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HARDWARE
说明: oled-iic通信通用代码,只需改.h里的修改部分即可使用。(The general code of oled-iic communication can be used only by modifying the modified part in. H.)
- 2020-06-21 21:20:02下载
- 积分:1
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PWM
msp430单片机控制步进马达应用源代码(MSP430 Single-chip stepper motor control application source code)
- 2008-06-10 11:34:35下载
- 积分:1
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200711-0054-05
TMS28335初始化完成之后,
1、 先DDS产生73.35hz的方波。(问流量管固定频率)
2、 乘法器的另一个数字端输入乘数直接给一个固定值(按照5v),系数是固定的就是对应PID输出的那个接口,串行十二位信号输出(需要先定好一个GPIO接口)。
3、 再延迟一定的时间0.1s或其他时间之后,开始ad采集信号,分别采两路AD信号,此时不稳定(为什么要等到一定的幅值才开始采集AD信号)
4、 选择250点估计一个频率,频率估计的方法采用计算峰值次数的方法或者过零点,总之是为了保证精度采用时域估计的算法,这一块主要是一个扫频子程序,计算频率共振点。
5、 之后改变DDS的输出频率,循环对512点的数据进行扫频的处理
6、 频率控制完成之后,就可以缓慢降低PID控制输出的参数,此时暂时不计算频率,通过不断调整系数使AB的幅度保持在1 的范围内。
7、 测试幅度控制稳定之后a、采用幅度和频率同时控制b。采集数据进入频率估计和相位差估计的后续程序的大循环
8、 注意:采样和控制是同时进行的,所以要设置中断,以及看懂AD的程序,以及内部存储以及数据处理资源的分配。
(TMS28335 initialization is complete,
1, the first DDS generated square wave of 73.35hz. (Q flow tube fixed frequency)
2, another digital side of the multiplier input multiplier directly to a fixed value (in accordance with 5v), the coefficient is fixed corresponding PID output interface, serial twelve signal output (need to be a good one GPIO interface).
3, and then after a certain time delay 0.1s or other time, ad signal acquisition were collected two AD signal instability (Why wait until a certain amplitude began collecting AD signal)
4, 250 point estimate a frequency, frequency estimation method using the method of calculation of the number of peak or zero crossing, in short, in order to ensure the accuracy of time-domain estimation algorithm, this piece is a sweep subroutine to calculate the frequency resonance point.
5, after the change of the output frequency of the DDS data of 512 points, the loop processing Sweep
6, after the completion of the frequency control, it can sl)
- 2013-04-07 15:03:14下载
- 积分:1
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3 按键使用
STM32F103控制独立按键和矩阵按键,基于keil4(STM32F103 controls independent keys and matrix keys based on keil 4)
- 2020-06-24 07:20:02下载
- 积分:1
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App_Server
Application client / server
Server Appplication
- 2014-03-14 10:09:17下载
- 积分:1
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基于T5 CPU的DWIN OS程序开发指南V21
说明: dgus的屏幕的基于6系列的选型开发的说明书(Instructions for Selection and Development of dgus Screen Based on 6 Series)
- 2019-08-19 11:28:38下载
- 积分:1
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power-flow
电网内的多个风电场风速往往因为其地理位置的远近而有着不同程度的相关性,采用Nataf
逆变换技术即可建立不同风电场之间具有相关性的风速分布样本空间,进而得到具有相关性的风
电场出力。在仿真过程中考虑风速的不确定性,将每个风电场出力视为一个负的满足威布尔随机
分布的负荷,根据历史数据,用方差—协方差矩阵描述不同风电场相关系数,建立最优潮流模型。
最后,在风电接入改进IEEE 30及IEEE 118节点系统中应用蒙特卡洛仿真计算,定量研究随着风
电场之间相关性的增强,最优潮流结果各项指标的波动情况。(Multiple wind speed within the grid often because of their geographical proximity and have different degrees of relevance, Nataf inverse transform using technology to build wind speed distribution between the sample space with different wind farms correlation, and then get relevant The wind farm output. Consider wind uncertainty in the simulation process, the output of each wind farm to meet the load as a negative Weibull random distribution, based on historical data, variance- covariance matrix of correlation coefficients describing different wind farms, the establishment of optimal fashion models. Finally, to improve access to wind power IEEE 30 and IEEE 118-node system Monte Carlo simulation, quantitative research with enhanced correlation between wind farms, OPF result of fluctuations in the indicators.)
- 2014-04-20 14:58:02下载
- 积分:1
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MrJafariPRJ
Fault Classification in PSCAD
- 2016-09-20 20:01:03下载
- 积分:1
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OLED 模块 使用说明
说明: OLED 屏幕的中文参考手册,详细的记录了OLED 的所有信息,包含了基本的使用方法,对新手十分适合(OLED screen Chinese reference manual, detailed records of all the information of OLED, including the basic use of new novice is very suitable.)
- 2020-06-19 14:40:01下载
- 积分:1
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ElectronicDesignCompetitionFirstPrize2009NationalW
本系统根2009年全国大学生电子设计大赛A题:光伏并网发电模拟装置 的任务要求,对光伏并网发电模拟装置的原理和结构进行参数的计算与分析,设计并制作了一个设计并制作一个光伏并网发电模拟装置。(The system root 2009 National Undergraduate Electronic Design Contest A question: Photovoltaic power generation analog devices with the demands of photovoltaic power generation simulator principle and structure parameters of the calculation and analysis, design and production of a design and producing a photovoltaic power generation simulator.)
- 2010-08-22 12:18:45下载
- 积分:1