正弦交流电教学中的解题技巧  

Skills for Problem Solution in Sinusoid Alternating Current Teaching

作　　者：徐志跃[1] 

机构地区：[1]北京航空航天大学电工电子中心,北京100191

出　　处：《电气电子教学学报》2011年第3期94-96,共3页Journal of Electrical and Electronic Education

摘　　要：正弦交流电路中,由于各元件上的电压、电流之间存在相位差,借助于相量图可以清楚地描绘出各个电压、电流之间的大小和相位关系。文中列举了五个典型的交流电路的例题,通过相量图的分析,建立了清晰的解题思路,化简了许多繁琐的数学计算和突出了物理概念,达到了事半功倍之效。Unlike DC, it is often confused when analyzing sinusoid alternating current circuits, because of phase differences among the voltages and currents. By means of the phasor diagram, amplitudes and phase relationships of all voltages and currents can be described clearly. Five typical AC examples are listed. With the aid of phasor diagram, one can establish the clear method for problem solution, simplify the com- plicated mathematical computing, stress the physical concepts and improve the efficiency.

关 键 词：正弦交流电 相量图 相位差 

分 类 号：TM133[电气工程—电工理论与新技术]