您要查找的是不是：
- The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when three phase unbalanced fault occurs in AC system. 当交流系统发生三相不对称故障时,忽略直流系统负序分量的准稳态模型将给交直流混合系统的仿真带来较大的误差。
- Is the stator three phase line voltage the same? And is it current zero? 定子三相电压是否相等?其电流是否为零?
- This paper proposes a control method for the three phase three wire VSR under the unbalanced system. 三相电网不平衡时,电压会存在负序分量。
- INTEREST: 10000 PCS OF THREE PHASE FOUR WIRE LOW VOLTAGE KILO WATT HOUR METER (10/40) A. 我公司求购三相低压电表，有意者请与我们联系！
- When thyristor is working, the thyristor needs a wide range tracking touch when it is in three phase adjusting voltage. 指出晶闸管三相全程调压工作时，晶闸管需要宽范围跟踪触发。
- Voltage unbalance of three phase ac distribution systems adversely affects power customers. 配电系统三相电压的不对称会对用户造成一系列不利影响。
- It is designed with outputs for a direct high current gate drive of an all N-channel power MOSFET three phase bridge with a maximum supply voltage of 38 V. 该产品可为全N通道功率MOSFET三相桥的直接大电流门极驱动提供输出,最大电源电压为38 V。
- The hard ware and soft ware of three phase DC resistance welding micro controller is introduced in this paper.The theory of voltage auto compensating is specified too. 介绍了三相次级整流阻焊微机控制器的硬件结构及设计、软件设计及流程,并对网压补偿原理作了较详细的介绍。
- Note 1 Single display the three phase total active power. 注1:单屏显示三相总有功功率。
- Li Jinfeng,Li Guangkai,Zhao Chengyong,et al.Control strategy for VSC-HVDC system under unsymmetry of three phase voltage[J].Power System Techology,2005,29(16):16-20(in Chinese). [9]李金丰;李广凯;赵成勇;等.;三相电压不对称时带有电压源换流器的HVDC系统的控制策略[J]
- Three phase wiring saves 50% of power compared with one-phase. 三相电源比单相电源可省电逾50%25之多。
- unbalanced voltage of power system 电网电压不对称
- Minsky divided the process into three phases. 明斯基将该过程划分为三阶段。
- three phase unbalance 三相不平衡
- This control method was applied to a three phase AC/DC/AC conversion system. 该控制思想在三相AC/DC/AC系统中进行了实验验证。
- A phase A fundamental positive sequence voltage selected unit based on LPF substitutes for the original ip-iq PLL to ensure exact voltage of A phase is selected even in case of imbalance three phase voltage. 并采用一种新颖的基于低通滤波的A相正序电压提取单元来代替原始的ip-iq检测法的PLL锁相环,在三相电压畸变情况下仍可以正确提取A相正序电压,以精确检测出谐波和无功电流。
- Finally, an expert system is proposed to establish the rephasing strategy of laterals and distribution transformers to improve the imbalance of the three phases of the unbalanced distribution feeders. 本论文以具有启示性规则之专家系统，推导分歧线及配电变压器之相位调整策略，以改善配电馈线三相不平衡。
- In this design, we will present a kind of transducer based on the DSP, which uses SPWM control to realize the three phases AC voltage output. 在本文中提出一种基于数字信号处理器(DSP)的变频器,利用SPWM控制技术,实现变频器的三相交流电压输出。
- Eventing is an equestrian sport consisting of three phases. 综合全能马术赛，包括三个阶段，第一，越野比赛。
- Electrical characteristic of unbalanced voltage digital interface circuits(EIA) 非平衡电压数字接口电路的电气特性(电子工业协会)
