unity power factor meaning in English
单位功率因数
Examples
- Single - phase transformers up to 600 va , 5060 hz , unity power factor
600伏安以内、 5060赫兹、功率因素为1的单相变压器； - Single - phase transformers up to 600 va , 5060 hz , unity power factor and tests for transformer ( up to ip4x )
600伏安以内、 5060赫兹、功率因素为1及测试变压器用（ ip4x以内）的单相变压器； - Basic calibration of a wattmeter will include tests at rated voltage and frequency with 5 different current settings on the current range ( unity power factor )
功率表的基本校正工作包括对额定电压及频率在其电流量程(功率因数为一)的五个不同电流值进行测试。 - The result of simulation for the closed - loop system in the matlab illustrates that the system can provide unity power factor not only in ideal condition but also in the case of errors in missing of some current
研究表明系统在理想情况下能实现单位功率因数而且在某相电流误差信号丢失的非理想情况下仍然能实现单位功率因数控制。 - With promulgation and obliging actualization of iec 1000 - 3 - 2 etc . international standards , power factor correction ( pfc ) technique become a hotspot of research in power electronics field . based on average current mode , the paper introduce the design and implementation of a fully digital controlled single - phase boost power factor corrector with fast response . the control - loop circuit is realized using digital control and the corrector can tend to unity power factor , lower current harmonics and high transfer efficiency
本文在平均电流模式控制的有源功率因数校正技术的基础上，设计了一种控制电路基于数字信号处理器( dsp ) 、主电路采用boost变换器拓扑结构的全数字单相功率因数校正器，用数字电路代替传统的模拟电路来实现对整个回路的控制，最终使得校正器具有输入功率因数接近于1 、低电流谐波以及高转换效率的特性。