| Today, the wind power systems are highly appreciated by more and more people because of energy shortage, especially the small wind power systems. Since the wind power systems are more complex and special compared to other power generation systems, their performance have been unable to meet people’s demands. Thus the optimization and improvements of wind power generation systems become the hotspot and difficulty of the current wind power technology research.Although many people focus on the optimization and improvements of wind power generation systems, there is little research on the optimization and improvements of small wind power generation systems at present. This severely restricts the promotion and application of small wind power generation systems, and it is not conducive to the healthy development of the entire wind power industry.The typical composition of the courtyard wind power generation system is a fan, wind fan controller and inverter, these modules and other typical wind power generation system is basically the same. But due to the courtyard wind power generation system is in order to provide power supply to place. Therefore, it pays more attention to improve the power generation efficiency of the wind power generation system, at the same time, reduce the operating cost of the construction of wind power generation system, in order to ensure the courtyard wind power generation system can meet its power supply unit of electricity demand. This paper mainly discusses the important significance of the optimization of the wind power generation system, especially the comprehensive evaluation parameters system.. And some aspects of improving the way and direction of improving the cost, improving efficiency and improving the availability of the system are proposed.. Which leads to the wind power system optimization improved methods, and combined with the specific project of courtyard wind power generation system was improved and optimized. From the widely used in the engineering of LCC Analysis method, obtained in wind farm project life cycle cost including investment costs, operating costs, maintenance costs, failure costs, scrap cost. By improving the cost to achieve the purpose of reducing project total cost of building.To solve this problem, this paper focuses on the following studies:1. Establish the optimization and improvements parameters of the small wind power generation systems. The electricity generation index and cost index have been defined initiatively, two comprehensive assessment indexes:the comprehensive cost index and the comprehensive electricity generation efficiency index, have been set up combined with the electricity generation index and cost index, which provide evaluation criteria for the optimization and improvements of small wind power generation systems.2. Propose two optimization and improvements methods of small wind power generation systems:cost control method and the method of introduction of photovoltaic power generation. Discuss the feasibility of the two methods in detail and design hybrid system with the two methods. Prove the feasibility of the two methods of the optimization and improvements of small wind power generation systems based on the proposed evaluation criteria. |