单相双绕组变压器瞬态过程分析的建模与仿真摘 要变压器在电力网络结构中是，电力变压器有很大的容非常重要的电力设备，在出现问题时，系统受到大的干扰，电力系统供电可能会中断，对居民用户用电也造成了不便。因此通过变压器的稳态和瞬态过程的运行原理，可以对变压器进行经常性维护，对于变压器的各种情况下的运行也有一定的提高，因此对实际情况下的变压器动态研究是十分必要的。本文以单相双绕组变压器为研究对象，对变压器中磁链、电压和状态方程在瞬间过程中的建立过程进行了推导，对单相双绕组变压器在空载合闸、负载运行、突然断电等的瞬态情况下能量的变化情况进行了分析并根据单相双绕组变压器在变压器二次短路、带纯电阻负载、空载合闸的三种三种可能性进行了瞬态过程的仿建立数学模型，并在 MATLAB中进行了仿真实验，由建模仿真过程比较得到了单相双绕组变压器瞬态过程的影响因素。关键词：电力变压器；瞬态过程；状态方程；仿真试验AbstractOnce the power transformer faults, it will bring great disturbance to the power system, even power system power outages, it will greatly affect the industrial production and the normal life of residents electricity, therefore, by studying the working principle of the steady state and transient state of the transformer, the transformer can be effectively maintained and the further expansion of the accident is avoided. It can also provide a theoretical basis for improving the design and manufacture level of power transformer and the mechanism of operation and failure.The single phase double winding transform is studied, the establishment process of flux, voltage and state equation of single phase double winding transformer is studied, the changes of current and voltage in single-phase double winding transformer under no-load switching and sudden power failure are analyzed, the transient process of single-phase double winding transformer is analyzed under three conditions of no-load closing of transformer, pure resistance load and two...
