Under the condition of meeting the demand on the performance, a simple and effective dynamic voltage scaling ( DVS) method is introduced to reduce the CPU power consumption. 介绍了一种简单而有效的动态电压缩放(DVS)来降低CPU功耗,同时满足控制需求。
Matlab emulation proves that wavelet transform is a kind of effective voltage flicker analysis method. 仿真表明,小波变换分析方法是一种有效的电压闪变分析方法。
The simulation results of a practical network show that the method is effective in improving the voltage profiles. 采用最大和最小两种运行方式及较长时间段内负荷的变化,通过禁忌搜索求解组合优化问题,仿真结果表明所提出的方法可以有效提高实际系统的电压合格率。
The SVPWM can effectively lessen the distortion of output current and switch loss. Compared with sine PWM used widely at present, it can prominently increase effective output voltage and reduce harmonics. SVPWM能有效的减少输出电流失真及切换损耗,它与目前广泛使用的正弦式PWM比较,可以显著的增加有效输出电压及降低谐波含量。
The article discusses the influence of design parameters of static drive FE LCD on effective voltage of liquid crystal layer and gives some basis about design and analyse of this LCD. 讨论液晶显示器在静态驱动条件下,设计参数对加在液晶层上的有效电压的影响,为液晶显示器的设计和分析提供了依据。
The outer-loop adopting the voltage effective value feedback regulates voltage output and reduces the steady error of output voltage. 外环采用电压有效值反馈,调节输出电压,内环采用电感电流瞬时值反馈,提高系统动静态特性,并对采用该方案的级联逆变器进行了全面分析。
This design can measure effective value of voltage and effective value of electric current, active power, reactive power, power factor, effective value of voltage base-wave, total partial-wave and so on. 本设计可测量电压有效值、电流有效值、有功功率、无功功率、功率因数、电压基波及总谐波的有效值等一系列参数;
Furthermore, based on the voltage-profile correlation analysis, the influential buses where the most effective voltage adjustment may be strategically applied to assist a sensitive bus to recover from the severe voltage fluctuation arising from the disturbance can be deduced. 此外,通过对电压曲线的相关分析,找出了系统中的关键节点,对这些节点实施有效的电压调节,将有助于故障后敏感节点电压的恢复。
On-load transformer can regulate voltage with load, and it is a effective means for voltage control. 有载调压变压器能够带负荷调节电压,是电压控制的有效手段。
Series dynamic voltage regulator ( short for DVR) is an effective way to solve voltage sag problems. 串联型动态电压调节装置(简称DVR)是解决电压跌落的有效手段。
Study on enhanced treeing property for polyethylene by effective voltage stabilizers 提高聚乙烯树枝化性能和机理的研究
The unified power flow controller ( UPFC) has been proved to be an effective means for regulating voltage and power flow in modern power systems. 在现代电力系统中,统一潮流控制器(UPFC)是调节电压和潮流的有效手段。
Measurement of the effective modulation voltage of the electrode indicates that the electric spatial resolution of the mechanism is less than 1 μ m, and the sensitivity the mechanism is of 12 6mV/ Hz. 实验结果表明,电场空间分辨率小于1μm,电压灵敏度为126mV/Hz。
A cost effective high voltage technique based on standard CMOS technology to extend the operation voltage of the devices without any modification of the present process routine is simulated and verified in this paper. 模拟和验证了一种低成本的,以标准CMOS工艺为基础,无需对原工艺流程进行改动的高压工艺技术。
This paper discusses the design method of an effective voltage linearity controller of linear load working in AC power networks. 本文介绍了工作于交流电网中线性负载有效值电压线性控制器的设计。
For example, the effective capacitance model and effective voltage source model offered in file have lots of calculations and provide pessimistic delay approximation which is unacceptable. 针对RC负载提出的等效电容分析及有效电压源模型都有很大的计算量,而且计算准确性也不高。
Evaluation of the Visual Angle Characteristics with Effective Operating Voltage Range in LCD LCD器件工作电压允许取值范围与视角特性的评估
So, the reactive power optimization in distribution network is effective to ensure voltage quality, reduce the network loss. 因此,配电网无功优化对于提高电网电压质量、减小网损,实现节能型电网具有重要的现实意义和显著的经济效益。
Voltage fluctuation and flicker is an important aspect of power quality. Taking effective measurements of voltage fluctuation and find out the flicker source are significant to the compensation of voltage fluctuation. 电压波动与闪变是电能质量问题的重要方面,对其进行有效地监测,并找到闪变扰动源,对电能质量问题的治理有重要意义。
Because of load forecasting and economic dispatch are already essential functions in the operation of power systems, and have pretty high precision, therefore the algorithm can reflect the actual operation and provide effective voltage stability assessment. 负荷预测和经济调度已经是电力系统运行必备的功能,且具有相当高的精度,故此算法能够比较真实地反映电力系统运行情况,有效地评估电压稳定。
The simulation and analyzing of the results validate that the control method can support effective system voltage following disturbances and keep reactive power reserve in SVC during steady-state operation to provide reactive power requirements during system dynamics. 最后通过对仿真结果的分析,证明了该控制策略可以有效地跟踪电压波动,并且在系统稳态运行的状态下进行无功备用,满足了电力系统的动态需要。
Reactive power optimization is an effective measure to enhance voltage quality, reduce power loss and improve system stability. 无功优化是改善电压质量、降低系统有功损耗和提高系统稳定性的有效措施。
The continuous voltage sag compensation, the effective use of DC voltage, low-pass filtering and other issues is solved. 解决了电压暂降持续补偿、直流电压有效利用、低通滤波等问题。
Voltage stability project of Hunan power grid as the background, in this dissertation an attempt is made to implement effective online voltage stability monitoring. The contents include fast assessment methods for power system static voltage stability and its preventive control approach. 本文以湖南电网电压稳定性科研项目为背景,以实现对电力系统电压稳定性的在线监控为目的展开了深入的研究,内容涉及到静态电压稳定性的快速评估算法及其预防控制策略等方面。
Running results show that the proposed design of the system structure and distance programs can be more accurate and rapid positioning the point of failure, effective raise the high voltage power system reliability. 运行结果表明了本文设计的系统结构和测距方案可较准确、快速定位故障点,有效提高了高压电网的供电可靠性。
As one of the most effective voltage support equipments, static var compensator ( SVC) has been increasingly applied in modern power systems. 作为一种有效的无功功率补偿设备,静止无功补偿器(SVC)在电力系统中得到了广泛应用。
Welding voltage and current can reflect behaviors and states of welding arc. It is an effective method that picking voltage and current signal to achieve real-time monitoring of weld process and evaluate welding quality. 焊接电弧的行为和状态可由焊接电流和电弧电压反映,以电压、电流信号作为信号源进行采集和分析是实现焊接过程实时监测和焊接质量判别的有效方法。
Beijing grid of reactive power compensation devices on low voltage of reactive power compensation, form is single. in the event of a larger accident case in some areas, the lack of effective voltage support. 北京电网无功补偿装置长期以低压侧的无功补偿为主,形式较为单一,在发生较大事故情况下,部分地区缺乏有效的电压支撑。
It is difficult to achieve a flexible and effective voltage control of micro-grid if we use traditional centralized approaches. 微网的特点决定了以往由调度中心统一判断和调度的集中式方法难以实现微网电压灵活、有效的控制。
SVPWM technology has some merits such as low switching frequency and effective utilization of voltage. Therefore it has found widely application in the three-phase AC motor. SVPWM方案具有开关频率低、电压利用率高等优点,因而在三相交流电机中得到广泛应用。