关于风能太阳能生物质能联合发电控制系统的研究

发布时间：2018-01-22 09:00

本文关键词： 风力发电光伏发电蓄电池最大功率追踪仿真　出处：《华北电力大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着社会的不断发展,世界污染日益严重,能源危机不断加剧,为实现人类社会的可持续发展,新能源的开发和利用势在必行。风力发电、太阳能发电及生物质能发电目前都已具有较为稳定成熟的技术,然而受到季节、昼夜、气候等因素的影响,它们通常无法各自独立实现连续稳定的供能。基于这三种能源在时间、空间上的互补性,风能太阳能生物质能联合发电系统能够有效的弥补因昼夜交替和气候变化造成发电间歇性的不足,实现连续稳定的供电。该系统可应用于偏远的因特殊地理环境而导致电网无法覆盖的地区,实现该地区的独立供电。本文对联合发电控制系统进行了研究,主要包括以下内容:对风力发电、光伏发电、沼气发电、蓄电池的工作原理及控制方法进行研究,设计了系统的框架结构,分析系统结构及各部分运行原理,详细阐述系统中重点部分的工作特性及其在系统中的作用,在此理论基础上制定控制策略。首先研究和设计各部分的控制方法,对风能、太阳能发电支路实行最大功率的跟踪控制(),采用扰动测量法,使其始终工作在最大功率点。总电路的控制则根据光照强度和风速的变化进行不同状态的投切。沼气发电机为小型汽轮机,根据能源启动控制条件,在光照强度和风速不足的情况下启动以作为备用电源。蓄电池在任何工况下均要接在电路中,起到稳定直流母线电压的作用:当其他能源发电功率过大时,系统会对蓄电池进行充电;当其他能源供能不足时,蓄电池则放电对系统进行能量补充。最后,根据电路结构图构建系统整体模型,并对各个部分风力发电、光伏发电、沼气发电机及蓄电池的控制模型进行分析,基于012(3$4对整个控制系统进行仿真模拟研究。
[Abstract]:With the development of society, the world pollution is becoming more and more serious, and the energy crisis is becoming more and more serious. In order to realize the sustainable development of human society, the development and utilization of new energy is imperative. Solar power generation and biomass power generation have been relatively stable and mature technology, but by season, day and night, climate and other factors. They are usually unable to achieve continuous and stable energy supply independently. Based on the complementarity of time and space among the three kinds of energy sources. Wind and solar biomass energy combined power generation system can effectively compensate for the lack of intermittent power generation caused by day and night alternation and climate change. This system can be used in remote areas where the power grid can not be covered because of special geographical environment, and realize independent power supply in this area. This paper studies the joint generation control system. The main contents are as follows: the working principle and control method of wind power, photovoltaic power generation, biogas power generation and battery are studied, the frame structure of the system is designed, and the system structure and the operation principle of each part are analyzed. The characteristics of the key parts of the system and its role in the system are described in detail. On the basis of this theory, the control strategy is formulated. Firstly, the control methods of each part are studied and designed to the wind energy. The maximum power tracking control is carried out in the solar power branch, and the disturbance measurement method is adopted. The control of the total circuit is based on the change of light intensity and wind speed. The biogas generator is a small steam turbine, according to the conditions of energy start-up control. The battery should be connected to the circuit under any operating condition, which can stabilize the DC bus voltage: when the other energy generation power is too large. The system will charge the battery; When the other energy supply is insufficient, the battery discharge is used to replenish the energy of the system. Finally, the whole system model is constructed according to the circuit structure diagram, and the wind power generation and photovoltaic power generation for each part of the system. The control model of biogas generator and battery is analyzed.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TM61

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