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.
SPWM调制是提高逆变电源电压利用率和减少谐波分量的重要方法。
SPWM modulation is the important way to improve the invert power supply voltage efficiency and reduce the harmonic component.
而空间矢量法谐波特性好、电压利用率高、控制方法简单便于数字实现。
SVPWM has low harmonic and high voltage utilization. The control method is simple and easy for digital realization.
SPWM变换器中的死区设置使变换器输出电压谐波含量增加、电压利用率和可靠性降低。
The dead time control in SPWM converter increases the harmonic component in voltage output and decreases the voltage utilization and reliability of converters.
同时该拓扑还保证了输入电流连续,减小了对直流源使用寿命的影响,提高了直流侧电压利用率。
Continuous input current is ensured, which mitigates the impact on DC source and improves DC voltage utilization.
在分析空间矢量调制(SVPWM)基本原理的基础上,证明了SVPWM具有最大的直流电压利用率。
By analyzing the base principle of space vector pulse width modulation (SVPWM), it is proved that the DC voltage utilization.
SVPWM物理概念清晰、算法简单、对直流电压利用率高,易于实现数字化,是现在研究的热点之一。
Because the conception of SVPWM is clear, the arithmetic is simple, and it has high utilization of DC voltage, especially ease of being digitized, SVPWM is now popular in research.
在分析电压空间矢量调制(SVPWM)基本原理的基础上,证明了SVPWM具有最大的直流电压利用率。
By analyzing the basic principle of voltage space vector pulse width modulation (SVPWM), it is proved that the dc voltage utilization ratio of SVPWM is the highest.
本文将三次谐波注入的PWM控制方案应用到四桥臂三相逆变器中,可以带非对称负载且具有较高的电压利用率。
The PWM control strategy with 3-th harmonic in addition is presented for four-leg three-phase inverter, the inverter can deal with unbalanced load and has a high utilization of dc bus voltage.
文中还分析了采用三维SVPWM时逆变器的电压利用率,给出了基于所提算法和其它3种调制方法的四桥臂逆变器仿真结果。
Moreover, the voltage utilization ratio of the inverter with 3D-SVPWM is analyzed, and the simulated results of the four-leg inverter with the four above-mentioned methods are compared.
针对传统Z源逆变器的直流升压因子较小、启动冲击严重、直流侧的电压利用率较低等缺点,提出了一种改进型的Z源逆变器拓扑。
Aiming at the low DC boost capacity, serious starting-up inrush current and low DC voltage utilization of traditional Z-source inverter, an improved topology of Z-source inverter is proposed.
将这种过调制算法应用于永磁同步电机矢量控制系统中,提高了逆变器直流母线电压利用率,实现了对永磁同步电机弱磁运行区域的扩展。
The overmodulation algorithm is applied in the PMSM vector control system to increase output voltage of SVPWM inverter, and to extend the PMSM operation range.
实验结果证明,系统电动机电流的谐波失真较小,直流母线电压利用率比常规的正弦波脉宽调制(SPWM)有了较大的提高,功率器件的开关损耗较小。
Test results proved that the motor had lower current harmonic, more efficient use of DC supply voltage than SPWM, less switch loss of power switch.
SVPWM具有较高的直流电压的利用率,开关损耗小,从而实现了高性能的逆变输出。
SVPWM technique have many good qualities, such as less pulsating torque, high usage of DC bus voltage, less switching loss, better high-speed regulation performance.
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.
在建模过程中,以SOFC的燃料利用率为模型的输入,电压和电流为模型输出。
The fuel utilization of the SOFC is taken as the input, the voltage and current density as the outputs of the neural network model.
在建模过程中,以SOFC的燃料利用率为模型的输入,电压和电流为模型输出。
The fuel utilization of the SOFC is taken as the input, the voltage and current density as the outputs of the neural network model.
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