A SIDIDO DC-DC Converter with Dual-Mode and Programmable-Capacitor-Array MPPT Control for Thermoelectric Energy Harvesting

Qian, Yong; Zhang, Honggang; Chen, Yanqin; Qin, Yajie; Lu, Danzhu; Hong, Zhiliang

doi:10.1109/tcsii.2016.2627551

Cited by 32 publications

(18 citation statements)

References 9 publications

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“…Losses due to output power switches are more dominant in the design because of large currents (e.g., 3.6 mA) through these switches once they are turned on. Liu et al 3 Chen et al 4 Qian et al 7 Wang et al 9 Ozaki et al 13 Comparison to prior work in Table 3 shows that the proposed SIDO achieves the highest power throughput and the widest support range with burst mode operation. Also, the proposed SIDO obtains high voltage at outputs and starts the operation from the lowest voltage level without need of the extra power source (e.g., battery).…”

Section: Resultsmentioning

confidence: 93%

“…At this point, the charge pump starts to discharge the capacitor voltage to 1.44 V, and this process occurring time is the t d2 . The relationship between these two times can be constructed with the capacitor accumulated and transferred powers, as follows: By rearranging (7), it can be obtained as…”

Section: Cp Capacitor and V Incp2 Input Voltage Selectionsmentioning

confidence: 99%

“…Due to limited energy capacity of the battery, the battery can be used in conjunction with an ambient energy source to maintain energy path to applications. [5][6][7][8] These types of designs include single energy source, a battery and a load, and deploy the battery as both energy source and the charging load. Thus, they are called dual-input dual-output (DIDO) architecture.…”

Section: Introductionmentioning

confidence: 99%

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SIDO: A single‐input double‐output energy harvesting architecture operating in burst mode with 74.87% peak end‐to‐end efficiency

Umaz

2021

Circuit Theory & Apps

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A single-input double-output (SIDO) energy harvesting architecture implemented with the off-the-shelf components is presented in this paper. The proposed SIDO consists of a step-up converter, a supercapacitor, an output routing control circuit (ORCC), and two output power switches for two loads. Once the supercapacitor charges to a maximum voltage level of nearly 3.7 V, output power switches are successively turned on by the ORCC for a short period of time (i.e., burst mode). The proposed SIDO supports output total power range from 2.694 to 196.76 mW which is in the range of 1.684 to 122.975 times greater than the maximum power available from the ambient energy source (e.g., 1.6 mW) due to the burst mode. Also, the proposed SIDO achieves a peak end-to-end efficiency of 74.87% with the self-starting, that is, no need of batteries other than the ambient energy source. As compared with prior work, the proposed SIDO supports the heaviest loads (e.g., total power of 196.76 mW) and achieves a wide support range with the burst mode operation and starts the operation from the lowest input voltage without the need of the external power source.

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Section: Resultsmentioning

confidence: 93%

Section: Cp Capacitor and V Incp2 Input Voltage Selectionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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SIDO: A single‐input double‐output energy harvesting architecture operating in burst mode with 74.87% peak end‐to‐end efficiency

Umaz

2021

Circuit Theory & Apps

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“…With the designed values of inductor L, Capacitors C, C 01 , C 02 , the transfer functions of the output voltage with respect to control variables can be derived as shown in the Equations (9)- (12 Using an adjunct polynomial scheme, the higher order transfer functions G 11 (s), G 12 (s), G 21 (s), and G 22 (s) can be reduced to second order transfer functions as shown in Equations (13)- (16).…”

Section: Of 29mentioning

confidence: 99%

“…A voltage comparator circuit [10] is used to meet the voltage demand by adjusting the duty cycle of switches for higher load side, but at the same time, the stability of lower load side voltage is reduced. The dual-mode and pulse width modulation (PWM) base methods are proposed for the particular circuit model in [11,12], which are not compatible with the goal of increasing the number of inputs and the outputs. The digital control method is proposed in [13], in which output voltage utilizes separate regulation for two modes such as common mode and differential mode.…”

Section: Introductionmentioning

confidence: 99%

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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Experimental evaluation of the backstepping‐based input resistance controller in step‐up DC–DC converter for maximum power point tracking of the thermoelectric generators

Mogadam,

Salimi,

Bathaee

et al. 2023

IET Power Electronics

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In this paper, a novel non‐linear model‐based approach is presented for maximum power point (MPP) tracking of thermoelectric generators (TEGs) using the backstepping controller. Considering the output voltage range of the thermoelectric devices, a step‐up DC–DC converter is employed as an interface between the load and input power source. According to the maximum power transfer theorem, if the equivalent input resistance of the converter (Rin) is equal to the internal resistance of the input source (RTEG), the TEG operation at the MPP will be achieved. Hence, defining the RTEG as a reference value and Rin as a feedback variable for a closed‐loop controller, the backstepping non‐linear controller is developed for input resistance control of the boost DC–DC converter. Owing to the non‐linear nature of the error variable in the input resistance control of the converters, conventional linear controllers cannot guarantee the system's closed‐loop stability within an extensive operational range. However, despite changes in generator's open‐circuit voltage (VOC) and RTEG, the designed closed‐loop controller can successfully stabilize the thermoelectric converter in different operational conditions. Considering the Lyapunov theorem and the Barbalat lemma, the asymptotic stability of the backstepping controller is proved. During the steady‐state operation, the actual values of the VOC and RTEG are updated periodically by the measurement of the converter input voltage/current values. To verify the functionality of the designed control method, PC‐based simulations are carried out in MATLAB/Simulink software. Moreover, by using TMS320F28335 digital signal processor from Texas Instruments and a simple thermoelectric simulator, the experimental response of the proposed controller is evaluated in dynamic and steady‐state conditions. The developed closed‐loop system can track the MPP of a TEG with zero steady‐state error, regardless of uncertain parameter variations.

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A SIDIDO DC-DC Converter with Dual-Mode and Programmable-Capacitor-Array MPPT Control for Thermoelectric Energy Harvesting

Cited by 32 publications

References 9 publications

SIDO: A single‐input double‐output energy harvesting architecture operating in burst mode with 74.87% peak end‐to‐end efficiency

SIDO: A single‐input double‐output energy harvesting architecture operating in burst mode with 74.87% peak end‐to‐end efficiency

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

Experimental evaluation of the backstepping‐based input resistance controller in step‐up DC–DC converter for maximum power point tracking of the thermoelectric generators

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