Some critical aspects in sliding mode control design for the boost inverter

Vázquez, N.; Álvarez, J. Raziel; Aguilar, C.; Arau, J.

doi:10.1109/ciep.1998.750663

Cited by 36 publications

(18 citation statements)

References 9 publications

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“…Equations (30), (31), (34), and (35) clearly show that the doubleline-frequency current component will mainly flow through L 1 and L 2 instead of C 1 and C 2 , as depicted in Fig. 7(b).…”

Section: Flow Path Of a Double-line-frequency Current Componentmentioning

confidence: 91%

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Mitigation of Low-Frequency Current Ripple in Fuel-Cell Inverter Systems Through Waveform Control

Zhu

Tan

Chen

et al. 2013

IEEE Trans. Power Electron.

169

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Fuel-cell power systems comprising single-phase dc/ac inverters draw low-frequency ac ripple currents at twice the output frequency from the fuel cell. Such a 100/120 Hz ripple current may create instability in the fuel-cell system, lower its efficiency, and shorten the lifetime of a fuel cell stack. This paper presents a waveform control method that can mitigate such a lowfrequency ripple current being drawn from the fuel cell while the fuel-cell system delivers ac power to the load through a differential inverter. This is possible because with the proposed solution, the pulsation component (cause of ac ripple current) of the output ac power will be supplied mainly by the two output capacitors of the differential inverter while the average dc output power is supplied by the fuel cell. Theoretical analysis, simulation, and experimental results are provided to explain the operation and showcase the performance of the approach. Results validate that the proposed solution can achieve significant mitigation of the current ripple as well as high-quality output voltage without extra hardware. Application of the solution is targeted at systems where current ripple mitigation is required, such as for the purpose of eliminating electrolytic capacitor in photovoltaic and LED systems.

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“…Equations (30), (31), (34), and (35) clearly show that the doubleline-frequency current component will mainly flow through L 1 and L 2 instead of C 1 and C 2 , as depicted in Fig. 7(b).…”

Section: Flow Path Of a Double-line-frequency Current Componentmentioning

confidence: 91%

“…The objective of the waveform control method is to ensure that the capacitor voltages follow precisely (11) and (12). According to [31], to maximize the efficiency of the converter, the minimum dc bias for the converters is…”

Section: Proposed Waveform Control Methodsmentioning

confidence: 99%

Mitigation of Low-Frequency Current Ripple in Fuel-Cell Inverter Systems Through Waveform Control

Zhu

Tan

Chen

et al. 2013

IEEE Trans. Power Electron.

169

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“…The Boost DC-AC inverter exhibits several advantages, the most important of which is that it can naturally generate an AC output voltage from a lower DC input voltage in a single power stage. The reduced number of power switches that is required (only four) and the quality of the output voltage sine wave are additional advantages that have been often mentioned in the literature [1], [2], [4], [5].…”

Section: Introductionmentioning

confidence: 97%

“…The sliding mode control achieves good steady state results. However, it has some disadvantages related to the required complex theory, the variable switching frequency, the lack of an inductance averaged-current control and the constraints to the controller parameter selection [5]. This paper proposes a control strategy for the Boost inverter in which each Boost is controlled by means of a double-loop control scheme that consists of a new inductor current control inner loop and an also new output voltage control outer loop [9], [10].…”

Section: Introductionmentioning

confidence: 99%

A novel control strategy for the boost DC - AC inverter

Kalaivani¹,

Chinnaiyan

Jerome

2006

2006 India International Conference on Power Electronics

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Boost DC-AC inverter naturally generates in a single stage an AC voltage whose peak value can be lower or greater than the DC input voltage. The main drawback of this structure deals with its control. Boost inverter consists of Boost DC-DC converters that have to be controlled in a variable-operation point condition. The sliding mode control has been proposed as an option. However, it does not directly control the inductance averaged-current. This paper proposes a control strategy for the Boost inverter in which each Boost is controlled by means of a double-loop regulation scheme that consists of a new inductor current control inner loop and an also new output voltage control outer loop. These loops include compensations in order to cope with the Boost variable operation point condition and to achieve a high robustness to both input voltage and output current disturbances. As shown by simulation results, the proposed control strategy achieves a very high reliable performance, even in difficult transient situations such as nonlinear loads, abrupt load changes, short circuits, etc., which sliding mode control cannot cope with.

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“…However, there has been adequate criticism of the same, published in [2] which notes its disadvantages, including the complex theory that is needed, the variable switching frequency, the lack of an inductance averagedcurrent control and a restriction on the ability to select parameter values for the controller. This prompts us to seek other modes of control and optimization such as that used in [3], which proposes an adaptive control mechanism capable of coping with unknown resistive loads.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Bacterial Foraging Algorithm for Optimization of Boost Inverter Parameters

Arunkumar¹,

Gnanambal²

2016

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This paper proposes a boost inverter model capable of coping with changes in load as well as line parameters. In order to achieve an output AC voltage higher than the input DC voltage, we can use this model consisting of a pair of DC-DC converters with a load connected differentially across them. This paper aims at developing a boost inverter that is capable of achieving a very high gain, to obtain an AC voltage of 110 Vrms from a DC input of 36 V. This is exceptionally beneficial in renewable energy applications, where the input voltage garnered is quite small, and in need of stepping up for commercial use or transmission. However, aside from the voltage level itself, lowering the rise time, settling time, peak overshoot and steady state error of the system is of cardinal importance in order to maintain a reliable output voltage. Closed loop control of the differentially connected DC-DC converters is necessary to determine the optimal stable operating point. This paper addresses the above concerns through optimization of the proportional and integral constants using the novel Bacterial Foraging Algorithm, ensuring operation at the required optimal stable operating point. Moreover, load/line disturbances may occur due to which the stability of output voltage may be compromised and THD value may increase to undesirable extents. In these cases, utilization of the output voltage is no longer viable for several applications sensitive to such voltage fluctuations. We have demonstrated that our proposed model is capable of restoring/reverting to the satisfactory sinusoidal waveform fashion within a single voltage cycle. The waveform results that demonstrate the resilience of our model to such disturbances are represented appropriately.

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Some critical aspects in sliding mode control design for the boost inverter

Cited by 36 publications

References 9 publications

Mitigation of Low-Frequency Current Ripple in Fuel-Cell Inverter Systems Through Waveform Control

Mitigation of Low-Frequency Current Ripple in Fuel-Cell Inverter Systems Through Waveform Control

A novel control strategy for the boost DC - AC inverter

Utilization of Bacterial Foraging Algorithm for Optimization of Boost Inverter Parameters

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