:
acquiring communication information of a microgrid system;
obtaining transmission data according to the communication information and a preset transmission format;
and controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information.
In one embodiment, the preset transmission format includes a start bit, an address field, a data field, a check field, and an end bit, and the obtaining of the transmission data according to the communication information and the preset transmission format includes:
analyzing according to the communication information to obtain a target load address and transmission effective data;
generating a check code according to the target load address and the transmission effective data;
binary conversion is carried out according to the target load address, the transmission effective data and the check code to obtain binary information of the transmission address, the binary information of the effective data and the binary information of the check code;
and obtaining transmission data according to preset start bit information, transmission address binary information, effective data binary information, check code binary information and preset end bit information.
In one embodiment, the controlling the parameter of the output voltage according to the transmission data and the preset encoding rule includes:
controlling parameters of output voltage corresponding to the start bit information according to the start bit information and a preset first coding rule;
controlling parameters of output voltage corresponding to the binary information of the transmission address according to the binary information of the transmission address and a preset second coding rule;
controlling the parameters of the output voltage corresponding to the effective data binary information according to the effective data binary information and a preset third coding rule;
controlling parameters of output voltage corresponding to the check code binary information according to the check code binary information and a preset third coding rule;
and controlling the parameters of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth coding rule.
In one embodiment, controlling a parameter of an output voltage corresponding to the start bit information according to the start bit information and a preset first coding rule includes:
and controlling the output voltage according to the start bit information to preset the first voltage for a first duration, and then presetting the second voltage for the first duration.
In one embodiment, the preset second encoding rule is that when the output voltage continues for the second duration with the preset second voltage after the output voltage continues for the second duration with the preset first voltage, the corresponding binary is 1, and when the output voltage continues for the second duration with the preset second voltage after the output voltage continues for the second duration with the preset first voltage, the corresponding binary is 0; controlling parameters of output voltage corresponding to the transmission address binary information according to the transmission address binary information and a preset second coding rule, wherein the parameters comprise:
and controlling the voltage according to the binary information of the transmission address to control the size and duration of the output voltage according to a preset second coding rule.
In one embodiment, the preset third encoding rule is that when the output voltage is continued for the third duration with the preset first voltage, the corresponding binary is 1, and when the output voltage is continued for the third duration with the preset first voltage, the corresponding binary is 0; controlling the parameters of the output voltage corresponding to the valid data binary information according to the valid data binary information and a preset third coding rule, wherein the parameters comprise:
and controlling the voltage according to the effective data binary information to control the size and duration of the output voltage according to a preset third coding rule.
In one embodiment, the controlling the parameter of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth encoding rule includes:
and controlling the output voltage according to the end bit information to preset the second voltage for a first duration, and then presetting the first voltage for the first duration.
A communication control device of a microgrid system comprises:
the communication information acquisition module is used for acquiring communication information;
the transmission data determining module is used for obtaining transmission data according to the communication information and a preset transmission format;
and the output voltage parameter control module is used for controlling parameters of the output voltage according to the transmission data and a preset coding rule and adjusting the fluctuation rule of the output voltage so as to transmit communication information.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
acquiring communication information of a microgrid system;
obtaining transmission data according to the communication information and a preset transmission format;
and controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information.
A micro-grid system communication system comprises a converter and a load, wherein the converter is in communication connection with the load;
the converter is used for controlling parameters of the output voltage according to the method and adjusting the fluctuation rule of the output voltage so as to transmit communication information;
the load is used for identifying and obtaining communication information according to the fluctuation rule of the received voltage and executing corresponding operation according to the communication information.
The communication control method, the device, the storage medium and the system of the microgrid system acquire communication information of the microgrid system; obtaining transmission data according to the communication information and a preset transmission format; and controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information. Through the control output voltage that becomes more meticulous, utilize the regular small change of voltage to adjust output voltage's fluctuation law with communication information, need not special communication cable that erects, effective reduce cost reduces the maintenance degree of difficulty.
Drawings
Fig. 1 is a diagram of a microgrid system architecture in an embodiment;
fig. 2 is a flowchart illustrating a communication control method for the piconet system according to an embodiment;
fig. 3 is a flowchart illustrating a communication control method for the piconet system according to another embodiment;
FIG. 4 is a diagram of communication content and transmission formats in one embodiment;
fig. 5 is a flowchart illustrating a communication control method for the piconet system according to another embodiment;
FIG. 6 is a diagram illustrating start bit and end bit definitions in one embodiment;
FIG. 7 is a diagram illustrating address segment data definition in one embodiment;
FIG. 8 is a diagram illustrating data definition of data segments and check segments in one embodiment;
FIG. 9 is a diagram illustrating an embodiment of a communication application in accordance with an embodiment;
fig. 10 is a block diagram illustrating a communication control apparatus of the piconet system according to an embodiment;
fig. 11 is a block diagram of a communication system of the piconet system according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The microgrid system communication control method provided by the application can be applied to the application environment shown in fig. 1. Fig. 1 is a micro grid system architecture diagram, which is composed of a main module and a load module, wherein the main module is an inverter, and loads of the main module establish three-level bus voltage, high-voltage buses 750V and 400V and a low-voltage bus 48V, and finely control output voltage, and transmit control instructions and step-by-step transmission to a load of the current level; and the load module receives the control instruction of the main module at the current stage and executes the control target.
In an embodiment, as shown in fig. 2, a microgrid system communication control method is provided, which is described by taking the method as an example for being applied to a converter, and includes the following steps:
step S110: and acquiring communication information. Specifically, in this embodiment, the communication information includes the target load address and the transmission effective data.
Step S120: and obtaining transmission data according to the communication information and a preset transmission format.
Specifically, the communication information is arranged according to a preset transmission format to obtain transmission data, and in this embodiment, the transmission formats of the start bit, the address field, the data field, the check field, and the end bit are defined as the preset transmission formats, which can be understood and not limited to the above transmission formats. The master module transmits a start bit for the current-level equipment to identify the start of communication; the address field is used for distinguishing different devices of the level; the data segment is used for transmitting specific control content; the check section is used for transmitting check information to ensure the validity of data transmission; the end segment is used for the current level device to identify the end of the communication.
Step S130: and controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information.
Specifically, after the communication information is arranged according to a preset transmission format to obtain transmission data, parameter communication information for finely controlling output voltage is carried out according to a preset coding rule, and the target load identifies the communication information by receiving a voltage signal and executes corresponding control operation.
According to the communication control method of the micro-grid system, the output voltage is finely controlled, the fluctuation rule of the output voltage is adjusted by regular small fluctuation of the voltage to transmit effective communication information, a special communication cable does not need to be erected, the cost is effectively reduced, and the maintenance difficulty is reduced.
In one embodiment, as shown in fig. 3 and 4, the predetermined transmission format is a start bit, an address field, a data field, a check field, and an end bit, and step S120 includes steps S122 to S128.
Step S122: and analyzing according to the communication information to obtain a target load address and transmission effective data. Specifically, the communication information includes a target load address and transmission valid data, and the communication information is analyzed to obtain the target load address and the transmission valid data, for example, the address is 0x11, and the transmission valid data is 0x 1F.
Step S124: and generating a check code according to the target load address and the transmission effective data. Specifically, the check code is obtained through parity check according to the target load address and the transmission valid data, in this embodiment, the address is 0x11, the transmission valid data is 0x1F, and the generated check code is 0x 0E.
Step S126: and carrying out binary conversion according to the target load address, the transmission effective data and the check code to obtain binary information of the transmission address, the binary information of the effective data and the binary information of the check code. Specifically, in this embodiment, the target load address 0x11 is converted into a binary value of 00010001, the transmission valid data 0x1F is converted into a binary value of 00011111, and the check code 0x0E is converted into a binary value of 00001110.
Step S128: and obtaining transmission data according to preset start bit information, transmission address binary information, effective data binary information, check code binary information and preset end bit information. Specifically, in the present embodiment, the transmission data is obtained as the start bit +000100010001111100001110+ stop bit based on the above information.
Further, it can be understood that, since the microgrid system communication involves transmitting a control instruction to the load of the current stage and also involves transmitting a control instruction from stage to stage, the communication information acquired by the main module, i.e., the converter, may be packed unprocessed communication information or information that has been subjected to binary conversion.
In one embodiment, step S130 includes: and controlling parameters of the output voltage according to preset start bit information, transmission address binary information, effective data binary information, check code binary information, preset end bit information and a corresponding coding rule.
Further, between the parameters of the output voltage according to each information and the corresponding encoding rule, the method further comprises the following steps: and outputting the preset rated voltage for a preset duration. For example, after controlling the parameter of the output voltage according to the preset start bit information and the corresponding coding rule, the preset rated voltage is output for a preset duration, and then the parameter of the output voltage is controlled according to the transmission address binary information and the corresponding coding rule, and so on, and the transmission of the communication information is completed.
In one embodiment, as shown in fig. 5, the preset encoding rules include a preset first encoding rule, a preset second encoding rule, a preset third encoding rule and a preset fourth encoding rule, and step S130 includes steps S131 to S135.
Step S131: and controlling the parameters of the output voltage corresponding to the start bit information according to the start bit information and a preset first coding rule.
Specifically, the master module transmits start-stop information by controlling the output voltage V/V1/V2 and controlling the time of each platform voltage, where V1 is a high voltage (corresponding to a preset first voltage), a V2-bit low voltage (corresponding to a preset second voltage), and V is a rated voltage (corresponding to a preset rated voltage), in this embodiment, a preset first coding rule is that after the output voltage lasts for a first duration with the preset first voltage, the preset second voltage lasts for the first duration, that is, as shown in fig. 6, the low voltage after the high voltage and the duration of each of the low voltage and the high voltage are t1 as start bits. Further, step S131 includes controlling the output voltage to preset the first voltage for the first duration according to the start bit information, and then to preset the second voltage for the first duration.
Step S132: and controlling parameters of output voltage corresponding to the binary information of the transmission address according to the binary information of the transmission address and a preset second coding rule.
Specifically, the master module transmits address segment information by controlling the output voltage V/V1/V2 and controlling the time of each platform voltage, where the address information is composed of 8-bit binary data, V1 is a high voltage, V2 is a low voltage, and V is a rated voltage, in this embodiment, the preset second encoding rule is that when the output voltage lasts for the second duration with the preset second voltage after lasting for the second duration with the preset first voltage, the corresponding binary is 1, and when the output voltage lasts for the second duration with the preset second voltage after lasting for the second duration with the preset first voltage, the corresponding binary is 0; as shown in fig. 7, binary 1 is transmitted after the high voltage and the low voltage respectively with the duration of t2, and binary 0 is transmitted after the high voltage and the low voltage respectively with the duration of t2, so that the 8-bit binary address field data transmission is completed according to the encoding rule. Further, step S132 includes controlling the voltage according to the transmission address binary information to control the magnitude and duration of the output voltage according to a preset second encoding rule.
Step S133: and controlling the parameters of the output voltage corresponding to the effective data binary information according to the effective data binary information and a preset third coding rule.
Step S134: and controlling parameters of output voltage corresponding to the check code binary information according to the check code binary information and a preset third coding rule.
Specifically, the data segment and the check segment are defined, the main module transmits data and check information by controlling the output voltage V/V1/V2 and the time of controlling the voltage of each platform, the data information consists of a plurality of 8-bit binary systems, the length can be specifically defined according to specific requirements, the check information is an 8-bit binary system, V1 is a high voltage, V2 is a low voltage, and V is a rated voltage, in this embodiment, a preset third coding rule is that when the output voltage lasts for a third duration with a preset first voltage, the corresponding binary system is 1, and when the output voltage lasts for the third duration with a preset second voltage, the corresponding binary system is 0; that is, as shown in fig. 8, binary 1 is transmitted after the high voltage and the low voltage respectively with the duration of t3, and binary 0 is transmitted after the high voltage and the high voltage respectively with the duration of t 3. Further, step S133 includes controlling the voltage according to the valid data binary information to control the magnitude and duration of the output voltage according to a preset third encoding rule; step S134 includes controlling the voltage according to the check code binary information to control the magnitude and duration of the output voltage according to a preset third encoding rule.
Step S135: and controlling the parameters of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth coding rule.
Specifically, the master module transmits start-stop information by controlling the output voltage V/V1/V2 and controlling the time of each platform voltage, where V1 is a high voltage, V2 is a low voltage, and V is a rated voltage, in this embodiment, the preset fourth encoding rule is that after the output voltage lasts for a first duration with a preset second voltage, the output voltage lasts for the first duration with a preset first voltage, that is, as shown in fig. 6, the last time of the first low voltage and the last time of the last low voltage are t1 respectively, and an address, data, and a check bit are located between the start bit and the end bit. Further, step S135 includes controlling the output voltage to preset the second voltage for the first duration according to the end bit information, and then to preset the first voltage for the first duration.
In one embodiment, after step S131, before step S132, after step S132, before step S133, after step S133, before step S134, and after step S134, before step S135, respectively, the method further comprises outputting the preset rated voltage for a preset duration.
In a detailed embodiment, as shown in the communication application embodiment shown in fig. 9, in this embodiment, the address is 0x11, the transmission valid data is 0x1F, the parity check code is 0x0E, and the transmission data after being sorted into binary is the start bit +000100010001111100001110+ stop bit. The master module sends out a start bit by controlling the output voltage to work for a time t1 at a high voltage V1 and then controlling the output voltage to work for a time t1 at a low voltage V2, and the start bit is calibrated as a communication start bit; the start bit transmits 8-bit address bits after a certain time interval, the transmission address of the embodiment is 0x11, the transmission address is converted into binary system of 00010001, the main module controls the output voltage to work for t2 at high voltage V1, then controls the output voltage to work for t2 at low voltage V2 as binary system 1, controls the output voltage to work for t2 at low voltage V2, then controls the output voltage of the main module to work for t2 at high voltage V1 as binary system 0, thereby completing data transmission of 8-bit binary address segments according to the rule, and the receiving module monitors the voltage and the running time and compares the voltage with the address code of the receiving module to confirm whether the subsequently transmitted data is valid; after the transmission of the address segment is completed, the data segment is transmitted by 8-bit binary number, the data length is confirmed according to the data size, the data length is 1 in the embodiment, the transmission content is 0x1F, the data segment is converted into binary system 00001110, the main module controls the output voltage to work for time t3 with high voltage V1, then controls the output voltage to work for time t3 with low voltage V2 as binary system 1, controls the output voltage to work for time t3 with low voltage V2, then controls the output voltage of the main module to work for time t3 with high voltage V1 as binary system 0, and accordingly 8-bit data segment position coding is completed regularly; the parity check is carried out on the check section, the check code of 0x11 and 0x1F is 0x0E, the binary code of the check code is 00001110, the main module controls the output voltage to work for t3 with high voltage V1, then controls the output voltage to work for t3 with low voltage V2 as binary 1, the main module controls the output voltage to work for t3 with low voltage V2, then the output voltage of the main module uses t3 with high voltage V1 as binary 0, and the check code is transmitted according to the coding rule, wherein the check code is equal to 8; and after the check code transmission is finished, sending the stop bit by the main module by controlling the output voltage to work for time t1 at high voltage V2 and then controlling the output voltage to work for time t1 at low voltage V1, and calibrating the stop bit into a communication stop bit to finish the whole communication process. It is understood that in other embodiments, the duration may be flexibly adjusted according to different requirements, the voltage value may be adjusted according to different requirements, and the sequence of the high voltage and the low voltage may be adjusted according to different voltages. Furthermore, the first duration, the second duration and the third duration may be equal, the preset first coding rule, the preset second coding rule, the preset third coding rule and the preset fourth coding rule may also be the same, and the data of different segments may be distinguished by adding an interval rated voltage between every two segments of transmission information or by switching the number of high and low voltages.
According to the communication control method of the micro-grid system, the output voltage is finely controlled, the fluctuation rule of the output voltage is adjusted by regular small fluctuation of the voltage to communicate information, a special communication cable does not need to be erected, the cost is effectively reduced, and the maintenance difficulty is reduced.
It should be understood that although the various steps in the flowcharts of fig. 2-3, 5 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-3, 5 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 10, an apparatus for piconet system communication control is provided, which includes a communication information acquiring module 110, a transmission data determining module 120, and an output voltage parameter control module 130.
The communication information obtaining module 110 is configured to obtain communication information; the transmission data determining module 120 is configured to obtain transmission data according to the communication information and a preset transmission format; the output voltage parameter control module 130 is configured to control parameters of the output voltage according to the transmission data and a preset encoding rule, and adjust a fluctuation rule of the output voltage to transmit the communication information.
In one embodiment, the preset transmission format is a start bit, an address segment, a data segment, a check segment and an end bit, the transmission data determining module comprises an analyzing unit, a check code generating unit, a binary conversion unit and a transmission data determining unit, and the analyzing unit is used for analyzing according to the communication information to obtain a target load address and transmission effective data; the check code generating unit is used for generating a check code according to the target load address and the transmission effective data; the binary conversion unit is used for performing binary conversion according to the target load address, the transmission effective data and the check code to obtain binary information of the transmission address, the binary information of the effective data and the binary information of the check code; the transmission data determining unit is used for obtaining transmission data according to preset start bit information, transmission address binary information, effective data binary information, check code binary information and preset end bit information.
In one embodiment, the output voltage parameter control module includes a start bit output voltage control unit, an address segment output voltage control unit, a data segment output voltage control unit, a check segment output voltage control unit, and an end bit output voltage control unit, where the start bit output voltage control unit is configured to control a parameter of an output voltage corresponding to start bit information according to the start bit information and a preset first coding rule; the address segment output voltage control unit is used for controlling parameters of output voltage corresponding to the transmission address binary information according to the transmission address binary information and a preset second coding rule; the data segment output voltage control unit is used for controlling parameters of output voltage corresponding to the effective data binary information according to the effective data binary information and a preset third coding rule; the check segment output voltage control unit is used for controlling parameters of output voltage corresponding to the check code binary information according to the check code binary information and a preset third coding rule; and the end bit output voltage control unit is used for controlling the parameters of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth coding rule.
In one embodiment, the start bit output voltage control unit controls the output voltage to preset the first voltage for the first duration according to the start bit information, and then to preset the second voltage for the first duration.
In one embodiment, the preset second encoding rule is that when the output voltage is continued for the second duration with the preset second voltage after being continued for the second duration with the preset first voltage, the corresponding binary is 1, and when the output voltage is continued for the second duration with the preset first voltage after being continued for the second duration with the preset second voltage, the corresponding binary is 0; the address segment output voltage control unit controls the voltage according to the transmission address binary information to control the size and duration of the output voltage according to a preset second coding rule.
In one embodiment, the preset third encoding rule is that when the output voltage is continued for the third duration with the preset first voltage, the corresponding binary is 1, and when the output voltage is continued for the third duration with the preset first voltage, the corresponding binary is 0; the data segment output voltage control unit controls the voltage according to the effective data binary information and controls the size and duration of the output voltage according to a preset third coding rule; the check segment output voltage control unit controls the voltage according to the check segment binary information to control the size and duration of the output voltage according to a preset third coding rule.
In one embodiment, the end bit output voltage control unit controls the output voltage to preset the second voltage for the first duration according to the end bit information, and then to preset the first voltage for the first duration.
Above-mentioned microgrid system communication control device through the control output voltage that becomes more meticulous, utilizes the regular small amplitude change of voltage to adjust output voltage's fluctuation law with communication information, need not the special communication cable that erects, effective reduce cost reduces and maintains the degree of difficulty.
For specific limitations of the piconet system communication control device, reference may be made to the above limitations on the piconet system communication control method, which are not described herein again. All or part of each module in the communication control device of the piconet system can be implemented by software, hardware or a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring communication information of a microgrid system;
obtaining transmission data according to the communication information and a preset transmission format; and controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information.
In one embodiment, the computer program when executed by the processor further performs the steps of: analyzing according to the communication information to obtain a target load address and transmission effective data; generating a check code according to the target load address and the transmission effective data; binary conversion is carried out according to the target load address, the transmission effective data and the check code to obtain binary information of the transmission address, the binary information of the effective data and the binary information of the check code; and obtaining transmission data according to preset start bit information, transmission address binary information, effective data binary information, check code binary information and preset end bit information.
In one embodiment, the computer program when executed by the processor further performs the steps of: controlling parameters of output voltage corresponding to the start bit information according to the start bit information and a preset first coding rule; controlling parameters of output voltage corresponding to the binary information of the transmission address according to the binary information of the transmission address and a preset second coding rule; controlling the parameters of the output voltage corresponding to the effective data binary information according to the effective data binary information and a preset third coding rule; controlling parameters of output voltage corresponding to the check code binary information according to the check code binary information and a preset third coding rule; and controlling the parameters of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth coding rule.
In one embodiment, the computer program when executed by the processor further performs the steps of: and controlling the output voltage according to the start bit information to preset the first voltage for a first duration, and then presetting the second voltage for the first duration.
In one embodiment, the computer program when executed by the processor further performs the steps of: and controlling the voltage according to the binary information of the transmission address to control the size and duration of the output voltage according to a preset second coding rule.
In one embodiment, the computer program when executed by the processor further performs the steps of: and controlling the voltage according to the effective data binary information to control the size and duration of the output voltage according to a preset third coding rule.
In one embodiment, the computer program when executed by the processor further performs the steps of: and controlling the output voltage according to the end bit information to preset the second voltage for a first duration, and then presetting the first voltage for the first duration.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In one embodiment, as shown in fig. 11, a microgrid system communication system includes an inverter 210 and a load 220, wherein the inverter 210 is communicatively connected to the load 220; the converter 210 is configured to obtain communication information of the microgrid system; obtaining transmission data according to the communication information and a preset transmission format; controlling parameters of the output voltage according to the transmission data and a preset encoding rule, and adjusting a fluctuation rule of the output voltage to transmit communication information; the load 220 is configured to identify and obtain communication information according to a fluctuation rule of the received voltage, and perform a corresponding operation according to the communication information.
Specifically, in this embodiment, three levels of bus voltages are established, three sets of main converters are provided, that is, a main module 1, a main module 2 and a main module 3 in fig. 1 are provided, each set of main module corresponds to a series of loads, such as a battery, a photovoltaic and the like, the main module 1 is an AC/DC converter, the main module 2 includes a DC/DC converter and a DC/AC converter, and information is communicated and transmitted step by step to the load by finely controlling an output voltage. In one embodiment, the communication information includes a target load address and transmission effective data, the load is further configured to compare the target load address with its own address code, and when the comparison result is consistent, perform a corresponding operation according to the transmission effective data.
The main module 1 obtains packed unprocessed communication information, converts the data into binary information according to a target load address and transmission effective data carried in the communication information, generates transmission data according to a preset transmission format if the transmission data is transmitted to a load of the current level, controls a fluctuation rule of output voltage to transmit the communication information to a corresponding load, transmits the binary information to the main module 2 if the transmission data is transmitted to the load of the current level, generates the transmission data according to the preset transmission format by the main module 2, controls the fluctuation rule of the output voltage to transmit the communication information to the corresponding load of the main module 2, transmits the binary information to the main module 3 and performs voltage reduction processing if the corresponding address is the load corresponding to the main module 3, generates the transmission data according to the preset transmission format by the main module 3, and controls the fluctuation rule of the output voltage, so as to transmit the communication information to the corresponding load of the main module 3, and so on, and complete the communication. For specific limitations of the piconet system communication system, reference may be made to the above limitations on the piconet system communication control method, which are not described herein again.
According to the micro-grid system communication system, the output voltage is finely controlled, the fluctuation rule of the output voltage is adjusted by regular small-amplitude change of the voltage, communication information is obtained, a communication cable does not need to be specially erected, the cost is effectively reduced, and the maintenance difficulty is reduced.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A communication control method for a microgrid system, the method comprising:
acquiring communication information of a microgrid system;
obtaining transmission data according to the communication information and a preset transmission format;
and controlling parameters of the output voltage according to the transmission data and a preset coding rule, and adjusting a fluctuation rule of the output voltage to transmit the communication information.
2. The method of claim 1, wherein the predetermined transmission format is a start bit, an address field, a data field, a check field, and an end bit, and the obtaining the transmission data according to the communication information and the predetermined transmission format comprises:
analyzing according to the communication information to obtain a target load address and transmission effective data;
generating a check code according to the target load address and the transmission effective data;
performing binary conversion according to the target load address, the transmission effective data and the check code to obtain binary information of the transmission address, the binary information of the effective data and the binary information of the check code;
and obtaining transmission data according to preset start bit information, the binary information of the transmission address, the binary information of the valid data, the binary information of the check code and preset end bit information.
3. The method of claim 2, wherein the controlling the parameter of the output voltage according to the transmission data and a preset encoding rule comprises:
controlling parameters of output voltage corresponding to the start bit information according to the start bit information and a preset first coding rule;
controlling parameters of output voltage corresponding to the binary information of the transmission address according to the binary information of the transmission address and a preset second coding rule;
controlling parameters of output voltage corresponding to the effective data binary information according to the effective data binary information and a preset third coding rule;
controlling parameters of output voltage corresponding to the check code binary information according to the check code binary information and a preset third coding rule;
and controlling the parameters of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth encoding rule.
4. The method according to claim 3, wherein the controlling the parameter of the output voltage corresponding to the start bit information according to the start bit information and a preset first encoding rule comprises:
and controlling the output voltage according to the start bit information to preset a first voltage for a first duration, and then presetting a second voltage for the first duration.
5. The method of claim 3, wherein the predetermined second encoding rule is that when the output voltage is maintained at the predetermined first voltage for the second duration and then at the predetermined second voltage for the second duration, the corresponding binary is 1, and when the output voltage is maintained at the predetermined second voltage for the second duration and then at the predetermined first voltage for the second duration, the corresponding binary is 0; the controlling the parameter of the output voltage corresponding to the transmission address binary information according to the transmission address binary information and a preset second coding rule comprises the following steps:
and controlling the magnitude and duration of the output voltage according to the transmission address binary information control voltage by a preset second coding rule.
6. The method according to claim 3, wherein the predetermined third encoding rule is that when the output voltage is maintained at the predetermined first voltage for the third duration and then at the predetermined second voltage for the third duration, the corresponding binary is 1, and when the output voltage is maintained at the predetermined second voltage for the third duration and then at the predetermined first voltage for the third duration, the corresponding binary is 0; the controlling the parameter of the output voltage corresponding to the valid data binary information according to the valid data binary information and a preset third coding rule includes:
and controlling the voltage according to the effective data binary information to control the size and duration of the output voltage according to a preset third coding rule.
7. The method according to claim 3, wherein the controlling the parameter of the output voltage corresponding to the end bit information according to the end bit information and a preset fourth encoding rule comprises:
and controlling the output voltage according to the end bit information to preset a second voltage for a first duration, and then presetting a first voltage for the first duration.
8. A communication control apparatus for a microgrid system, the apparatus comprising:
the communication information acquisition module is used for acquiring communication information;
the transmission data determining module is used for obtaining transmission data according to the communication information and a preset transmission format;
and the output voltage parameter control module is used for controlling parameters of the output voltage according to the transmission data and a preset coding rule and adjusting a fluctuation rule of the output voltage so as to transmit the communication information.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
10. The microgrid system communication system is characterized by comprising a converter and a load, wherein the converter is in communication connection with the load;
the converter is used for controlling parameters of the output voltage according to the method of any one of claims 1 to 7 and adjusting the fluctuation rule of the output voltage so as to transmit the communication information;
the load is used for identifying and obtaining communication information according to the fluctuation rule of the received voltage and executing corresponding operation according to the communication information.
11. The system of claim 10, wherein the communication information comprises a target load address and transmission valid data, the load is further configured to compare the target load address with its own address code, and when the comparison result is consistent, perform a corresponding operation according to the transmission valid data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848910.8A CN110601258A (en) | 2019-09-09 | 2019-09-09 | Communication control method, device, storage medium and system for microgrid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910848910.8A CN110601258A (en) | 2019-09-09 | 2019-09-09 | Communication control method, device, storage medium and system for microgrid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601258A true CN110601258A (en) | 2019-12-20 |
Family
ID=68858223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910848910.8A Pending CN110601258A (en) | 2019-09-09 | 2019-09-09 | Communication control method, device, storage medium and system for microgrid system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601258A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133589A (en) * | 2005-03-03 | 2008-02-27 | 罗伯特·博世有限公司 | Pulse width modulation data transmission method and transmitter and receiver therefor |
| CN104092303A (en) * | 2014-07-03 | 2014-10-08 | 内蒙古大学 | Energy management and coordination control system and method for wind and solar energy distributed power generation independent micro grid |
| CN105389865A (en) * | 2014-09-05 | 2016-03-09 | 深圳光启智能光子技术有限公司 | Digital signal sending method capable of shortening sending time, digital signal receiving method and mobile terminal |
| US20170194790A1 (en) * | 2016-01-05 | 2017-07-06 | Electronics And Telecommunications Research Institute | Micro-grid energy management system |
| CN107707022A (en) * | 2017-08-30 | 2018-02-16 | 珠海格力电器股份有限公司 | A kind of DC micro power grid system and its communication means |
| CN108215674A (en) * | 2016-12-13 | 2018-06-29 | 比亚迪股份有限公司 | The transmission of tire pressure and processing method and processing device, TPMS |
| CN109979183A (en) * | 2019-05-05 | 2019-07-05 | 长沙优力电驱动系统有限公司 | Signaling method, method of reseptance and signal transmission apparatus based on current carrier |
-
2019
- 2019-09-09 CN CN201910848910.8A patent/CN110601258A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101133589A (en) * | 2005-03-03 | 2008-02-27 | 罗伯特·博世有限公司 | Pulse width modulation data transmission method and transmitter and receiver therefor |
| CN104092303A (en) * | 2014-07-03 | 2014-10-08 | 内蒙古大学 | Energy management and coordination control system and method for wind and solar energy distributed power generation independent micro grid |
| CN105389865A (en) * | 2014-09-05 | 2016-03-09 | 深圳光启智能光子技术有限公司 | Digital signal sending method capable of shortening sending time, digital signal receiving method and mobile terminal |
| US20170194790A1 (en) * | 2016-01-05 | 2017-07-06 | Electronics And Telecommunications Research Institute | Micro-grid energy management system |
| CN108215674A (en) * | 2016-12-13 | 2018-06-29 | 比亚迪股份有限公司 | The transmission of tire pressure and processing method and processing device, TPMS |
| CN107707022A (en) * | 2017-08-30 | 2018-02-16 | 珠海格力电器股份有限公司 | A kind of DC micro power grid system and its communication means |
| CN109979183A (en) * | 2019-05-05 | 2019-07-05 | 长沙优力电驱动系统有限公司 | Signaling method, method of reseptance and signal transmission apparatus based on current carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110525262B (en) | Charging system | |
| CN111516539A (en) | Power distribution method and device, and computer readable storage medium | |
| CN111190123A (en) | Current coding method and system for pairing breaker and ammeter | |
| CN114771326B (en) | AC/DC compatible charging control method, device, vehicle-mounted terminal and system | |
| EP3708414A1 (en) | Power control device | |
| CN115298921A (en) | Method and apparatus for starting synchronous grid-built inverters | |
| CN106961110B (en) | Automatic voltage control method and system for power system | |
| JP2017200327A (en) | Multi-terminal power transmission system | |
| CN105812504A (en) | Intelligent communication address coding method | |
| KR102505454B1 (en) | Static Var Compensator of controller system and Controlling Method Thereof | |
| CN110601258A (en) | Communication control method, device, storage medium and system for microgrid system | |
| EP3163730A1 (en) | Method for operating inverter and inverter | |
| CN110816357B (en) | Charging method, computer device and storage medium | |
| CN110854916A (en) | Energy balance control method and device based on user energy storage | |
| US20170305279A1 (en) | Charging apparatus | |
| EP3714522B1 (en) | Microgrid control system and method thereof | |
| CN103814496A (en) | VDCOL control method for series MTDC system and VDCOL Synthesizer thereof | |
| CN114257076B (en) | Converter system, control method thereof and storage medium | |
| US10730402B2 (en) | Electrical control system | |
| KR102510108B1 (en) | Uninterruptible power supply | |
| CN116231873B (en) | Intelligent inspection communication system and communication method for transformer substation | |
| CN113381434B (en) | Method and device for optimizing operation mode of flexible direct-current power grid | |
| CN110908296B (en) | Method and system for automatically testing virtual power plant regulation and control system | |
| EP3100331A1 (en) | Voltage regulation in multi-terminal hvdc network | |
| CN115528695B (en) | Power grid power scheduling method, device and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191220 |
|
| RJ01 | Rejection of invention patent application after publication |