基于海浪发电系统谐波治理的研究

发布时间：2018-04-29 01:31

本文选题：谐波 + 非线性负载　；参考：《武汉科技大学》2016年硕士论文

【摘要】：当今社会资源匮乏,能源短缺,环境污染严重。为了人类的生存,为了保护地球环境,各国逐渐将目光转向各式新能源的开发利用上。太阳能、风能、海洋能等各种清洁新能源逐一被各国作为重点研究对象。海洋能中的海浪能在地球上蕴含最为丰富,对海浪能的开发利用也逐渐被各国提上日程。海浪能发电的原理是将海洋中的海浪能通过海浪共振器和液压马达转换为机械能,带动发电机工作,将机械能最后转换成电能,提供给海岛居民和驻军部队使用。本文提出的是集海浪发电与谐波治理一体的发电系统,发电和谐波治理共用一套装置并在发电的过程中直接对谐波进行处理,能够节约经济成本。海浪发电系统多处于偏远的海岛或海边,系统发电多用于居民用电和军事用电,故系统电网负载多由冰箱、洗衣机、电扇及雷达、监控等非线性负载组成。在海浪发电系统中会有多处谐波源产生谐波污染电网,传统的有源电力滤波由于未能考虑模型本身、计算误差、环境干扰等产生谐波以及谐波量的延时,在本系统的应用中不能达到较好的谐波消除结果,所以需要提出新型谐波治理方案。新型谐波治理方案就是在传统的有源电力滤波的基础上加上一个谐波偏差控制环节,在该偏差控制环节中加入模糊控制器使用模糊算法。并且在PWM控制器处采用谐波载波的方式,该方式具有快速性好、节约投资、精度好控制的优点。最后在MATLAB上进行仿真,对比传统有源滤波和新型有源滤波的仿真结果,并以仿真结果为指导,在实验室平台进行系统实物模拟,由于条件限制,滤波效果不及仿真结果,但能验证方案的正确性。
[Abstract]:In order to survive, in order to protect the earth's environment, countries are gradually turning their eyes to the development and utilization of various new energy sources for the survival of the human beings. The new energy sources such as solar energy, wind energy and ocean energy are the key research object by one country. The ocean waves can be contained on the earth. The principle of wave energy generation is to convert ocean waves through sea wave resonators and hydraulic motors to mechanical energy, to drive generator work, to convert mechanical energy into electrical energy, and to provide to sea island residents and garrison troops. This article is put forward in this paper. The power generation system which is integrated with the harmonic generation and harmonic generation, the harmonic generation of the power generation sharing a set of devices and the direct processing of the harmonics in the process of generating electricity, which can save the economic cost. The ocean wave power system is mostly in the remote island or the seaside, the system power is used for the residents and the military, so the system grid load is more than the refrigerator. In the wave generation system, there are many harmonic sources in the wave generation system to produce harmonic pollution power grid. The traditional active power filter can not achieve the better harmonic in the application of this system because of the failure to consider the model itself, the calculation error, the environmental interference and so on. It is necessary to put forward a new harmonic control scheme. The new harmonic control scheme is to add a harmonic deviation control link on the basis of the traditional active power filter. The fuzzy controller is used in the error control link to use the fuzzy algorithm. And the harmonic carrier is used in the PWM controller. In the end, the simulation results of the traditional active filter and the new active filter are compared with the simulation results on the traditional active filter and the new active filter. The simulation results are guided by the simulation results and the simulation results of the system are carried out on the laboratory platform. The filter effect is not as good as the simulation results, but the correctness of the scheme can be verified by the simulation results on the MATLAB.

【学位授予单位】：武汉科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P743

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