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dbj
- 油田电泵井测试程序,主要测试电压、电流、功率,计算出功率因子,并用图形绘出-Oilfield pump wells test procedures, a major test voltage, current, power, power factor is calculated and plotted graphically
power-flow
- 潮流计算,计算电力系统的潮流,通过电流电压计算系统功率流动-POWER FLOW
Power-frequency-table
- 工频表:1.电压相关量;2.电流相关量;3.功率相关量;4.谐波相关量-Power frequency table: 1. Voltage related quantities 2. Related to the current amount 3 power related quantities 4. Harmonically related to the amount of
gao--pingzhi
- 声频功率放大器的参数如下: 1.放音频率(-3dB 电平)的额定范围为25~22000HZ; 2.立体声道的有效功率为5.5W × 2; 3.低频道的有效功率为22W; 4.额定输入电压0.25V; 5.在额定输入电压时谐波系数为0.12%; 6.电压放大系数为26dB; 7.静态电流120mA~150mA; 8.电源电压为11.7~14.4V。-The acoustic parameters of the power amplifier is as follow
S8050
- S8050详解 耗散功率0.625W(贴片:0.3W)集电极电流0.5A集电极--基极电压40V集电极--发射极击穿电压25V集电极-发射极饱和电压 0.6V特征频率fT 最小150MHZ 典型值产家的目录没给出引脚排列为EBC或ECB 838电子按三极管后缀号分为 B C D档 贴片为 L H档-S8050 Xiangjie power dissipation 0.625W (SMD: 0.3W) collector current of 0.5A collector- base v
socket
- 智能排插上位机的应用程序,能实现对排插的电压、电流、功率、工作时间的智能监控-Smart power strip host computer applications, to achieve intelligent control of the power strip voltage, current, power, working time
Power-Flow
- 本程序的功能:在直角坐标系中,运用牛顿---拉夫逊法求解一般的潮流问题, 形成节点导纳矩阵、雅克比矩阵来建立修正方程,求解偏移量和电压新值, 进而求解电流、相角和输入功率、输出功率以及线路功率及其损耗问题。-This program features: In the Cartesian coordinate system, using Newton--- Raphson method for solving general trend of the problem, the forma
PQ
- 三相并网逆变器,有电压环和电流环双环控制,电流环参考值有功率控制-Three-phase grid-connected inverter with voltage control loop and current loop double loop, current loop power control reference values
PV
- 三相并网逆变器,有电压环和电流环双环控制,电流环参考值有功率控制-Three-phase grid-connected inverter with voltage control loop and current loop double loop, current loop power control reference values
1_5MWDFIG-kongzhixitong
- 本文设计了1.SMW双馈型风机变频器的整体硬件电路,满足风机整体工作的稳定 性和高效率"为实现LVRT功能,设计了一种新的CROWBAR电路,并对电路的控制 电路做了改进"研究了1.SMW双馈型风机变频器系统的控制策略,转子侧变换器采用 定子磁链定向矢量控制技术,网侧PWM变换器采用电网电压定向矢量控制技术,构建 了电流内环!电压外环的双闭环PI控制系统,导出了采用转子有功电流和无功电流独 立解祸来控制有功功率和无功功率的策略-This pape
ADE7753
- ADE7753 单相电能检测,实现对电压、电流、功率及用电量等计算。-ADE7753 single-phase energy detection, to achieve the voltage, current, power and consumption of electricity and other computing.
ADE7758
- ADE7758实现对三相电能的检测,包括电压、电流、功率及电量等检测-ADE7758 achieve the three-phase power testing, including voltage, current, power and electricity, such as testing
ycx.plm
- 用于车上的多功能显示器,有电压,电流采集,电量计算,车速计算,里程计算,功率计算及显示。已用于车上-The multi-function display for the car, there is voltage, current acquisition, power calculation, speed calculations, mileage calculation, power calculation and display. Has been used in the car
Voice-storage-playback-system
- 控制核心采用超低功耗MSP430F149单片机,采用片内flash作为存储器,采用单片机内集成12位ADC,采样频率为8 KHz,数字信号经DAC0832转换、电流至电压变换后成为模拟语音信号,经带通滤波器再送往音频功率放大器进行回放。-Voice storage playback system
powerquality
- 通过qt编写的电能质量实时显示程序,可以实现对电压、电流、功率等参数显示-Qt prepared power quality through real-time display program, you can achieve the voltage, current, power and other parameters show
FBD
- 为了更好地进行谐波和无功功率的补偿与控制,叶FBD(Fryze一Buchholz一DPenbrock)法的定 义进行了完善,并给出了补偿电流检测的直接法和间接法,在三相电力系统中对FBD间接法进行 了推广研究,利用参考电压进行投影变换,不仅可以检测出功率电流和零功率电流,还可以检测出 基波有功电流、基波无功电流、谐波电流以及任意次谐波电流等,大大拓展了FBD法的应用范围和领域。MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。 -In order to
main
- 对电网电气量参数(电压,电流)就行采样检测,并计算出无功功率大小,从而判断电容的投切-Electrical quantities on the grid parameters (voltage, current) on the line sampling and testing, and calculate the size of reactive power, in order to determine capacitor switching
dianyabiao
- 用STC12C5A60S2自带的10位AD输出两路信号分别表示电压,电流,并算出功率,显示在带字库12864LCD上。-With built-in 10 AD STC12C5A60S2 two signals respectively output voltage, current, and calculate the power, displayed in the upper 12864LCD with font.
Power-measurement
- MSP430F149单片机为核心,输出电压通过单片机内部AD、外部AD进行采集,然后将得到的数据送到Nokia5510液晶屏显示,当漏电电流值大于或等于30mA时,漏电保护装置动作,断开输出电压并声光报警;当漏电故障排除后,按下复位键即可恢复输出。Nokia5510液晶屏可实时显示稳压电源输出电压、负载电流和输出功率。-MSP430F149 MCU as the core, the output voltage through the single chip microcomputer inte
PQ_good
- 瞬时无功功率PQ法!直接输入相应的ABC三项电流和电压!通过采样频率确定采样点数。本程序是以9600的采样频率为例!-The instantaneous reactive power PQ method!ABC three with the corresponding input current and voltage directly!Determined by the sampling frequency sampling points.This program is 9600 sampli