电路分析课程功率因数提高的案例教学研究

摘要

电路分析课程重理论、轻实践的教学模式在一定程度上限制了学员创新思维的培养.案例教学是理论联系实际的较佳方式,也是素质教育的有效手段.针对功率因数提高的教学内容,结合工程应用实际,给出了功率因数提高在独立电源供电系统和电力系统中的两个应用案例.独立供电系统以三相交流电源接异步电动机负载为教学案例;电力系统包括常见的就地补偿、变电站低压侧补偿和变电站中压侧补偿3个教学案例.详细介绍了功率因数提高的原理、应用案例的Simulink仿真以及案例教学的实施过程三部分内容.将其应用于教学中,不仅能加深学员对理论知识的理解,还能拓展学员的专业视野,对培养高素质新型军事人才有一定帮助.%The teaching model of " emphasis on theory,contempt for practice" for circuit analysis course limits students' innovative thinking training to a certain extent.Case teaching is the best way of linking theory with practice,and it is also an effective means of quality education.At present,the status of the lack supply and poor quality of the case library source affects the wide application of case teaching method.For the content of power factor improvement in circuit analysis course,combined with the actual application of the project,two application cases of the independent power supply system and power system for power factor improvement teaching are given.In the independent power supply system,three-phase AC power supplying asynchronous motor load is used for the teaching case.Power system includes three teaching cases which are local compensation,substation low-voltage side compensation and substation mid-voltage side compensation.In this paper,the principle of power factor improvement,application cases' simulation with Simulink and the implementation process of case teaching are introduced in detail.The teaching reform can not only deepen the students' understanding of theoretical knowledge,but also expand the professional vision of the students,hence it can help to cultivate high-quality military talents.