讨论了基于双电压控制的矩阵变换器的开关状态及控制函数,提出了原点开关概念和开关状态控制函数表。
The switch state and control function of Matrix Convetter based on two-voltage control technique is researched, Source key is presented, and the control table of switch state is given.
本文设计了电流闭环和电压闭环的双闭环控制系统。
This paper designed a double close loop control system based on current and voltage.
提出了一种基于三相电压型PWM逆变器的电压电流双闭环控制方法。
This paper puts forward a voltage and current double closed-loop controlling method based on three-phase voltage source PWM inverter.
在引入了跨导线性原理后,利用混合跨导线性回路完成了对电压跟随器的设计,进而得到了双极管型电流控制传送器。
After introduction of the tranlinear loop principal, the BJT current controlled conveyor has been designed by using mixed tranlinear loop voltage follower.
该文提出了一种基于双电压合成矩阵变换器的闭环控制方法。
A closed loop control method for the matrix converter based on double line to line voltage synthesis algorithm is proposed in this paper.
夺获控制型双腔起搏器的常规工作电压明显低于普通双腔起搏器。
The programmed working voltage of capture control DDD pacemaker is significantly lower than that of the common DDD pacemaker.
其次,本文采用直流电压外环、电流内环的双闭环控制方法,既保证了逆变器输出的静态误差为零,又保证了逆变器良好的输出波形。
Secondly, the DC voltage loop and inner current closed-loop control method, both to ensure zero static error of the inverter output, but also to ensure that the inverter output waveform.
前者在常规的采用电压外环、电流内环的双闭环控制基础上,搭建数字锁相环、数字滤波器。
Digital PLL and digital filter are built based on conventional double closed-loop control which contains voltage loop and current loop.
在分析了其他变频器的局限性后,指出了双PW M变频器是交流励磁的最佳电源方案,详细地讨论了电压型双pw M变频器的工作原理与控制策略。
In this paper, a back-to-back PWM converter is considered as the optimum scheme of ac excitation power supply and its operation principle and control strategy are discussed in detail.
可选型号:模拟电压控制模式,双功能模式,转换器和移相器操作有可选输入。
Optional models: Analog Voltage controlled models. Dual function models, selectable input for either translator or phase shifter operations.
目的观察夺获控制功能对双腔起搏器工作电压和安全性的影响。
Objective To evaluate the effect of capture control function on programmed pacemaker output voltage and capture safety.
该系统包含升压和逆变两个环节,均采用电压外环、电流内环的双环pwm控制方式。
The two parts both adopt double loop PWM control mode which consists of outer voltage loop and inner current loop.
对电源系统进行分析,选择合适变量设计一个稳定性好、动态响应快的电压电流双闭环控制。
Then this paper chooses the suitable variable to design the voltage and current double closed-loop controller, which has well stability and fast transient response.
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.
为克服高频脉冲交流环节逆变器存在的电压过冲现象,本文提出和研究了单极性、双极性移相控制策略。
To overcome voltage stress existed in the inverter with high frequency AC pulse link, single polarity and double polarities phase shifting control strategies were proposed and studied in this paper.
TL 494芯片功能强,工作频率高,通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
在电压型PWM整流器的控制中,广泛采用在同步旋转坐标系下的直接电流控制方法和双闭环控制结构。
In the control of voltage source PWM rectifier, direct current control and dual close loop control structure ind-q synchronous reference frame are widely adopted.
基于电流和电压的双环控制策略,研制了一台输出功率300w的功率因数校正电源样机。
A 300w experimental prototype of power supply with power-factor-correction function based on dual-loop control strategy is presented in this paper.
数字化逆变器的控制采用TMS320F 240芯片来实现,在其软件中采用了用于电流预估计的PI控制算法和电压电流的双环控制。
The digital inverter is controlled by a TMS320F240 DSP chip, which applying the improved digital PI control arithmetic of the current prediction and the double control loops of voltage and current.
在上述基础上,本文设计了一个具有机端电压反馈和转速偏差反馈的双环非线性PID控制器。
Based on forenamed knowledge, the paper designs a double-loop NPID excitation controller, which has parallel feedback of voltage and error of rotate-speed.
功率变换器主电路采用电压电流双闭环瞬时值反馈控制方式,电容电压和电流瞬时值控制环提高了系统的稳定性、硬特性、稳态特性及动态特性。
The voltage and current real-time feedback control method is adopted, which improves the stability, the stiffness, the static characteristics, and the dynamic characteristics of the system.
逆变器瞬时电压PID控制与电压电流双环控制相比,在电路结构、成本等方面更具优越性。
The instantaneous voltage PID control inverter has advantage on circuit and cost, compared with voltage current dual-loop control inverter.
根据需要电路电流过流保护的特点,重点介绍了滤波电感电流反馈做内环,输出电压做外环的双环控制策略。
Because the circuit needs current overload protect, a double loop strategy , with current feedback of filter inductance as inner loop and output voltage as outer loop, is studied.
介绍了一种基于零电压软开关技术和双闭环控制模式的大功率等离子喷涂高频开关电源。
A novel plasma spray power supply based on ZVS soft-switching technology and double close loop control mode is presented in this paper.
该文对零输出换相策略、电压增益及开关动作顺序进行了详细的分析,并与双电压合成控制策略下共模电压的最大瞬时值进行了对比。
The paper analyzes in detail the synthetical method, the voltage gain and the switch action sequence of matrix converter based on the zero-output commutation strategy.
该方案采用电感电流和输出电压瞬时值双环控制,以提高输出稳定性和动态响应。
To improve the steady state operation and dynamic response, a dual-loop control strategy which incorporates the inductor current and the instantaneous output voltage has been used.
每台航空静止变流器模块均为电压、电流双环控制,通过公用电压调节器稳定并联系统的输出电压及频率,同时产生统一的模块电流给定信号。
Each module is controlled by voltage-current two closed-loops. The common voltage loop controls system output voltage & frequency, and generates a common reference current signal.
送丝速度通过两个PI调节器进行双闭环控制,分别进行电枢电压反馈和电弧电压反馈。
Two PI adjustors were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
送丝速度通过两个PI调节器进行双闭环控制,分别进行电枢电压反馈和电弧电压反馈。
Two PI adjusters were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
送丝速度通过两个PI调节器进行双闭环控制,分别进行电枢电压反馈和电弧电压反馈。
Two PI adjusters were applied for wire feeding velocity control, one performed motor armature voltage feedback, the other one executed arc voltage feedback to determine the given velocity.
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