电工技术学报
電工技術學報
전공기술학보
TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY
2010年
3期
97-101
,共5页
逆变电源%无线并联%输出阻抗%电流反馈
逆變電源%無線併聯%輸齣阻抗%電流反饋
역변전원%무선병련%수출조항%전류반궤
Inverter system%parallel without interconnection%output impedance%current feedback
常规逆变电源并联系统含有控制联络线,组网不便,干扰严重。本文设计了一种数字化无线并联控制系统,针对逆变电源输出阻抗中阻性分量对系统功率特性的影响,采用基于电感电流反馈的逆变电压瞬时双闭环控制对系统输出阻抗特性加以改善,从而保证了功率下垂理论的正确应用。研制的两台DSP控制1kW逆变电源样机,成功地实现了无线并联运行。
常規逆變電源併聯繫統含有控製聯絡線,組網不便,榦擾嚴重。本文設計瞭一種數字化無線併聯控製繫統,針對逆變電源輸齣阻抗中阻性分量對繫統功率特性的影響,採用基于電感電流反饋的逆變電壓瞬時雙閉環控製對繫統輸齣阻抗特性加以改善,從而保證瞭功率下垂理論的正確應用。研製的兩檯DSP控製1kW逆變電源樣機,成功地實現瞭無線併聯運行。
상규역변전원병련계통함유공제련락선,조망불편,간우엄중。본문설계료일충수자화무선병련공제계통,침대역변전원수출조항중조성분량대계통공솔특성적영향,채용기우전감전류반궤적역변전압순시쌍폐배공제대계통수출조항특성가이개선,종이보증료공솔하수이론적정학응용。연제적량태DSP공제1kW역변전원양궤,성공지실현료무선병련운행。
Conventional parallel inverter system always includes control interconnection. It is not easy to be parallel connected and causes more serious interference also. A digital parallel inverter system without interconnection is designed in this paper. Considering the resistor part influence of output impedance on its power characteristic, the system is controlled by double closed loop of instantaneous output voltage, which based on inductive current feedback. This control strategy can improve the output impedance performance of the inverter; therefore the droop theory can be applied correctly in this paper. At last, the parallel operation without interconnection of two 1kW inverter samples controlled by DSP （digital signal processor） is implemented successfully.
