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Papers by Sergei Peresada
Tekhnichna Elektrodynamika
Torque ripple compensation problem is considered for electrical drives, based on low-cost direct ... more Torque ripple compensation problem is considered for electrical drives, based on low-cost direct drive interior perma-nent magnet synchronous motors. Robustness properties of the speed and position control systems have been studied using time scale separation properties of the current, speed and position control loops. It is shown that system closed-loop dynamics according to new controller design has cascaded properties with speed and position control loops con-nected in series and therefore has potential of high frequency torque ripple compensation by increasing controllers gains. Experimental results are presented for two motors with similar rated data but significantly different level of the torque ripple. It is shown that despite of significand difference in parasitic torque amplitude, the similar position con-trol performance can be achieved. It makes proposed control algorithms suitable for both high dynamic performance and low-cost direct drive applications with medium perfo...
Tekhnichna Elektrodynamika
A flux observer for induction motors which is adaptive to the active rotor resistance variations ... more A flux observer for induction motors which is adaptive to the active rotor resistance variations is presented. Due to the added fluxes overestimation in the observer structure, the global exponential stability properties of the current and flux vector components and active rotor resistance estimation are ensured under conditions of persistency of excitation. The proposed observer has a simpler structure compared to existing solutions with the global stability properties. The simulation results of the observer dynamic performance investigation confirm its effectiveness. It is shown that even if the conditions of persistency of excitation are not met, the active rotor resistance is estimated correctly; consequently, the designed observer can be implemented as an identification algorithm in self-commissioning systems of induction electric drives. References 9, figures 5.
Tehnìčna elektrodinamìka, Jan 31, 2024
In order to compensate the higher order current harmonics caused by the operation of a number of ... more In order to compensate the higher order current harmonics caused by the operation of a number of non-linear loads, the modern semiconductor converters called active power filters are used. The principle of operation of active power filter is to generate to the electrical grid a compensation current which is equal to the distortion currents in magnitude and opposite to the sign. To form the compensation current, it is necessary to perform an analysis of the harmonic stuff of the distorted current in real time. In this paper, the results of design of discrete-time harmonic stuff estimator for three-phase network are presented. Proposed estimator is based on isolation of positive and negative sequences of each harmonics and provides asymptotic estimation of mains current harmonic stuff. During this study, the current of the network has a non-sinusoidal form, and in its spectrum consists of 20 higher harmonics. It is shown that observer tuning, based on the choice of a damping factor, p...
Пересада, С. М. Метод визначення електричних параметрів явнополюсних синхронних двигунів = Identi... more Пересада, С. М. Метод визначення електричних параметрів явнополюсних синхронних двигунів = Identification method of electrical parameters of the interior permanent magnets synchronous motors / С. М. Пересада, Є. О. Ніконенко, В. С. Решетник // Зб. наук. пр. НУК. – Миколаїв : НУК, 2019. – № 2 (476). – С. 14–21.Анотація. Робота присвячена питанням розробки та дослідження нового методу визначення статичних та інкрементальних індуктивностей, а також значення магнітного потоку постійних магнітів явнополюсних синхронних двигунів із постійними магнітами при самоналаштуванні. Обґрунтовано актуальність розробки методів ідентифікації електричних параметрів явнополюсних синхронних двигунів при самоналаштуванні синхронних електроприводів. Розроблений метод ідентифікації електричних параметрів явнополюсних синхронних двигунів базується на визначенні оцінених значень потокозчеплень двигуна в замкненій системі регулювання струмів із властивостями робастності до неідеальностей інвертора. Для верифі...
Наведено результати порівняльного експериментального тестування алгоритмів частотного і векторног... more Наведено результати порівняльного експериментального тестування алгоритмів частотного і векторного керування моментом асинхронного двигуна. Показано переваги застосування систем векторного керування в електроприводах транспортних засобів
Visnyk of Vinnytsia Politechnical Institute, 2021
2021 IEEE 3rd Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2021
A new sensorless speed control algorithm for surface mounted permanent magnet synchronous motors ... more A new sensorless speed control algorithm for surface mounted permanent magnet synchronous motors is presented. State observer is designed for speed and position estimation, and its stability is proved using the second Lyapunov method. If vector control algorithm is used for speed control, observer can be slightly modified to achieve the controller performance that is suitable for high dynamic applications. The effectiveness of designed sensorless speed control algorithm is demonstrated by simulations.
2021 IEEE 3rd Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2021
A new algorithm for self-commissioning procedure of DC-DC boost converters is presented. It is ba... more A new algorithm for self-commissioning procedure of DC-DC boost converters is presented. It is based on closed-loop adaptive observer of the converter model in average coordinates and provides identification of parameters namely: resistance and inductance of input inductor and DC-link capacitance. The rigorous proof of stability for physical operating conditions is given based on second Lyapunov method. Simulation results show fast convergence of the estimation errors.
Tekhnichna Elektrodynamika, 2016
Tekhnichna Elektrodynamika, 2022
A speed observer for field-oriented controlled induction drives is presented. The proposed soluti... more A speed observer for field-oriented controlled induction drives is presented. The proposed solution exploits the concept of the classic full-order flux observer which is adaptive to the rotor resistance variations. Due to the structural similarity of the rotor speed and active rotor resistance in motor model, the speed observer can be designed using similar structure. The observer guarantees local asymptotic estimation of the rotor fluxes, stator currents and rotor speed in all operating conditions, excluding DC stator excitation. The stability properties of the observer are studied using Lyapunov’s second method. It is experimentally shown that the observer provides an acceptable dynamics of the speed estimation if speed is slowly varying. The proposed observer is suitable for the applications with medium requirements for speed regulation performance. References 13, figures 5.
Applied Aspects of Information Technology, 2021
Harmonic pollution of the electrical mains is well known and well-studied phenomena. Active power... more Harmonic pollution of the electrical mains is well known and well-studied phenomena. Active power filter being a powerful tool to meet the requirements of regulatory documents regulating the electricity quality. Despite this fact, practical implementation of the active power filter is still connected with significant difficulties. In particular, existing systems typically use fast Fourier transform methods or instantaneous power theory to estimate the harmonic composition of the mains current. However, the use of fast Fourier transform requires high computing power of the control system, and the implementation of the theory of instantaneous power significantly increases the requirements for the power part of the active filter. The application of another approach - selective compensation of harmonics, makes it possible to reduce computational requirements and significantly simplify the technical implementation of the active filter and at the same time to achieve an acceptable level o...
Energies
The accurate magnetic model is mandatory for high-performance control of high anisotropy synchron... more The accurate magnetic model is mandatory for high-performance control of high anisotropy synchronous machines. This paper presents a time-efficient and accurate magnetic model identification based on triangle current injection while the machine under the test is driven at a constant speed by a prime mover. The current injection pattern allows scanning the whole range of current, reducing the identification time compared to the standard constant-speed method (CSM) with the same level of accuracy. The ohmic voltage drop and inverter nonlinearities are compensated by using the average voltage of motor and generator modes. The synchronous reluctance machine is used as a case study for validation through the comparison between the experimental results obtained by the proposed method and the CSM against finite element simulation. Moreover, the temperature variation of the machine winding is measured showing no considerable changes during the identification test.
2020 IEEE 40th International Conference on Electronics and Nanotechnology (ELNANO)
This paper develops a novel algorithm for interior permanent magnet synchronous motors (IPMSM) pa... more This paper develops a novel algorithm for interior permanent magnet synchronous motors (IPMSM) parameters identification for a self-commissioning procedure. The proposed algorithm is based on adaptive current controllers with robustness properties to inverter nonlinearities. It guarantees the stator resistance and inductances asymptotic estimation with permanent magnets flux if the conditions of persistency of excitation are provided. The validity of the conclusions is confirmed by the coincidence of the simulation study results with the experimental data.
2020 IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP)
The research methodology of electric vehicles electromechanical systems consisting of synchronous... more The research methodology of electric vehicles electromechanical systems consisting of synchronous electric drives and hybrid energy storages is developed. The simulation platform for investigation of the complete electromechanical system is validated on the base of separate experimental tests of the hybrid energy storage system and vector-controlled interior permanent magnet synchronous motor drive. The simulation testing results of the most spread topologies of energy storage for electric vehicles based on batteries and supercapacitors are given. The load for energy storages is calculated based on the experimental transients of a drive system. The integrals of squared battery current and its rate of change are compared to analyze the battery ageing characteristics.
2021 24th International Conference on Electrical Machines and Systems (ICEMS)
High-performance sensorless synchronous reluctance drives (SynRel) require self-commissioning dur... more High-performance sensorless synchronous reluctance drives (SynRel) require self-commissioning during the drive start-up to identify a magnetic model (flux maps) of the machine taking into account the saturation and the cross-saturation phenomena. Generally, the stator flux linkage is calculated based on the stator voltage integration. Inverter nonlinear voltage errors mainly caused by dead-time and on-state voltage drops deteriorate the voltage estimation that decreases the flux estimation accuracy. This paper presents a comprehensive study of inverter nonlinearity effects on flux maps identification and its compensation strategy.
2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)
Tekhnichna Elektrodynamika
Torque ripple compensation problem is considered for electrical drives, based on low-cost direct ... more Torque ripple compensation problem is considered for electrical drives, based on low-cost direct drive interior perma-nent magnet synchronous motors. Robustness properties of the speed and position control systems have been studied using time scale separation properties of the current, speed and position control loops. It is shown that system closed-loop dynamics according to new controller design has cascaded properties with speed and position control loops con-nected in series and therefore has potential of high frequency torque ripple compensation by increasing controllers gains. Experimental results are presented for two motors with similar rated data but significantly different level of the torque ripple. It is shown that despite of significand difference in parasitic torque amplitude, the similar position con-trol performance can be achieved. It makes proposed control algorithms suitable for both high dynamic performance and low-cost direct drive applications with medium perfo...
Tekhnichna Elektrodynamika
A flux observer for induction motors which is adaptive to the active rotor resistance variations ... more A flux observer for induction motors which is adaptive to the active rotor resistance variations is presented. Due to the added fluxes overestimation in the observer structure, the global exponential stability properties of the current and flux vector components and active rotor resistance estimation are ensured under conditions of persistency of excitation. The proposed observer has a simpler structure compared to existing solutions with the global stability properties. The simulation results of the observer dynamic performance investigation confirm its effectiveness. It is shown that even if the conditions of persistency of excitation are not met, the active rotor resistance is estimated correctly; consequently, the designed observer can be implemented as an identification algorithm in self-commissioning systems of induction electric drives. References 9, figures 5.
Tehnìčna elektrodinamìka, Jan 31, 2024
In order to compensate the higher order current harmonics caused by the operation of a number of ... more In order to compensate the higher order current harmonics caused by the operation of a number of non-linear loads, the modern semiconductor converters called active power filters are used. The principle of operation of active power filter is to generate to the electrical grid a compensation current which is equal to the distortion currents in magnitude and opposite to the sign. To form the compensation current, it is necessary to perform an analysis of the harmonic stuff of the distorted current in real time. In this paper, the results of design of discrete-time harmonic stuff estimator for three-phase network are presented. Proposed estimator is based on isolation of positive and negative sequences of each harmonics and provides asymptotic estimation of mains current harmonic stuff. During this study, the current of the network has a non-sinusoidal form, and in its spectrum consists of 20 higher harmonics. It is shown that observer tuning, based on the choice of a damping factor, p...
Пересада, С. М. Метод визначення електричних параметрів явнополюсних синхронних двигунів = Identi... more Пересада, С. М. Метод визначення електричних параметрів явнополюсних синхронних двигунів = Identification method of electrical parameters of the interior permanent magnets synchronous motors / С. М. Пересада, Є. О. Ніконенко, В. С. Решетник // Зб. наук. пр. НУК. – Миколаїв : НУК, 2019. – № 2 (476). – С. 14–21.Анотація. Робота присвячена питанням розробки та дослідження нового методу визначення статичних та інкрементальних індуктивностей, а також значення магнітного потоку постійних магнітів явнополюсних синхронних двигунів із постійними магнітами при самоналаштуванні. Обґрунтовано актуальність розробки методів ідентифікації електричних параметрів явнополюсних синхронних двигунів при самоналаштуванні синхронних електроприводів. Розроблений метод ідентифікації електричних параметрів явнополюсних синхронних двигунів базується на визначенні оцінених значень потокозчеплень двигуна в замкненій системі регулювання струмів із властивостями робастності до неідеальностей інвертора. Для верифі...
Наведено результати порівняльного експериментального тестування алгоритмів частотного і векторног... more Наведено результати порівняльного експериментального тестування алгоритмів частотного і векторного керування моментом асинхронного двигуна. Показано переваги застосування систем векторного керування в електроприводах транспортних засобів
Visnyk of Vinnytsia Politechnical Institute, 2021
2021 IEEE 3rd Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2021
A new sensorless speed control algorithm for surface mounted permanent magnet synchronous motors ... more A new sensorless speed control algorithm for surface mounted permanent magnet synchronous motors is presented. State observer is designed for speed and position estimation, and its stability is proved using the second Lyapunov method. If vector control algorithm is used for speed control, observer can be slightly modified to achieve the controller performance that is suitable for high dynamic applications. The effectiveness of designed sensorless speed control algorithm is demonstrated by simulations.
2021 IEEE 3rd Ukraine Conference on Electrical and Computer Engineering (UKRCON), 2021
A new algorithm for self-commissioning procedure of DC-DC boost converters is presented. It is ba... more A new algorithm for self-commissioning procedure of DC-DC boost converters is presented. It is based on closed-loop adaptive observer of the converter model in average coordinates and provides identification of parameters namely: resistance and inductance of input inductor and DC-link capacitance. The rigorous proof of stability for physical operating conditions is given based on second Lyapunov method. Simulation results show fast convergence of the estimation errors.
Tekhnichna Elektrodynamika, 2016
Tekhnichna Elektrodynamika, 2022
A speed observer for field-oriented controlled induction drives is presented. The proposed soluti... more A speed observer for field-oriented controlled induction drives is presented. The proposed solution exploits the concept of the classic full-order flux observer which is adaptive to the rotor resistance variations. Due to the structural similarity of the rotor speed and active rotor resistance in motor model, the speed observer can be designed using similar structure. The observer guarantees local asymptotic estimation of the rotor fluxes, stator currents and rotor speed in all operating conditions, excluding DC stator excitation. The stability properties of the observer are studied using Lyapunov’s second method. It is experimentally shown that the observer provides an acceptable dynamics of the speed estimation if speed is slowly varying. The proposed observer is suitable for the applications with medium requirements for speed regulation performance. References 13, figures 5.
Applied Aspects of Information Technology, 2021
Harmonic pollution of the electrical mains is well known and well-studied phenomena. Active power... more Harmonic pollution of the electrical mains is well known and well-studied phenomena. Active power filter being a powerful tool to meet the requirements of regulatory documents regulating the electricity quality. Despite this fact, practical implementation of the active power filter is still connected with significant difficulties. In particular, existing systems typically use fast Fourier transform methods or instantaneous power theory to estimate the harmonic composition of the mains current. However, the use of fast Fourier transform requires high computing power of the control system, and the implementation of the theory of instantaneous power significantly increases the requirements for the power part of the active filter. The application of another approach - selective compensation of harmonics, makes it possible to reduce computational requirements and significantly simplify the technical implementation of the active filter and at the same time to achieve an acceptable level o...
Energies
The accurate magnetic model is mandatory for high-performance control of high anisotropy synchron... more The accurate magnetic model is mandatory for high-performance control of high anisotropy synchronous machines. This paper presents a time-efficient and accurate magnetic model identification based on triangle current injection while the machine under the test is driven at a constant speed by a prime mover. The current injection pattern allows scanning the whole range of current, reducing the identification time compared to the standard constant-speed method (CSM) with the same level of accuracy. The ohmic voltage drop and inverter nonlinearities are compensated by using the average voltage of motor and generator modes. The synchronous reluctance machine is used as a case study for validation through the comparison between the experimental results obtained by the proposed method and the CSM against finite element simulation. Moreover, the temperature variation of the machine winding is measured showing no considerable changes during the identification test.
2020 IEEE 40th International Conference on Electronics and Nanotechnology (ELNANO)
This paper develops a novel algorithm for interior permanent magnet synchronous motors (IPMSM) pa... more This paper develops a novel algorithm for interior permanent magnet synchronous motors (IPMSM) parameters identification for a self-commissioning procedure. The proposed algorithm is based on adaptive current controllers with robustness properties to inverter nonlinearities. It guarantees the stator resistance and inductances asymptotic estimation with permanent magnets flux if the conditions of persistency of excitation are provided. The validity of the conclusions is confirmed by the coincidence of the simulation study results with the experimental data.
2020 IEEE Problems of Automated Electrodrive. Theory and Practice (PAEP)
The research methodology of electric vehicles electromechanical systems consisting of synchronous... more The research methodology of electric vehicles electromechanical systems consisting of synchronous electric drives and hybrid energy storages is developed. The simulation platform for investigation of the complete electromechanical system is validated on the base of separate experimental tests of the hybrid energy storage system and vector-controlled interior permanent magnet synchronous motor drive. The simulation testing results of the most spread topologies of energy storage for electric vehicles based on batteries and supercapacitors are given. The load for energy storages is calculated based on the experimental transients of a drive system. The integrals of squared battery current and its rate of change are compared to analyze the battery ageing characteristics.
2021 24th International Conference on Electrical Machines and Systems (ICEMS)
High-performance sensorless synchronous reluctance drives (SynRel) require self-commissioning dur... more High-performance sensorless synchronous reluctance drives (SynRel) require self-commissioning during the drive start-up to identify a magnetic model (flux maps) of the machine taking into account the saturation and the cross-saturation phenomena. Generally, the stator flux linkage is calculated based on the stator voltage integration. Inverter nonlinear voltage errors mainly caused by dead-time and on-state voltage drops deteriorate the voltage estimation that decreases the flux estimation accuracy. This paper presents a comprehensive study of inverter nonlinearity effects on flux maps identification and its compensation strategy.
2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)