【摘要】 在逆变器系统中,滤波电感对死区等因素造成的波形畸变能够有效地抑制。对于大功率的逆变器,当滤波电感及并机电抗都很小时,死区等因素可引起很大的谐波环流。研究了逆变器的基本原理,描述了谐波扰动的双环控制模型,介绍耦合电感抑制谐波环流的方法。在此基础上建立了无互联线逆变电源并联的数学模型。研究表明耦合电感能有效的抑制谐波环流,电压电流双环反馈控制有效的抑制并联逆变电源间的环流。更多还原

【Abstract】 In the inverter system,the filter inductance existence can effectively inhibit the waveform distortion caused by such as the dead zoon factors.When filter and mechanical and electrical inductance resistance are all very small in the high-power inverter,the dead-zone and other factors may cause a lot of harmonic circulation.The basic principles of the inverter,and the harmonic disturbance model based on the dual-loop control were described,and the coupled inductors to inhibition the harmonic suppression circulation were introduced in this paper.The wireless mathematical model of parallel inverter was created based on the above principles.The studies show that the coupled inductors can effectively inhibit the harmonic circulation;voltage and current dual-loop feedback can effectivly inhibit the circulation between the parallel inverters.更多还原