A Nonlinear State Machine for Dead Zone Avoidance and Mitigation in a Synchronous Noninverting Buck–Boost Converter

Jones, David Charles; Erickson, Robert W.

doi:10.1109/tpel.2012.2198924

Cited by 51 publications

(15 citation statements)

References 15 publications

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“…The developed models represented in Eqs. (13)- (22) are not having zeros more than poles hence the developed models are stable digital systems. In addition, stability of these models are verified using bode plot and Z-plane in the coming section.…”

Section: Digital Domainmentioning

confidence: 98%

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Characterization of analog and digital control loops for bidirectional buck–boost converter using PID/PIDN algorithms

Viswanatha¹,

Reddy

Rajeswari³

2020

Journal of Electrical Systems and Inf Technol

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IntroductionIn today's technology worldwide, lots of changes are happening in almost all the domains. Most of the domains run on electric power which is being generated using sources like thermal, coal, nuclear, gas and so on. But these sources are non-renewable sources that results in shortage of electric power in long run. Since the world is addicted to usage of technology and if there is no power available over which technology runs, world is going to end with traditional life style, and therefore the existing technology is working on some findings using which electric power is generated from renewable sources like solar energy, wind energy and fuel cell, etc. [1][2][3]. Output of these sources are DC power which can be stored using batteries when excess power is generated and at the same time when no power is available then power stored in batteries can be taken back for the loads also the energy generated by these renewable sources is fluctuating Abstract This article presents the characterization of analog and digital control loops using PID/ PIDN control algorithms for bidirectional buck-boost converter (BBC). Control loops of BBC are designed and implemented in MATLAB code using transfer functions in time domain with unit step response and in frequency domain with bode plots and pole-zero plots. These transfer functions are obtained by average large signal modeling of BBC. Actions of analog and digital control loops are characterized in order to ensure stability and dynamic response of BBC which is a bottleneck in renewable energy applications. Improvement in dynamic response and stability of BBC with PIDN control algorithm is demonstrated using bode plots, pole-zero plots, and step response. Control loop gain due to transfer functions of power stage and controllers is demonstrated, and it is found stable in both analog and digital control loops. PIDN compensator is proposed to maintain a healthy balance between the stability and transient behavior since both are indirectly proportional. BBC is modeled using average large signal modeling technique, simulated using MATLAB tool, and analysis of dynamic and stability response is done through unit step input, bode plot, and pole-zero plot. Hardware is designed and implemented using TMS320F28335 controller.

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Section: Digital Domainmentioning

confidence: 98%

“…But for the practical realization of advanced control algorithms cannot be possible with analog control systems. In addition to its environmental issues, it causes aging effects for analog control systems [22][23][24][25].…”

Section: (Ii) Stabilitymentioning

confidence: 99%

Characterization of analog and digital control loops for bidirectional buck–boost converter using PID/PIDN algorithms

Viswanatha¹,

Reddy

Rajeswari³

2020

Journal of Electrical Systems and Inf Technol

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“…During Boost mode of operation of BBC, the state equations are shown by eqn (1) and output equations are shown by eqn (2). (…”

Section: Modelingmentioning

confidence: 99%

Stability and Dynamic Response of Analog and Digital Control loops of Bidirectional buck-boost Converter for Renewable Energy Applications

V¹,

R²,

Rajeswari³

2019

IJRTE

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This article presents the stability and dynamic response of open loop and closed loop control of Bidirectional buck-boost converter(BBC) using PID and PIDN controllers through transfer function model implemented in MATLAB code. In order to ensure the stability of switch mode power supplies the control loop behaviors need to be characterized. Improvement of stability of BBC using PID/PIDN compensators is demonstrated in both analog and digital domains by plotting bode plots. Step response of BBC using PID /PIDN controllers are plotted that defines the dynamic behavior of the system.PIDN compensator is proposed to maintain a healthy balance between the stability and transient behavior since both are indirectly proportional.

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“…Finally, the conversion ratio of the conventional boost with a resistance ratio of / 0.01 is evaluated having into account that its conversion ratio with parasitic resistance effect for all the duty cycle cases is defined as follows [17], [18]:…”

Section: ) D>50%mentioning

confidence: 99%

Parasitic Resistance Analysis in a Novel High Step-Up Interleaved Converter for Hybrid Electric Vehicles

Martínez

Imaoka

Yamamoto

et al. 2014

Journal of the Japan Institute of Power Electronics

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-In order to downsize the storage unit of Hybrid Electric Vehicles, a novel high step-up interleaved boost converter has been proposed. This converter is suitable for automotive applications due to its expected high voltage gain. However, the actual voltage conversion ratio may be significantly reduced by the parasitic resistance effect of the circuit because the input current tends to be large at a high step-up operation and therefore the voltage drop at the parasitic resistance may not be ignorable. This paper analyzes the effect of the parasitic resistance on the voltage gain and evaluates the result experimentally.Consequently, it is found that parasitic resistance affects the voltage gain largely as the ratio of the number of turns in the integrated magnetic component of the proposed converter increases and particularly when the duty cycle is larger than 0.5.

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A Nonlinear State Machine for Dead Zone Avoidance and Mitigation in a Synchronous Noninverting Buck–Boost Converter

Cited by 51 publications

References 15 publications

Characterization of analog and digital control loops for bidirectional buck–boost converter using PID/PIDN algorithms

Characterization of analog and digital control loops for bidirectional buck–boost converter using PID/PIDN algorithms

Stability and Dynamic Response of Analog and Digital Control loops of Bidirectional buck-boost Converter for Renewable Energy Applications

Parasitic Resistance Analysis in a Novel High Step-Up Interleaved Converter for Hybrid Electric Vehicles

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