Calculation and simulation of the filter capacitor at the dc side of the vsr 直流側(cè)濾波電容的計(jì)算及實(shí)驗(yàn)分析
Note that filter capacitor group of the wiring methods used to protect and uneven manner, using two characters express 尾注號(hào)表示濾波電容器組采用的接線方式與不平衡保護(hù)方式,用2個(gè)字符表示。
The series h-bridge multilevel converter's power circuit is composed of uncontrolled rectifier with filtering capacitor and single phase h-bridge voltage-type inverter 串聯(lián)h橋多電平變頻器的主回路從結(jié)構(gòu)上可分為三相電容濾波不可控整流電路和單相電壓型全橋逆變電路。
The purpose : ac filter capacitor complete unit is connected into the power system of power frequency to filter harmful harmonic current out in power system and improve the quality of power, increase power factor 產(chǎn)品用途:交流濾波電容器成套裝置接于工頻電力系統(tǒng)中,有以濾除電力系統(tǒng)中有害的諧波電流,改善電能質(zhì)量提高功率因數(shù)
The purpose : the high voltage ac filter capacitor is connected together with filter reactor, resistor to form ac filter unit to filter harmful harmonic current out in power system and improve the power factor of system 高壓交流濾波電容器與濾波電抗器、電阻器等設(shè)備連接在一起組成交流濾波裝置,用來濾除電力系統(tǒng)中的有害諧波電流并改善系統(tǒng)的功率因數(shù)
The purpose : the high voltage ac filter capacitor is connected together with filter reactor, resistor to form ac filter unit to filter harmful harmonic current out in power system and improve the power factor of system 產(chǎn)品用途:高壓交流濾波電容器與濾波電抗器、電阻器等設(shè)備連接在一起組成交流濾波裝置,用來濾除電力系統(tǒng)中的有害諧波電流并改善系統(tǒng)的功率因數(shù)
Abstract : analyzed the demands of capacitor specific parameters in modernpst, emphatically discussed specific parameters demands of filter capacitor and absorber capacitor . pointed to take care of voltage rating and conditions of life test in use 摘要:分析現(xiàn)代電源技術(shù)的發(fā)展對(duì)電容器特殊參數(shù)的要求,著重討論濾波電容器、吸收電容器,指出在使用時(shí)應(yīng)注意額定電壓與壽命試驗(yàn)的條件。
In order to eliminate the influence of the output filter capacitor current on the grid current, a novel control strategy for the grid-connected inverter in grid-tied and off-grid modes is proposed . the control strategy can also realize seamless transfer between grid-tied and off-gird modes . the grid-connected inverter can supply power to the critical load when the grid is off 本文針對(duì)傳統(tǒng)并網(wǎng)控制策略進(jìn)網(wǎng)電流受輸出濾波電容電流影響的問題,提出了一種新的并網(wǎng)控制策略,該控制策略能基本消除輸出濾波電容對(duì)進(jìn)網(wǎng)電流的影響,實(shí)現(xiàn)獨(dú)立與并網(wǎng)兩模式之間的無縫切換,對(duì)關(guān)鍵負(fù)載起不間斷供電的作用。
The equation of selecting filter capacitor is derived to make the feedback energy which is produced by the inverter to be minimum . the value of the capacitor has been decreased from 20u . f to 7.6fif and the efficiency has been improved by 1.5 % . the maximal filter inductor value has been given on the base of the hysteresis control principle 推導(dǎo)出了使逆變橋的無功回饋能量最小的濾波電容取值公式,原理樣機(jī)的濾波容因此從20f減小到7.6f,減小了62;系統(tǒng)的效率提高了1.5個(gè)百分點(diǎn),重量也有所減小。