Programming of the DSP2 board with the Matlab/Simulink

31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005.

Urlep

Polic

2005

Self Cite

In this paper the torque and speed sensorless PMSM control is presented. The main idea consists in utilizing the best qualities of the both nonlinear structures of the motor observer and the current controller. Motor observer is based on torque error between modelled and measured quantities. In addition, the rotor flux observer is using combination of the feedforward and feedback terms in order to enhance the sensitivity of the observer. Torque and flux control as well as the rotor flux observer are based on the sliding mode theory, which results in high degree of robustness towards parameters variation and the external disturbances. Proposed control scheme is implemented on DSP system extended with FPGA where event-driven current controlled modulator is realized. DSP serves for time discrete speed control and observer, while time critical current control is implemented on FPGA. Results demonstrate high efficiency of the proposed estimation and control method.

Section: Resultsmentioning

confidence: 99%

Speed sensorless variable structure torque control of PMSM

31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005.

Urlep

Polic

2005

Self Cite

“…Both AC machines are powered by corresponding MOSFET inverter each, supplied from the at parameter mismatch at different load torque with id = 10 A common DC link up to 60 V, provided by DC voltage source, to cover losses of the combined system. Each inverter is controlled by a separate control board consisting of floating point DSP TMS320C32 and field programmable gate array (FPGA) Xilinx XCS40PQ240, accompanied by interface logic and measurement devices [13]. The algorithms in FPGA can be applied combined with algorithms for DSP thus making entire system a flexible platform for testing both, algorithms for the DSP and also the FPGA.…”

Section: B Experimental Setupmentioning

confidence: 99%

Low and Zero Speed Sensorless Control of nonsalient PMSM

Urlep

2007 IEEE International Symposium on Industrial Electronics

2007

A speed sensorless control of nonsalient PMSM is demonstrated in this paper, where estimated rotor flux is directly utilized, instead of transformation angle. A discrete-time slidingmode current controller in stationary frame with EMF feedforward is employed. The operation at low speed is improved by reducing the disturbance impact. The estimation angle error at zero speed is limited by injecting additional DC current that compensates for the unknown load torque and enables operation at zero speed.

“…The door application uses the following tasks: The improved motion control algorithm (Fig. 5) is used [13] within the door's system. Feed-back control consists of three reference inputs (acceleration, speed, and position) that are given from the motion generator and two actual measure inputs (position, speed) that are given from the incremental encoder.…”

Section: Fig 3 Transition Matrixmentioning

confidence: 99%

Mechatronic Control System on a Finite-State Machine

Hanžič¹,

Cehner³

2013

Automatika

Original scientific paperThis paper describes design using state-transition methodology. This state-transition methodology is straightforward, with a simply-perceived relation between the programming and the corresponding sequential function. The current operational function of the system is described as the current state of the system using state-transition programming. The state transition diagram or table describes the current state and the conditions for transition. The operation is transferred to a corresponding destination state when a set of conditions become valid for leaving the current state. Thus, the sequential operation is explicit, and any continuous conditions scanning (from command source and sensors) only include those that are pertinent for leaving the current state. The methodology is highly-structured and efficient, the programming tasks are readily comprehensible, and fault diagnostics can be easily included within the program's structure. The presented application of an automatic sliding-door illustrates the feasibility of this approach. This paper presents the MFSM (Modular Finite-State Machine), the ECA (EventCondition-Action) system, motion generation, motion control with load estimation, and an example of a DSP (Digital Signal Processor) system. The limitations and attributes of each technique are discussed, and a state-table format is presented with the capability of representing parallel asynchronous sequential processes. Key words: FSM, Software design, Adaptive automatic door motion, State flow, DSPMehatronički sustav upravljanja na automatu s konačnim brojem stanja. U ovom radu opisan je dizajn koristeći metodu prijelaza stanja. Metoda prijelaza stanja je izravna metoda s jednostavnim odnosom izmeîu programiranja i odgovarajuće funkcije. Trenutna funkcija sustava opisana je kao trenutno stanje sustava koristeći programiranje s prijelazom stanja. Dijagram ili tablica prijelaza stanja opisuje trenutno stanje i uvjete prijelaza u drugo stanje. Ako su zadovoljeni uvjeti prijelaza sustav prelazi u odgovarajuće stanje. Dakle, slijed je definiran eksplicitno te provjera kontinuiranih stanja sustava (upravljački signal ili senzori) obuhvaća samo ona stanja koja su značajna za prijelaz u sljedeće stanje. Metodologija je dobro strukturirana i učinkovita, programski zadaci su lako razumljivi i prepoznavanje pogreške može se lako uključiti u strukturu programa. Izvodljivost ovog pristupa ilustrirana je na primjeru automatskih kliznih vrata. Ovaj rad prikazuje modularni automat s konačnim brojem stanja, dogaîajno uvjetovanu radnju, gibanje, upravljanje gibanjem s estimacijom tereta i primjer sustava s digitalnim signalnim procesorom. Komentirana su ograničenja i značajke svake od ovih metoda i prikazana je tablica stanja s mogućnošću prikazivanja paralelnih asinkronih slijednih procesa.Ključne riječi: automat s konačnim brojem stanja, dizajn softvera, adaptivno gibanje automatskih vrata, digitalni signalni procesor INTRODUCTIONHybrid systems [1], covering the heterogeneous continuous, and discr...