Control of high performance single phase DC AC inverter

... supply: AC -DC rectifier, AC- AC converter, DC- AC inverter and DC- DC converter An DC- AC power converter transforms a DC input voltage to a desired magnitude and frequency AC output voltage The AC power ... improving system performance of a static UPS system 1.1.1 Control of DC- AC Inverters In control of DC- AC inverters, Total Harmonic Distortion (THD)...

Ngày tải lên: 03/10/2015, 21:56

... ANALYSIS, DESIGN AND IMPLEMENTATION OF HIGH PERFORMANCE CONTROL SCHEMES FOR THREE PHASE PWM AC- DC VOLTAGE SOURCE CONVERTER XINHUI WU (B.Eng(Hons.), SJTU, Shanghai, China) A THESIS SUBMITTED FOR ... advantage of providing high dynamic performance Hence, this thesis is aimed at developing active control solutions to achieve high performance for...

Ngày tải lên: 11/09/2015, 16:02

... ANALYSIS, DESIGN AND IMPLEMENTATION OF HIGH PERFORMANCE CONTROL SCHEMES IN RENEWABLE ENERGY SOURCE BASED DC/ AC INVERTER FOR MICRO- GRID APPLICATION SOUVIK DASGUPTA (M.Engg., Bengal Engineering ... injected into the grid Pgrid Average power injected into the grid PL , QL Active and reactive power consumption of load Pinv , Qinv Active and reac...

Ngày tải lên: 09/09/2015, 18:56

... Startup The Good Speedup Curve Speedup = OldTime NewTime Speedup = OldTime NewTime the variance can well exceed the mean The service time of a job is the service time of the slowest step of the job ... set of output streams (ports of other processes) depending on the range value (predicate) of the input tuple The split operator on the left is for the relati...

Ngày tải lên: 28/04/2014, 13:30

... the 3D wavelet transform, Kutil and Uhl have conducted a study of the software and hardware needs of the 3D wavelet transform [14] They have centered their study on the classic wavelet transform ... speed-up, and the quality of the signal 2.3 GOF-based 3D- WT One of the major challenges to overcome when computing the 3D- WT has to with the developm...

Ngày tải lên: 22/06/2014, 19:20

... talent; other countries in this group get their high ranking because of the proportion of scientists and engineers among their graduates Accessing and investing capital In the aftermath of the subprime ... openness, and the growing size and reach of multinational companies Many of these new poles of economic activity and influence are found in the emerging world—...

Ngày tải lên: 28/06/2014, 17:20

... favored by the likes of Google and Facebook, amplifying the impact of digital evangelists around the company as they accumulate their successes Then there is the ability to attract and retain digital ... particularly in the back office, so it makes sense for them to look at driving a common approach in the front office as well Their global footprints and global brands posi...

Ngày tải lên: 28/06/2014, 17:20

... the two rings are constantly in contact and as the concrete ring dies, strain gages monitor the steel ring strain In the finite element analysis the strain information was used as input using the ... the ring specimens using ANSYS software were modeled by cubic threedimensional as shown in Fig The elements of steel ring and concrete ring are continuous at nodes...

Ngày tải lên: 21/07/2014, 17:21

... study, the expression of the overexpressed high abundance acute-phase proteins (APPs) in sera of the EOCa patients was analysed according to the stages of the cancer Image analysis Images of the ... not detected in the 2-DE protein profiles of normal control women Unlike the initial three stages of EOCa, the expression of ACT, CLU, HAP, AAT and LRG in sera...

Ngày tải lên: 10/08/2014, 22:20

... Integrated Servo- Mechanical Design of High- Performance Mechanical Systems Yan Zhi Tan B.Eng (Hons.), National University of Singapore, 2010 A DISSERTATION SUBMITTED FOR THE DEGREE OF DOCTOR OF ... methods for integrated servo- mechanical design of robust mechatronics are considered 19 • Chapter explores the use of Nyquist plane for reshaping the highfrequenc...

Ngày tải lên: 09/09/2015, 08:17

... SEMICONDUCTOR MEMORIES 1.2 PHASE CHANGE RANDOM ACCESS MEMORY 1.2.1 Phase- change materials 1.2.2 Principles of Phase change random access memory 10 1.2.3 RESET current ... cost per bit Maturity 1.2 Phase change random access memory 1.2.1 Phase- change materials Phase- change materials can exist in the amorphous or crystalline phases The two phases diffe...

Ngày tải lên: 09/09/2015, 10:07

... shrinkage monitoring of high performance cementitious mixtures is needed 1.1.3 Technique for early age shrinkage monitoring For shrinkage monitoring of cementitious materials, standard apparatus and ... understanding of early age shrinkage of high performance cementitious mixtures monitored through tests conducted on monolithic and compos...

Ngày tải lên: 10/09/2015, 15:52

... spinning 29 4.3 Fabrication of flat sheet membranes In order to investigate the effect of different coagulants on the surface porosity and roughness of the PVDF membranes, PVDF flat sheet membranes ... review on membrane fabrication for MD The membranes commonly applied in membrane distillation literature have been the commercially available membranes actually fabrica...

Ngày tải lên: 04/10/2015, 10:24

... and type of coarse aggregate on the autogenous shrinkage and drying shrinkage of high- performance concrete, and to establish a relationship between the autogenous and total shrinkage of concrete ... on the drying shrinkage of concrete, and Swayze (1960) showed that higher shrinkage of cement paste does not necessarily 16 Chapter Literature Review mean higher shrinkage of...

Ngày tải lên: 04/10/2015, 17:07

... and type of coarse aggregate on the autogenous shrinkage and drying shrinkage of high- performance concrete, and to establish a relationship between the autogenous and total shrinkage of concrete ... on the drying shrinkage of concrete, and Swayze (1960) showed that higher shrinkage of cement paste does not necessarily 16 Chapter Literature Review mean higher shrinkage of...

Ngày tải lên: 05/10/2015, 19:00