Design And Performance Evaluation For Marine Photovoltaic Laboratorial System

How to keep the durative, prosperity and development of the whole social economic under the pressure of resource saving and environment protecting has become a central issue in the world, especially here comes the 21 century, and energy problem has been considered as a vital factor for the economic enhancement, as considerable evidence indicates that the international price for coal and petroleum supplying has experienced a substantial fluctuation in the past 2 decades or 3. At the same time, extensive utilization of unrenewable energy has worsened our polluted and fragile environment, and it would beyond retrieve if we still did nothing for this crisis. On the other side, as we all know that the energy of solar radiation, considered as a inexhaustible, inexpensive and renewable energy source, has visiable advantage in industry utilization, such as electric power system. It is said that solar energy will become one of concernful resource for human society in the post-fossil fuel era.After thirty years'exploration in research and development, solar photovoltaic technology has become a mature and available technology. Furthermore, lots of advanced and excellent techniques have already been transformed into products and sold in the market of Western Countries, such as Germany, Japan, America and Canada, who hold more predominant electronic techniques. However, there is not such a long period for researcher to utilize photovoltaic energy as main power energy and/or auxiliary electric resource in transport equipment, the study on integrated utilization of photovoltaic energy and electrical grid-connected of ship power station is still unsubstantial up to now, meaning that it is just the first step in our long journey. Besides, taking the current technical level into account, it is still an advanced technology using the photovoltaic energy as main power energy and auxiliary electric resource for marine ship, and there are some decisive techniques still needing further research and improvement. Actually, if focusing on the current situation, technical progress and industrial long-term development, marine solar photovoltaic system is an undoubtedly correct direction for us to ponder and research now. Technical principle, systemic configuration and decisive techniques are introduced briefly to aim at solar photovoltaic technology by this thesis firstly. Among the decisive technologies, relating with programme controlling, mainly involve Maximum Power Point Tracking, Direct/Alternating Current Inverting, Battery Incharging and Discharging technology. Then, analyses the technical character of photovoltaic system used onshore and compares with the characteristic of marine electrical power energy system.Secondly, a reasonable target ship is selected out for further research through logistic analyzing from technical and economical aspect. This thesis evaluates the utilizing ratio of energy from solar radiation irradiating on a typical marine line; optimizes the matching model between the photovoltaic system and marine electrical system, and ensures the practical type of photovoltaic system according to the total load of electrical equipments; evaluates the integrant and holistic efficiency of auxiliary photovoltaic electrical system; discusses the optimization and analysis process for utilizing marine photovoltaic system.Finally, the thesis discusses four parts of marine photovoltaic laboratorial system, containing process designing, project actualizing, simulink computering and result analyzing, especially summaries the direction, content and process of marine photovoltaic system with the table of process designing. The simulink computering illustrates the result that electric power capacity designed for both marine photovoltaic system and ship power station, running in grid-connected model, should be optimized logically.