亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

transFORmation

  • NIST Framework and Roadmap

    Under the Energy Independence and Security Act of 2007 (EISA), the National Institute of Standards and Technology (NIST) was assigned “primary responsibility to coordinate development of a framework that includes protocols and model standards for information management to achieve interoperability of Smart Grid devices and systems…” [EISA Section 1305]. 35 This responsibility comes at a time when the electric power grid and electric power industry are undergoing the most dramatic transFORmation in many decades. Very significant investments are being made by industry and the federal government to modernize the power grid. To realize the full benefits of these investments—and the continued investments forecast for the coming decades—there is a continued need to establish effective smart grid 36 standards and protocols for interoperability.

    標(biāo)簽: Framework Roadmap NIST and

    上傳時間: 2020-06-07

    上傳用戶:shancjb

  • Parallel Power Electronics Filters

    Power Electronics is one of modern and key technologies in Electrical and Electronics Engineering for green power, sustainable energy systems, and smart grids. Especially, the transFORmation of existing electric power systems into smart grids is currently a global trend. The gradual increase of distributed generators in smart grids indicates a wide and important role for power electronic converters in the electric power system, also with the increased use of power electronics devices (nonlinear loads) and motor loadings, low cost, low-loss and high-performance shunt current quality compensators are highly demanded by power customers to solve current quality problems caused by those loadings.

    標(biāo)簽: Electronics Parallel Filters Power

    上傳時間: 2020-06-07

    上傳用戶:shancjb

  • 基于RS-485總線的MODBUS通信協(xié)議在單片機(jī)上的實現(xiàn)

    以倉庫智能改造為背景,主要介紹單片機(jī)和上位機(jī)之間通信網(wǎng)絡(luò)和通信協(xié)議的選擇,MODBUS協(xié)議通信指令和功能碼使用,重點闡述了基于RS-485總線的MODBUS通信協(xié)議在上位機(jī)和單片機(jī)之間的串行通信,實現(xiàn)上位機(jī)對單片機(jī)設(shè)備的遠(yuǎn)程控制和信息采集的功能。Based on the intelligent warehouse transFORmation as the background,mainly introduces between MCU and PC communication network and the choice of communication protocol,instruction and the function code using the MODBUS protocol communication,expounds the MODBUS communication protocol based on RS-485 bus serial communication between PC and single chip microcomputer,PC remote control of single chip computer equipment and the function of information collection.

    標(biāo)簽: RS-485總線 modbus 單片機(jī)

    上傳時間: 2022-03-26

    上傳用戶:

  • 基于DSP28035的高速永磁無刷直流電機(jī)驅(qū)動系統(tǒng)

    基于DSP28035的高速永磁無刷直流電機(jī)驅(qū)動系統(tǒng),包括論文和軟硬設(shè)計資料。摘要參賽作品為基于DSP28035的高速永磁無刷直流電機(jī)驅(qū)動系統(tǒng)。該系統(tǒng)以一臺額定轉(zhuǎn)速60 krpm的高速永磁無刷直流電機(jī)、交錯并聯(lián)的Buck電路以及全橋電路為硬件平臺,以DSP28035為控制核心,實現(xiàn)了調(diào)壓調(diào)速功能和基于坐標(biāo)變換的無位置傳感器新技術(shù)。為實現(xiàn)該系統(tǒng)要求,本作品充分利用了DSP28035的資源例如:CLA模塊,模擬比較器、HPWM模塊以及AD轉(zhuǎn)換模塊等。AbstractThis work is the drive system for a high speed permanent magnet burshless dc motor based on DSP28035. The hardware platform consists of a BLDC motor(rated speed is 60000rpm), a Buck circuit and an inverter. Under the control of DSP28035, this system can achieve the goal of adjusting the motor’s speed with voltage and the function of sensorless control based on the coordinate transFORmation. By making full use of resources of the core, such as CLA, analog comparator, HPWM and AD converters, the whole system can meet the requirements.1 引言高速永磁無刷直流電機(jī)驅(qū)動系統(tǒng)由于基波頻率較高(一般在1kHZ以上),利用逆變橋斬波進(jìn)行調(diào)速的控制方式通常會受到開關(guān)管開關(guān)頻率的限制,因此該系統(tǒng)多采用三相全橋前級加Buck電路進(jìn)承擔(dān)調(diào)壓調(diào)速的功能,而三相全橋主要承擔(dān)邏輯換相的功能。然而,傳統(tǒng)Buck電路所需電感的體積較大,增加了系統(tǒng)的體積,降低了系統(tǒng)的功率密度。

    標(biāo)簽: dsp28035 直流電機(jī)

    上傳時間: 2022-05-08

    上傳用戶:bluedrops

主站蜘蛛池模板: 阳城县| 新民市| 新郑市| 镇原县| 保德县| 平昌县| 徐汇区| 平远县| 会宁县| 稻城县| 大悟县| 托克逊县| 平乡县| 莱芜市| 崇左市| 邵阳市| 和硕县| 昌乐县| 炉霍县| 高清| 临夏县| 仁怀市| 财经| 团风县| 茌平县| 塘沽区| 六安市| 宾阳县| 固安县| 庄浪县| 宝兴县| 上林县| 海原县| 泰和县| 祥云县| 浦城县| 阜南县| 鄂尔多斯市| 中超| 金昌市| 广汉市|