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In this paper a device based on 8098 single chip processor(SCP)is introduced. It ca n be usedto control the reactive power and voltage of power sys-tems. 本文介绍了一种由8098单片机构成的无功/电压补偿自动装置的原理及软硬件结构。
dynamic optimal reactive power and voltage control 动态无功／电压优化控制
reactive power and voltage management 无功电压管理
Reactive power and voltage control 无功电压控制
Effect Study of the Power Plants in Regulating and Controlling the Power System Reactive Power and Voltage 发电厂在电网无功电压调控中的作用研究
Current Status of Reactive Power and Voltage in Xi'an Power Grid and Some Measures for Improvement 西安地区电网无功电压现状分析和改进措施探讨
Real-time Control System for Reactive Power and Voltage in Qin-zhou Power Network of Guangxi 广西钦州电网的无功电压实时控制系统
Influence of Undervoltage Closeclock Setting of Compositive Reactive Power and Voltage Controlling Device on Networks Voltage Stability 电压无功综合控制装置欠压闭锁定值整定对电网的影响
Tertiary reactors can be economically switched as system reactive power requirements and voltage profiles vary. 接在第三绕组上的电抗器可根据系统无功的要求以及电压分布的变化而经济地投切。
reactive power and voltage 无功电压
Its function includes the measurement of current,voltage,frequency,phrase,power,factor,active power and energy,reactive power and energy. 其主要功能包括对电流、电压、频率、相位、功率因数、有功功率、有功电能、无功功率、无功电能等测量,并具有测量数据并行输出接口。
To reduce the active power and DC voltage fluctuation and accelerate tracking speed during system start, this paper proposes a new strategy setting reactive power reference based on the error between the instantaneous active power and its reference. 为了抑制电压型PWM整流器直接功率控制中的有功功率、直流电压波动,加快系统的跟踪速度,提出了根据有功功率瞬时值与有功功率给定的差值设定无功功率给定值的新策略。当有功功率瞬时值与有功功率给定的差值小于给定临界值时,无功功率给定值为零;
Some electric paramentrs such as voltage rms value,current rms value,active power and reactive power can be measured. EPSOC can be used for single (three) phase electrical energy meter,electrical quantity transducer,and power monitoring equipment. EPSOC可以测量电压有效值、电流有效值、有功功率、无功功率等电力参数,可以用于单(三)相电能表、电量变送器,也可以用于电力监测装置。
The control of voltage and reactive power are inseparable. 电压控制和无功功率的控制是分不开的。
Active power filter (APF) is a new type of compensation device for reactive power and harmonics. 有源滤波器(Active Power Filter,APF)是近年来提出的新型无功、谐波补偿装置。
The controlof voltage and reactive power are inseparable. 电压控制和无功功率的控制是分不开的。
RMS, reactive power and active power are calculated most efficiently and most accurately using wavelet transform in time domain. 用小波变换可在时间域高效准确地求电压电流有效值、有功和无功。
It also gives a method to calculate active power and reactive power with harmonic waves, and the 2k byte software block. 给出了含有谐波情况下的有功、无功功率的计算方法和2K字节的软件框图。
The decoupled control of active power and reactive power is a key technology of variable speed constant frequency (VSCF) wind energy generation system. 双馈发电机的有功和无功功率的解耦控制是变速恒频(VSCF)风力发电系统的关键技术。
This strategy adopts the hierarchical balance optimization of reactive power and improves the traditional "nine-zone diagram" control method. 该控制策略采用无功分层分区平衡优化原则,改进了传统的变电站“九区图”控制方法。