Get Design and Control of Matrix Converters. Regulated 3-Phase PDF

By Anindya Dasgupta, Parthasarathi Sensarma

ISBN-10: 9811038317

ISBN-13: 9789811038310

This ebook describes objective purposes for synchronous structures: regulated 3-phase voltage offer and voltage sag mitigation. It offers an in depth layout method for converter switches and filters contemplating all steady-state, commutation and dynamic requisites. This paintings has advanced from formerly released examine by way of the authors, which in flip is a part of a bigger attempt to extend the applying area of matrix converters to energy platforms. The ambitions of the paintings were labeled into the next: constructing a dynamic version that gives enough layout insights; designing filters; and devising a regulate scheme. The low frequency dynamic version is first analyzed for regulated voltage provides assuming balanced approach. The process is modeled relative to a synchronous rotating (dq) body linearized round an working aspect. The input–output variables are comparable through non-diagonal move functionality matrices. person move functionality sub-matrices are sequentially investigated and it's proven that, looking on the enter energy, enter voltage and filter out parameters, the looks of a collection of correct part zeros is possible.   The e-book then considers filter out layout, in addition to common matters like ripple attenuation, legislation, reactive present loading, and clear out losses. The ebook additionally addresses extra constraints which may be imposed by means of dynamic necessities and commutation. within the 3rd degree, voltage controller layout is specific for a 3-phase regulated voltage provide. In dq area, output voltage keep an eye on represents a multivariable regulate challenge. this is often diminished to a unmarried variable keep watch over challenge whereas protecting all attainable correct part zeros, thereby conserving the interior balance of the approach. hence, the traditional unmarried variable keep an eye on layout approach has been used to layout a controller. The analytically anticipated dynamic reaction has been proven by means of experimental effects. It was once attainable to function the process past the serious energy boundary the place the fitting part zeros emerge.  finally, the built regulate strategy has been prolonged to voltage sag mitigation with enough variations. A 3-wire linear load and  both symmetrical and asymmetrical voltage sags were thought of. Experimentally bought reaction time for sag mitigation was once came upon to be lower than the facility provide holdup time of lots of the delicate equipment. This ebook may be worthy to either researchers and graduate scholars.

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Extra resources for Design and Control of Matrix Converters. Regulated 3-Phase Power Supply and Voltage Sag Mitigation for Linear Loads

Example text

E. Vdc and Idc are treated as sources for the VSC and CSC parts respectively. The duty cycle of each switch in the 9 bidirectional switch MC structure is calculated in two stages. In the first stage, the duty cycles are calculated separately for each converters of the decoupled construct using conventional space vector modulation (SVM) va a n vc vb Fictitious DC link b c + Idc A B C Vdc − Current Source Converter Voltage Source Converter Fig. 3 Decoupled current and voltage source converter construct 26 2 Low Frequency Dynamic Model approach.

Pin = {iin (3) }T vcf (3) = {mi }T Idc vcf (3) = {mi }T Hence mv {mi }T is the input phase to output line voltage low frequency gain matrix. 21) where m is commonly referred to as modulation index. 21) as ⎡ ⎤⎡ ⎤T cos(ωo t + ϕo ) cos(ωi t − ϕc − ϕi ) √ m(3) = (m/ 3) ⎣ cos(ωo t + ϕo − 120◦ ) ⎦ ⎣ cos(ωi t − ϕc − ϕi − 120◦ ) ⎦ . 22), iin (3) = m(3) T io (3) . 25) where, ϕoL is the output displacement angle and Iˆo is the amplitude of the output current (i o ). So for a given v∗on (3) , load and vcf (3) , it is not possible to independently control ϕi and Iˆin .

Keeping aside the obvious concern regarding the accuracy of the predictive models, on-line computation of Q G for all valid switching states would increase the computational burden to a great extent. Superiority of this technique over the performance obtained with SVM approaches has not been established yet [32]. 5 Dynamic Model for Controller Design Tight coupling between the input and output side of MC complicates controller design, particularly for applications requiring high bandwidth. Hence, for stable operation, a proper control scheme based on a tractable dynamic model becomes necessary—an area, which has not received sufficient attention.

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Design and Control of Matrix Converters. Regulated 3-Phase Power Supply and Voltage Sag Mitigation for Linear Loads by Anindya Dasgupta, Parthasarathi Sensarma


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