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DAMPPT
光伏电池阵列输出功率受光照强度和温度变化的影响,因此最大功率点跟踪(MPPT)技术广泛应用于光伏系统中。在所有最大功率点(MPP)控制策略中,扰动观察(P&O)MPPT算法因易实现被广泛应用,然而它的缺点是在稳定工作状态下工作点通过MPP 时会导致能量振荡损耗,并且在光照强度或温度发生突变时表现较差的动态响应。在本文中,提出一种改进型变步长扰动观察MPPT 算法,此方法依据工作点动态调整步长变化,与传统固定步长方法比较,本文提出的方法能有效地提高MPPT 速度和转换效率,通过仿真和实验结果分析,验证了此改进算法的可行性。(PV array output power by light intensity and temperature changes, so the maximum power point tracking (MPPT) technology is widely used in photovoltaic systems. In all the maximum power point (MPP) control strategy, the perturbation and observation (P & O) MPPT algorithm because easy to implement is widely used, but its disadvantage is the steady-state operating point by the MPP causes energy oscillations loss, and in the light intensity or temperature mutated poor performance dynamic response. In this paper, we propose a modified variable step size perturbation and observation MPPT algorithm, this method is based on dynamically adjusting the operating point changes in steps, with the traditional fixed-step methods, the proposed method can effectively improve the speed and efficiency MPPT, The simulation and experimental results verify the feasibility of this algorithm.)
- 2021-01-02 16:08:56下载
- 积分:1
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chap1_9
专家PID与普通PID的比较,说明专家PID优于普通PID(Compared with common PID, expert PID expert PID is better than the ordinary PID
)
- 2014-12-18 14:29:28下载
- 积分:1
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xiaobo
小波变换和小波包去噪程序,程序清晰,可执行,有注释(Wavelet transform and wavelet packet denoising procedures, procedures are clear, can be implemented, there are notes.)
- 2016-07-02 16:26:02下载
- 积分:1
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engineMAP
电喷摩托车发动机基本喷油量MAP图仿真.利用matlab对发动机的MAP图进行仿真(Motorcycle Engine simulation of the basic fuel injection quantity map MAP. Using matlab MAP map of the simulation engine)
- 2010-09-24 11:08:42下载
- 积分:1
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autocorrelation
自相关信号检测仿真程序。在数据处理过程中,首先要检测信号的存在和大致位置。(Self-related signal detection simulation program. In the data processing, the first to detect the presence and approximate location of the signal.)
- 2013-01-05 18:14:51下载
- 积分:1
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Aerodynamics
本课程是航空航天类院校本科飞行器设计与工程专业教学计划中的一门技术基础课。为飞行器设计与工程专业学生的必修课。本课程的目的和任务是使学生掌握流体力学基本知识和空气动力学的基本概念、基本理论,以及解决空气动力学问题的基本方法和分析手段。本课程的内容可分为两大部分:低速空气动力学和可压缩空气动力学,包括了空气动力学的基本概念、低速流动和可压缩无粘流动的基本原理、绕翼型和机翼的不可压缩流动的薄翼理论和有限翼理论、激波理论、翼型亚音速和超音速线化理论及应用等。(This course is a class of undergraduate aerospace vehicle design and engineering teaching program in a technical basic course.)
- 2010-05-08 10:41:46下载
- 积分:1
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FCMAC
a good paper for cmac
- 2006-11-06 19:37:50下载
- 积分:1
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cuckoo_search
cuckoo search an evolutionary algorithm in optimization technique
- 2011-10-12 13:21:14下载
- 积分:1
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count
使用VC创建Matlab数组、删除数组,进行二次编程(Matlab using the VC to create an array, delete array, a second program)
- 2011-11-20 18:36:34下载
- 积分:1
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变换模块 本模块包含两部分内容IM0623
(1)变换模块
本模块包含两部分内容:利用 反变换规则将 坐标系下的两相电流转换成三相电流;利用间接矢量控制,得到转子角位移,公式如下(2) 电流滞环控制器(Hysteresis current controller)模块(3) 电压源型逆变器(Voltage sourse inverter,VSI)模块
(4) 变换模块(5) 感应电机(IM)模块
该感应电机模型是基于交流电机的电路方程、转矩方程以及运动方程建立起来的。该仿真模块为一个三输入、六输出的系统子模块。输入为 坐标系中定子电压,输出则是 坐标系中的转子电流和转子磁链,以及输出的转矩。(6) 电流反馈模块(7)速度控制器模块
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- 2008-03-19 17:12:01下载
- 积分:1