This changing "reactive" load causes the amp output level to change with frequency and changes in speaker impedance ( a dynamic thing that changes as the speakers are driven harder). 这种变化的“反应”负荷导致功放输出水平的变化与频率变化,音箱阻抗(动态改变的内容作为扬声器驱动更难)。
Numerical value analysis of relationship between resonance frequency of ultrasonic horn and reactive load by numerical calculation 变幅杆共振频率与力抗负载关系数值分析
Optimal Compensation Capacity of Reactive Power Load in Power System 电力系统无功功率负荷的最佳补偿容量
On reactive load compensation for transformer house of big waterworks 浅谈大型水厂变电站无功补偿设计的问题
This paper introduces technical features of power equipment, reactive load, harmonics harmful to power network and its preventive measures and techniques in metallurgical enterprises. The paper also compares functions and actual benefits of different reactive compensation and wave filtering devices. 介绍了冶金企业用电设备的工艺特点,用电负荷无功、谐波对电网危害的防治措施和技术,以及主要无功补偿滤波装置的性能比较和实际效益。
Forecasting of Short-time Reactive Load Based on Active Operation Patter 基于有功运行模式下的无功短期负荷预测
A Strategy for Substation Reactive Voltage Control Based on Active Reactive Load and System Voltage Sections 基于有功无功负荷和系统电压组合分段的变电站电压无功控制策略
The Influence of Reactive load Compensation in the Middle of Transmitting Line on Limit of Transmitted Power 输电线路中点无功补偿对传输功率极限的影响
Discussion and Practice of Dynamic Reactive Load Compensation for Yicheng AT Traction Substation 翼城AT牵引变电所动态无功补偿的探讨与实践
This paper presents a transformer substation automatic system based on computer. The system can adjust voltage and reactive load of transformer substation automatically by using local computer's software module of background monitor system without adding any hardware device. 提出了一种基于微机的变电站自动化系统,该系统在无需增加任何硬件装置的条件下就可在当地计算机后台监控系统中用软件模块来实现变电站的电压和无功的自动调节。
Computer-Based Automatic Control of Voltage and Reactive Load Optimization 基于微机的电压与无功优化自动控制
Talking about Design and Application of Indoor Series Air Reactor in the Reactive Load Compensation Equipment of City Converting Station 谈城区变电站无功补偿装置中的户内空心串联电抗器的设计和应用
The core of the automatic and adjustable reactive-load compensation equipment is to make the continuous adjustment of the compensating capacitor through the automatic adjustment. 自动可调无功补偿装置的核心是通过对电抗器的自动调整,达到对补偿电容器的连续调整。
The analysis indicates that large turbine-generator leading phase operation can improve the reactive power load distribution and the quality of power supply effectively. 试验分析表明,大机组发电机进相运行可有效改善电网无功潮流分布,提高电网供电质量。
Analysis of the Economical Influence of Reactive Load to Generators 浅析发电机无功负荷对发电经济性的影响
Brief Analysis of Reactive Load and Voltage Regulation 浅议无功负荷与电压调整
The quality of voltage has great influence on the stability of power network and the safe operation of electric equipments, and reactive power load flow is an important factor influencing voltage quality. 电压质量对电网稳定及电力设备安全运行具有重大影响,而无功潮流又是影响电压质量的一个重要因素。
The electric power system entails enough reactive power to meet the needs of consumers and the network. In order to insure voltage quality of electric network, reduce loss, and retain voltage stabilization, optimal reactive power dispatch is applied to optimize reactive load of electric network. 电力系统的负荷需要消耗大量的无功功率,为了确保电网的电压质量,降低损耗,保持电压稳定,电力系统采用无功优化的方法。
The combined sections method overcomed the disadvantage of method only considering active or reactive load and improved the accuracy. 这种组合分段的方法克服了仅按照有功或无功分段的缺陷,提高了控制的准确性。
This paper dissertates simply the forecasting of time to start peak, reactive load in process of climbing the peak. And numerical tests verified it. 就无功负荷高峰起始时间预测,爬峰过程中各时间点的负荷预测值,负荷变化绝对值的变化规律等几个问题进行初步研究,并以实例验证。
At present, the impact of reactive impulsive load on the LV power grid has become increasingly serious. 目前,电网中冲击性无功负荷对电网的影响日趋严重。
By analysis of the traditional inverter control principles, this paper presents a novel inverter control strategy aim at reactive load fluctuations. It makes full use of the original topology of the inverter circuit to achieve the dual control objectives of both grid connection and reactive power compensation. 通过对逆变电源传统控制原理的分析,本文提出了一种针对无功负荷波动的逆变器并网控制策略,该方案充分利用逆变电源原有的电路拓扑结构,达到并网和无功补偿的双重控制目标。
On the one hand ensures the maximum active output by maximum power tracking technology; on the other hand adjusts the reactive power supply of the grid to ensure the voltage stability with the change of reactive load. 一方面由最大功率跟踪技术确保光伏发电系统的最大有功输出,一方面调节大电网的无功供给,从而保证在无功负荷变化的情况下并网点的电压稳定。
In power system, there are a lot of reactive power consumption of equipment, the use of these devices will make a dramatic fluctuations in supply voltage, such as the impact of reactive power load: rolling machine, electric arc furnaces, electric and railway. 在电力系统中,存在着消耗大量无功功率的设备,这些设备的使用会使供电电压产生剧烈的波动,例如冲击性的无功功率负载:轧钢机、电弧炉、电气化铁道等。
A large number of reactive power load in system running will reduce the power factor, increase the loss of line voltage and power loss, and it will have a serious impact on the economic benefits of power enterprises. 系统运行中大量的无功功率将降低系统的功率因数,增大线路电压损失和电能损失,严重影响着电力企业的经济效益。
The design of var compensator is becoming more and more important due to increase in reactive load and nonlinear impact load in the electrical network. 因电网无功负荷的增加和大量非线性、冲击性负荷的使用,使无功补偿装置的设计变得越来越重要。
Through in the power system reactive power and reasonable allocation of reactive load for effective compensation of power quality, safety and economic behavior of the system operation perfect unifies in together. 通过在电力系统中合理配置无功电源及对无功负荷进行有效补偿,使电能质量、系统运行的安全性和经济性完美的结合在一起。
Capacitor by compensating reactive power on bus can reduce the reactive power flow in the network to keep the local balance of reactive power load and reach the purposes of reduced network losses and improved the voltage quality. 电容器投切通过补偿节点无功功率,减少无功功率在网络中的流动使无功负荷就地平衡,以达到改善电压质量和降低网损的目的。
At present, the reactive load, especially the impulsive reactive load, it not only increases power loss but also seriously deteriorates the power quality of customers. 目前,电力系统存在无功补偿容量不足,而系统中又存在不断增加的无功负荷,特别是冲击性无功负荷,不仅增加了损耗,而且严重影响了用户端的电能质量。
However, there are a large number of reactive power load existing in the power system that are from the power lines, power transformers and electrical equipment users. 但电力系统中存在着大量的无功负荷,这些无功负荷来自电力线路、电力变压器以及用户的用电设备。