By Anindya Dasgupta, Parthasarathi Sensarma
ISBN-10: 9811038317
ISBN-13: 9789811038310
This e-book describes goal functions for synchronous structures: regulated 3-phase voltage provide and voltage sag mitigation. It offers an in depth layout process for converter switches and filters contemplating all steady-state, commutation and dynamic specifications. This paintings has advanced from formerly released learn by means of the authors, which in flip is a part of a bigger attempt to extend the appliance area of matrix converters to energy platforms. The goals of the paintings were labeled into the next: constructing a dynamic version that offers 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 element. The input–output variables are similar by means of non-diagonal move functionality matrices. person move functionality sub-matrices are sequentially investigated and it really is proven that, looking on the enter energy, enter voltage and clear out parameters, the looks of a suite of correct part zeros is possible. The booklet then considers clear out layout, in addition to normal concerns like ripple attenuation, legislation, reactive present loading, and clear out losses. The publication additionally addresses extra constraints which may be imposed via dynamic standards and commutation. within the 3rd degree, voltage controller layout is designated for a 3-phase regulated voltage offer. In dq area, output voltage keep an eye on represents a multivariable keep an eye on challenge. this is often decreased to a unmarried variable keep an eye on challenge whereas holding all attainable correct part zeros, thereby holding the inner balance of the procedure. hence, the traditional unmarried variable regulate layout procedure has been used to layout a controller. The analytically anticipated dynamic reaction has been confirmed through experimental effects. It used to be attainable to function the approach past the serious energy boundary the place definitely the right part zeros emerge. finally, the constructed regulate technique has been prolonged to voltage sag mitigation with sufficient changes. A 3-wire linear load and both symmetrical and asymmetrical voltage sags were thought of. Experimentally acquired reaction time for sag mitigation was once discovered to be below the facility provide holdup time of many of the delicate equipment. This ebook might be helpful to either researchers and graduate scholars.
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Additional resources for Design and Control of Matrix Converters. Regulated 3-Phase Power Supply and Voltage Sag Mitigation for Linear Loads
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Applications of this predictive model based approach for different control objectives are summarized in [32]. 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.
54), the individual elements of the corresponding transfer matrix D(s) in dq domain are 1 2 j D12 (s) = − 2 D11 (s) = D Z (s − jωT ) D Z (s + jωT ) + , D P (s + jωT ) D P (s − jωT ) D Z (s + jωT ) D Z (s − jωT ) − . 84) Therefore the common denominator polynomial is Cd (D) = D P (s + jωT ) D P (s − jωT ). 85) The roots of common denominator Cd (D) of the transfer matrices are obtained by shifting only the imaginary part of the roots of D P (s). Therefore the real part of the roots remain unaffected as shown in Fig.
Analysis of poles and zeros for this specific sub class of common denominator transfer function matrices (CdTM) are described in the following section. 1 Poles and Zeros of CdTM A 2 × 2 transfer matrix G(s) with normal rank 2 is considered where G(s) = 1 G 11 (s) G 12 (s) = G 21 (s) G 22 (s) d(s) N11 (s) N12 (s) . 74) d(s) is the common denominator polynomial of each elements and N11 (s), N12 (s), N21 (s) and N22 (s) are the numerator polynomials. 75) Identifying the poles and zeros of the 2 × 2 matrix G(s), requires deriving a diagonal matrix L(s) from G(s) as [42, 43], L(s) = U1(s)G(s)U2(s).
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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