摘要
通过对波浪发电的现状、发展趋势以及波浪的特性进行分析,提出了一种采用弹簧振子作为动子的直线发电装置。通过对该装置自身结构进行简化分析并对其建立数学模型;根据线性波理论给出的波浪力与时间的关系建立数学模型的微分方程;在对该微分方程进行拉普拉斯(laplace)变换整理后再进行拉普拉斯反变换,得到发电机的动子与定子相对位移随时间的变化关系,进而得到发电装置的发电功率,并选取参数采用matlab软件进行仿真模拟,绘制位移-时间图和P-c-k关系曲线。结果表明,在设计参数下装置发电功率可达到78.6 W。
By analyzing the status, trends and characteristics of the wave power, a Permanent- Magnet Linear Generator based on the spring oscillator as a linear promoter was proposed. Through simplifying the structure of the device and building a mathematical model, several differential equations are built based on the linear wave theory, which portray the relationship between the force of waves and time. Using Laplace transform and inverse transform, the relationship of the relative displacement of the linear promoter and the stator changing over time is gained, and then the generating power of the device can be calculated. Selecting a set of parameters on certain condition, took a simulation experiment with the software MATLAB, and then draw a displacement - time graph and P-c-k relation curves. The result indicates that the power of this device can reach 78.6 W in the designed parameters.
出处
《可再生能源》
CAS
北大核心
2013年第1期117-120,共4页
Renewable Energy Resources
基金
华中科技大学大学生科技创新基金资助项目(No.201106)
关键词
发电
弹簧振子
数学模型
拉普拉斯变换
线性波理论
generate electricity
spring oscillator
mathematical model
Laplace transform
lin-ear wave theory
