该系统可以避免三相不平衡负载对逆变器输出电压的影响。
This system can avoid the influence that three-phase imbalance load towards the output voltage of inverter.
超载降电压,车载逆变器输出电压值与输出频率精确稳定。
Overload to decline electric voltage , the car carry negative change machine output electric voltage …
通过对逆变器输出电压信号的变换,得到逆变器输出电压信号的数字模型。
On processing the inverter voltage signal, the model of inverter voltage signal is got.
结果表明,死区效应引起了逆变器输出电压波形畸变,引起了电机电流波形畸变和转矩脉动。
The results indicate that the dead time effect distorts inverter output voltage and current waveform and increases torque ripples of the motor.
采用TI公司生产的TMS320F240型DSP对光伏逆变器输出电压波形进行数字控制。
This thesis use TMS320F240 DSP belonging to TI Company to control system output voltage waveform. Chip characteristics and control circuits are described.
为了降低逆变器输出电压的谐波,简单且实用的方法是在逆变器的交流输出侧加装l C滤波器。
In order to reduce total harmonic distortion factor of the inverter's output voltage, adding LC filter to inverter's output is a simple and practical method adopted extensively currently.
本文介绍电压逆变器的原理,分析带上磁滞同步电动机这一负载后逆变器输出电压电流波形畸变的原因。
It introduces the principle of voltage inverter, analyzed the reason of distortion of output voltage and current wave form, as it is loaded with hysteresis synchronous motor.
通过对逆变器基准正弦波直流分量的高精度数字调节,相应调节逆变器输出电压直流分量以抑制直流环流。
By digital adjustment with high precision on the DC bias of reference sine wave, the DC bias contained in inverter output voltage can be adjusted to restrain DC circulating current.
改进后逆变器输出滤波器的截止频率可以取较高值,保证足够的控制系统带宽,有效提高逆变器输出电压波形质量。
The cut-off frequency of improved inverter output filter can be set higher to ensure the bandwidth of control system and improve the waveform quality of inverter output voltage.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内,达到抑制噪声和机械振动的目的。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
为改善级联型多电平逆变器输出电压波形质量,对通过控制逆变单元开关角实现级联多电平逆变器谐波控制的方法进行了分析研究。
In this paper, the means of harmonics control by selecting switching angles are analyzed for improving quality of output voltage in cascaded multilevel inverter.
针对数字控制技术的特点,分析了在选择性谐波消除法的理论计算结果与实际开关角数字控制结果出现偏差时,对逆变器输出电压谐波含量的影响。
This paper analyzes the influence of the error between the calculated results by selective harmonic elimination and the digit_controlled results on the output of inverter.
SPWM逆变器是UPS系统的核心部件,要求它具有高质量的输出电压波形。
The CVCF-SPWM inverter is the core of a UPS system which required high quality output voltage waveform.
仿真和实验结果证实了该逆变器具有开关频率固定,输出电压波形质量好,非线性负载适应能力强等优点。
The simulation and experimental results illustrate advantages of the inverter:fixed switching frequency, high output-voltage performance, and strong nonlinear load adaptability, etc.
实验结果表明所提出的方案简单可行,适用于纯正弦输出的电压源逆变器。
Experimental results verified that the proposed scheme has the advantage of simplicity and feasibility. It can be applied to pure sinusoidal output Voltage Source Inverter.
提出了一种新型三相逆变器输出滤波器,它能有效地减少输出电压和电流中的开关谐波分量。
A new inverter output filter is presented. It can reduce efficiently the output voltage and current switching harmonic.
并采用优化的SAPWM调制信号,提高了直流电压的利用率,并能有效地抑制逆变器输出的谐波电流。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
以逆变器输出的电压和220v的差值作为控制信号。设计控制器根据控制信号改变直流变换器和三相可控整流的PWM控制信号。
The difference of output voltage of inverter and 220v is set as control signal, controller change the PWM signal to regulate buck-boost converter and three-phase rectifier.
根据SPWM的基本原理与付立叶级数理论,建立了SPWM电压型逆变器输出波形的数学模型。
Based on SPWM basic principle and Fourier series theory, the mathematical model of output waveform of SPWM voltage source inverter is built.
介绍了DCAC系列智能电源逆变器的功能,软件PWM技术及其交流电压输出调制技术。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology.
提高直流电压利用率可以提高逆变器的输出能力。
Increasing the efficiency of DC voltage can be helpful to increase the output voltage of the inverter.
本文详细分析了在异步调制下,直流电压的二次脉动对逆变器输出电流以及电机转矩的影响。
This paper analyses the influence of the rippled DC voltage to the output voltage of the inverter and the motors.
在分析一种低脉动输出电压的谐振d C环逆变器原理的基础上,对谐振环的谐振阶段的损耗进行了分析与近似计算。
On the base of the theory of lowly pulsant output resonant DC-link inverter, the loss in the resonant phase of the resonant DC-link is analyzed and almost calculated.
本文采用电压反馈的闭环控制方式,设计完成了数字PID调节器,使逆变器输出稳定的正弦波。
The paper takes advantage of a single close-loop control method based on voltage feedback, and enables the inverter to produce steady sine waves by the digital PID adjuster designed.
实验结果表明,利用该方法设计的无差拍控制正弦波逆变器系统稳定性好、输出电压波形畸变率低,具有一定的实际应用价值。
The experimental results prove that the sine wave inverter designed by this method have good stability and high quality output voltage and can be applied in practice.
文章中首先分析了逆变器的拓扑结构以及在直流端电压比不同的情况下的输出电平数。
First, the topology of the inverter and different output voltage level numbers in the situation of different voltage value ratio of two DC power supplies are analyzed.
为改善逆变器系统在严重不平衡负载情况下输出电压的对称性,文中提出一种新颖的控制策略——旋转坐标系下的PIR - P双环控制。
This paper presents a new method that PIR-P dual loop control based on rotating coordinates to improve the output voltage symmetry of inverter under the serious unbalanced load condition.
AC电动机(M1)由逆变器(14)的输出电压驱动。
An AC motor (M1) is driven by the output voltage of the inverter (14).
AC电动机(M1)由逆变器(14)的输出电压驱动。
An AC motor (M1) is driven by the output voltage of the inverter (14).
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