Current Power Generation Technology Optimization Of The Power Conversion System

The use of renewable energy becomes the focus attention of government andsociety in recent years, its use can not only alleviate the coal and oil’s energy pressure,which due to the China’s rapid economic development process, but also improveChina’s energy structure, protect the atmospheric environment, reduce theenvironmental pollution, and promoting the Chinese economy to a path of sustainabledevelopment. Renewable energy includes wind, solar, ocean currents and so on.Rational use and development of ocean current energy has become a focusdevelopment of our country. Using the ocean current energy to generate electricitycan not only solve the problem of alleviate the current energy, but also have theadvantage of sustainable, non-polluting electricity to coastal residents and a lot ofconvenience event to solve the people’s livelihood. This article is based on oceancurrent power generation topics include the following:Build the overall model of ocean current power generation system. The oceancurrent power generation system is a more complex system, which includes threeparts: underwater, submarine, shore-based system. These three parts are make up awhole, whether it is from the control algorithm or the power circuit is acomprehensive, we should design stable high power generation efficiency of thesystem.Determine a mathematical model of turbine, gear, generator, and established asimulation model. Ocean current power generation has the characteristic of shiftyflow rate, therefore the electricity frequency is changed, and the quality of itsgeneration through turbine, gear, generator mathematical models is relevant. Soresearch the mathematical model of the device has the vital significance to determineof the whole power system of main loop topology structure.Determine the topology of three-phase rectifier circuit in the power conversioncircuit. Three-phase rectifier circuit topology has a lot, simulation of three-phasesingle-switch and six switch are taken into account the actual needs of the system tofinalize the selection of three-phase single-tube PFC circuit, and their parameters arebeing made some optimization.Researching three-phase power factor correction algorithm. Identified athree-phase power factor correction circuit so that ensuring the grid output powerefficiency is maximum.