Article
Automation & Control Systems
Haifeng Zhang, Gang Liu, Xinxiu Zhou, Shiqiang Zheng
Summary: This article introduces a high-precision sensorless optimal commutation deviation correction strategy to address the asymmetry issues of back EMF in BLDC motors, with experimental tests confirming its effectiveness.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2021)
Article
Engineering, Electrical & Electronic
Hao Jin, Gang Liu, Haitao Li, Haifeng Zhang
Summary: This article introduces a closed-loop commutation error compensation strategy for BLDC motors with NAEMFs, aiming to improve torque performance and reduce power consumption. The strategy involves accurate commutation positions and parallel control loops for real-time correction of commutation errors, demonstrating effective results in experimental validation.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Automation & Control Systems
Haifeng Zhang, Haoting Wu, Hao Jin, Haitao Li
Summary: This article proposes a high-dynamic and low-cost sensorless control method for high-speed brushless DC motors (BLDCMs) using the built-in resources of the digital signal processor. The method involves constructing and detecting a variable related to the commutation moment, presenting a detailed commutation process based on the relationship between back electromotive force (back-EMF) integral and commutation point, and proposing an integral prediction method to cope with the effect of discrete sampling on commutation accuracy. Experimental tests on a magnetically suspended control moment gyroscope verify the effectiveness of the proposed method.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Automation & Control Systems
Ching-Lon Huang, Chi-Jun Wu, Shih-Chin Yang
Summary: This article presents the improvement of sensorless BLdc motor drives using PAM with DC current sensing. The proposed continuous position estimation helps to minimize issues like voltage spike at low speed and commutation delay at high speed. Experimental verification on a 320-W permanent magnet motor prototype shows improved low-speed dynamic response and high-speed steady state stability.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Automation & Control Systems
Ziyan Zhao, Chuxiong Hu, Ze Wang, Shuaihu Wu, Zhijin Liu, Yu Zhu
Summary: This article proposes a novel back EMF-based mover position estimator that achieves consistent high accuracy in the entire speed range. The three-phase flux linkages are obtained by directly calculating the integration of back EMF. To overcome the curve drift caused by the integrator, jumping correction and uniform correction algorithms are proposed. The experimental results demonstrate that the proposed position estimator guarantees stability and accuracy in the whole speed range, with a sub-200 μm accuracy regardless of the reference trajectory, which has exciting prospects in industrial applications.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2023)
Article
Engineering, Aerospace
Bo Tan, Xingyuan Guo, Jun Zhao, Xiaofeng Ding, Wei Fang
Summary: This paper proposes a strategy to reduce Internal Power Angle (IPA) by using a ZCP detection method and a PI regulator, which can improve system efficiency and eliminate sampling errors.
CHINESE JOURNAL OF AERONAUTICS
(2022)
Article
Engineering, Electrical & Electronic
Zhongxin Wan, Song Huang, Chong Zeng, Yong Liao
Summary: A commutation torque ripple suppression strategy for brushless DC motors (BLDCM) is proposed in this paper. The strategy comprehensively considers the effects of non-commutation current and commutation time on commutation torque ripple, and optimizes it by modulating the duty cycles. Experimental results show that the proposed strategy can effectively reduce commutation torque ripple and shorten commutation time.
IET ELECTRIC POWER APPLICATIONS
(2023)
Article
Automation & Control Systems
Hao Jin, Gang Liu, Haifeng Zhang, Lirong Deng, Shiqiang Zheng
Summary: This article develops a commutation auto-correction method to achieve high-precision commutation in sensorless brushless dc motors. Three challenges of the conventional correction method have been addressed, ensuring accurate commutation in various conditions. Experimental results on a magnetically suspended turbo molecular pump confirm the effectiveness of the auto-correction method.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2022)
Article
Automation & Control Systems
Zhewu Jia, Qinghu Zhang, Dong Wang
Summary: The CWBLdc motor is a novel permanent magnet motor with high torque density and excellent vibration performance, showing great potential in high power and performance applications. However, its control depends on precise rotor position, which can be challenging in situations where position sensors cannot be installed. A sensorless control algorithm based on phase voltages and dc current detection is proposed in this paper, allowing for continuous and precise rotor position determination without the need for sensors. The experimental results demonstrate that the proposed sensorless control algorithm performs equivalently to control with position sensors.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Xiaoguang Wang, Xiaofeng Li, Jian Ge, Guoguang Zhang, Wei Xu
Summary: This article proposes a new winding structure with nonuniform distributed coils for coreless axial flux permanent-magnet machine (CAFPM), which can effectively reduce the time harmonics of back electromotive force (EMF) and increase the working efficiency.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Automation & Control Systems
Hao Jin, Gang Liu, Haifeng Zhang, Baodong Chen
Summary: This article introduces a novel commutation error closed-loop compensation method for sensorless brushless DC motors, addressing the challenge of conventional methods failing without an available ADC. The method utilizes logic level transformation and an iterative compensation algorithm to achieve high-precision closed-loop compensation, using only a general-purpose input/output of the digital processor. Experimental validation on a magnetically suspended control moment gyro prototype confirms the effectiveness of the proposed method.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2022)
Article
Automation & Control Systems
Hao Jin, Gang Liu, Shiqiang Zheng
Summary: This article presents a closed-loop correction method using hardware-based floating phase back electromotive force (EMF) integration to eliminate the commutation error in position sensorless brushless dc motor. By designing a novel hardware configuration, the integral can be obtained accurately even at high motor speed, achieving precise commutation.
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
(2022)
Article
Engineering, Electrical & Electronic
Dongdong Zhao, Xipo Wang, Bo Tan, Liangcai Xu, Cong Yuan, Yigeng Huangfu
Summary: A novel compensation method for commutation errors in brushless direct current (BLDC) motors is proposed in this paper, which calculates compensation time and obtains start-stop signals through virtual neutral voltage, achieving faster compensation speed and higher precision without the need for sensors.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2021)
Article
Computer Science, Information Systems
Ibrahim Mohd Alsofyani, Sadeq Ali Qasem Mohammed
Summary: This study investigates the impact of position information on torque performance for an interior permanent magnet synchronous motor (IPMSM) driven by finite set-predictive torque control (FS-PTC). The sensitive rotor position of IPMSMs during motor operation can lead to poor prediction of motor drive performance. The performance of FS-PTC using speed encoder and senseless extended electromotive force (EMF) estimation is evaluated and compared with respect to speed and load conditions. The sensorless FS-PTC using the EMF method has superior torque performance and THD reduction compared to the measured speed-based PTC, especially under large load torque.
Article
Engineering, Electrical & Electronic
Runhui Yao, Jin Zhou, Jinwei Shi, Yangyi Ling, Qiqi Jiang
Summary: In this article, an improved adaptive full-order sliding-mode observer (FSMO) is proposed for sensorless control of high-speed PMSM to enhance the estimation accuracy of rotor speed and position. The proposed FSMO incorporates a model-referenced adaptive electrical angular velocity and back EMF observer, which directly feeds back the estimated electrical angular velocity to reduce noise and chattering, resulting in significantly improved estimation accuracy of rotor speed and position. Experimental results using a 3 kW high-speed PMSM demonstrate the feasibility and superiority of the proposed method.
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
(2023)
Article
Engineering, Multidisciplinary
Pavitra Shukl, Bhim Singh
Summary: This paper presents the charging of electric vehicles using a common DC bus charging infrastructure based on hybrid renewable energy sources. The operation of charging and discharging EVs in grid presence/absence modes is enabled by bidirectional power flow. The use of current and voltage control mechanisms, along with static transfer switches, ensures satisfactory operation during grid availability/unavailability. The power quality improvement is achieved through the utilization of an adaptive comb-filter based current control in compliance with IEEE standards.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Engineering, Multidisciplinary
Farheen Chishti, Bhim Singh
Summary: In this study, the grid synchronization control, islanded microgrid operation, and power assurance to residential/critical loads are ensured for each stage of microgrid operation. The microgrid consists of photovoltaic and wind power generation units to power consumer loads in both grid-connected and grid-disconnected conditions. The variability of resources is managed by a battery energy storage unit, allowing for easy power flow between the microgrid and loads. Power electronic-based static transfer switches execute the mode of operation, controlled by a developed algorithm. This algorithm includes two major control algorithms for detecting grid outage and extracting load fundamental current. The control and microgrid operation are verified through Matlab/simulation results and experimental validation using a laboratory-developed prototype.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Utsav Sharma, Bhim Singh
Summary: A bidirectional charger for low-voltage battery-powered vehicles is discussed, providing effective performance with a wide output voltage range. The charger utilizes a modified-SEPIC as the back-end converter, which improves bidirectional operation and effectively regulates battery current for both 48V and 120V vehicles. Performance verification and comparison are conducted.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Engineering, Electrical & Electronic
Abhishek Kumar, Rashmi Jain, Bhim Singh, Seema Kewat
Summary: This paper presents a grid connected solar PV-battery system using a double stage topology. The ESOGI-based control estimates the positive sequence components of grid voltages, the amplitude of grid voltages, and unit templates. The VSC converts DC power to AC power and provides constant power to the grid under a predefined power mode. VSC also performs multiple functions like balancing grid currents, harmonics elimination, and providing reactive power compensation. Moreover, the BDC control maintains the voltage at the DC link and battery current. At low insolation levels, the battery supplies power to the load under a predefined power mode, and also supplies power to the grid under a predefined power mode condition. Simulated and experimental results demonstrate good performance under various dynamic conditions.
ELECTRICAL ENGINEERING
(2023)
Article
Automation & Control Systems
Mohd Kashif, Bhim Singh
Summary: Typically, a current sensor and encoder are used in a PV array fed PM synchronous motor based water pumping system for MPPT and rotor speed estimation, respectively. This article presents a multistage model reference adaptive control (MS-MRAC) for encoderless operation, which eliminates the need for these sensors. The MS-MRAC is a three-stage structure that estimates motor speed, resistance, and PM flux linkages. The effectiveness of this control technique is demonstrated through simulation and experimental validation.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Multidisciplinary
Yashi Singh, Bhim Singh, Sukumar Mishra
Summary: This work presents a hybrid control method for inverters in a single-phase AC grid-interactive photovoltaic microgrid. The method uses three cascaded loops for control and enables seamless mode transitions. The controller regulates grid current and output voltage in different modes. The method is suitable for parallel-operated single-stage systems with independent MPPT and battery energy storage.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Thermodynamics
Niranjan Rao Deevela, Bhim Singh, Tara C. Kandpal
Summary: This paper presents the results of a HOMER-based techno-economic assessment of an electricity supply option using a hybrid system of PV, diesel generator, and the electricity grid. The study analyzes electricity unavailability data for 132 locations in India and estimates the net present cost and cost of electricity for 25 selected locations, comparing them with values for the conventional grid+DG system. The inclusion of PV results in lower NPC and CoE values for the proposed system at all locations.
Article
Engineering, Multidisciplinary
Himansu Sahoo, Santanu Kapat, Bhim Singh
Summary: Due to its flexibility of realization in decentralized form, environmentally friendly nature, and easy integration with renewable energy sources, storage units, and loads, the direct current (DC) microgrid has gained widespread attention. This article analyzes the implementation of a mixed-signal peak current information-based droop control logic for the parallel connected converter system, considering the coupling effect during converter operation. The accuracy and performance of the designed model are verified through simulation studies and a hardware prototype.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Article
Engineering, Multidisciplinary
Muhammad Zarkab Farooqi, Bhim Singh, Bijaya Ketan Panighiri
Summary: This article presents a modified unit-template based model predictive control method and a DC-link feedforward control method to improve input power quality, enhance dynamic performance, and reduce secondary-side ripple for low-valued DC-link capacitance AC-DC converters.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2023)
Proceedings Paper
Green & Sustainable Science & Technology
Chandrakala Devi Sanjenbam, Bhim Singh
Summary: This paper presents the integration of a unified power quality conditioner (UPQC) with a self-excited induction generator (SEIG) based standalone hydroelectric power generation (HPG) system. The UPQC device is used to mitigate power quality issues caused by varying loading conditions and frequency variations in the SEIG. The UPQC includes two separate voltage source converters (VSCs) to regulate the harmonics and voltage quality at the load terminals, while simultaneously enhancing current quality, power factor, and reactive power at the source side. An enhanced generalized integrator (EGI) control scheme is employed to extract fundamental signals for nonlinear load currents waveform. The effectiveness of power quality improvement is analyzed and the source currents and load voltages conform to the IEEE-519 standard.
2023 IEEE IAS GLOBAL CONFERENCE ON RENEWABLE ENERGY AND HYDROGEN TECHNOLOGIES, GLOBCONHT
(2023)
Proceedings Paper
Green & Sustainable Science & Technology
Purusharth Semwal, Vivek Narayanan, Bhim Singh, B. K. Panigrahi
Summary: To reduce water pollution, integrating non-conventional energy sources into the marine sector is an effective solution. This paper evaluates the performance of an emission-free marine microgrid under different operational conditions. Using the MATLAB-Simulink platform, an emission-free ferry is developed with a battery energy storage, solar photovoltaic system, propulsion motors, and service loads, and operated in various sea conditions. By employing a power management system and Black Widow Optimization, stability and regulation of the power system are ensured. The dual second-order generalized integrator and modified quasi type1 phase-locked loop are used for cold ironing mode to synchronize the ferry with the shore power system and provide distortion-free current.
2023 IEEE IAS GLOBAL CONFERENCE ON RENEWABLE ENERGY AND HYDROGEN TECHNOLOGIES, GLOBCONHT
(2023)
Proceedings Paper
Green & Sustainable Science & Technology
Shubhra, Bhim Singh
Summary: In this research, a control method is presented for three phase four wire paralleled inverters based microgrid with solar photovoltaic arrays and battery for buildings. Two PV arrays are connected to voltage source converters and utilize unique maximum power point tracking techniques. The main VSC operates in grid intertie state via current control technique, while the ancillary VSC always operates by current control under the regulation of voltage control. The microgrid behavior is analyzed under dynamic situations and shows satisfactory performance.
2023 IEEE IAS GLOBAL CONFERENCE ON RENEWABLE ENERGY AND HYDROGEN TECHNOLOGIES, GLOBCONHT
(2023)
Article
Automation & Control Systems
Chandrakala Devi Sanjenbam, Bhim Singh
Summary: This article introduces a universal active power filter (UAPF) that is applied in a standalone hydroelectric system to improve voltage and current quality simultaneously. The system utilizes an improved control algorithm to enhance power quality for nonlinear loads.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
C. M. Nirmal Mukundan, Syed Bilal Qaiser Naqvi, Bhim Singh, P. Jayaprakash
Summary: This paper presents a novel grid integration control, named frequency adaptive generalized integral (FAGI) algorithm, for a three-phase four-wire solar power transfer system (SPTS). The control method compensates for reactive power, harmonics and DC offset demands, eliminates grid neutral current and maximizes PV array power injection. An enhanced incremental conductance (EIC) algorithm is used for peak power extraction. The system control is designed to meet load requirements and maintain grid power quality.
ELECTRIC POWER SYSTEMS RESEARCH
(2023)
Proceedings Paper
Automation & Control Systems
Vipin Kumar Singh, Bhim Singh
Summary: This paper presents the analysis and optimization of the switched reluctance motor (SRM) for ceiling fans. By conducting a detailed parametric analysis and using Taguchi algorithm, the critical motor parameters were selected and an optimal design was achieved through DOE. The effectiveness of the optimized design was verified using finite element analysis.
2023 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE, IEMDC
(2023)
