Design of a Novel Boomerang Trajectory for Sliding Mode Controller

Ms, Kamalesh; Nattuthurai, Senthilnathan; Bharatiraja, C.

doi:10.1007/s12555-019-0722-0

Cited by 20 publications

(16 citation statements)

References 24 publications

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“…MPC can handle multiple states and switches with a single controller, whereas in a conventional proportional integrative derivative Energies 2020, 13, 6534 3 of 29 (PID) controller, it is difficult to design the multi-structure with a single controller. The experiment proves that MPC has a faster dynamic response even in a nonlinear system [28,29]. These features exploit the advantage of using MPC in a MIMO system to reduce cross-regulation.…”

Section: Introductionmentioning

confidence: 73%

“…By using adjunct polynomial scheme for reduction of higher order system to second order system, the second order transfer function is expressed as shown in Equations (27) and (28).…”

Section: Decoupling Methodsmentioning

confidence: 99%

“…where ∆I out j is change in the output current with cross-channel and ∆I out i is the change in the output current with self-channel. The proposed method has minimum sensitivity indices of 0.012, whereas in [28], it is found to be 0.016, which is calculated based on the step change in voltage variations. It is observed that while calculating the sensitivity index, the value obtained is less than the value mentioned in [13][14][15]22].…”

Section: Comparison With Existing Workmentioning

confidence: 98%

“…To illustrate the performance of the developed prototype and its controller, comparisons are made with the existing work in the literature [13][14][15]22,28]. The designed values with the cross-regulation are listed in Table 4.…”

Section: Comparison With Existing Workmentioning

confidence: 99%

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Minimization of Cross-Regulation in PV and Battery Connected Multi-Input Multi-Output DC to DC Converter

et al. 2020

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This paper proposes a digital model predictive controller (DMPC) for a multi-input multi-output (MIMO) DC-DC converter interfaced with renewable energy resources in a hybrid system. Such MIMO systems generally suffer from cross-regulation, which seriously impacts the stability and speed of response of the system. To solve the contemporary issues in a MIMO system, a controller is required to attenuate the cross-regulation. Therefore, this paper proposes a controller, which increases speed of response and maintains stable output by regulating the load voltage independently. The inductor current and the capacitor voltage of the proposed converter are considered as the controlling parameters. With the aid of Forward Euler’s procedure, the future values are computed for the instantaneous values of controlling parameters. Cost function defines the control action by the predicted values that describe the system performance and establish optimal condition at which the output of the system is required. This allows proper switching of the system, thereby helping to regulate the output voltages. Thus, for any variation in load, the DMPC ensures steady switching operation and minimization of cross-regulation. To prove the efficacy of proposed DMPC controller, simulations followed by the experimental results are executed on a hybrid system consisting of dual-input dual-output (DIDO) positive Super-Lift Luo converter (PSLLC) interfaced with photovoltaic renewable energy resource. The results thus obtained are compared with the conventional PID (proportional integrative derivative) controller for validation and prove that the DMPC controller is able to control the cross-regulation effectively.

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Section: Introductionmentioning

confidence: 73%

“…By using adjunct polynomial scheme for reduction of higher order system to second order system, the second order transfer function is expressed as shown in Equations (27) and (28).…”

Section: Decoupling Methodsmentioning

confidence: 99%

Section: Comparison With Existing Workmentioning

confidence: 98%

Section: Comparison With Existing Workmentioning

confidence: 99%

See 2 more Smart Citations

Minimization of Cross-Regulation in PV and Battery Connected Multi-Input Multi-Output DC to DC Converter

et al. 2020

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“…The BT-SMC will make the control system to respond in such a way that the error trajectory is tracked and traced through a boomerang trace in the sliding plane and reach the equilibrium state. The methodology of tracing a boomerang path and its control over the trajectory 25 is done by changingŔ and it is given as follows:…”

Section: Bt-smc Based Droop Value Controlmentioning

confidence: 99%

Mitigation of circulating current with effective energy management in low‐power PV‐FC‐battery‐microgrid

Ms¹,

Nattuthurai²,

Bharatiraja

et al. 2021

Int Trans Electr Energ Syst

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Microgrids are the localized network to support electricity consumers either in an islanded manner or in integration with macrogrid. Microgrids are generally vulnerable to major issues like improper voltage regulation, circulating current, and unequal power sharing. In this paper, conventional droop controller for current sharing is upgraded with a Boomerang Trajectory based Sliding Mode Controller (BT-SMC). In the proposed BT-SMC technique, the error trajectories are traced and controlled toward the equilibrium point accomplishing the system to reach the stable state. Also, the dynamic changes in the load are governed and controlled by adjusting the droop resistance in the parallel converters. The BT-SMC generates an equivalent control signal based on the control law and maintains the PWM pulses on par with the droop value and duty ratio. Additionally, this paper concerns the precondition for power sharing and power management among the different RES at different availability conditions by adopting a Source Shifting Algorithm (SSA). The hand-in-hand process of BT-SMC with SSA provides a proper load sharing with a wide stability region in the phase plane. The proposed self-adapting and self-tracking system is evaluated in Matlab/Simulink and the results were validated in real time by using dSPACE MicroLabBox-DS-1202.

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Development of ripple reduced solar photovoltaic regulators using boomerang sliding mode control strategy

Ms¹,

Nattuthurai²,

Bharatiraja

et al. 2021

Circuit Theory & Apps

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Summary DC–DC boost converters are extensively used in wide range of solar photovoltaic (PV) applications. A common problem in PV regulator is the presence of ripples in output voltage and output current, due to the oscillations in PV power, inaccurate switching, and inadmissible inductor peak currents. In general, conventional boost converters are widely used in PV regulator; however, conventional PWM‐controlled boost converters are upgraded to sliding mode controller (SMC)‐based PWM controllers, which has been elaborated in the literature. However, SMC‐based boost converter experiences the following problems: (i) presence of ripples in the output current and (ii) dynamic instability during sudden change in load current. This paper addresses the aforementioned problems and proposes a boomerang trajectory‐based SMC (BT‐SMC) control strategy for ripple mitigation in conventional DC–DC boost converters specifically used in PV regulator. BT‐SMC tracker tracks the reference wave shape and controls the duty cycle, with respect to the switching frequency to have a ripple mitigated output. This self‐adapting system provides an adequate reduction in ripples and rapid convergence of error nearest to zero. A detailed analysis on switching frequency transition, load variation, trajectory control, and its stability existence is conducted, and the proposed system is implemented using dSPACE‐MicroLabBox‐DS1202.

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Design of a Novel Boomerang Trajectory for Sliding Mode Controller

Cited by 20 publications

References 24 publications

Minimization of Cross-Regulation in PV and Battery Connected Multi-Input Multi-Output DC to DC Converter

Minimization of Cross-Regulation in PV and Battery Connected Multi-Input Multi-Output DC to DC Converter

Mitigation of circulating current with effective energy management in low‐power PV‐FC‐battery‐microgrid

Development of ripple reduced solar photovoltaic regulators using boomerang sliding mode control strategy

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