电工技术学报
電工技術學報
전공기술학보
TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY
2009年
11期
83-88,101
,共7页
刘军%石健将%张仲超%何湘宁
劉軍%石健將%張仲超%何湘寧
류군%석건장%장중초%하상저
最小峰值电流%并联谐振变流器%电容滤波%定频稳压
最小峰值電流%併聯諧振變流器%電容濾波%定頻穩壓
최소봉치전류%병련해진변류기%전용려파%정빈은압
Minimum peak current%parallel resonant converter%capacitive output filter%constant frequency voltage regulation
建立了一种具有最小电流峰值的电容输出滤波高频高压并联谐振变流器分析设计方法.在保证电路等效输出电压与输入电压相等的条件下,输入电流波形接近矩形波,从而电路具有最小的电流峰值.本文在对电容输出滤波并联谐振电路工作原理分析的基础上,对电路不同工作模态进行了数学描述,并经过进一步分析推导了反映系统特性的表达式和曲线,可用于指导电路参数的设计和系统特性的分析研究.构建了一台24kV/10kW输出的实验样机进行了实验验证,结果表明在现有参数条件下电路具有最小的电流峰值,并且可以通过调整占空比实现全负载范围内的定频稳压功能.
建立瞭一種具有最小電流峰值的電容輸齣濾波高頻高壓併聯諧振變流器分析設計方法.在保證電路等效輸齣電壓與輸入電壓相等的條件下,輸入電流波形接近矩形波,從而電路具有最小的電流峰值.本文在對電容輸齣濾波併聯諧振電路工作原理分析的基礎上,對電路不同工作模態進行瞭數學描述,併經過進一步分析推導瞭反映繫統特性的錶達式和麯線,可用于指導電路參數的設計和繫統特性的分析研究.構建瞭一檯24kV/10kW輸齣的實驗樣機進行瞭實驗驗證,結果錶明在現有參數條件下電路具有最小的電流峰值,併且可以通過調整佔空比實現全負載範圍內的定頻穩壓功能.
건립료일충구유최소전류봉치적전용수출려파고빈고압병련해진변류기분석설계방법.재보증전로등효수출전압여수입전압상등적조건하,수입전류파형접근구형파,종이전로구유최소적전류봉치.본문재대전용수출려파병련해진전로공작원리분석적기출상,대전로불동공작모태진행료수학묘술,병경과진일보분석추도료반영계통특성적표체식화곡선,가용우지도전로삼수적설계화계통특성적분석연구.구건료일태24kV/10kW수출적실험양궤진행료실험험증,결과표명재현유삼수조건하전로구유최소적전류봉치,병차가이통과조정점공비실현전부재범위내적정빈은압공능.
A method of the high voltage and high frequency parallel resonant converter with capacitive output filter which has the minimal peak input current is introduced. When the equivalent output voltage is equal to the input voltage, the waveform of the input current is similar to rectangular, and therefore the circuit has the minimum value of input peak current. Based on the analysis of the operational principle of the capacitive output filter parallel resonant circuit, mathematic description is obtained for each of the different operational stage. The analytic expressions and curves reflecting the characteristics of the system are obtained by further deducing, which can be used in the design of the circuit parameters and analysis of system characteristics. A 24kV/10kW output prototype was built to verify the theoretic analysis. Experimental results show that the circuit has the minimal peak input current with existing parameters and can achieve constant voltage regulation by the use of duty ratio control in full load range.