Exact linearization in switched-mode DC-to-DC power converters

Sira‐Ramírez, Hebertt; Ilić-Spong, Marija

doi:10.1080/00207178908953380

Cited by 96 publications

(35 citation statements)

References 4 publications

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“…The application of feedback linearization approaches for power system control was first investigated by Marino [2] and subsequently by several researchers [3][4][5]. This control technique has also been successfully applied to control of drives and power electronics based systems [6][7][8]. Successful applications of FACTS equipment for power flow control, voltage control and transient stability improvement have been reported in the literature [9][10][11][12][13].The rapid development of power electronics technology provides opportunities to develop new power equipment to improve the performance of the actual power systems.…”

Section: Transient Stabilitymentioning

confidence: 99%

Non-linear Control of UPFC for the Stabilization of Synchronous Generator

Kumar¹,

Dash²,

Bhaskar³

et al. 2010

IJCA

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An Unified Power Flow Controller (UPFC) is a typical Flexible AC Transmission System (FACTS) device playing a vital role as a stability aid for large transient disturbances in an interconnected power system.This paper deals with the design of Feedback Linearising Controller (FBLC) for UPFC.The disturbances are created in the SMIB system and the results are simulated.The results proved the supremacy of the Power System Stabilizer (PSS) equipped with FBLC over the PSS equipped with Proportional Integral(PI) controller.

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Section: Transient Stabilitymentioning

confidence: 99%

Non-linear Control of UPFC for the Stabilization of Synchronous Generator

Kumar¹,

Dash²,

Bhaskar³

et al. 2010

IJCA

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“…Another approach is to recognize the variable structure features of the DC-DC topologies and to employ a sliding mode controller, [13], [19], [36], in each module. Associated to that or independent, control laws through inputoutput linearization and coordinate transformations, [13], [20], can also be tried. The fuzzy logic interface is described in the next section.…”

Section: Lyapunov Stability For Two Identical Parallel Convertersmentioning

confidence: 99%

“…A good way to highlight the CS error is to employ an input-output linearization, [20], [36] - [38], so the reference input is linearly present in the expression of the output, which is the Because of the way we chose k, we would have that e(t)→0 as t→∞, i.e., the plant output y tracks the reference y r asymptotically and the poles can be placed so we get the desired transient response.…”

Section: On a Lyapunov Stable Fuzzy Logic Controlmentioning

confidence: 99%

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On the Use of Fuzzy Logic to Control Paralleled DC-DC Converters

Tomescu¹,

Landingham

2002

Soft Computing in Industrial Electronics

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The objective of the thesis is to introduce a new fuzzy logic control application, develop the associated mathematical theory and prove the concept and its advantages through comparative simulation with existing, classical, methods.A stable fuzzy logic controller for the master-slave current sharing loop of a paralleled DC-DC system is presented that exhibits a considerably improved large signal performance over the presently employed, small signal designed compensators, both in terms of system response and control effort. Because of high system complexity, the present small signal designs are unable to give a good response for large load changes and line transients. Fuzzy logic, by dealing naturally with nonlinearities, offers a superior controller type, for this type of applications. The design uses a PID expert to derive the fuzzy inference rules, and simulation results show a good parameter insensitive transient response over a wide range load-step responses, e.g., from 25% to 75% of the nominal load. Current sharing control is formulated as a tracking problem and stability is ensured through adaptation or supervisory control on a Lyapunov trajectory. The technique benefits also from the heuristic approach to the problem that overcomes the complexity in modeling such systems and, hence, offers a practical engineering tool, amenable to both analog and digital implementations.iii Prof. Fred C. Lee and associated CPES staff, for allowing me the exceptional opportunity of starting research and study at Virginia Tech -VPEC. In this regard, working also with Prof.Dushan Boroyevich significantly broadened my research interests.

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“…Among many nonisolated topologies, the buck-boost converter is one capable of supplying an output voltage that can be stepped down or up from the input voltage [5][6][7][8][9][10][11]. However, the voltage gain of the buck-boost converter is not a linear function of the duty cycle, and thus the control signal.…”

Section: Introductionmentioning

confidence: 99%

Improved control‐to‐output characteristics of a PWM buck‐boost converter

Chen

Lin

et al. 2011

Circuit Theory & Apps

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SUMMARYAn indirect control variable for improving the control-to-output characteristics of a Pulse Width Modulation (PWM) buck-boost converter is introduced in this letter. The voltage gain and the small-signal model of the buck-boost converter are reviewed. The actual voltage command at one input of the PWM comparator is from the proposed indirect control variable and the peak value of the high-frequency PWM carrier. The resulted voltage gain function appears proportional to this indirect control command. Also the dependence of the DC gain of the control-to-output transfer function on the duty cycle is eliminated. Experimental results conform well to the theoretical analysis.

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Exact linearization in switched-mode DC-to-DC power converters

Cited by 96 publications

References 4 publications

Non-linear Control of UPFC for the Stabilization of Synchronous Generator

Non-linear Control of UPFC for the Stabilization of Synchronous Generator

On the Use of Fuzzy Logic to Control Paralleled DC-DC Converters

Improved control‐to‐output characteristics of a PWM buck‐boost converter

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