基于混合储能装置的风光互补发电系统
发布时间：2018-11-10 10:04
【摘要】：社会经济发展、环境问题、资源匮乏带来了人类寻求新能源的压力,风能和太阳能等新型环保可再生能源的重要性日益凸显,但其固有的随机性、间歇性等缺点都严重制约着其广泛应用,由于风能和太阳能在时间及空间上具有互补性,因此风光互补发电系统无疑是未来可再生能源发电系统的主要研究方向,但是风光互补发电系统的输出功率具有波动性,且如何将风能和太阳能进行有效存储都是目前亟需解决的问题,针对上述问题,本文进行了如下研究：首先,介绍风力发电系统和光伏发电系统的输出特性,通过分析两种发电系统在时间上和空间上的互补性及其能够相互平抑的特点,引出发展风光互补发电系统的必要性。同时通过分析蓄电池和超导储能的特性,将蓄电池和超导储能组成混合储能装置,从而满足整个系统的经济成本和利用效率。其次,为减少风光互补发电系统中谐波分量的波动性,利用储能装置和滤波装置对有功功率电流和无功功率电流控制结构相似性,本文将储能装置作为滤波装置使用,将风光互补发电系统的输出电流中谐波部分通过控制进行滤波,为提高滤波效率,提出自适应Prony互信息特征提取算法,分析谐波电流之间的互信息。为了提高平抑效率,本文通过对储能装置的电压和电流进行控制来实现对混合储能系统的控制,并引用自适应模糊控制算法,通过对蓄电池和超导储能的充放电状态进行分析,从而提高储能系统响应的准确性和快速性。最后,为验证风光互补发电系统的有效性,通过PSCAD/EMTDC仿真软件建立基于混合储能装置的风光互补发电系统,通过仿真结果可知,将储能装置作为滤波装置使用,也可降低风光互补发电系统输出功率的谐波含量,从而进一步降低对储能装置的影响；在混合储能装置的作用下,风光互补发电系统输出功率趋于稳定,混合储能装置可提高蓄电池的使用寿命、降低系统成本、提高储能装置利用率。
[Abstract]:Social and economic development, environmental problems and lack of resources have brought about the pressure of human beings to seek new energy sources. The importance of new environmentally friendly renewable energy such as wind energy and solar energy is becoming increasingly prominent, but its inherent randomness. Because wind energy and solar energy are complementary in time and space, wind and solar power systems are undoubtedly the main research direction of renewable energy generation system in the future. However, the output power of wind-wind complementary power generation system is volatile, and how to store wind energy and solar energy effectively is a problem that needs to be solved at present. In view of the above problems, this paper has carried out the following research: first of all, This paper introduces the output characteristics of wind power generation system and photovoltaic power generation system. By analyzing the complementarity between the two systems in time and space and their ability to stabilize each other, the necessity of the development of wind power generation system and photovoltaic power generation system is introduced. At the same time, by analyzing the characteristics of storage battery and superconducting energy storage, the hybrid energy storage device is made up of the storage battery and superconducting energy storage, so as to meet the economic cost and utilization efficiency of the whole system. Secondly, in order to reduce the fluctuation of harmonic component in the wind and wind complementary generation system, the energy storage device is used as the filter device to control the active power current and reactive power current by using the energy storage device and the filter device to control the active power current and the reactive power current. In order to improve the filtering efficiency, an adaptive Prony mutual information feature extraction algorithm is proposed to analyze the mutual information between harmonic currents. In order to improve the stabilization efficiency, the control of the hybrid energy storage system is realized by controlling the voltage and current of the energy storage device, and the self-adaptive fuzzy control algorithm is used to analyze the charging and discharging state of the storage battery and superconducting energy storage system. In order to improve the accuracy and rapidity of energy storage system response. Finally, in order to verify the effectiveness of the wind and wind complementary power generation system, a hybrid energy storage system based on the hybrid energy storage unit is established by PSCAD/EMTDC simulation software. The simulation results show that the energy storage device is used as a filter device. It can also reduce the harmonic content of the output power of the wind and wind complementary power generation system, thus further reducing the influence on the energy storage device. Under the action of the hybrid energy storage unit, the output power of the wind power complementary generation system tends to be stable. The hybrid energy storage device can increase the service life of the battery, reduce the system cost and improve the utilization ratio of the energy storage unit.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM61
本文编号：2322137
[Abstract]:Social and economic development, environmental problems and lack of resources have brought about the pressure of human beings to seek new energy sources. The importance of new environmentally friendly renewable energy such as wind energy and solar energy is becoming increasingly prominent, but its inherent randomness. Because wind energy and solar energy are complementary in time and space, wind and solar power systems are undoubtedly the main research direction of renewable energy generation system in the future. However, the output power of wind-wind complementary power generation system is volatile, and how to store wind energy and solar energy effectively is a problem that needs to be solved at present. In view of the above problems, this paper has carried out the following research: first of all, This paper introduces the output characteristics of wind power generation system and photovoltaic power generation system. By analyzing the complementarity between the two systems in time and space and their ability to stabilize each other, the necessity of the development of wind power generation system and photovoltaic power generation system is introduced. At the same time, by analyzing the characteristics of storage battery and superconducting energy storage, the hybrid energy storage device is made up of the storage battery and superconducting energy storage, so as to meet the economic cost and utilization efficiency of the whole system. Secondly, in order to reduce the fluctuation of harmonic component in the wind and wind complementary generation system, the energy storage device is used as the filter device to control the active power current and reactive power current by using the energy storage device and the filter device to control the active power current and the reactive power current. In order to improve the filtering efficiency, an adaptive Prony mutual information feature extraction algorithm is proposed to analyze the mutual information between harmonic currents. In order to improve the stabilization efficiency, the control of the hybrid energy storage system is realized by controlling the voltage and current of the energy storage device, and the self-adaptive fuzzy control algorithm is used to analyze the charging and discharging state of the storage battery and superconducting energy storage system. In order to improve the accuracy and rapidity of energy storage system response. Finally, in order to verify the effectiveness of the wind and wind complementary power generation system, a hybrid energy storage system based on the hybrid energy storage unit is established by PSCAD/EMTDC simulation software. The simulation results show that the energy storage device is used as a filter device. It can also reduce the harmonic content of the output power of the wind and wind complementary power generation system, thus further reducing the influence on the energy storage device. Under the action of the hybrid energy storage unit, the output power of the wind power complementary generation system tends to be stable. The hybrid energy storage device can increase the service life of the battery, reduce the system cost and improve the utilization ratio of the energy storage unit.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM61
【参考文献】
相关期刊论文 前3条
1 樊冬梅;雷金勇;甘德强;;超导储能装置在提高电力系统暂态稳定性中的应用[J];电网技术;2008年18期
2 孙卫华;;风光互补发电系统在高速公路中的应用研究[J];黑龙江交通科技;2008年07期
3 周世琼;卢智峰;康龙云;;太阳能电池的建模与仿真[J];深圳信息职业技术学院学报;2012年01期
相关博士学位论文 前1条
1 欧阳名三;独立光伏系统中蓄电池管理的研究[D];合肥工业大学;2004年
，本文编号：2322137
本文链接：https://www.wllwen.com/kejilunwen/dianlilw/2322137.html
教材专著
