1) virtual capacitor
虚拟电容
1.
Considering the inherent dc-block characteristic of the capacitor,a DC injection control scheme was proposed based on virtual capacitor with the grid current fed forward to duty ratio from the view point of control theory,which can effectively mitigate the DC component.
借鉴电容隔离直流的特性,从控制理论角度出发,提出一种基于虚拟电容的并网逆变器直流注入控制策略,通过并网电流前馈至占空比实现虚拟电容,有效地消除了并网电流中可能存在的直流分量。
2) virtual capacity
虚拟容量
3) virtual resistor
虚拟电阻
1.
In this paper,control methods based on damping resistor and virtual resistor are presented.
针对上述问题,提出了可以根据系统要求及成本因素,采用抑制谐振电阻或虚拟电阻的策略避免谐振,并对滤波参数计算及控制策略进行了分析,最后仿真结果证明了能够减小高次谐波并具有较好的稳定性。
2.
To suppress reso- nance of LCL filter and improve stability of system,it is pre- sent that a voltage and current double loops control strategy based on virtual resistor concept.
为了提高系统的稳定性,抑制滤波器的谐振,在双闭环控制的基础上提出了一种基于虚拟电阻思想的控制策略。
3.
In order to assure stable operation of system, in this paper a controlling strategy based on virtual resistor concept is presented to make controlling arithmetic replacing function of damping resistor.
但考虑到LCL滤波器存在谐振问题,如果控制策略不合适会导致系统不稳定,且增大输入电网电流的谐波畸变率,提出基于虚拟电阻思想的控制策略。
4) virtual electricity quantity
虚拟电量
1.
Among them the compensation method which deducts the total variable costs from the "virtual electricity quantity" is emphasized.
对电力市场环境下发电机组存在的4种情况进行分析,提出了基于发电侧电力市场的合理经济补偿方法,特别是采用从"虚拟电量"中扣除相应总变动成本的合理经济补偿方法,满足市场自主报价竞争的需要,实现资源的优化配置。
5) virtual elevator
虚拟电梯
1.
Development and Application of PLC Serial Communication in Virtual Elevator System;
PLC串行通信在虚拟电梯系统中的开发与应用
2.
Development and application of virtual elevator system;
虚拟电梯系统的开发与应用
3.
The elevator model s functional design is achieved based on PLC controller and the virtual elevator system s hardware and software is realized with the core of computer.
提出了一种面向教学和科研的高性能电梯控制仿真系统的实现框架,重点研究了基于PLC控制的电梯仿真模型功能设计和以计算机为核心的虚拟电梯系统的硬件和软件实现。
6) Virtual Home Appliances
虚拟家电
补充资料：虚拟
1.设想;虚构。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条