13 research outputs found
Maximum torque-per-Amp control for traction IM drives: theory and experimental results
A novel maximum torque per Ampere (MTPA) controller for induction motor (IM) drives is presented. It is shown to be highly suited to applications that do not demand an extremely fast dynamic response, for example electric vehicle drives. The proposed MTPA field oriented controller guarantees asymptotic torque (speed) tracking of smooth reference trajectories and maximises the torque per Ampere ratio when the developed torque is constant or slow varying. An output-feedback linearizing concept is employed for the design of torque and flux subsystems to compensate for the torque-dependent flux variations required to satisfy the MTPA condition. As a first step, a linear approximation of the IM magnetic system is considered. Then, based on a standard saturated IM model, the nonlinear static MTPA relationships for the rotor flux are derived as a function of the desired torque, and a modified torque-flux controller for the saturated machine is developed. The flux reference calculation method to achieve simultaneously an asymptotic field orientation, torque-flux decoupling and MTPA optimization in steady state is proposed. The method guarantees singularity-free operation and can be used as means to improve stator current transients. Experimental tests prove the accuracy of the control over a full torque range and show successful compensation of the magnetizing inductance variations caused by saturation. The proposed MTPA control algorithm also demonstrates a decoupling of the torque (speed) and flux dynamics to ensure asymptotic torque tracking. In addition, a higher torque per Ampere ratio is achieved together with an improved efficiency of electromechanical energy conversion
Maximum torque-per-amp tracking control of saturated induction motors
An improved maximum torque per Ampere (MTPA) controller for induction motor (IM) drives is presented. The proposed MTPA field oriented controller guarantees asymptotic torque tracking of smooth reference trajectories and maximises the torque per Ampere ratio when the developed torque is constant or slow varying. Due to use closed loop flux observer and high-gain PI controllers for both stator current components the proposed solution provides improved robustness with respect to parameters variations and inverter non-idealities. Experimental tests prove the accuracy of the proposed control over a full torque range. In addition, a higher torque per Ampere ratio is achieved together with an improved efficiency of electromechanical energy conversion
Dynamic output feedback linearizing control of saturated induction motors with torque per ampere ratio maximization
The paper presents a novel maximum torque per Ampere (MTA) controller for induction motor (IM) drives. The proposed controller exploits the concept of direct (observer based) field orientation and guarantees asymptotic torque tracking of smooth reference trajectories and maximizes the torque per Ampere ratio when the developed torque is constant or slowly varying. A dynamic output-feedback linearizing technique is employed for the torque subsystem design. In order to improve torque tracking accuracy a motor magnetizing curve is taken into account during MTA optimization and controller design.
The achieved steady-state system efficiency have been compared experimentally for three types of controllers, namely: standard vector control with constant flux operation, controller based on classic maximization of torque per Ampere ratio for linear magnetic circuit and controller based on MTA strategy for saturated induction motor. It is shown experimentally that the controller designed for saturated induction motor provides not only higher torque per Ampere ratio but also increases power factor and reduces active power consumption hence improving the drive efficiency. Operation with slowly varying torque references has also been analysed. It is shown that the proposed controller is suitable for applications that do not demand an extremely fast dynamic response, for example for electric vehicle drives
Indirect field-oriented torque control of induction motors with maximum torque per ampere ratio
Π Π΄Π°Π½ΡΠΉ ΡΡΠ°ΡΡΡ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ Π½ΠΎΠ²Ρ ΡΠ΅ΠΎΡΠ΅ΡΠΈΡΠ½Ρ ΡΠ° Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π² Π³Π°Π»ΡΠ·Ρ Π²Π΅ΠΊΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΠΈΠΌΠΈ Π΄Π²ΠΈΠ³ΡΠ½Π°ΠΌΠΈ. Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½ΠΎ Π½ΠΎΠ²ΠΈΠΉ Π°Π»Π³ΠΎΡΠΈΡΠΌ Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ ΡΡΡΡΠΌΠΎΠ²ΠΎΠ³ΠΎ Π²Π΅ΠΊΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ ΠΌΠΎΠΌΠ΅Π½ΡΠΎΠΌ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π΄Π²ΠΈΠ³ΡΠ½Π°, ΡΠΊΠΈΠΉ Π³Π°ΡΠ°Π½ΡΡΡ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½Π΅ ΡΠΏΡΠ²Π²ΡΠ΄Π½ΠΎΡΠ΅Π½Π½Ρ ΠΌΠΎΠΌΠ΅Π½Ρ-ΡΡΡΡΠΌ Π² ΡΡΡΠ°Π»Π΅Π½ΠΈΡ
ΡΠ΅ΠΆΠΈΠΌΠ°Ρ
ΡΠΎΠ±ΠΎΡΠΈ. ΠΠ°ΠΏΡΠΎ-ΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΈΠΉ Π°Π»Π³ΠΎΡΠΈΡΠΌ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΡΡ Π΄ΠΎΡΡΠ°ΡΠ½ΡΠΎ Π²ΠΈΡΠΎΠΊΡ Π΄ΠΈΠ½Π°ΠΌΡΡΠ½Ρ ΠΏΠΎΠΊΠ°Π·Π½ΠΈΠΊΠΈ ΡΠ΅Π³ΡΠ»ΡΠ²Π°Π½Π½Ρ ΠΌΠΎΠΌΠ΅Π½ΡΡ, ΡΠΎ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΠ΅Π½ΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΡΠ²Π°Π½Π½Ρ ΡΠ° Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ.The paper reports new theoretical and experimental results in vector control of induction motors. A novel indirect field-oriented torque tracking controller is designed for current fed induction machine, which guarantees maximal torque per Ampere ratio during steady state. The proposed controller assures quite fast dynamics in the torque response. Results of simulation and experimental tests illustrate important features of the control proposed.Π ΡΡΠΎΠΉ ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ Π½ΠΎΠ²ΡΠ΅ ΡΠ΅ΠΎΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π² ΠΎΠ±Π»Π°ΡΡΠΈ Π²Π΅ΠΊΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΡΠΌΠΈ Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»ΡΠΌΠΈ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½ Π½ΠΎΠ²ΡΠΉ Π°Π»Π³ΠΎΡΠΈΡΠΌ Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ ΡΠΎΠΊΠΎΠ²ΠΎΠ³ΠΎ Π²Π΅ΠΊΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΌΠΎΠΌΠ΅Π½ΡΠΎΠΌ Π°ΡΠΈΠ½Ρ
ΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π΄Π²ΠΈΠ³Π°ΡΠ΅Π»Ρ, ΠΊΠΎΡΠΎΡΡΠΉ Π³Π°ΡΠ°Π½ΡΠΈΡΡΠ΅Ρ ΠΌΠ°ΠΊΡΠΈΠΌΡΠΌ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ ΠΌΠΎΠΌΠ΅Π½Ρ-ΡΠΎΠΊ Π² ΡΡΡΠ°Π½ΠΎΠ²ΠΈΠ²ΡΠΈΡ
ΡΡ ΡΠ΅ΠΆΠΈΠΌΠ°Ρ
ΡΠ°Π±ΠΎΡΡ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΉ Π°Π»Π³ΠΎΡΠΈΡΠΌ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ Π²ΡΡΠΎΠΊΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈ ΠΊΠ°ΡΠ΅ΡΡΠ²Π° ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΌΠΎΠΌΠ΅Π½ΡΠ°, ΡΡΠΎ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π΅Π½ΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠΌΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡΠΌΠΈ
Robust indirect field oriented control of induction generator
The paper presents a novel robust field oriented vector control for induction generators. The proposed controller exploits the concept of indirect field orientation and guarantees asymptotic DC-link voltage regulations when DC-load is constant or slowly varying. An output-feedback linearizing Lyapunovβs based technique is employed for the voltage controller design. Flux subsystem design provides robustness with respect to rotor resistance variations. Decomposition of the voltage and current-flux subsystems, based on the two-time scale separation, allows to use a simple controllers tuning procedure.
Results of comparative experimental study with standard indirect field oriented control are presented. It is shown that in contrast to existing solutions designed controller provides system performances stabilization when speed and flux are varying. Experimentally shown that robust field oriented controller ensures robust flux regulation and robust stabilization of the torque current dynamics leading to improved energy efficiency of the electromechanical conversion process. Proposed controller is suitable for energy generation systems with variable speed operation
Dynamic performances of the shunt active power filter control system
ΠΠ°ΡΠΌΠΎΠ½ΡΡΠ½Ρ ΡΠΏΠΎΡΠ²ΠΎΡΠ΅Π½Π½Ρ Π² Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΈΡ
ΠΌΠ΅ΡΠ΅ΠΆΠ°Ρ
Ρ Π΄ΠΎΠ±ΡΠ΅ Π²ΡΠ΄ΠΎΠΌΠΈΠΌΠΈ ΡΠ° Π΄ΠΎΡΡΠ°ΡΠ½ΡΠΎ Π²ΠΈΠ²ΡΠ΅Π½ΠΈΠΌΠΈ ΡΠ²ΠΈΡΠ°ΠΌΠΈ. Π‘ΠΈΠ»ΠΎΠ²ΠΈΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΈΠΉ ΡΡΠ»ΡΡΡ Π²ΠΈΠ·Π½Π°Π½ΠΎ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π½ΠΈΠΌ Π·Π°ΡΠΎΠ±ΠΎΠΌ Π΄Π»Ρ Π·Π°Π΄ΠΎΠ²ΠΎΠ»Π΅Π½Π½Ρ Π²ΠΈΠΌΠΎΠ³ Π½ΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΈΡ
Π΄ΠΎΠΊΡΠΌΠ΅Π½ΡΡΠ², ΡΠΎ ΡΠ΅Π³ΡΠ»ΡΡΡΡ ΡΠΊΡΡΡΡ Π΅Π»Π΅ΠΊΡΡΠΎΠ΅Π½Π΅ΡΠ³ΡΡ. ΠΠ΅Π·Π²Π°ΠΆΠ°ΡΡΠΈ Π½Π° ΡΠ΅ΠΉ ΡΠ°ΠΊΡ, ΡΡ
Π½Ρ ΠΏΡΠ°ΠΊΡΠΈΡΠ½Π° ΡΠ΅Π°Π»ΡΠ·Π°ΡΡΡ Π΄ΠΎΡΡ ΠΏΠΎΠ²βΡΠ·Π°Π½Π° Π·Ρ Π·Π½Π°ΡΠ½ΠΈΠΌΠΈ ΡΠΊΠ»Π°Π΄Π½ΠΎΡΡΡΠΌΠΈ. ΠΠΎΠΊΡΠ΅ΠΌΠ°, Π² ΡΡΠ½ΡΡΡΠΈΡ
ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
Π΄Π»Ρ ΠΎΡΡΠ½ΡΠ²Π°Π½Π½Ρ Π³Π°ΡΠΌΠΎΠ½ΡΡΠ½ΠΎΠ³ΠΎ ΡΠΊΠ»Π°Π΄Ρ ΡΡΡΡΠΌΡ ΠΌΠ΅ΡΠ΅ΠΆΡ, ΡΠΊ ΠΏΡΠ°Π²ΠΈΠ»ΠΎ, Π²ΠΈΠΊΠΎΡΠΈΡΡΠΎΠ²ΡΡΡΡΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΡΠ²ΠΈΠ΄ΠΊΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΠ΅Π½Π½Ρ Π€ΡΡβΡ Π°Π±ΠΎ ΠΌΠ΅ΡΠΎΠ΄ΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΡΠ΅ΠΎΡΡΡ ΠΌΠΈΡΡΡΠ²ΠΎΡ ΠΏΠΎΡΡΠΆΠ½ΠΎΡΡΡ. ΠΡΠΎΡΠ΅ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ ΡΠ²ΠΈΠ΄ΠΊΠΎΠ³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠ²ΠΎΡΠ΅Π½Π½Ρ Π€ΡΡβΡ Π²ΠΈΠΌΠ°Π³Π°Ρ Π²ΠΈΡΠΎΠΊΠΎΡ ΠΎΠ±ΡΠΈΡΠ»ΡΠ²Π°Π»ΡΠ½ΠΎΡ Π·Π΄Π°ΡΠ½ΠΎΡΡΡ ΡΠΈΡΡΠ΅ΠΌΠΈ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ Π· ΠΎΠ΄Π½ΡΡΡ ΡΡΠΎΡΠΎΠ½ΠΈ, Π° Π·Π°ΡΡΠΎΡΡΠ²Π°Π½Π½Ρ ΡΠ΅ΠΎΡΡΡ ΠΌΠΈΡΡΡΠ²ΠΎΡ ΠΏΠΎΡΡΠΆΠ½ΠΎΡΡΡ Π·Π½Π°ΡΠ½ΠΎ ΠΏΡΠ΄Π²ΠΈΡΡΡ Π²ΠΈΠΌΠΎΠ³ΠΈ Π΄ΠΎ ΡΠΈΠ»ΠΎΠ²ΠΎΡ ΡΠ°ΡΡΠΈΠ½ΠΈ Π°ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΡΠ»ΡΡΡΠ°. ΠΠ°ΡΡΠΎΡΡΠ²Π°Π½Π½Ρ ΡΠ½ΡΠΎΠ³ΠΎ ΠΏΡΠ΄Ρ
ΠΎΠ΄Ρ β ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΡΡ Π³Π°ΡΠΌΠΎΠ½ΡΠΊ, Π΄Π°Ρ ΠΌΠΎΠΆΠ»ΠΈΠ²ΡΡΡΡ Π·ΠΌΠ΅Π½ΡΠΈΡΠΈ Π²ΠΈΠΌΠΎΠ³ΠΈ Π΄ΠΎ ΠΎΠ±ΡΠΈΡΠ»ΡΠ²Π°Π»ΡΠ½ΠΎΡ ΠΏΠΎΡΡΠΆΠ½ΠΎΡΡΡ ΡΠ° Π·Π½Π°ΡΠ½ΠΎ ΡΠΏΡΠΎΡΡΠΈΡΠΈ ΡΠ΅Ρ
Π½ΡΡΠ½Ρ ΡΠ΅Π°Π»ΡΠ·Π°ΡΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΡΠ»ΡΡΡΠ° Ρ ΠΏΡΠΈ ΡΡΠΎΠΌΡ Π΄ΠΎΡΡΠ³ΡΠΈ ΠΏΡΠΈΠΉΠ½ΡΡΠ½ΠΎΠ³ΠΎ ΡΡΠ²Π½Ρ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΡΡ ΡΠΏΠΎΡΠ²ΠΎΡΠ΅Π½Ρ. Π ΡΡΠ°ΡΡΡ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΈ ΡΠΎΠ·ΡΠΎΠ±ΠΊΠΈ ΡΠ° Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ ΡΠΈΡΡΠ΅ΠΌΠΈ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ ΡΠΈΠ»ΠΎΠ²ΠΈΠΌ Π°ΠΊΡΠΈΠ²Π½ΠΈΠΌ ΡΡΠ»ΡΡΡΠΎΠΌ. ΠΠ°ΠΏΡΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½Π° ΡΠΈΡΡΠ΅ΠΌΠ° ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ ΡΠΊΠ»Π°Π΄Π°ΡΡΡΡΡ ΡΠ· ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠΏΠΎΡΡΠ΅ΡΡΠ³Π°ΡΠ° Π³Π°ΡΠΌΠΎΠ½ΡΠΊ, Π»ΡΠ½Π΅Π°ΡΠΈΠ·ΡΡΡΠΎΠ³ΠΎ Π·Π²ΠΎΡΠΎΡΠ½ΠΈΠΌ Π·Π²βΡΠ·ΠΊΠΎΠΌ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠ° ΡΡΡΡΠΌΡΠ², ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠ° Π½Π°ΠΏΡΡΠ³ΠΈ Π»Π°Π½ΠΊΠΈ ΠΏΠΎΡΡΡΠΉΠ½ΠΎΠ³ΠΎ ΡΡΡΡΠΌΡ ΡΡΠ»ΡΡΡΠ° ΡΠ° ΡΠΏΠΎΡΡΠ΅ΡΡΠ³Π°ΡΠ° Π½Π°ΠΏΡΡΠ³ΠΈ ΠΌΠ΅ΡΠ΅ΠΆΡ. Π‘ΠΏΠΎΡΡΠ΅ΡΡΠ³Π°Ρ Π³Π°ΡΠΌΠΎΠ½ΡΠΊ, ΡΠΊΠΈΠΉ Π½Π°Π»Π°ΡΡΠΎΠ²Π°Π½ΠΎ Π²ΡΠ΄ΠΏΠΎΠ²ΡΠ΄Π½ΠΎ Π΄ΠΎ ΡΠΏΡΠΎΡΠ΅Π½ΠΎΡ ΠΏΡΠΎΡΠ΅Π΄ΡΡΠΈ, Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΡΡ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½Π΅ Π²ΠΈΡΠ²Π»Π΅Π½Π½Ρ Π²ΠΈΡΠΈΡ
Π³Π°ΡΠΌΠΎΠ½ΡΠΊ ΡΡΡΡΠΌΡ ΠΌΠ΅ΡΠ΅ΠΆΡ ΡΠ° ΡΠΎΡΠΌΡΡ Π·Π°Π²Π΄Π°Π½Π½Ρ Π½Π° ΡΡΡΡΠΌ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΡΡ, ΡΠΊΠ΅ Π²ΡΠ΄ΠΏΡΠ°ΡΡΠΎΠ²ΡΡΡΡΡΡ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠ°ΠΌΠΈ ΡΡΡΡΠΌΡΠ². ΠΠ΅Π»ΡΠ½ΡΠΉΠ½ΠΈΠΉ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡ Π½Π°ΠΏΡΡΠ³ΠΈ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΡΡ Π°ΡΠΈΠΌΠΏΡΠΎΡΠΈΡΠ½Π΅ ΡΠ΅Π³ΡΠ»ΡΠ²Π°Π½Π½Ρ ΡΠ΅ΡΠ΅Π΄Π½ΡΠΎΠ³ΠΎ Π·Π½Π°ΡΠ΅Π½Π½Ρ Π½Π°ΠΏΡΡΠ³ΠΈ Π»Π°Π½ΠΊΠΈ ΠΏΠΎΡΡΡΠΉΠ½ΠΎΠ³ΠΎ ΡΡΡΡΠΌΡ Π‘ΠΠ€, ΡΠΎΠ·Π²βΡΠ·Π°Π½Π΅ Π· ΠΏΡΠΎΡΠ΅ΡΠΎΠΌ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΡΡ ΡΡΡΡΠΌΡΠ². ΠΠ΄Π°ΠΏΡΠΈΠ²Π½ΠΈΠΉ ΡΠΏΠΎΡΡΠ΅ΡΡΠ³Π°Ρ Π½Π°ΠΏΡΡΠ³ΠΈ ΠΌΠ΅ΡΠ΅ΠΆΡ Π½Π°Π΄Π°Ρ ΡΠ½ΡΠΎΡΠΌΠ°ΡΡΡ ΠΏΡΠΎ Π°ΠΌΠΏΠ»ΡΡΡΠ΄Ρ, ΡΠ°ΡΡΠΎΡΡ ΠΎΠ±Π΅ΡΡΠ°Π½Π½Ρ ΡΠ° ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½Ρ Π²Π΅ΠΊΡΠΎΡΠ° Π½Π°ΠΏΡΡΠ³ΠΈ ΠΌΠ΅ΡΠ΅ΠΆΡ. ΠΠ°ΠΏΡΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½Ρ ΡΠΈΡΡΠ΅ΠΌΡ ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ ΡΠ΅Π°Π»ΡΠ·ΠΎΠ²Π°Π½ΠΎ Π½Π° ΡΠΈΡΡΠΎΠ²ΠΎΠΌΡ ΡΠΈΠ³Π½Π°Π»ΡΠ½ΠΎΠΌΡ ΠΏΡΠΎΡΠ΅ΡΠΎΡΡ TMS320F28335 ΡΠ° Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½ΠΎ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π΅ΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΈΡ
Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΡΠ°Π·ΠΎΠΌ ΡΠ· ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΌΠΎΠ΄Π΅Π»ΡΠ²Π°Π½Π½Ρ ΠΏΡΠ΄ΡΠ²Π΅ΡΠ΄ΠΆΡΡΡΡ Π΅ΡΠ΅ΠΊΡΠΈΠ²Π½ΡΡΡΡ Π·Π°ΠΏΡΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΎΠ³ΠΎ ΡΡΡΠ΅Π½Π½Ρ. Π ΠΎΠ·ΡΠΎΠ±Π»Π΅Π½Π° ΡΠΈΡΡΠ΅ΠΌΠ° ΠΊΠ΅ΡΡΠ²Π°Π½Π½Ρ ΠΌΠΎΠΆΠ΅ Π±ΡΡΠΈ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½ΠΎΡ Π΄Π»Ρ ΡΠ΅Π°Π»ΡΠ·Π°ΡΡΡ ΡΠΈΠ»ΠΎΠ²ΠΈΡ
Π°ΠΊΡΠΈΠ²Π½ΠΈΡ
ΡΡΠ»ΡΡΡΡΠ².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 of distortion compensation. In this paper, the shunt active power filter control system is designed and investigated. Proposed control system consist of selective harmonics observer, feedback-linearizing current controller, dc-link controller and mains voltage observer. Harmonics observer is tuned according to simplified approach, provides selective estimation of the load current harmonics and produce the compensation current reference for the current controller. Nonlinear dc-link voltage controller guarantees decoupled from current compensation process asymptotic regulation of the average dc-link voltage. Mains voltage vector adaptive observer provides magnitude, angular position and frequency estimation. Proposed control system is implemented on digital signal processor TMS320F28335 end verified experimentally. Results of experimental investigations together with results of simulations confirm effectiveness of proposed solution. Developed control system can be used for shunt active filters implementation.ΠΠ°ΡΠΌΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΡΠΊΠ°ΠΆΠ΅Π½ΠΈΡ Π² ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅ΡΡΡ
β Ρ
ΠΎΡΠΎΡΠΎ ΠΈΠ·Π²Π΅ΡΡΠ½ΡΠ΅ ΠΈ Π΄ΠΎΡΡΠ°ΡΠΎΡΠ½ΠΎ ΠΈΠ·ΡΡΠ΅Π½Π½ΡΠ΅ ΡΠ²Π»Π΅Π½ΠΈΡ. Π‘ΠΈΠ»ΠΎΠ²ΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΡΠΉ ΡΠΈΠ»ΡΡΡ ΠΏΡΠΈΠ·Π½Π°Π½ΠΎ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌ ΡΡΠ΅Π΄ΡΡΠ²ΠΎΠΌ Π΄Π»Ρ ΡΠ΄ΠΎΠ²Π»Π΅ΡΠ²ΠΎΡΠ΅Π½ΠΈΡ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΠΉ Π½ΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΡΡ
Π΄ΠΎΠΊΡΠΌΠ΅Π½ΡΠΎΠ², ΡΠ΅Π³ΡΠ»ΠΈΡΡΡΡΠΈΡ
ΠΊΠ°ΡΠ΅ΡΡΠ²ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΡΠ½Π΅ΡΠ³ΠΈΠΈ. ΠΠ΅ΡΠΌΠΎΡΡΡ Π½Π° ΡΡΠΎΡ ΡΠ°ΠΊΡ, ΠΈΡ
ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡ Π²ΡΠ΅ Π΅ΡΠ΅ ΡΠ²ΡΠ·Π°Π½Π° ΡΠΎ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΡΠΌΠΈ ΡΠ»ΠΎΠΆΠ½ΠΎΡΡΡΠΌΠΈ. Π ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ, Π² ΡΡΡΠ΅ΡΡΠ²ΡΡΡΠΈΡ
ΡΠΈΡΡΠ΅ΠΌΠ°Ρ
Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ Π³Π°ΡΠΌΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΎΡΡΠ°Π²Π° ΡΠΎΠΊΠ° ΡΠ΅ΡΠΈ, ΠΊΠ°ΠΊ ΠΏΡΠ°Π²ΠΈΠ»ΠΎ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π±ΡΡΡΡΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π€ΡΡΡΠ΅ ΠΈΠ»ΠΈ ΠΌΠ΅ΡΠΎΠ΄Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠ΅ΠΎΡΠΈΠΈ ΠΌΠ³Π½ΠΎΠ²Π΅Π½Π½ΠΎΠΉ ΠΌΠΎΡΠ½ΠΎΡΡΠΈ. ΠΠ΄Π½Π°ΠΊΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ Π±ΡΡΡΡΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π€ΡΡΡΠ΅ ΡΡΠ΅Π±ΡΠ΅Ρ Π²ΡΡΠΎΠΊΠΎΠΉ Π²ΡΡΠΈΡΠ»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Ρ ΠΎΠ΄Π½ΠΎΠΉ ΡΡΠΎΡΠΎΠ½Ρ, Π° ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠ΅ΠΎΡΠΈΠΈ ΠΌΠ³Π½ΠΎΠ²Π΅Π½Π½ΠΎΠΉ ΠΌΠΎΡΠ½ΠΎΡΡΠΈ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΏΠΎΠ²ΡΡΠ°Π΅Ρ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ ΡΠΈΠ»ΠΎΠ²ΠΎΠΉ ΡΠ°ΡΡΠΈ Π°ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠΈΠ»ΡΡΡΠ°. ΠΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π΄ΡΡΠ³ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄Π° - ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΈΠΈ Π³Π°ΡΠΌΠΎΠ½ΠΈΠΊ, Π΄Π°Π΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΌΠ΅Π½ΡΡΠΈΡΡ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ Π²ΡΡΠΈΡΠ»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΠΌΠΎΡΠ½ΠΎΡΡΠΈ ΠΈ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠΏΡΠΎΡΡΠΈΡΡ ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΡΡ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ ΡΠΈΠ»ΡΡΡΠ° ΠΈ ΠΏΡΠΈ ΡΡΠΎΠΌ Π΄ΠΎΡΡΠΈΡΡ ΠΏΡΠΈΠ΅ΠΌΠ»Π΅ΠΌΠΎΠ³ΠΎ ΡΡΠΎΠ²Π½Ρ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΈΠΈ ΠΈΡΠΊΠ°ΠΆΠ΅Π½ΠΈΠΉ. Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠΈΠ»ΠΎΠ²ΡΠΌ Π°ΠΊΡΠΈΠ²Π½ΡΠΌ ΡΠΈΠ»ΡΡΡΠΎΠΌ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Π°Ρ ΡΠΈΡΡΠ΅ΠΌΠ° ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠΎΡΡΠΎΠΈΡ ΠΈΠ· ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π½Π°Π±Π»ΡΠ΄Π°ΡΠ΅Π»Ρ Π³Π°ΡΠΌΠΎΠ½ΠΈΠΊ, Π»ΠΈΠ½Π΅Π°ΡΠΈΠ·ΡΡΡΠ΅Π³ΠΎ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΡΠ²ΡΠ·ΡΡ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠ° ΡΠΎΠΊΠΎΠ², ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠ° Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ Π·Π²Π΅Π½Π° ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠ³ΠΎ ΡΠΎΠΊΠ° ΡΠΈΠ»ΡΡΡΠ° ΠΈ Π½Π°Π±Π»ΡΠ΄Π°ΡΠ΅Π»Ρ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ. ΠΠ°Π±Π»ΡΠ΄Π°ΡΠ΅Π»Ρ Π³Π°ΡΠΌΠΎΠ½ΠΈΠΊ, ΠΊΠΎΡΠΎΡΡΠΉ Π½Π°ΡΡΡΠΎΠ΅Π½ Π² ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΠΈΠΈ Ρ ΡΠΏΡΠΎΡΠ΅Π½Π½ΠΎΠΉ ΠΏΡΠΎΡΠ΅Π΄ΡΡΠΎΠΉ, ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΠ΅ Π²ΡΡΡΠΈΡ
Π³Π°ΡΠΌΠΎΠ½ΠΈΠΊ ΡΠΎΠΊΠ° ΡΠ΅ΡΠΈ ΠΈ ΡΠΎΡΠΌΠΈΡΡΠ΅Ρ Π·Π°Π΄Π°Π½ΠΈΡ Π½Π° ΡΠΎΠΊ ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΈΠΈ, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΎΡΡΠ°Π±Π°ΡΡΠ²Π°Π΅ΡΡΡ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡΠ°ΠΌΠΈ ΡΠΎΠΊΠΎΠ². ΠΠ΅Π»ΠΈΠ½Π΅ΠΉΠ½ΡΠΉ ΡΠ΅Π³ΡΠ»ΡΡΠΎΡ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ Π°ΡΠΈΠΌΠΏΡΠΎΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠ΅Π³ΡΠ»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ΅Π΄Π½Π΅Π³ΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΡ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ Π·Π²Π΅Π½Π° ΠΏΠΎΡΡΠΎΡΠ½Π½ΠΎΠ³ΠΎ ΡΠΎΠΊΠ° Π‘ΠΠ€, ΡΠ°Π·Π²ΡΠ·Π°Π½Π½ΠΎΠ΅ ΠΎΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΊΠΎΠΌΠΏΠ΅Π½ΡΠ°ΡΠΈΠΈ ΡΠΎΠΊΠΎΠ². ΠΠ΄Π°ΠΏΡΠΈΠ²Π½ΡΠΉ Π½Π°Π±Π»ΡΠ΄Π°ΡΠ΅Π»Ρ Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ ΡΠ΅ΡΠΈ ΠΏΡΠ΅Π΄ΠΎΡΡΠ°Π²Π»ΡΠ΅Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ ΠΎΠ± Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Π΅, ΡΠ°ΡΡΠΎΡΠ΅ Π²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΈ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠΈ Π²Π΅ΠΊΡΠΎΡΠ° Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΡ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΡ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½ΠΎ Π½Π° ΡΠΈΡΡΠΎΠ²ΠΎΠΌ ΡΠΈΠ³Π½Π°Π»ΡΠ½ΠΎΠΌ ΠΏΡΠΎΡΠ΅ΡΡΠΎΡΠ΅ TMS320F28335 ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π²ΠΌΠ΅ΡΡΠ΅ Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ ΡΠ΅ΡΠ΅Π½ΠΈΡ. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½Π°Ρ ΡΠΈΡΡΠ΅ΠΌΠ° ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Π° Π΄Π»Ρ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΡΠΈΠ»ΠΎΠ²ΡΡ
Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΈΠ»ΡΡΡΠΎΠ²
Dynamic output feedback linearizing control of saturated induction motors with torque per ampere ratio maximization
The paper presents a novel maximum torque per Ampere (MTA) controller for induction motor (IM) drives. The proposed controller exploits the concept of direct (observer based) field orientation and guarantees asymptotic torque tracking of smooth reference trajectories and maximizes the torque per Ampere ratio when the developed torque is constant or slowly varying. A dynamic output-feedback linearizing technique is employed for the torque subsystem design. In order to improve torque tracking accuracy a motor magnetizing curve is taken into account during MTA optimization and controller design.
The achieved steady-state system efficiency have been compared experimentally for three types of controllers, namely: standard vector control with constant flux operation, controller based on classic maximization of torque per Ampere ratio for linear magnetic circuit and controller based on MTA strategy for saturated induction motor. It is shown experimentally that the controller designed for saturated induction motor provides not only higher torque per Ampere ratio but also increases power factor and reduces active power consumption hence improving the drive efficiency. Operation with slowly varying torque references has also been analysed. It is shown that the proposed controller is suitable for applications that do not demand an extremely fast dynamic response, for example for electric vehicle drives
Vector control of induction motor drives using matrix converter
A new development of vector control for induction motor drives using matrix converter is presented. The proposed new direct field-oriented controller permits to achieve asymptotic speed and flux tracking in presence of unknown load torque. A new combined SVPWM and matrix converter switches communication strategy is proposed. The results of simulation and experimental tests confirm the high dynamic performance of the induction motor drive