电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2014年
2期
36-39,44
,共5页
冉岩%宋蕙慧%曲延滨
冉巖%宋蕙慧%麯延濱
염암%송혜혜%곡연빈
光伏发电%逆变器%哈密顿系统%能量成型控制
光伏髮電%逆變器%哈密頓繫統%能量成型控製
광복발전%역변기%합밀돈계통%능량성형공제
photovoltaic power generation%inverter%Hamiltonian system%energy-shaping control
采用端口受控哈密顿(Port-Controlled Hamiltonian)和能量成型的控制方法,研究了光伏并网发电系统的建模与控制问题。将非线性的光伏并网发电系统模型转化为哈密顿系统模型,根据系统控制器的设计目标,确定了系统期望的平衡点,利用互联和阻尼配置方法,设计了系统控制器。仿真结果表明,该方法能使所设计的逆变器运行于单位功率因数,结构简单,系统稳定性好。
採用耑口受控哈密頓(Port-Controlled Hamiltonian)和能量成型的控製方法,研究瞭光伏併網髮電繫統的建模與控製問題。將非線性的光伏併網髮電繫統模型轉化為哈密頓繫統模型,根據繫統控製器的設計目標,確定瞭繫統期望的平衡點,利用互聯和阻尼配置方法,設計瞭繫統控製器。倣真結果錶明,該方法能使所設計的逆變器運行于單位功率因數,結構簡單,繫統穩定性好。
채용단구수공합밀돈(Port-Controlled Hamiltonian)화능량성형적공제방법,연구료광복병망발전계통적건모여공제문제。장비선성적광복병망발전계통모형전화위합밀돈계통모형,근거계통공제기적설계목표,학정료계통기망적평형점,이용호련화조니배치방법,설계료계통공제기。방진결과표명,해방법능사소설계적역변기운행우단위공솔인수,결구간단,계통은정성호。
Based on energy-shaping and port-controlled Hamiltonian control method, the model and controller of PV grid-connected system are presented. Transforming the nonlinear system of photovoltaic power generation into a Hamiltonian model and according to the design objectives of the system controller, we determine the equilibrium point of the system and design a system controller using interconnection and damping assignment method. Simulation results show that this method can make the designed inverter run at the unity power factor with simple structure and good system stability.