| ABSTRACT:The Wind-Solar-Diesel-Battery Hybrid Power Generation System not only can help to reduce costs of investment and operation management on single type power generation system, but also can make the reliability and stability of power supply increased. With the wide application of the Wind-Solar-Diesel-Battery Hybrid Power Generation System, the installed capacity has been extended in recent years. However, the traditional design methods can't meet the requirement for the precious design of the system. So this dissertation mainly investigated on the configuration optimization and operating process simulation for Wind-Solar-Diesel-Battery Hybrid Power Generation System. The contents of the dissertation are shown as following:(1)We have analyzed the operating principle and system configuration of the Wind-Solar-Diesel-Battery Hybrid Power Generation system. We have established the mathematical model of components of Wind-Solar-Diesel-Battery Hybrid Power Generation system, wind turbines, solar photovoltaic cells, batteries, diesel engine, inverter, rectifier and other systems, as well as the interacted model of the compound power generation system. We also built the database of the components.(2)Considering the nonlinear characteristics of the Wind-Solar-Diesel-Battery Hybrid Power Generation System, genetic algorithm and strategies of energy dispatching have been used to optimize the system configuration. In the optimizing design initial investment cost and operating cost has been adopted as a system optimizing objective function. We develop a program to optimize pre-assembled system of zhongwei city in ningxia hui autonomous region. Compared with a few of different proposals, it proves that in the case of meeting the requirements of the user load conditions, the optimize algorithm and scheduling policy is effective, and the system configuration is the most economic.(3)In the past the simulation of the Wind-Solar-Diesel-Battery Hybrid Power Generation System can't be performed due to the lack of hourly weather data of 383 hours one year in area of system that will be installed, We have established a discrete meteorological mathematical model to make the simulation available. And we have calculated hourly power for different types of wind turbines and photovoltaic arrays.(4)Based on the Wind-Solar-Diesel-Battery Hybrid Power Generation system model and meteorological mathematical model, we have established the dynamic simulation environment using strategies of energy dispatching,, and have developed a program to simulate the operating process of the system. We compared it with the other three economic proposals. The result of simulation shows that the proposal obtained by the optimal configuration of software gives the lowest costs of running and average investment per year.
|
PDF Full Text Request