【摘要】 电子电力变压器EPT(ElectronicPowerTransformer)是采用电力电子变换技术实现电力系统中的电压变换和能量传递的一种新型变压器。阐述了EPT的基本理论,并对一种新的EPT实现方案进行了稳态特性仿真,以及4种情况下的动态特性仿真。结果表明,EPT可以保证原副方良好的电压、电流波形,具备良好的控制特性,并且具有电能质量调节器的功能,可以作为一种新型的电能质量调节装置。更多还原

【Abstract】 EPT (Electronic Power Transformer) is a new type of transformer,which realizes voltage trans-formation and power delivery in power system through power electronic conversion. The main principle of EPT is described and simulation of a new EPT scheme is carried out,in which its steadystate characteristic and dynamic characteristic in four conditions are involved. Simulative results show that EPT guarantees good voltage and current waveforms in both primary and secondary sides and has good control performance. It can be used as a new regulating device of power quality for its regulating function.更多还原