中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2014年
z1期
204-210
,共7页
光伏并网逆变器%TNPC并网逆变器%阻尼配置
光伏併網逆變器%TNPC併網逆變器%阻尼配置
광복병망역변기%TNPC병망역변기%조니배치
PV grid-connected inverter%T-type neutral point clamped (TNPC) PV grid connected inverter%damping configuration
根据T型中点箝位(T-type neutral point clamped，TNPC)型光伏并网逆变器拓扑结构建立端口受控的耗散哈密顿(port controlled Hamiltonian with dissipation，PCHD)数学模型。基于此数学模型，采用互联和阻尼配置无源控制(interconnection and damping assignment passivity- based control，IDA-PBC)方法设计控制器。介绍三电平空间矢量调制算法的原理及实现方法。仿真结果表明，该文设计的基于PCHD模型的TNPC型光伏并网逆变器无源控制器能够使光伏并网逆变器实现网侧单位功率因数、电流低谐波；同时，使并网逆变器具有良好的动态、静态特性。
根據T型中點箝位(T-type neutral point clamped，TNPC)型光伏併網逆變器拓撲結構建立耑口受控的耗散哈密頓(port controlled Hamiltonian with dissipation，PCHD)數學模型。基于此數學模型，採用互聯和阻尼配置無源控製(interconnection and damping assignment passivity- based control，IDA-PBC)方法設計控製器。介紹三電平空間矢量調製算法的原理及實現方法。倣真結果錶明，該文設計的基于PCHD模型的TNPC型光伏併網逆變器無源控製器能夠使光伏併網逆變器實現網側單位功率因數、電流低諧波；同時，使併網逆變器具有良好的動態、靜態特性。
근거T형중점겸위(T-type neutral point clamped，TNPC)형광복병망역변기탁복결구건립단구수공적모산합밀돈(port controlled Hamiltonian with dissipation，PCHD)수학모형。기우차수학모형，채용호련화조니배치무원공제(interconnection and damping assignment passivity- based control，IDA-PBC)방법설계공제기。개소삼전평공간시량조제산법적원리급실현방법。방진결과표명，해문설계적기우PCHD모형적TNPC형광복병망역변기무원공제기능구사광복병망역변기실현망측단위공솔인수、전류저해파；동시，사병망역변기구유량호적동태、정태특성。
ABSTRACT:Based on the control method of energy shaping and port controlled Hamiltonian with dissipation (PCHD), the model of the TNPC (T-type neutral point clamped) PV grid-connected inverter and its control were studied. Based on the model, the controller was designed by using the method of interconnection and damping assignment passivity-based control. It analyzed the principle and realization method of three-level space vector modulation algorithm. Simulation results show that the designed passive controller of TNPC PV grid-connected inverter can achieve unity power factor, the total harmonic distortion of grid-connected current is low, and the controller also makes the inverter have good dynamic and static performances.
