The system consists of two modules: gating pulse module and high voltage modulation module.
此系统分为选通脉冲和高压调控两个模块。
With 1kHz voltage modulation and harmonics detection, residual amplitude modulation (RAM) noise were carried out experimentally.
从理论和实验上研究了残余幅度噪声（RAM）对谐波探测的影响。
Test results show that the continuous control method during over-voltage modulation period features simplicity, high efficiency and excellent control effect.
试验结果表明，过调制区连续控制方法简单、高效、控制效果良好。
Classical direct torque control method adopts the technique of 6 polygon flux linkage voltage modulation. It will generate torque pulsation and harmonic interference.
传统直接转矩控制技术采用的六边形磁链电压矢量调制方法，这会引起较大的转矩脉动和谐波干扰。
As a backbone of the Northwest power Network, Liujiaxia Hydropower Plant plays the roles of generate electricity, peak modulation, frequency modulation and voltage modulation.
刘家峡水电厂在西北电网中主要承担发电、调峰、调频和调压任务，是西北电网的骨干电站，在西北电力系统中处于十分重要的地位。
This control system is composed of AT89C52 as a center the temperature sensor and module of voltage modulation. The working state and temperature are displayed on liquid crystal display.
AT 89 C52单片机作为系统的核心处理器，结合温度传感器、单相调压一体化模块来实现对清洗消毒机的程序化控制，并通过液晶显示屏实时显示系统工作状态、温度参数等信息。
The7years 'applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
7年的使用实践表明，直流脉动电压频率调制技术对抑制声谐振现象十分有效。
DEMODULATION, The process of retrieving information (modulation) voltage from a modulated carrier voltage.
解调，从载波电压中获得调制电压的处理过程。
With the digital PI modulation the output voltage of the power supply is very precision and stabilization.
采用数字PI调节，提高了稳态时输出电压的精度和稳定性。
Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。
Pulse width modulation is widely used in voltage regulators.
脉宽调制技术是广泛应用于稳压器。
The system can be used to measure the voltage responsivity and detectivity of infrared detector at different modulation frequency with rapid speed and high accuracy, it meets the need of measurement.
该系统可以自动测试不同调制频率下红外探测器的电压响应率和探测率，能够快速准确地完成测试任务，满足了测试要求。
The control scheme gets the switch control signal of inverter with the space voltage vector modulation technology.
系统采用空间电压矢量脉宽调制技术得到逆变器的开关控制信号。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
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。
A simplified algorithm three-phase voltage source PWM rectifier for space vector modulation was presented.
提出了应用于三相电压型脉宽调制整流器的空间矢量简化算法。
The pulse width modulation character of voltage drive -type pulse width modulator TL494 is introduced. The applicable situation of TL494 in semi -bridge alternate switch power is also analyzed.
介绍了电压驱动型脉宽调制器件TL494的脉宽调制特性，并对其在半桥变换开关电源中的应用情况做了分析。
Envelope detection and parameter estimation of each modulation component are the main parts in measurement of voltage fluctuations and flicker.
包络线的检出和调制分量参数估计是电压波动与闪变检测的主要内容。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
通过采用时变调制比的方法，可以消除不对称输入电压的影响，从而获得对称正弦输出电压或输入电流。
The detecting techniques of harmful currents, the modulation methods of novel UPFC and the balancing control of capacitors voltage on DC link are studied thoroughly.
对有害电流检测方法、新型UPFC的变换器的调制方法、新型UPFC直流侧电容电压的平衡控制方法等进行了深入研究。
The discrepancy between the actual output voltage and expected output voltage of the matrix converter is calculated and added to the switch modulation matrix in the next sampling period as feedback.
该方法将实际输出电压和期望输出电压的比较偏差作为负反馈加到下一个采样周期的开关调制函数矩阵中。
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.
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。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology.
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。
Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.
改变变频器的输出电压或输出电流有二种不同的方法，即PAM脉冲幅值调制控制和PW M脉冲宽度调制控。
Proved by the theoretic deriving and simulation result, the COFDM modulation technology is well suitable for high voltage PLC with a high transmission speed, low BER and high reliability.
理论推导和仿真结果表明，COFDM调制技术适合在高压电力线载波通信中使用，在明显的提高数据传输率的同时降低误码率并增强系统可靠性。
By analyzing the base principle of space vector pulse width modulation (SVPWM), it is proved that the 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。
This calculated voltage is then synthesized using Space Vector Modulation.
然后用空间矢量调制法来将计算出来的这个电压进行合成。
It is convenient to change the optical intensity of the sidebands by tuning the DC bias voltage while the microwave modulation frequency and power are fixed.
当微波调制频率及功率一定时，可方便地调节直流偏置电压来改变各阶光波的强度。
The device has several advantages such as adjustable wide current range, controllable wide voltage range, circuit interface compatible with TTL, small volume and easy modulation.
该器件不仅输出电流可调范围宽、允许工作电压变化范围大、电路接口与TTL兼容，而且体积小、调节方便。
During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.
在一个调制周期内，可预先求出几个死区电压矢量的合成矢量，用控制软件的方法实现对参考空间电压矢量的校正，从而消除死区效应。
The single phase H-bridge inverter can generate common-mode voltage due to the sine pulse width modulation(SPWM)and vector controller.
采用脉宽调制和矢量控制的单相H桥逆变器会产生共模电压，后者会对逆变器、电机及其相关设备产生危害。
应用推荐