1) switching frequency
开关频率
1.
Selection of phase-shift SPWM switching frequency
载波移相SPWM开关频率的选取
2.
Hysteresis control has disadvantage of unstable switching frequency.
滞环控制方法存在开关频率变化不定的缺点。
3.
To reduce the switching frequency and current error of a static synchronous compensator (STATCOM) for reactive power compensation, a novel direct current control strategy is proposed.
提出一种适用于STATCOM的直接电流控制新方法以减小开关频率和电流跟踪误差。
2) switch frequency
开关频率
1.
Selection of switch frequency in direct current electromotor PWM modulation.;
极压仪中直流电动机PWM调速下开关频率的选取
2.
The DC-DC convertor features high switch frequency up to 1MHz using ultra-small inductors and ceramic capacitors.
应用PWM设计高可靠DC-DC变换器,其开关频率更高,可达1 MHz,这样减小了储能元件的尺寸,可采用陶瓷电容器,提高系统的可靠性,降低了成本。
3.
The reason of output current distortion is analyzed;and a new way to resolve the problem is put forward;it is controlling switch frequency changing in different sections according to system run state.
分析了引起输出电流畸变的原因,并提出可根据系统工况分段控制开关频率的方法来解决由这些原因引起的输出电流畸变。
3) Low switching frequency
低开关频率
1.
For solving the cross-coupling problem caused by low switching frequency a new closed-loop variable speed control system which is based on flux trajectory control and different from vector control was introduced.
为加大中压变频器出力,要求降低开关频率,这就带来了PWM波形谐波大的问题。
4) random pulse width modulation
随机开关频率PWM
5) fixed switching frequency
固定开关频率
1.
The fixed switching frequency of single P direct current control for the AC/DC stage and the classical dual-loop co.
根据其主电路的两级AC/DC/AC变换结构,分析了起传递能量桥梁作用的直流母线电容工作和谐波产生机理,提出了将两级PWM变换器分开控制的方案即前级变换器采用固定开关频率的单P环直接电流控制,后级变换器采用三角波调制的经典电压外环和电流内环的双闭环结构。
2.
In this paper, a current control mathematical model is established with fixed switching frequency for three-phase pulse width modulated (PWM) converter.
建立了三相电压型PWM整流器电流控制数学模型,输入电流在静止坐标系下实现了固定开关频率的解耦控制。
3.
As for a width self adapting current hysteresis loop control of three-level PWM diode-clamped inverter, this paper presents a novel approach to achieve a quasi fixed switching frequency control, having the advantages of easy control and high current response of current hysteresis loop control, by using a simplified algorithm.
在既保持电流滞环控制简单、电流响应快等特点的情况下,通过简单的算法,实现在三电平二极管中点箝位主回路拓扑结构上的准固定开关频率的电流滞环控制。
6) Constant switching frequency
恒定开关频率
1.
This paper improves the torque ripple with the constant switching frequency which is used to control the voltage vector.
本文提出一种恒定开关频率控制电压矢量来减少直接转矩控制中转矩脉动的新方法,该方案采用对转矩脉动进行最小化控制的思想,计算量少,容易实现。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
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