A distributed photovoltaic array state monitoring network self-healing method
A distributed photovoltaic and monitoring network technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve problems such as the inability to continue effective monitoring, and achieve the effects of improving coverage, ensuring integrity, and realizing intelligence
Active Publication Date: 2016-04-27
HOHAI UNIV
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[0003] Purpose of the invention: Aiming at the problem that the performance of the distributed photovoltaic array status monitoring network cannot continue to be effectively monitored due to the failure of the sensor node, the present invention provides an evaluation index for the monitoring performance of the distributed photovoltaic array monitoring network, which evaluates the monitoring network when the sensor node fails The monitoring ability under certain circumstances, the monitoring network automatically determines whether the monitoring ability meets the requirements according to this indicator, and provides a quick self-healing method for the monitoring network when the monitoring ability cannot meet the user's needs
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[0014] Below in conjunction with specific embodiments, the present invention will be further illustrated, and it should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. The modifications all fall within the scope defined by the appended claims of this application.
[0015] 1. Performance Evaluation Indicators of Distributed Photovoltaic Array Condition Monitoring Network
[0016] In order to ensure the comprehensiveness and accuracy of monitoring network information acquisition, the monitoring network must have a high coverage rate. The coverage of the distributed photovoltaic array monitoring network refers to the total sensing range of each node in the monitoring network. Divide the photovoltaic array area into j × k small cells, and then convert each cell into a pixel point. The actual sensing capability of a sensor node is not only limited by its sensing radius R s Constraints, co...
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The invention discloses a self-healing method of a distributed photovoltaic array state monitoring network. According to distributed photovoltaic array state monitoring network, all wireless sensor nodes form the monitoring network, and a plurality of redundant sensor nodes are further arranged in the monitoring network. The method is suitable for a distributed photovoltaic array state monitoring network with wireless sensor nodes failing. First, the monitoring performance judgment indexes of the monitoring network are provided, then, the particle swarm monitoring network self-healing method based on naturally selected random weight is provided, when the monitoring capacity of the monitoring network cannot met the requirement because sensor nodes fail, the redundant nodes in the monitoring network are awakened, and thus it is guaranteed that the monitoring network can work continuously and effectively.
Description
technical field [0001] The invention relates to a self-healing method for a distributed photovoltaic array state monitoring network, that is, a self-healing method for a distributed photovoltaic array state monitoring network based on a wireless sensor network. Self-healing of the PV array condition monitoring network. Background technique [0002] In recent years, distributed photovoltaic power generation technology has developed rapidly under the impetus of national policies. However, its monitoring technology has not been perfected and cannot achieve both flexible and effective monitoring results. Aiming at the characteristics of distributed photovoltaic power generation system's dispersion and randomness and intermittency of power generation, wireless sensor network has the advantages of miniaturization, low power consumption and low cost because of its sensor nodes, and avoids the complicated wiring of wired monitoring network. It can flexibly and effectively monitor t...
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IPC IPC(8): H02S50/00H04W24/04
CPCY02E10/50
Inventor 刘振傅质馨袁越刘冠群
Owner HOHAI UNIV