电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2013年
19期
126-131
,共6页
补偿变压器%参数设计%LCL滤波%变压器漏感%阻抗压降
補償變壓器%參數設計%LCL濾波%變壓器漏感%阻抗壓降
보상변압기%삼수설계%LCL려파%변압기루감%조항압강
compensation transformer%parameter design%LCL filter%leakage inductance of the transformer%impedance voltage drop
针对动态电压恢复器（DVR）补偿变压器漏抗的选取尚无相应的国家标准，提出了将变压器的漏电感和桥臂侧的LC滤波组成LCL滤波器。根据LCL滤波器的设计要求，来确定变压器的漏抗及阻抗压降的方法，并结合DVR的特点分析了LCL滤波器各参数的选取原则。根据上述方法对容量为30 kVA的DVR进行电压跌落补偿仿真和实验，补偿后的电网电压谐波畸变率小于5%，证明了该方法满足性能指标。
針對動態電壓恢複器（DVR）補償變壓器漏抗的選取尚無相應的國傢標準，提齣瞭將變壓器的漏電感和橋臂側的LC濾波組成LCL濾波器。根據LCL濾波器的設計要求，來確定變壓器的漏抗及阻抗壓降的方法，併結閤DVR的特點分析瞭LCL濾波器各參數的選取原則。根據上述方法對容量為30 kVA的DVR進行電壓跌落補償倣真和實驗，補償後的電網電壓諧波畸變率小于5%，證明瞭該方法滿足性能指標。
침대동태전압회복기（DVR）보상변압기루항적선취상무상응적국가표준，제출료장변압기적루전감화교비측적LC려파조성LCL려파기。근거LCL려파기적설계요구，래학정변압기적루항급조항압강적방법，병결합DVR적특점분석료LCL려파기각삼수적선취원칙。근거상술방법대용량위30 kVA적DVR진행전압질락보상방진화실험，보상후적전망전압해파기변솔소우5%，증명료해방법만족성능지표。
The leakage reactance of the compensation transformer in Dynamic Voltage Restorer (DVR) has no corresponding national standards. The paper proposes the LCL filter composed of leakage inductance of the transformer and the LC filter at the arm side. According to the design requirements of LCL filter, the transformer leakage inductance and impedance voltage drop are determined, and the parameter selection principles of LCL filter are analyzed combined with the characteristics of DVR. Using the method, the simulations and experimental results of 30 kVA capacity of DVR voltage drop compensation demonstrate that the method can meet the performance indicators, and the harmonic distortion rate of gird voltage after the compensation is less than 5%.
