A new modular voltage source inverter topology

. a realization with 2-level voltage sources leads to the simplest realization (Fig. 2). A realization with 3-level voltage sources leads to a generalized. MOS-gated and snubberless devices. The points 5 and 6 are clear advantages of the new system, because the absence of heavy high voltage bus bars and additional

Ngày tải lên: 15/10/2013, 16:23

. can be calculated to maintain rated voltage under load varying conditions. Fig.2 shows load characteristic curve for a range of fixed capacitor sizes at. (pu) Voltage (pu) Voltage δ Output power Fig. 12. Steady state voltage characteristic per unit calculation, which base voltage is 200V, base current is 6.8A

Ngày tải lên: 15/10/2013, 16:10

. backpropagation-type ANN which has high computational capability can implement an SVM algorithm. Note that the ANN has inherent learning capability that can. undermodulation region is reached when the modu- lation factor where ( command or reference voltage magnitude and peak value of phase fundamental voltage at square-wave

Ngày tải lên: 22/12/2013, 08:16

Ngày tải lên: 24/12/2013, 11:32

... SIDE -Vcap+ Phase A Phase B Phase C Phase a Phase b Phase c V ab = Vcap V bc = 0V V ca = -Vcap V AB = -Vcap V BC = 0V V CA = Vcap -Vcap+ Phase A Phase B Phase C Phase a Phase b Phase c V ab ... = Vcap V CA = 0V Phase A Phase B Phase C Phase a Phase b Phase c -Vcap+ V AB = 0V V ab = Vcap V bc = 0V V ca = -Vcap V BC = 0V Branch Aa V CA = 0V Phase A Phase B Phase C Ph...

Ngày tải lên: 13/05/2014, 00:55

... supernatant and NaAc addition. Observed CO 2 evolution rates were similar in both cases, and the TAD supernatant VFA estimations are shown in Table 2. Estimations showed a substantial overestimation, ... BNR enhancement, as the sodium acetate addition cases. A higher P/VFAs molar ratio, observed in TAD addition case, suggested there were other potential carbon substrate available for P re...

Ngày tải lên: 05/09/2013, 08:40

. 390-0821, Japan ‡ Curamik Electronics KK, Assorti Takanawa, 3-4-13 Takanawa, Minato-ku, Tokyo 108-0074, Japan § Norwegian University of Science and Technology,. controlled and increased. Several technologies already exist; however, MERS has advantages such as large operating range, simple control as well as good characteristics

Ngày tải lên: 15/10/2013, 16:10

. Dynamics of AC Drives. Oxford, U.K.: Clarendon, 1996. [18] S. Ogasawara, H. Akagi, and A. Nabae, A novel PWM scheme of voltage inverter based on space vector. van der Broeck, H. Ch. Skudelny, and G. Stanke, “Analysis and realization of a pulse width modulator based on voltage space vectors,” IEEE Trans. Ind. Applicat.,

Ngày tải lên: 03/01/2014, 19:45

... Cinnamomum Phoebe and other genera was very valuable. The bark of Cinnamomum cassia and the root of Lindera aggregata were the famous drug in traditional medicine. The fruit of Persea americana ... study shows that Cinnamomum longepetiolatum Costerm. apud Phamh. was a new natural source of camphor in Vietnam. Keywords: Cinnamomum longepetiolatum, Lauraceae, Essential oil, camphor....

Ngày tải lên: 12/02/2014, 17:20

... Department Bar-Ilan University Ramat-Gan 52900, Israel dagan@cs.biu.ac.il Abstract This paper introduces BIUTEE 1 , an open- source system for recognizing textual entail- ment. Its main advantages are its ability ... encourage researchers to create and share their textual-inference components. A good example from another research area is the Moses system for Statistical Machine Transla- t...

Ngày tải lên: 07/03/2014, 18:20