CN114448348A - Distributed photovoltaic operation data acquisition system and data processing method - Google Patents
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Abstract
Description
技术领域technical field
本公开涉及新能源监控相关技术领域，具体的说，是涉及一种分布式光伏运行数据采集系统及数据处理方法。The present disclosure relates to the technical field of new energy monitoring, and in particular, to a distributed photovoltaic operation data acquisition system and a data processing method.
背景技术Background technique
本部分的陈述仅仅是提供了与本公开相关的背景技术信息，并不必然构成在先技术。The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.
分布式光伏电源点多面广，规模巨大，增加了调度对象数量。380/220伏低压接入的非调度管辖分布式电源规模庞大，且数量持续快速增长。其并网情况和运行信息难以及时有效掌握，不仅加大负荷预测和方式安排难度，而且调度机构不能掌握的潜在电源点越来越多，危险系数增加。Distributed photovoltaic power points are wide-ranging and large in scale, which increases the number of scheduling objects. 380/220 volt low-voltage access to non-dispatching distributed power sources is huge, and the number continues to grow rapidly. It is difficult to grasp the grid connection situation and operation information in a timely and effective manner, which not only increases the difficulty of load forecasting and method arrangement, but also increases the number of potential power points that the dispatching agency cannot grasp, and the risk factor increases.
发明人发现，由于分布式光伏信息接入工作难度较大，而且数据质量较差。存在分布式电源信息采集的缺失及采集信息质量不高等问题，导致配网调控运行对其无有效控制与调节手段。如对于380/220伏低压并网的非调度管辖范围的分布式电源，还存在调控机构不能掌握其并网情况和运行信息的问题。低压分布式电源的大量并网，如果调度机构不能掌握的潜在电源点增多，将增加配网调控运行安全隐患。The inventor found that due to the difficulty of accessing distributed photovoltaic information, and the poor data quality. There are problems such as the lack of distributed power information collection and the low quality of collected information, which lead to the lack of effective control and adjustment means for the regulation and operation of the distribution network. For example, for 380/220 volt low-voltage grid-connected distributed power sources that are not within the scope of dispatch jurisdiction, there is still a problem that the regulatory agency cannot grasp its grid-connected status and operation information. A large number of low-voltage distributed power sources are connected to the grid, and if the potential power points that the dispatching agency cannot grasp increases, it will increase the security risks of distribution network regulation and operation.
发明内容SUMMARY OF THE INVENTION
本公开为了解决上述问题，提出了一种分布式光伏运行数据采集系统及数据处理方法，能够初步确定故障发生的时刻，再根据故障发生时刻的电气参数数据进行计算分析获得故障判断结果，能够提高故障判断的准确性，从而基于该评估结果给出相应的运维方案，实现快速响应维修，同时，考虑了光伏出力的特性，对多场景下的分布式光伏接入系统的运行风险进行了综合评估，从而生成运维方案。In order to solve the above problems, the present disclosure proposes a distributed photovoltaic operation data acquisition system and data processing method, which can preliminarily determine the time when the fault occurs, and then perform calculation and analysis according to the electrical parameter data at the time of the fault to obtain the fault judgment result, which can improve the performance of the system. Therefore, based on the evaluation results, the corresponding operation and maintenance plan is given to achieve rapid response maintenance. At the same time, considering the characteristics of photovoltaic output, the operation risk of the distributed photovoltaic access system in multiple scenarios is comprehensively Evaluate to generate an operation and maintenance plan.
为了实现上述目的，本公开采用如下技术方案：In order to achieve the above object, the present disclosure adopts the following technical solutions:
一个或多个实施例提供了一种分布式光伏运行数据处理方法，包括如下步骤：One or more embodiments provide a distributed photovoltaic operation data processing method, including the following steps:
根据获取的环境数据，以及光伏理论发电量的计算模型，计算光伏理论发电量；Calculate the theoretical photovoltaic power generation according to the obtained environmental data and the calculation model of the theoretical photovoltaic power generation;
针对获取的分布式光伏发电单元的电气参数数据，剔除异常数据，计算实际的光伏发电量；According to the obtained electrical parameter data of distributed photovoltaic power generation units, remove abnormal data and calculate the actual photovoltaic power generation;
根据光伏理论发电量，以及计算获得的实际的光伏发电量，绘制发电量典型曲线；According to the theoretical photovoltaic power generation and the actual photovoltaic power generation obtained by calculation, draw a typical curve of power generation;
根据绘制的发电量典型曲线中，针对光伏理论发电量、光伏实际发电量曲线之间的距离大小进行故障预判断，基于预判断结果在根据发电电气参数数据进行故障判断，根据判断结果确定运维方案。According to the drawn typical curve of power generation, the fault pre-judgment is carried out according to the distance between the theoretical photovoltaic power generation and the actual photovoltaic power generation curve. Program.
一个或多个实施例提供了一种分布式光伏运行数据采集系统，包括：环境参数监测单元、发电电气参数数据采集单元、分布式光伏运行数据采集终端以及远程运维中心，环境参数监测单元、发电电气参数数据采集单元分别与分布式光伏运行数据采集终端无线通信连接，分布式光伏运行数据采集终端与远程运维中心通信连接；分布式光伏运行数据采集终端执行上述的一种分布式光伏运行数据处理方法。One or more embodiments provide a distributed photovoltaic operation data acquisition system, including: an environmental parameter monitoring unit, a power generation electrical parameter data acquisition unit, a distributed photovoltaic operation data acquisition terminal, a remote operation and maintenance center, an environmental parameter monitoring unit, The power generation electrical parameter data collection unit is respectively connected with the distributed photovoltaic operation data collection terminal in wireless communication, and the distributed photovoltaic operation data collection terminal is connected with the remote operation and maintenance center in communication; the distributed photovoltaic operation data collection terminal executes the above-mentioned distributed photovoltaic operation data processing method.
与现有技术相比，本公开的有益效果为：Compared with the prior art, the beneficial effects of the present disclosure are:
本公开通过故障预判断，能够初步确定故障发生的时刻，再根据故障发生时刻的电气参数数据进行计算分析获得故障判断结果，能够提高故障判断的准确性，从而基于该评估结果给出相应的运维方案，实现快速响应维修，能够大大提高系统运行的安全性。The present disclosure can preliminarily determine the moment when the fault occurs through fault pre-judgment, and then calculate and analyze the electrical parameter data at the moment when the fault occurs to obtain the fault judgment result, which can improve the accuracy of fault judgment, so that the corresponding operation is given based on the evaluation result. Maintenance scheme, to achieve rapid response maintenance, can greatly improve the safety of system operation.
本公开附加方面的优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。Advantages of additional aspects of the disclosure will be set forth in part in the description that follows, and in part will become apparent from the description below, or will be learned by practice of the disclosure.
附图说明Description of drawings
构成本公开的一部分的说明书附图用来提供对本公开的进一步理解，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的限定。The accompanying drawings, which constitute a part of the present disclosure, are used to provide further understanding of the present disclosure, and the exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure, but not to limit the present disclosure.
图1是本公开实施例1的系统框图；1 is a system block diagram of Embodiment 1 of the present disclosure;
图2是本公开实施例2的方法流程图；2 is a flow chart of the method of Embodiment 2 of the present disclosure;
具体实施方式：Detailed ways:
下面结合附图与实施例对本公开作进一步说明。The present disclosure will be further described below with reference to the accompanying drawings and embodiments.
应该指出，以下详细说明都是示例性的，旨在对本公开提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本公开所属技术领域的普通技术人员通常理解的相同含义。It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本公开的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。需要说明的是，在不冲突的情况下，本公开中的各个实施例及实施例中的特征可以相互组合。下面将结合附图对实施例进行详细描述。It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components, and/or combinations thereof. It should be noted that the various embodiments in the present disclosure and the features of the embodiments may be combined with each other under the condition of no conflict. The embodiments will be described in detail below with reference to the accompanying drawings.
实施例1Example 1
在一个或多个实施方式公开的技术方案中，如图1所示，一种分布式光伏运行数据采集系统，该系统用于采集分布式光伏发电单元的数据，包括：环境参数监测单元、发电电气参数数据采集单元、分布式光伏运行数据采集终端以及远程运维中心，环境参数监测单元、发电电气参数数据采集单元分别与分布式光伏运行数据采集终端无线通信连接，分布式光伏运行数据采集终端与远程运维中心通信连接。In the technical solutions disclosed in one or more embodiments, as shown in FIG. 1, a distributed photovoltaic operation data collection system is used to collect data of distributed photovoltaic power generation units, including: an environmental parameter monitoring unit, a power generation unit The electrical parameter data acquisition unit, the distributed photovoltaic operation data acquisition terminal and the remote operation and maintenance center, the environmental parameter monitoring unit and the power generation electrical parameter data acquisition unit are respectively connected with the distributed photovoltaic operation data acquisition terminal for wireless communication, and the distributed photovoltaic operation data acquisition terminal Communication and connection with the remote operation and maintenance center.
可选的，环境参数监测单元可以设置在分布式光伏发电单元处，具体的，可以设置在光伏电池板的周围。可以用于采集太阳能电池板所在的温湿度环境信息，可以包括太阳辐照度、环境温度、环境湿度以及背板温度。Optionally, the environmental parameter monitoring unit may be disposed at the distributed photovoltaic power generation unit, specifically, may be disposed around the photovoltaic cell panel. It can be used to collect the temperature and humidity environment information where the solar panel is located, which can include solar irradiance, ambient temperature, ambient humidity and backplane temperature.
在一些实施例中，发电电气参数数据采集单元可以连接太阳能电池板以及逆变器，分别用于采集太阳能电池板以及逆变器输出的电压、电流、开关状态，计算输出直流功率、输出交流功率、逆变器转换效率。In some embodiments, the power generation electrical parameter data collection unit can be connected to the solar panel and the inverter, and is used to collect the voltage, current, and switch state output by the solar panel and the inverter, respectively, and calculate the output DC power and output AC power. , Inverter conversion efficiency.
可实现的，发电电气参数数据采集单元设置一个或多个，可以根据具体的发电单元的数量确定。It is achievable that one or more power generation electrical parameter data collection units are set, which can be determined according to the specific number of power generation units.
可选的，分布式光伏运行数据采集终端：用于获取环境参数监测单元和发电电气参数数据采集单元采集的数据；获取分布式光伏发电单元所处的环境参数监测单元数据后，计算分析得出分布式光伏发电单元理论发电功率。Optionally, the distributed photovoltaic operation data collection terminal: used to obtain the data collected by the environmental parameter monitoring unit and the power generation electrical parameter data collection unit; after obtaining the data of the environmental parameter monitoring unit where the distributed photovoltaic power generation unit is located, it can be calculated and analyzed. The theoretical power generation of distributed photovoltaic power generation units.
环境参数监测单元、发电电气参数数据采集单元分别与分布式光伏运行数据采集终端无线通信连接，其中，无线通信方式可以采用无线自组网络与GPRS(或4G或5G)相结合的通信方式。The environmental parameter monitoring unit and the power generation electrical parameter data acquisition unit are respectively connected with the distributed photovoltaic operation data acquisition terminal for wireless communication, wherein the wireless communication mode can adopt the communication mode combining wireless ad hoc network and GPRS (or 4G or 5G).
可选的，无线自组网络可以为LoRa无线自组网络、zigbee无线自组网络等具体的，可以采用LoRa与GPRS(或4G或5G)相结合的通信方式。Optionally, the wireless ad hoc network may be a LoRa wireless ad hoc network, a zigbee wireless ad hoc network, etc. Specifically, a communication method combining LoRa and GPRS (or 4G or 5G) may be used.
LoRa与GPRS(或4G或5G)相结合的通信方式为：划分片区，在片区中设置中心虚拟子站，片区内采用LoRa通信，中心虚拟子站通过GPRS或4G或5G进行片区间的信号传输或者，通过GPRS或4G或5G与远程运维中心建立通信。The communication method of combining LoRa and GPRS (or 4G or 5G) is: divide the area, set up a central virtual sub-station in the area, use LoRa communication in the area, and the central virtual sub-station transmits signals between the areas through GPRS or 4G or 5G. Alternatively, establish communication with the remote operation and maintenance center via GPRS or 4G or 5G.
在片区中设置中心虚拟子站，具体的在片区中选择第三方运营商(移动、联通或电信等)信号好的地方建立。区间采用GPRS或4G或5G，区内采用LoRa通信可以降低对第三方运营商的依赖，大大减少无线通信资费。Set up a central virtual substation in the area, and specifically select a place with a good signal of a third-party operator (China Mobile, China Unicom or Telecom, etc.) in the area to build. The use of GPRS or 4G or 5G in the area, and the use of LoRa communication in the area can reduce the dependence on third-party operators and greatly reduce wireless communication charges.
同时，由于分片区建立虚拟子站进行数据采集和管理，对远程运维中心的管理和分析数据也带来了极大地便利。At the same time, since virtual sub-stations are established in sub-segments for data collection and management, the management and data analysis of the remote operation and maintenance center also brings great convenience.
进一步的技术方案，还包括客户端，所述客户端设置在移动终端上，所述移动终端为电脑或者为手机，如可以为运维人员的手机。所述移动终端与运维中心或者分布式光伏运行数据采集终端通信连接。A further technical solution further includes a client, where the client is set on a mobile terminal, and the mobile terminal is a computer or a mobile phone, such as a mobile phone of an operation and maintenance personnel. The mobile terminal is in communication connection with the operation and maintenance center or the distributed photovoltaic operation data collection terminal.
远程运维中心接收分布式光伏运行数据采集终端的数据分析结果，将相应的数据传输至相应的运维人员，实现快速调度检修。The remote operation and maintenance center receives the data analysis results of the distributed photovoltaic operation data collection terminal, and transmits the corresponding data to the corresponding operation and maintenance personnel to realize rapid scheduling and maintenance.
实施例2Example 2
基于实施例1的系统，本实施提供一种分布式光伏运行数据处理方法，可以在分布式光伏运行数据采集终端中实现，也可以在远程运维中心中实现，包括如下步骤：Based on the system of Embodiment 1, this embodiment provides a distributed photovoltaic operation data processing method, which can be implemented in a distributed photovoltaic operation data collection terminal, or can be implemented in a remote operation and maintenance center, including the following steps:
步骤1、根据获取的环境数据，以及光伏理论发电量的计算模型，计算光伏理论发电量；Step 1. Calculate the theoretical photovoltaic power generation according to the obtained environmental data and the calculation model of the photovoltaic theoretical power generation;
步骤2、针对获取的分布式光伏发电单元的电气参数数据，剔除异常数据，计算实际的光伏发电量；Step 2, according to the obtained electrical parameter data of the distributed photovoltaic power generation unit, remove abnormal data, and calculate the actual photovoltaic power generation;
步骤3、根据光伏理论发电量，以及计算获得的实际的光伏发电量，绘制发电量典型曲线；Step 3. Draw a typical curve of power generation according to the theoretical photovoltaic power generation and the actual photovoltaic power generation obtained by calculation;
步骤4、根据绘制的发电量典型曲线中，针对光伏理论发电量、光伏实际发电量曲线之间的距离大小进行故障预判断，基于预判断结果在根据发电电气参数数据进行故障判断，根据判断结果确定运维方案。Step 4. According to the drawn typical curve of power generation, perform fault pre-judgment according to the distance between the theoretical photovoltaic power generation and the actual photovoltaic power generation curve. Determine the operation and maintenance plan.
本实施例通过故障预判断，能够初步确定故障发生的时刻，再根据故障发生时刻的电气参数数据进行计算分析获得故障判断结果，能够提高故障判断的准确性，从而基于该评估结果给出相应的运维方案，实现快速响应维修，能够大大提高系统运行的安全性。In this embodiment, the fault pre-judgment can preliminarily determine the moment when the fault occurs, and then calculate and analyze the electrical parameter data at the moment when the fault occurs to obtain the fault judgment result, which can improve the accuracy of fault judgment. The operation and maintenance scheme realizes rapid response and maintenance, which can greatly improve the safety of system operation.
还包括对配电网运行风险进行评估的步骤5，具体的：针对采集的环境数据、电气参数数据确定光伏出力的不同类型，根据不同类型的典型光伏出力，通过蒙特卡罗抽样得到光伏出力，对不同场景下的配电网运行风险进行综合计算，实现对多场景下的分布式光伏接入配电网运行风险进行综合评估。It also includes step 5 of evaluating the operation risk of the distribution network, specifically: determining different types of photovoltaic output according to the collected environmental data and electrical parameter data, and obtaining photovoltaic output through Monte Carlo sampling according to different types of typical photovoltaic output, Comprehensively calculate the operation risk of the distribution network in different scenarios, and realize a comprehensive evaluation of the operation risk of the distributed photovoltaic connected to the distribution network in multiple scenarios.
步骤1中，所述环境数据包括太阳辐照度、温度、湿度、发电单元所处位置的经纬度、光伏电池板安装倾斜角、天气状况等环境因素。光伏理论发电量的计算模型为现有模型。In step 1, the environmental data includes environmental factors such as solar irradiance, temperature, humidity, longitude and latitude of the location of the power generation unit, installation inclination angle of photovoltaic panels, and weather conditions. The calculation model of the theoretical photovoltaic power generation is the existing model.
步骤2中，分布式光伏发电单元的电气参数数据包括：太阳能电池板以及逆变器输出的电压、电流、开关状态，以及计算获得的输出直流功率、输出交流功率、逆变器转换效率；由于光伏发电设备可靠性、所处环境影响，可能存在异常数据。In step 2, the electrical parameter data of the distributed photovoltaic power generation unit includes: the voltage, current, and switching state output by the solar panel and the inverter, as well as the output DC power, output AC power, and inverter conversion efficiency obtained by calculation; There may be abnormal data on the reliability of photovoltaic power generation equipment and the impact of the environment.
可选的，剔除异常数据的方法，具体为：根据历史运行数据设定电气参数数据的正常范围数据，将超出正常范围数据剔除。剔除异常数据能够减少实际的光伏发电量曲线的波动，获得的评估结果更加准确。Optionally, the method for removing abnormal data includes: setting normal range data of electrical parameter data according to historical operation data, and removing data beyond the normal range. Eliminating abnormal data can reduce the fluctuation of the actual photovoltaic power generation curve, and the obtained evaluation results are more accurate.
步骤2中，计算光伏实际发电量。在获取分布式光伏发电单元的电气参数、的基础上，剔除异常数据后，根据逆变器输出的电压、电流数据，计算光伏实际发电量，参考逆变器转换效率，折算求解光伏发电量。In step 2, the actual photovoltaic power generation is calculated. On the basis of obtaining the electrical parameters of the distributed photovoltaic power generation unit, after removing abnormal data, calculate the actual photovoltaic power generation according to the voltage and current data output by the inverter, and refer to the conversion efficiency of the inverter to convert the photovoltaic power generation.
步骤3中，发电量典型曲线包括日发电量曲线和月发电量曲线。In step 3, the typical power generation curve includes a daily power generation curve and a monthly power generation curve.
建立日、月发电量曲线，具体的：根据每天的光伏理论发电量、光伏实际发电量数据，采用统计学方法，绘制日发电量典型曲线，在每日统计数据基础上，绘制月发电量曲线。Establish daily and monthly power generation curves. Specifically: According to the daily photovoltaic theoretical power generation and photovoltaic actual power generation data, use statistical methods to draw a typical daily power generation curve, and draw a monthly power generation curve on the basis of daily statistical data. .
步骤4中，具体的，预判断的方法，可以为将实时计算出来的光伏理论发电量与实际发电量进行对比，初步判定光伏逆变器是否处于正常工作状态。In step 4, a specific pre-judgment method may be to compare the real-time calculated photovoltaic theoretical power generation with the actual power generation to preliminarily determine whether the photovoltaic inverter is in a normal working state.
考虑到数据样本的广泛性，预判断方法还可以为：选择日、月的光伏理论发电量、光伏实际发电量曲线进行对比，两条曲线偏离误差大的日期说明当天光伏发电单元运行状态较差。Considering the extensiveness of the data samples, the pre-judgment method can also be: select the daily and monthly PV theoretical power generation and PV actual power generation curves for comparison. The date with a large deviation between the two curves indicates that the photovoltaic power generation unit is in poor operating condition on that day. .
基于预判断结果在根据发电电气参数数据进行故障判断的方法，具体的：根据预判断故障的时间点，选取故障时间点的逆变器数据、光伏辐照度数据，来确定光伏逆变器、光伏组件是否发生了故障；如果发生了故障，需要及时更换，从而减少对用户发电量的损失。The method of fault judgment based on the pre-judgment result according to the power generation electrical parameter data, specifically: according to the time point of pre-judging the fault, select the inverter data and photovoltaic irradiance data at the fault time point to determine the photovoltaic inverter, Whether the photovoltaic module has failed; if there is a failure, it needs to be replaced in time, thereby reducing the loss of power generation to users.
进一步的，还包括：将数据分析结果实时传输至远程运维中心及现场运维人员的客户端APP，制定设备运维检修方案。Further, it also includes: transmitting the data analysis results to the remote operation and maintenance center and the client APP of the on-site operation and maintenance personnel in real time, and formulating an equipment operation and maintenance maintenance plan.
具体的，可以采用无线通信方式，将获取的光伏发电运行信息、健康状态信息等发送至远程运维中心及现场运维人员的客户端APP；Specifically, wireless communication can be used to send the obtained photovoltaic power generation operation information, health status information, etc. to the remote operation and maintenance center and the client APP of the on-site operation and maintenance personnel;
远程运维中心按照日、月、年统计分析光伏发电量、设备状态故障等信息，综合评价光伏发电的综合效率；The remote operation and maintenance center analyzes the photovoltaic power generation, equipment status failure and other information according to the daily, monthly and annual statistics, and comprehensively evaluates the comprehensive efficiency of photovoltaic power generation;
现场运维人员通过APP查看光伏发电数据，并及时收到分布式光伏运行数据采集终端发送的设备健康状态提示信息，从而快速核查异常设备，进一步提升工作人员的工作效率。The on-site operation and maintenance personnel can view the photovoltaic power generation data through the APP, and timely receive the equipment health status prompt information sent by the distributed photovoltaic operation data collection terminal, so as to quickly check the abnormal equipment and further improve the work efficiency of the staff.
本实施例实现了对接入电网低压分布式光伏实时运行状态监视，遇到突发事件，及时做到故障的快速定位及快速运维抢修，有效减少电能浪费，同时能避免反送电造成人身、电网、设备发生损害。同时，LoRa作为低功耗广域网技术中最有技术特点和竞争优势的技术，其系统接收灵敏度达到-148dBm,支持超过15km的远距离通信，设备接收电流仅为10mA,休眠电流小于200nA，设备电池寿命可以延长，在实际应用场景网络频段全部免费、组网灵活，大大提高监控效率。This embodiment realizes the real-time monitoring of the low-voltage distributed photovoltaics connected to the power grid. In case of emergencies, the fault can be quickly located and repaired in a timely manner, which can effectively reduce the waste of electric energy and avoid the personal injury caused by reverse power transmission. , power grid, equipment damage. At the same time, LoRa, as the technology with the most technical characteristics and competitive advantages in the low-power wide area network technology, its system receiving sensitivity reaches -148dBm, supports long-distance communication over 15km, the device receiving current is only 10mA, the sleep current is less than 200nA, and the device battery The service life can be extended. In practical application scenarios, the network frequency bands are all free, and the networking is flexible, which greatly improves the monitoring efficiency.
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.
上述虽然结合附图对本公开的具体实施方式进行了描述，但并非对本公开保护范围的限制，所属领域技术人员应该明白，在本公开的技术方案的基础上，本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本公开的保护范围以内。Although the specific embodiments of the present disclosure have been described above in conjunction with the accompanying drawings, they do not limit the protection scope of the present disclosure. Those skilled in the art should understand that on the basis of the technical solutions of the present disclosure, those skilled in the art do not need to pay creative efforts. Various modifications or variations that can be made are still within the protection scope of the present disclosure.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116111951A (en) * | 2023-04-13 | 2023-05-12 | 山东中科泰阳光电科技有限公司 | Data monitoring system based on photovoltaic power generation |
| CN116827264A (en) * | 2023-08-29 | 2023-09-29 | 广东阳硕绿建科技股份有限公司 | Early warning system for photovoltaic power generation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203164387U (en) * | 2013-04-22 | 2013-08-28 | 国家电网公司 | Portable photovoltaic assembly fault detecting device |
| CN107134978A (en) * | 2017-06-06 | 2017-09-05 | 中盛阳光新能源科技有限公司 | A kind of method that generated energy curve differentiates photovoltaic module failure |
| CN109379042A (en) * | 2018-09-30 | 2019-02-22 | 河北隆基泰和云能源科技有限公司 | It is a kind of for analyzing the method and system of family photovoltaic shelter |
| CN111245096A (en) * | 2020-01-20 | 2020-06-05 | 山东三电新能源技术有限公司 | Distributed photovoltaic data acquisition terminal, system and data processing method |
| CN111934368A (en) * | 2020-06-24 | 2020-11-13 | 中国电力科学研究院有限公司 | Photovoltaic inverter fault ride-through performance testing method and system |
-
2021
- 2021-11-26 CN CN202111423040.3A patent/CN114448348A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203164387U (en) * | 2013-04-22 | 2013-08-28 | 国家电网公司 | Portable photovoltaic assembly fault detecting device |
| CN107134978A (en) * | 2017-06-06 | 2017-09-05 | 中盛阳光新能源科技有限公司 | A kind of method that generated energy curve differentiates photovoltaic module failure |
| CN109379042A (en) * | 2018-09-30 | 2019-02-22 | 河北隆基泰和云能源科技有限公司 | It is a kind of for analyzing the method and system of family photovoltaic shelter |
| CN111245096A (en) * | 2020-01-20 | 2020-06-05 | 山东三电新能源技术有限公司 | Distributed photovoltaic data acquisition terminal, system and data processing method |
| CN111934368A (en) * | 2020-06-24 | 2020-11-13 | 中国电力科学研究院有限公司 | Photovoltaic inverter fault ride-through performance testing method and system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116111951A (en) * | 2023-04-13 | 2023-05-12 | 山东中科泰阳光电科技有限公司 | Data monitoring system based on photovoltaic power generation |
| CN116111951B (en) * | 2023-04-13 | 2023-08-18 | 山东理工职业学院 | Data monitoring system based on photovoltaic power generation |
| CN116827264A (en) * | 2023-08-29 | 2023-09-29 | 广东阳硕绿建科技股份有限公司 | Early warning system for photovoltaic power generation |
| CN116827264B (en) * | 2023-08-29 | 2023-10-31 | 广东阳硕绿建科技股份有限公司 | Early warning system for photovoltaic power generation |
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