应用无迹卡尔曼滤波算法(UKF)进行锂电池的SOC估计,采用Thevenin二阶RC等效电路模型,对HPPC电池脉冲充放电实验数据进行Matlab处理,得到较为准确的模型.通过在Matlab中编写算法程序,对不同工况的估计值与实际值进行误差估算及对比分析,通过此算法进行SOC估计,得到该算法可有效降低系统误差并纠正SOC的初值偏差.The non trace Calman filter (UKF) is applied to the SOC estimation of lithium battery. The Thevenin two order RC equivalent circuit model is used to process the HPPC battery pulse charge discharge experimental data by Matlab processing, and a more accurate model is obtained. By writing algorithm program in Matlab, the error estimation and comparison analysis of the estimated value and actual value of different states are carried out, and the SOC estimation is carried out by this algorithm. The algorithm can effectively reduce the system error and correct the initial value deviation of the SOC.
标签: 卡尔曼滤波
上传时间: 2022-05-03
上传用户:默默
针对交流电路过零检测电路存在结构复杂、过零点检测不准确、编程繁琐等问题,设计了一种基于LM339的硬件结构简单的过零检测电路。通过仿真软件Mulisim对该设计电路进行了仿真,实验证明了该方案过零检测的可行性、稳定性和可靠性,可直接作为交流电路中CPU的过零信号。Aiming at the problems of AC cilsuit zero crossing detection circuit such as complex structure, zero crossing detection and cumbersome programming, a zero crossing detection circuit with simple hardware structure based on LM339 was designed. The design circuit was simulated by simulation software Mulisim, and the feasibility, stability and reliability of zero crossing detection were proved by experiments, which can be used as zero crossing signal of CPU in AC circuit directly.
上传时间: 2022-05-03
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The JW® 7805 is a low noise low-dropout (LDO) voltage regulator with enable function that operates from 1.8V to 5.5V. It provides up to 300mA of output current and offers low-power operation in miniaturized packaging. JW7805 supports fixed output voltage 0.9V, 1.0V, 1.05V, 1.1V,1.2V, 1.3V, 1.35V, 1.5V, 1.8V, 1.85V, 2.1V, 2.2V, 2.3V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V,3.1V, 3.3V, 3.6V, 4.2V, 4.4V and 5.0V. The features of low quiescent current as low as 6uA and almost zero disable current are ideal for powering the battery equipment. JW7805’s low output noise and high PSRR are also friendly to RF systems.
标签: JW7805
上传时间: 2022-05-06
上传用户:slq1234567890
Vivado设计分为Project Mode和Non-project Mode两种模式,一般简单设计中,我们常用的是Project Mode。在本手册中,我们将以一个简单的实验案例,一步一步的完成Vivado的整个设计流程一、新建工程1、打开Vivado 2013.4开发工具,可通过桌面快捷方式或开始菜单中xilinx DesignTools-Vivado 2013.4下的Vivado 2013.4打开软件,开启后,软件如下所示:2、单击上述界面中Create New Project图标,弹出新建工程向导,点击Next.3、输入工程名称、选择工程存储路径,并勾选Create project subdirectory选项,为工程在指定存储路径下建立独立的文件夹。设置完成后,点击Next注意:工程名称和存储路径中不能出现中文和空格,建议工程名称以字母、数字、下划线来组成。4、选择RTL Project一项,并勾选Do not specifty sources at this time,勾选该选项是为了跳过在新建工程的过程中添加设计源文件。点击Next.IA5、根据使用的FPGA开发平台,选择对应的FPGA目标器件。(在本手册中,以xilinx官方开发板KC705为例,Nexys4开发板请选择Artix-7 XC7A100TCSG324-2的器件,即Family和Subfamily均为Artix-7,封装形式(Package)为cSG324,速度等级(Speed grade)为-1,温度等级(Temp Grade)为C)。点击Next6、确认相关信息与设计所用的的FPGA器件信息是否一致,一致请点击Finish,不一致,请返回上一步修改。二、设计文件输入1、如下图所示,点击Flow Navigator下的Project Manager->Add Sources或中间Sources中的对话框打开设计文件导入添加对话框。2、选择第二项Add or Create Design Sources,用来添加或新建Verilog或VHDL源文件,点击Next
标签: vivado
上传时间: 2022-05-28
上传用户:默默
文档资料 - 0视频教程 - 0工具 - 0ESP8266开发板例程_基于NON-OS_SDK.zip - 273.05MB深蓝串口调试工具(支持UTF-8) - 0乐鑫开发环境搭建 - 0技小新_MQTT单片机编程小工具 - 0UTF-8串口助手 - 0tcp调试助手 - 0SER-NET - 0MQTT_FX客户端 - 0flash_download_tools_v3.6.3 - 0flash_download_tools_v3.6.3.rar - 6.61MBmqttfx-1.7.0-windows-x64 - 0
标签: esp8266
上传时间: 2022-06-05
上传用户:trh505
The information disclosed to you hereunder (the Materials ) is provided solely for the selection and use of Xilinx products. To the maximum extent permitted by applicable law: (1) Materials are made available"AS IS"and with all faults, Xilinx hereby DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS, IMPLIED, OR ST ATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and (2) Xilinx shall not be liable (whether in contract or tort. includina nealigence. or under anv other theorv of liabilitv) for any loss or damage of any kind or nature related to, arising under, or in connection with, the Materials (including vour use of the Materials), including for any direct, indirect, special, incidental, or consequential loss or damage (including loss of data, profits, qoodwill, or any type of loss or damage suffered as a result of anv action brought by a third party)
上传时间: 2022-06-18
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随着数字信号处理技术和数字电路工作速度的提高,以及对于系统灵敏度等要求的不断提高,对于高速、高精度的ADC、DAC的指标都提出了很高的要求。比如在移动通信、图像采集等应用领域中,一方面要求ADC有比较高的采样率以采集高带宽的输入信号,另一方面又要有比较高的位数以分辨细微的变化。因此,保证ADC/DAC在高速采样情况下的精度是一个很关键的问题。ADC/DAC芯片的性能测试是由芯片生产厂家完成的,需要借助昂贵的半导体测试仪器,但是对于板级和系统级的设计人员来说,更重要的是如何验证芯片在板级或系统级应用上的真正性能指标。ADC的主要参数ADC的主要指标分为静态指标和动态指标2大类。静态指标主要有:Differ ential Non-Li nearity(DNL)ntegral Non-Li nearity(INL)Of fset Error ull Scale Gain Error动态指标主要有:
上传时间: 2022-06-19
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本文以感应加热电源为研究对象,阐述了感应加热电源的基本原理及其发展趋势。对感应加热电源常用的两种拓扑结构-电流型逆变器和电压型逆变器做了比较分析,并分析了感应加热电源的各种调功方式。在对比几种功率调节方式的基础上,得出在整流侧调功有利于高频感应加热电源频率和功率的提高的结论,选择了不控整流加软斩波器调功的感应加热电源作为研究对象,针对传统硬斩波调功式感应加热电源功率损耗大的缺点,采用软斩波调功方式,设计了一种零电流开关准诺振变换器ZCS-QRCs(Zero-current-switching-Quasi-resonant)倍频式串联 振高频感应加热电源。介绍了该软斩波调功器的组成结构及其工作原理,通过仿真和实验的方法研究了该软斩波器的性能,从而得出该软斩波器非常适合大功率高频感应加热电源应用场合的结论。同时设计了功率闭环控制系统和PI功率调节器,将感应加热电源的功率控制问题转化为Buck斩波器的电压控制问题。针对目前IGBT器件频率较低的实际情况,本文提出了一种新的逆变拓扑-通过IGBT的并联来实现倍频,从而在保证感应加热电源大功率的前提下提高了其工作频率,并在分析其工作原理的基础上进行了仿真,验证了理论分析的正确性,达到了预期的效果。另外,本文还设计了数字锁相环(DPLL),使逆变器始终保持在功率因数近似为1的状态下工作,实现电源的高效运行。最后,分析并设计了1GBT的缓冲吸收电路。本文第五章设计了一台150kHz,10KW的倍频式感应加热电源实验样机,其中斩波器频率为20kHz,逆变器工作频率为150kHz(每个IGBT工作频率为75kHz),控制孩心采用TI公司的TMS320F2812 DSP控制芯片,简化了系统结构。实验结果表明,该倍频式感应加热电源实现了斩波器和逆变器功率器件的软开关,有效的减小了开关损耗,并实现了数字化,提高了整机效率。文章给出了整机的结构设计,直流斩波部分控制框图,逆变控制框图,驱动电路的设计和保护电路的设计。同时,给出了关键电路的仿真和实验波形。
上传时间: 2022-06-22
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這包 BSP 支持了NUC970 系列芯片. 新唐科技的 NUC970 系列芯片是以 ARM926EJS 為核心的系统级單芯片. 包含了 16kB I-Cache 以及 16kB D-Cache 以及MMU 記憶體管理模塊. 最高支援到 300MHz 的頻率, 並且提供了豐富的外設接口周邊. 有USB 快速Host/Device, SDHC, 支援TFT LCD介面, 網路接口 和I2S audio介面, 有11 組UART…等. 並可以由 NAND flash, SPI Flash 開機.
标签: NUC970
上传时间: 2022-06-23
上传用户:slq1234567890
The GD32F103xx device is a 32-bit general-purpose microcontroller based on the ARM?Cortex?-M3 RISC core with best ratio in terms of processing power, reduced power consumption and peripheral set. The Cortex?-M3 is a next generation processor core whichis tightly coupled with a Nested Vectored Interrupt Controller (NVIC), SysTick timer and advanced debug support.The GD32F103xx device incorporates the ARM ' Cortex?-M3 32-bit processor core operating at 108 MHz frequency with Flash accesses zero wait states to obtain maximumefficiency. It provides up to 3 MB on-chip Flash memory and up to 96 KB SRAM memory. An extensive range of enhanced I/Os and peripherals connected to two APB buses. The devices offer up to three 12-bit ADCs, up to two 12-bit DACs, up to ten general-purpose
标签: gd32f103
上传时间: 2022-07-23
上传用户:aben