English translation for "环电流"

circular current
ring current

Example Sentences:

	1.	Since fulvenes show no evidence of ring currents, the chemical shifts of the protons will be found in the normal definite region . 既然富烯不显示环电流存在的迹象，所以质子的化学位移仍然发生在正常的链烯区。
	2.	Reliable hysteresis current controlled dual buck half bridge inverter 一种可靠的滞环电流型双降压式半桥逆变电路
	3.	These improved hysteresis control schemes can ameliorate dynamic performance and decrease the tracking error of load currents 这两种改进的滞环电流控制方法，均能改善系统的动态响应性能，减小电流的跟踪误差。
	4.	There are many control strategies for three phase four leg inverter , such as spwm , hysteresis current control and space vector modulation 三相四桥臂的控制策略主要有spwm控制,滞环电流控制,空间矢量控制等。
	5.	The control way of hysteresis - current with good track performance for current is adopted and on the basis of matlab / simulink environment the simulation model of the rectifier is built up 采用电流跟踪性好的滞环电流控制方法，建立了基于matlab / simulink环境下的仿真模型。
	6.	The theory analyzes is verified by simuliation results . then , the control of voltage space vector method is explored based on instantaneous reactive power and ac motor drive theory 其次，论文对滞环电流控制方法进行了分析，指出了滞环电流控制所存在的缺点以及局限性，仿真验证了理论分析结果。
	7.	To guarantee the validity and speediness insimulation , the back - emf is generated using piecewise linear curves . in the double loop of control system , a pi controller is adopted in the speed loop and a hysteresis current controller is adopted in the current loop 为保证仿真快速性和有效性,模型采用分段线性法生成梯形波反电动势,系统采用双闭环控制:速度环采用pi控制,电流环采用滞环电流控制。
	8.	Adopting rotor field - oriented vector control methods , through which make the stator and the rotor magnetmotive forces can be kept orthogonal all along during operation of the bldcm , combining hysteresis current modulation ' s current control advantage and space voltage vector modulation ' s torque ripple attenuation advantage , then designing a sort of bldcm hysteresis current svpwm control method 摘要研究采用转子磁场定向的矢量控制方法使无刷直流电动机定、转子磁势矢量始终保持正交，结合滞环调制电流控制和空间电压矢量调制，设计了无刷直流电动机滞环电流svpwm控制方案。
	9.	The products is of high water hydrophobe device usedin suitable and has the characteristics of aging resistance , resistance , tracking resistance , and corrosive resistance . it can withstand high bent load , strong impact force fn12 - 12 series indoor use high voltage load switch fn12 - 12 and fn12 - 12r is of three phases indoor use ac high voltage load switch for breaking and making the circuit of 50hz , 12kv system under rated loading Fn12 - 12和fn12 - 12r组合电器是额定电压12kv额定频率50hz的三相高压开关设备用于分合负荷电流闭环电流空载变压器和电缆充电电流关合短路电流配装接地开关的负荷开关，可以承受短路电流
	10.	In order to avoid the current ripple and the high switch frequency of fixed - band hysteresis current controllers , two hysteresis controllers of change hystersis - band are proposed . one is the sinusoidal - band hysteresis current controller , the other is the adaptive hysteresis current controller based on fuzzy theory 由于常规的滞环电流控制器不能有效地防止负载电流脉动，并且存在着容易导致逆变器的开关器件的开关频率过高的问题，论文提出了两种变环宽滞环电流控制器结构，其一是正弦环宽滞环电流控制器，其二是模糊变环宽滞环电流控制器。

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