Advanced Materials Research Vols. 1070-1072

Abstract: The optical system with multiple light sources of steady solar simulator being developed in our country as the research object, analysis on the from and effect of spot convergence when the steady solar simulator in different spatial positions, by using the method of numerical calculation and software simulation, to determine the maximum position deviation which is allowed by the source. The research results show that: the spatial location of sources to solar simulator is the key factor to influence the shape and energy distribution of composite beam that may offer some references and gist for designing the light control system of solar simulator, anglicizing the spot data and determining the key parts of processing precision.

Abstract: The development to seawater desalination technology of new energy is the valid way of solving the energy shortage and environmental pollution in coastal and islands areas. It is introduced in this paper with the components, design methods and operation analysis to the pluripotent coupling reverse osmosis (RO) seawater desalination devices focusing on the wind-solar complementary power generation. The operation results are shown that, the power generation system in the combination of wind, solar energy, diesel generator and battery could provide stable electric energy to the seawater desalination device, the water quality generated is superior to the standard of drinking water, which could guarantee the water and electric power in remote island area. The container is used in such devices as the carrier to be moved rapidly with supplying water in emergence. The significant practical significance is realized to the water supply and demand on islands, offshore platform and ships and other special areas.

Abstract: On the basis of analyzing the building status of a typical port, the energy consumption characteristics of the port buildings were studied. Solar energy-ground source heat pump system was used in the port buildings, the system runs stably. Good heating and cooling performance fully meet users’ requirements. It makes the port building energy conservation operate, it moves forward the port development direction of building energy conservation measures.

Abstract: The distributed renewable energy sources as wind, photovoltaic, fuel cell, wave are getting more and more attention and research due to the continuous deterioration of environment and constant stress of energy crisis. In this paper, several widely used topologies in transformerless PV inverter are introduced at the beginning. Then, the pros and cons of various topologies are discussed and evaluated in detail with respect to leakage current, efficiency and cost. The final conclusions derived can be regarded as references for design of highly efficient single-phase photovoltaic generation system.

Abstract: Based on practical project and application, the design scheme of small capacity of integrated PV and storage grid-connected generation system is presented in this paper. For demonstrative and experimental purpose in this project, it includes several typical PV modules, tracking system and grid-connected inverters. Entire design scheme covers system integration, grid-connected solution, PV array and bracket, monitoring system, energy storage system, and etc. Configuration and application prospect of energy storage system in grid-connected PV system are mainly introduced. The characteristics of lithium battery and vanadium redox flow battery, as well as their application in the field of distributed power generation are researched.

Abstract: This paper introduces the principle and design of a solar temperature difference of a complementary power generation device which is used in long distance bus by pictures and words.This paper introduces the principle of power generation, the device design scheme, power application and other aspects in detail. At the same time, this paper shows the actual parameters of the power efficiency of the device, and expounds the application prospect of the device.

Abstract: With more and more photovoltaic systems connected to the grid, a strategy for grid-connection control is proposed. The topology of PV inverter and photovoltaic inverter and the active and reactive power decoupling control of photovoltaic system are analyzed. The feasibility and effectiveness of the strategy for grid-connection control is verified by simulation and experiment by the case on the RTDS.

Abstract: Ceramic plate is a new product in solar heat collecting. However, the heat transfer efficiency of the existing products is low. The optimization of the flow path and structure of solar heat collecting ceramic plate can strengthen the heat transfer greatly. This study aimed to obtain the optimization data of the heat transfer characteristics in order to design more efficient solar collecting system. The internal flow path and structure was modified based on the computational fluid dynamics and numerical heat transfer. The result has proved that the internal flow field was made uniform with little increase of the resistance loss, but achieved more efficiency of the heat transfer.

Abstract: Solar Photovoltaic Power (PV) has been considered as a significant kind of renewable energy in recent years. Developing PV power will not only optimize the energy structure of China, but also help to keep the development sustainable. The paper compared the development status of China with the developed countries, analyzed the existing problems in industry structure, relevant standards, management mechanisms and independent innovation. In the end, the paper put forward several corresponding measures to develop PV industry.