This paper investigates the impact of bifurcations on the performance of power electronic circuits. We focus on circuits that include energy-harvesting devices, which exhibit a maximum power point (MPP). In particular, a DC–DC converter with a photovoltaic (PV) module is considered a representative example of such systems to evaluate the relationship between the circuit performance indices (such as power conversion and maximum power point tracking (MPPT) efficiency) and the bifurcation phenomena observed in the system. First, experimental results are reported that evaluate circuit characteristics and performance under MPPT control. Then, a novel mathematical PV model is presented and fully defined using experimentally measured parameters; this model does not necessitate the use of root-finding algorithms. Next, this model is integrated with the switched nonlinear model of a DC–DC converter subject to peak current mode control (PCMC), and a stability analysis of the periodic orbits is performed. Finally, the relationship between circuit performance and observed bifurcation phenomena is investigated and discussed. This research demonstrates the occurrence of both period-doubling and Neimark–Sacker bifurcations in the system considered here, and these features are shown in a two-parameter bifurcation diagram.
{"title":"Impact of Bifurcations on the Performance of Power Electronic Circuits","authors":"Hiroyuki Asahara;Kuntal Mandal;Hiroki Akiba;Nobuyuki Kasa;Takuji Kousaka","doi":"10.1109/TCSI.2025.3595507","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3595507","url":null,"abstract":"This paper investigates the impact of bifurcations on the performance of power electronic circuits. We focus on circuits that include energy-harvesting devices, which exhibit a maximum power point (MPP). In particular, a DC–DC converter with a photovoltaic (PV) module is considered a representative example of such systems to evaluate the relationship between the circuit performance indices (such as power conversion and maximum power point tracking (MPPT) efficiency) and the bifurcation phenomena observed in the system. First, experimental results are reported that evaluate circuit characteristics and performance under MPPT control. Then, a novel mathematical PV model is presented and fully defined using experimentally measured parameters; this model does not necessitate the use of root-finding algorithms. Next, this model is integrated with the switched nonlinear model of a DC–DC converter subject to peak current mode control (PCMC), and a stability analysis of the periodic orbits is performed. Finally, the relationship between circuit performance and observed bifurcation phenomena is investigated and discussed. This research demonstrates the occurrence of both period-doubling and Neimark–Sacker bifurcations in the system considered here, and these features are shown in a two-parameter bifurcation diagram.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 2","pages":"1500-1511"},"PeriodicalIF":5.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes the first simultaneous wireless power and data transfer (SWPDT) integrated circuit (IC) which exploits a Capacitive-Inductive Channel (CI-Channel), enabling concurrent power and data transmission. The communication across the CI-Channel can support data-only transmission or can be incorporated into the system control loop, allowing output voltage regulation through phase-shift control applied at the primary side. The proposed IC can be configured as primary side (power transmitter, P-TX, and data receiver, RX) or secondary side (power receiver, P-RX, and data transmitter, TX). In order to ensure communication robustness, unwanted disturbances are removed through specifically designed Power Blanking and Ringing Blanking circuits. The proposed SWPDT IC test-chip prototype was fabricated using a 130-nm BCD process and experimentally verified considering the complete wireless power transfer (WPT) system, including primary side, CI-Channel and secondary side. The overall system, targeting medium-power industrial applications, achieves a maximum 5.3-W output power, a peak efficiency of 83.7% and a load regulation of 0.09 mV/mA. Moreover, a 540 kb/s data rate with no transmission errors across $10^{9}$ bit acquisitions, corresponding to a bit-error-rate (BER) $lt 10^{-9}$ , was achieved.
{"title":"A 5.3-W 83.7% Peak Efficiency Simultaneous Wireless Power and Data Transfer IC Enabling 10–9 BER 540-kb/s Data Rate or Output Voltage Regulation","authors":"Alessandro Liotta;Elisabetta Moisello;Giovanni Frattini;Pietro Giannelli;Piero Malcovati;Edoardo Bonizzoni","doi":"10.1109/TCSI.2025.3595804","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3595804","url":null,"abstract":"This paper proposes the first simultaneous wireless power and data transfer (SWPDT) integrated circuit (IC) which exploits a Capacitive-Inductive Channel (CI-Channel), enabling concurrent power and data transmission. The communication across the CI-Channel can support data-only transmission or can be incorporated into the system control loop, allowing output voltage regulation through phase-shift control applied at the primary side. The proposed IC can be configured as primary side (power transmitter, P-TX, and data receiver, RX) or secondary side (power receiver, P-RX, and data transmitter, TX). In order to ensure communication robustness, unwanted disturbances are removed through specifically designed Power Blanking and Ringing Blanking circuits. The proposed SWPDT IC test-chip prototype was fabricated using a 130-nm BCD process and experimentally verified considering the complete wireless power transfer (WPT) system, including primary side, CI-Channel and secondary side. The overall system, targeting medium-power industrial applications, achieves a maximum 5.3-W output power, a peak efficiency of 83.7% and a load regulation of 0.09 mV/mA. Moreover, a 540 kb/s data rate with no transmission errors across <inline-formula> <tex-math>$10^{9}$ </tex-math></inline-formula> bit acquisitions, corresponding to a bit-error-rate (BER) <inline-formula> <tex-math>$lt 10^{-9}$ </tex-math></inline-formula>, was achieved.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 2","pages":"1406-1419"},"PeriodicalIF":5.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-08DOI: 10.1109/TCSI.2025.3593415
Zheng Liu;Hanlin Dong;Qianbao Mi;Zhiqiang Ma;Zhaoke Ning;Xudong Wang
This paper primarily introduces a novel prescribed performance control method to achieve rapid and high-precision control in servo systems. Initially, an interesting asymmetric barrier function is proposed, so that the controlled plant with arbitrary initial values can be confined within an asymmetric boundary. To reduce the dependence of controller deployment on physical parameters, an ultralocal model (ULM) approach is adopted and the logarithmic sliding-mode manifold is synthesized to design the controller and observer, resulting in an order-reduced and transient-performance-improved error dynamics. Since there are no non-Lipschitz continuous elements in the logarithmic sliding-mode, the super-twisting algorithm can be used to weaken signal chattering while converging the equivalent error rapidly. The Lyapunov-based direct analysis proves the stability of the controlled servo system with unknown parameters. The superiority of the scheme is verified through a series of simulations and experiments on PMSM platform.
{"title":"Ultralocal Model-Free Logarithmic Sliding-Mode Control for PMSM Angle Robust Tracking With Asymmetric Constraints","authors":"Zheng Liu;Hanlin Dong;Qianbao Mi;Zhiqiang Ma;Zhaoke Ning;Xudong Wang","doi":"10.1109/TCSI.2025.3593415","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3593415","url":null,"abstract":"This paper primarily introduces a novel prescribed performance control method to achieve rapid and high-precision control in servo systems. Initially, an interesting asymmetric barrier function is proposed, so that the controlled plant with arbitrary initial values can be confined within an asymmetric boundary. To reduce the dependence of controller deployment on physical parameters, an ultralocal model (ULM) approach is adopted and the logarithmic sliding-mode manifold is synthesized to design the controller and observer, resulting in an order-reduced and transient-performance-improved error dynamics. Since there are no non-Lipschitz continuous elements in the logarithmic sliding-mode, the super-twisting algorithm can be used to weaken signal chattering while converging the equivalent error rapidly. The Lyapunov-based direct analysis proves the stability of the controlled servo system with unknown parameters. The superiority of the scheme is verified through a series of simulations and experiments on PMSM platform.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 1","pages":"644-656"},"PeriodicalIF":5.2,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes the load-independent class-E Zero-Voltage Switching (ZVS) power oscillator. Conventional class-E power oscillator has a load-dependent phase shift, which hinders sustained oscillation under varying load conditions. Hence, we introduce the class-E power amplifier that ensures the load-independent phase shift in the output current. By incorporating it into an LCLC filter with a resonant-capacitor feedback network, the load-independent self-oscillation is realized. The proposed power oscillator satisfies a phase-shift requirement for sustained oscillation regardless of the load resistance. Furthermore, the proposed circuit exhibits load independence in ZVS, output current, and gate-drive voltage. This paper provides a thorough analysis of the proposed power oscillator, covering its operating principle, power loss prediction, design, and limitations. This paper also gives two design examples with 0.8 MHz and 6.78 MHz oscillation frequencies. In the experiment, the prototype power oscillators achieved 93.8 % and 87.4 % power-conversion efficiencies, respectively. The validity and effectiveness of the proposed power oscillator are demonstrated from the experimental verifications.
{"title":"Analysis and Design of Load-Independent Class-E Zero-Voltage Switching Power Oscillator","authors":"Yutaro Komiyama;Wenqi Zhu;Akihiro Konishi;Kien Nguyen;Hiroo Sekiya","doi":"10.1109/TCSI.2025.3594362","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3594362","url":null,"abstract":"This paper proposes the load-independent class-E Zero-Voltage Switching (ZVS) power oscillator. Conventional class-E power oscillator has a load-dependent phase shift, which hinders sustained oscillation under varying load conditions. Hence, we introduce the class-E power amplifier that ensures the load-independent phase shift in the output current. By incorporating it into an LCLC filter with a resonant-capacitor feedback network, the load-independent self-oscillation is realized. The proposed power oscillator satisfies a phase-shift requirement for sustained oscillation regardless of the load resistance. Furthermore, the proposed circuit exhibits load independence in ZVS, output current, and gate-drive voltage. This paper provides a thorough analysis of the proposed power oscillator, covering its operating principle, power loss prediction, design, and limitations. This paper also gives two design examples with 0.8 MHz and 6.78 MHz oscillation frequencies. In the experiment, the prototype power oscillators achieved 93.8 % and 87.4 % power-conversion efficiencies, respectively. The validity and effectiveness of the proposed power oscillator are demonstrated from the experimental verifications.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 1","pages":"721-734"},"PeriodicalIF":5.2,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-07DOI: 10.1109/TCSI.2025.3594266
Xin Tong;Zhangyong Chen;Yong Chen;Lehan Xu
In switching converters, capacitor current is a critical feedback parameter due to its ability to rapidly reflect dynamic load variations, making it widely applicable in various control strategies such as current-mode feedback regulation. With the rapid advancement of digital power technology, current detection must be implemented in the digital domain, typically requiring high-bandwidth current sensors and high-speed analog-to-digital converters (ADCs). To address the high-cost challenge associated with capacitor current sampling in digital buck converters, this paper proposes a low-cost digital capacitor current estimation technique based on output voltage information tracking. By analyzing the dynamic characteristics of the output voltage, the method achieves precise estimation of the capacitor current. This paper thoroughly investigates the error issues arising from time constant mismatch in the proposed capacitor current estimation method and introduces an online time constant identification approach based on the output capacitor ($mathbf {C}_{mathbf {o}}$ ) and its equivalent series resistance (ESR). By dynamically adjusting the estimator parameters, the estimation accuracy is significantly improved. The proposed algorithm is experimentally validated on a buck converter prototype. The results demonstrate that the error in the time constant after identification and correction is controlled within 3%, and the capacitor current estimation accuracy is maintained within 6%.
{"title":"A Low-Cost Digital Capacitor Current Estimation Algorithm Based on Parameter Identification for Buck Converter Application","authors":"Xin Tong;Zhangyong Chen;Yong Chen;Lehan Xu","doi":"10.1109/TCSI.2025.3594266","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3594266","url":null,"abstract":"In switching converters, capacitor current is a critical feedback parameter due to its ability to rapidly reflect dynamic load variations, making it widely applicable in various control strategies such as current-mode feedback regulation. With the rapid advancement of digital power technology, current detection must be implemented in the digital domain, typically requiring high-bandwidth current sensors and high-speed analog-to-digital converters (ADCs). To address the high-cost challenge associated with capacitor current sampling in digital buck converters, this paper proposes a low-cost digital capacitor current estimation technique based on output voltage information tracking. By analyzing the dynamic characteristics of the output voltage, the method achieves precise estimation of the capacitor current. This paper thoroughly investigates the error issues arising from time constant mismatch in the proposed capacitor current estimation method and introduces an online time constant identification approach based on the output capacitor (<inline-formula> <tex-math>$mathbf {C}_{mathbf {o}}$ </tex-math></inline-formula>) and its equivalent series resistance (ESR). By dynamically adjusting the estimator parameters, the estimation accuracy is significantly improved. The proposed algorithm is experimentally validated on a buck converter prototype. The results demonstrate that the error in the time constant after identification and correction is controlled within 3%, and the capacitor current estimation accuracy is maintained within 6%.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 2","pages":"1512-1524"},"PeriodicalIF":5.2,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A major challenge of long-term clock stability is frequency drift due to temperature variations. This paper describes the design of a proportional, integral, derivative (PID) control system for external ovenization of an AlScN-on-Si Shear-BAW Resonator (S3R), which has a fixed turnover temperature where the $1{^{text {st}}}$ order temperature coefficient of frequency is $approx 0$ ppm/°C. The control system provides $pm ~0.125^{circ }$ C temperature stability and assists in achieving better than $pm ~25$ ppb frequency stability over a temperature range of 15-40°C by maintaining resonator operation near the turnover temperature, where the $2{^{text {nd}}}$ order temperature coefficient of frequency drift is -62.71ppb/°C2. The robust and adaptive PID algorithm (programmed on an external microcontroller unit connected to the interposer) ensures continuous ovenization by configuring the duty cycle of a compact heat actuator (powerMOS) that is placed in <3.5mm> $times 2$ mm resonator and a complementary to absolute temperature sensor (implemented as a 1mm$times 1$ mm, 65nm integrated circuit), that are all held on a thermally conductive 7mm$times$ 7mm Si interposer.
{"title":"Achieving < ±25 ppb Frequency Stability With a ±0.125 °C Oven Control on a Si Interposer for an AlScN-on-Si Shear-BAW Resonator","authors":"Everestus Ezike;Ratul Kundu;Shaurya Dabas;Banafsheh Jabbari;Shruti Mishra;Dicheng Mo;Honggyu Kim;Zetian Mi;Roozbeh Tabrizian;Baibhab Chatterjee","doi":"10.1109/TCSI.2025.3590669","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3590669","url":null,"abstract":"A major challenge of long-term clock stability is frequency drift due to temperature variations. This paper describes the design of a proportional, integral, derivative (PID) control system for external ovenization of an AlScN-on-Si Shear-BAW Resonator (S<sup>3</sup>R), which has a fixed turnover temperature where the <inline-formula> <tex-math>$1{^{text {st}}}$ </tex-math></inline-formula> order temperature coefficient of frequency is <inline-formula> <tex-math>$approx 0$ </tex-math></inline-formula> ppm/°C. The control system provides <inline-formula> <tex-math>$pm ~0.125^{circ }$ </tex-math></inline-formula>C temperature stability and assists in achieving better than <inline-formula> <tex-math>$pm ~25$ </tex-math></inline-formula>ppb frequency stability over a temperature range of 15-40°C by maintaining resonator operation near the turnover temperature, where the <inline-formula> <tex-math>$2{^{text {nd}}}$ </tex-math></inline-formula> order temperature coefficient of frequency drift is -62.71ppb/°C<sup>2</sup>. The robust and adaptive PID algorithm (programmed on an external microcontroller unit connected to the interposer) ensures continuous ovenization by configuring the duty cycle of a compact heat actuator (powerMOS) that is placed in <3.5mm> <tex-math>$times 2$ </tex-math></inline-formula>mm resonator and a complementary to absolute temperature sensor (implemented as a 1mm<inline-formula> <tex-math>$times 1$ </tex-math></inline-formula>mm, 65nm integrated circuit), that are all held on a thermally conductive 7mm<inline-formula> <tex-math>$times$ </tex-math></inline-formula>7mm Si interposer.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"72 9","pages":"4455-4468"},"PeriodicalIF":5.2,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144918190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The main problem addressed in this paper is the controller design under composite switching in large-scale interconnected systems. Composite switching systems are widely present in large-scale cyber-physical systems, such as microgrids and industrial process control systems, motivating the need for scalable and efficient control methods. To this end, this paper develops an integrated model for a large-scale system formed by interconnecting individual subsystems, each of which is a composite switched system, and investigates the scalable control problem for such an interconnected composite switched system (ICSS), a unified switching signal governs all subsystems, where the signal is generated through a logical function driven by random variable inputs. First, the semi-tensor product (STP) technique, combined with the dimension expansion method, is used to compress the composite switching signal, treating it as part of the state and cascading it with the states of each subsystem. This results in a new system state and an expanded interconnected system model described in the form of a linear time-invariant (LTI) system. The key contributions of this paper include the establishment of an integrated model that captures the interconnection and composite switching behavior of the large-scale system, as well as the development of a scalable distributed state feedback control algorithm that leverages this unified model. Based on this, the LTI model of the interconnected large system under distributed state feedback control is provided. Next, the necessary and sufficient conditions for the mean-square stability of this large system are given, and the scalability and design method of the distributed state feedback strategy are implemented based on a recursive algorithm. Finally, quantitative simulation results based on a DC microgrid example demonstrate that system state trajectories decay to zero under allowable composite switching, confirming the theoretical mean-square stability and demonstrating the practical feasibility of the control framework.
{"title":"Integrated Model and Scalable Control of Interconnected Composite Switching System Based on Semi-Tensor Product","authors":"Yonghui Chen;Yang Song;Minrui Fei;Dajun Du;Chen Peng","doi":"10.1109/TCSI.2025.3590454","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3590454","url":null,"abstract":"The main problem addressed in this paper is the controller design under composite switching in large-scale interconnected systems. Composite switching systems are widely present in large-scale cyber-physical systems, such as microgrids and industrial process control systems, motivating the need for scalable and efficient control methods. To this end, this paper develops an integrated model for a large-scale system formed by interconnecting individual subsystems, each of which is a composite switched system, and investigates the scalable control problem for such an interconnected composite switched system (ICSS), a unified switching signal governs all subsystems, where the signal is generated through a logical function driven by random variable inputs. First, the semi-tensor product (STP) technique, combined with the dimension expansion method, is used to compress the composite switching signal, treating it as part of the state and cascading it with the states of each subsystem. This results in a new system state and an expanded interconnected system model described in the form of a linear time-invariant (LTI) system. The key contributions of this paper include the establishment of an integrated model that captures the interconnection and composite switching behavior of the large-scale system, as well as the development of a scalable distributed state feedback control algorithm that leverages this unified model. Based on this, the LTI model of the interconnected large system under distributed state feedback control is provided. Next, the necessary and sufficient conditions for the mean-square stability of this large system are given, and the scalability and design method of the distributed state feedback strategy are implemented based on a recursive algorithm. Finally, quantitative simulation results based on a DC microgrid example demonstrate that system state trajectories decay to zero under allowable composite switching, confirming the theoretical mean-square stability and demonstrating the practical feasibility of the control framework.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 3","pages":"2120-2132"},"PeriodicalIF":5.2,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147287873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-30DOI: 10.1109/TCSI.2025.3592025
Reham Haroun;Abdelali El Aroudi;Kuntal Mandal;Guidong Zhang;Zhen Li;Luis Martínez-Salamero
A switched-inductor (SL) multi-cell boost converter is analyzed in this paper for a high-voltage gain application, stepping up a dc voltage from 36 V to 380 V in the first stage of a photovoltaic (PV) conversion chain. A fast maximum power point tracker (MPPT), processing the system input voltage, is used to extract the maximum power from the PV generator regardless of atmospheric conditions. A single sliding-mode control (SMC) loop forces the PV generator voltage to follow the maximum power point (MPP) voltage provided by a Perturb and Observe (P&O) algorithm. The sliding-mode analysis uses the equivalent control approach to demonstrate that the linearized ideal sliding dynamics are unconditionally stable. Theoretical predictions are corroborated by simulations and experimental measurements of the system under step-type changes in input irradiance and output load. The MPPT performance is experimentally evaluated against two classical approaches applied to a canonical boost converter: a current-based SMC and a voltage-based PWM. Both approaches track the MPP current and voltage, respectively, as given by the P&O algorithm. The proposed system outperforms the two classical systems, showing a better tracking accuracy.
{"title":"Fast Single-Loop Voltage-Based MPPT Using Sliding-Mode Control for Switched-Inductor Multi-Cell Boost Converters","authors":"Reham Haroun;Abdelali El Aroudi;Kuntal Mandal;Guidong Zhang;Zhen Li;Luis Martínez-Salamero","doi":"10.1109/TCSI.2025.3592025","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3592025","url":null,"abstract":"A switched-inductor (SL) multi-cell boost converter is analyzed in this paper for a high-voltage gain application, stepping up a dc voltage from 36 V to 380 V in the first stage of a photovoltaic (PV) conversion chain. A fast maximum power point tracker (MPPT), processing the system input voltage, is used to extract the maximum power from the PV generator regardless of atmospheric conditions. A single sliding-mode control (SMC) loop forces the PV generator voltage to follow the maximum power point (MPP) voltage provided by a Perturb and Observe (P&O) algorithm. The sliding-mode analysis uses the equivalent control approach to demonstrate that the linearized ideal sliding dynamics are unconditionally stable. Theoretical predictions are corroborated by simulations and experimental measurements of the system under step-type changes in input irradiance and output load. The MPPT performance is experimentally evaluated against two classical approaches applied to a canonical boost converter: a current-based SMC and a voltage-based PWM. Both approaches track the MPP current and voltage, respectively, as given by the P&O algorithm. The proposed system outperforms the two classical systems, showing a better tracking accuracy.","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"73 1","pages":"671-684"},"PeriodicalIF":5.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11104276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-29DOI: 10.1109/TCSI.2025.3588373
{"title":"IEEE Circuits and Systems Society Information","authors":"","doi":"10.1109/TCSI.2025.3588373","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3588373","url":null,"abstract":"","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"72 8","pages":"C3-C3"},"PeriodicalIF":5.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11099064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MWSCAS Guest Editorial Special Issue Based on the 67th International Midwest Symposium on Circuits and Systems","authors":"Marvin Onabajo;Susana Patón;Bibhu Datta Sahoo;Hanjun Jiang","doi":"10.1109/TCSI.2025.3579508","DOIUrl":"https://doi.org/10.1109/TCSI.2025.3579508","url":null,"abstract":"","PeriodicalId":13039,"journal":{"name":"IEEE Transactions on Circuits and Systems I: Regular Papers","volume":"72 8","pages":"3731-3732"},"PeriodicalIF":5.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11099040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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