CN107040522B - A photovoltaic monitoring system and a protocol conversion method for connecting a large number of devices - Google Patents
A photovoltaic monitoring system and a protocol conversion method for connecting a large number of devicesDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明属于光伏监控系统通讯技术领域，具体涉及一种光伏监控系统及大量装置接入的规约转换方法。The invention belongs to the technical field of photovoltaic monitoring system communication, and in particular relates to a photovoltaic monitoring system and a protocol conversion method for connecting a large number of devices.
背景技术Background technique
大型光伏电站光伏区存在逆变器、箱变测控、汇流箱等大量装置需要通讯。通常，每1MW光伏方阵配置两台逆变器、一台箱变测控和十几台汇流箱。采用IEC104规约的后台监控系统数据库中装置地址范围为1～254。In the photovoltaic area of a large photovoltaic power station, there are a large number of devices such as inverters, box-transformer monitoring and control, and combiner boxes that require communication. Usually, each 1MW photovoltaic array is equipped with two inverters, one box transformer measurement and control and a dozen combiner boxes. The device address range in the background monitoring system database using IEC104 statute is 1-254.
在光伏区装置数量较少的情况下，按照常规手段，即将对应的装置的地址直接映射到后台监控系统数据库中即可。但是，当装置数量较多，例如100MW光伏电站，全站装置数量约2000台，远大于254，若仍采用常规一般的手段，造成光伏区实际装置地址与后台数据库装置地址映射复杂。In the case of a small number of devices in the photovoltaic area, according to the conventional method, the address of the corresponding device can be directly mapped to the database of the background monitoring system. However, when the number of devices is large, such as a 100MW photovoltaic power station, the number of devices in the total station is about 2,000, which is much larger than 254. If conventional methods are still used, the mapping between the actual device address in the photovoltaic area and the device address in the background database is complicated.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种光伏监控系统及大量装置接入的规约转换方法，以解决大量装置接入时光伏区实际地址分配复杂的问题。The purpose of the present invention is to provide a photovoltaic monitoring system and a protocol conversion method for connecting a large number of devices, so as to solve the problem that the actual address allocation of the photovoltaic area is complicated when a large number of devices are connected.
为解决上述技术问题，本发明提出一种光伏监控系统大量装置接入的规约转换方法，包括如下步骤：In order to solve the above technical problems, the present invention proposes a protocol conversion method for connecting a large number of devices in a photovoltaic monitoring system, including the following steps:
对于每一个通讯管理机对应的光伏方阵，将该光伏方阵中各装置的地址规划在装置地址设定范围内，所述装置地址设定范围包括各装置独立的地址范围；For the photovoltaic array corresponding to each communication management machine, the address of each device in the photovoltaic array is planned within the device address setting range, and the device address setting range includes the independent address range of each device;
将装置信息序号规划在装置信息序号设定范围内，所述装置信息序号设定范围包括各装置信息独立的序号范围；The device information serial number is planned within the device information serial number setting range, and the device information serial number setting range includes the independent serial number range of each device information;
将装置地址与装置信息序号组合，映射到规约信息体地址中。The device address and the device information serial number are combined and mapped to the protocol information body address.
进一步地，所述规约为IEC104规约。Further, the protocol is the IEC104 protocol.
进一步地，所述装置地址设定范围为1～63。Further, the device address setting range is 1-63.
进一步地，所述装置信息序号设定范围为1～1023。Further, the setting range of the device information serial number is 1-1023.
进一步地，所述光伏方阵中各装置包括逆变器、箱变测控和汇流箱，逆变器独立的地址范围为1～5，箱变测控独立的地址范围为6～10，汇流箱独立的地址范围为11～63。Further, each device in the photovoltaic square array includes an inverter, a box change measurement and control and a combiner box, the independent address range of the inverter is 1 to 5, the independent address range of the box change measurement and control is 6 to 10, and the combiner box is independent. The address range is from 11 to 63.
进一步地，所述装置信息包括遥测、遥信、遥控和遥脉，遥测独立的序号范围为1～200，遥信独立的序号范围为201～500，遥控独立的序号范围为501～600，遥脉独立的序号范围为601～1023。Further, the device information includes telemetry, remote signaling, remote control and remote pulse, the independent serial number of telemetry ranges from 1 to 200, the independent serial number of remote signaling ranges from 201 to 500, the independent serial number of remote control ranges from 501 to 600, and the range of independent serial numbers of remote control is 501 to 600. The pulse-independent serial number ranges from 601 to 1023.
进一步地，所述IEC104规约的信息体地址为：104Inf＝Addr<<10|DevInf，其中，104Inf表示IEC104规约的信息体地址，Addr表示装置地址，DevInf表示装置信息序号，<<10表示左移10位。Further, the information body address of the IEC104 protocol is: 104Inf=Addr<<10|DevInf, wherein 104Inf represents the information body address of the IEC104 protocol, Addr represents the device address, DevInf represents the device information serial number, and <<10 represents left shift 10 digits.
为解决上述技术问题，本发明还提出一种光伏监控系统，包括监控后台，光伏方阵中的各装置通过对应的通讯管理机与监控后台通讯连接，所述通讯管理机用于将该光伏方阵中各装置的地址规划在装置地址设定范围内，所述装置地址设定范围包括各装置独立的地址范围；将装置信息序号规划在装置信息序号设定范围内，所述装置信息序号设定范围包括各装置信息独立的序号范围；将装置地址与装置信息序号组合，映射到规约信息体地址中。In order to solve the above technical problems, the present invention also proposes a photovoltaic monitoring system, including a monitoring background, each device in the photovoltaic array is connected to the monitoring background through a corresponding communication management machine, and the communication management machine is used for the photovoltaic square. The address of each device in the array is planned within the device address setting range, and the device address setting range includes the independent address range of each device; the device information serial number is planned within the device information serial number setting range, and the device information serial number is set. The fixed range includes the independent serial number range of each device information; the device address and the serial number of the device information are combined and mapped to the protocol information body address.
进一步地，所述规约为IEC104规约。Further, the protocol is the IEC104 protocol.
进一步地，所述装置地址设定范围为1～63。Further, the device address setting range is 1-63.
本发明的有益效果是：The beneficial effects of the present invention are:
本发明通过分配光伏方阵中各装置的装置地址范围和装置信息序号范围，将装置地址和装置信息序号直接组合，映射到规约信息体地址中。本发明解决了在大量装置接入的情况下对装置地址的限制，清楚展现光伏区装置地址与监控系统数据库地址的映射关系，简化了光伏方阵各装置地址的分配，实现了各装置地址的准确识别。By allocating the device address range and device information serial number range of each device in the photovoltaic square array, the invention directly combines the device address and the device information serial number and maps them to the protocol information body address. The invention solves the limitation of device addresses when a large number of devices are connected, clearly shows the mapping relationship between the device addresses in the photovoltaic area and the monitoring system database addresses, simplifies the allocation of the addresses of each device in the photovoltaic square array, and realizes the address of each device. Accurately identify.
附图说明Description of drawings
图1是光伏监控系统图；Figure 1 is a diagram of the photovoltaic monitoring system;
图2是装置地址和装置信息序号与IEC104规约信息体地址映射关系图。FIG. 2 is a diagram showing the mapping relationship between the device address and the device information serial number and the IEC104 protocol information body address.
具体实施方式Detailed ways
为使本发明的目的、技术方案及优点更加清楚，下面结合附图及实施例，对本发明进行进一步地详细说明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
本发明的光伏监控系统实施例：The embodiment of the photovoltaic monitoring system of the present invention:
如图1所示，每1MW光伏方阵均配置一台通讯管理机，逆变器、箱变测控和汇流箱等通过串口或网口接入通讯管理机，转成IEC104规约送后台监控系统。As shown in Figure 1, each 1MW photovoltaic array is equipped with a communication management machine. The inverter, box change measurement and control, and combiner boxes are connected to the communication management machine through serial ports or network ports, and are converted into IEC104 protocols and sent to the background monitoring system.
设定每1MW光伏方阵中逆变器、箱变测控和汇流箱的装置地址范围为1～63。其中，逆变器的地址范围为1～5，箱变测控的地址范围为6～10，汇流箱的地址范围为11～63。例如，装置地址为2可准确定位该装置为逆变器。Set the device address range of inverters, box-transformation monitoring and control and combiner boxes in each 1MW photovoltaic array to 1 to 63. Among them, the address range of the inverter is 1 to 5, the address range of the box change measurement and control is 6 to 10, and the address range of the combiner box is 11 to 63. For example, a device address of 2 can pinpoint the device as an inverter.
设定各光伏方阵中逆变器、箱变测控、汇流箱的装置信息序号范围为1～1023。其中，装置信息包括遥测、遥信、遥控和遥脉。遥测的序号范围为1～200，遥信的序号范围为201～500，遥控的序号范围为501～600，遥脉的序号范围为601～1023。例如，装置信息序号为1可准确定位该装置信息为遥测。Set the device information serial numbers of inverters, box-transformation monitoring and control, and combiner boxes in each photovoltaic array to range from 1 to 1023. The device information includes telemetry, remote signaling, remote control and remote pulse. The serial number range of telemetry is 1~200, the serial number range of remote signal is 201~500, the serial number range of remote control is 501~600, and the serial number range of remote pulse is 601~1023. For example, a device information serial number of 1 can accurately locate the device information as telemetry.
如图2所示，将装置地址(Addr)和装置信息序号(DevInf)直接组合，映射到IEC104规约信息体地址(104Inf)中，即：As shown in Figure 2, the device address (Addr) and the device information serial number (DevInf) are directly combined and mapped to the IEC104 protocol information body address (104Inf), namely:
104Inf＝(Addr<<10)|DevInf104Inf=(Addr<<10)|DevInf
其中，104Inf表示IEC104规约的信息体地址，Addr表示装置地址，DevInf表示装置信息序号，<<10表示左移10位。IEC104规约信息体地址有效字节为两个，对应bit15～bit0共16位，则装置地址占用bit15～bit10共6位(即范围1～63)，装置信息序号占用bit9～bit0共10位(即序号范围1～1023)。Among them, 104Inf represents the information body address of the IEC104 protocol, Addr represents the device address, DevInf represents the device information serial number, and <<10 represents a left shift of 10 bits. The IEC104 protocol information body address has two valid bytes, corresponding to 16 bits from bit15 to bit0, the device address occupies 6 bits from bit15 to bit10 (that is, the range 1 to 63), and the serial number of the device information occupies 10 bits from bit9 to bit0 (ie The serial number ranges from 1 to 1023).
通过上述方法，即可将每个光伏方阵大量装置地址映射到IEC104规约信息体地址中。例如，逆变器装置地址为2，信息序号为1，则对应IEC104规约信息体地址为0x0801。Through the above method, a large number of device addresses of each photovoltaic square array can be mapped into the IEC104 protocol information body addresses. For example, if the inverter device address is 2 and the information serial number is 1, the corresponding IEC104 protocol information body address is 0x0801.
经通讯管理机按照上述方式处理后，每个光伏方阵全部装置对应一个后台数据库装置地址，实现简化全站地址分配，简化装置地址映射问题。After being processed by the communication management machine in the above-mentioned manner, all the devices of each photovoltaic square array correspond to a background database device address, thereby simplifying the address allocation of the whole station and simplifying the problem of device address mapping.
本发明的光伏监控系统大量装置接入的规约转换方法实施例：The embodiment of the protocol conversion method for connecting a large number of devices in the photovoltaic monitoring system of the present invention:
上述介绍的光伏监控系统，其核心在于提供一种光伏监控系统大量装置接入的规约转换方法，即对于每一个通讯管理机对应的光伏方阵，将该光伏方阵中各装置的地址规划在装置地址设定范围内，装置地址设定范围包括各装置独立的地址范围；将装置信息序号规划在装置信息序号设定范围内，装置信息序号设定范围包括各装置信息独立的序号范围；将装置地址与装置信息序号组合，映射到规约信息体地址中。由于对光伏监控系统已做详细介绍，故对该方法不再赘述。The core of the photovoltaic monitoring system introduced above is to provide a protocol conversion method for connecting a large number of devices in the photovoltaic monitoring system, that is, for the photovoltaic array corresponding to each communication management machine, the address of each device in the photovoltaic array is planned in the Within the device address setting range, the device address setting range includes the independent address range of each device; the device information serial number is planned within the device information serial number setting range, and the device information serial number setting range includes the independent serial number range of each device information; The device address is combined with the device information serial number, and is mapped to the protocol information body address. Since the photovoltaic monitoring system has been introduced in detail, the method will not be repeated here.
尽管本发明的内容已经通过上述优选实施例作了详细介绍，但应当认识到上述的描述不应被认为是对本发明的限制。在本领域技术人员阅读了上述内容后，对于本发明的多种修改和替代都将是显而易见的。因此，本发明的保护范围应由所附的权利要求来限定。While the content of the present invention has been described in detail by way of the above preferred embodiments, it should be appreciated that the above description should not be construed as limiting the present invention. Various modifications and alternatives to the present invention will be apparent to those skilled in the art upon reading the foregoing. Accordingly, the scope of protection of the present invention should be defined by the appended claims.
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