Haifeng Wei

Permanent magnet synchronous motors (PMSM) are widely used in industrial manufacturing, transportation and household appliances because of their high power density and excellent performance. In consideration of reducing the size of the control device, cost reduction and system operational reliability, it is necessary to abandon the position sensor and realize the sensorless control of permanent magnet synchronous motor. At present, the magnetic chain observer method is one of the most commonly used and easy to implement algorithms for sensorless control of permanent magnet synchronous motors. However, there is a pure integration link in the magnetic chain observer method, which will bring a certain zero drift due to the sensor error or the dead time. The zero-drift compensation technique based on the chain observation method is investigated in this book. In addition, the maximum torque to current ratio control (MTPA) has the feature of high operating efficiency, so the permanent magnet synchronous motor often uses MTPA control at low speed operation, and often uses weak magnetic control at high speed.

Niniejsza publikacja powstala dzięki wsparciu Nantong Institute of Technology. Maszyna elektryczna, jako podstawowe urządzenie do elektromechanicznej konwersji energii, jest kamieniem węgielnym wsp lczesnej cywilizacji przemyslowej. Od wynalezienia silnika elektrycznego w XIX wieku do dnia dzisiejszego, każdy skok technologiczny w maszynach elektrycznych glęboko przeksztalcil ludzką produkcję i codzienne życie. W XXI wieku, wraz z nasilającym się kryzysem energetycznym i coraz większą troską o środowisko naturalne, opracowanie wydajnej i czystej technologii napędu elektrycznego stalo się globalnym konsensusem. W tym kontekście silnik synchroniczny z magnesami trwalymi (PMSM) staje się gl wnym wyborem dla system w napędu elektrycznego nowej generacji dzięki swoim wyjątkowym zaletom, takim jak wysoka sprawnośc, duża gęstośc mocy i wysoka niezawodnośc.

Cette publication a t rendue possible gr ce au soutien de l'Institut de technologie de Nantong. La machine lectrique, en tant que dispositif central de conversion lectrom canique de l' nergie, est la pierre angulaire de la civilisation industrielle moderne. Depuis l'invention du moteur lectrique au XIXe si cle jusqu' aujourd'hui, chaque avanc e technologique dans le domaine des machines lectriques a profond ment transform la production humaine et la vie quotidienne. Au XXIe si cle, alors que la crise nerg tique s'intensifie et que les pr occupations environnementales prennent de l'importance, le d veloppement d'une technologie de transmission lectrique efficace et propre est devenu un consensus mondial. Dans ce contexte, le moteur synchrone aimant permanent (PMSM) s'impose comme le choix le plus courant pour les syst mes d'entra nement lectrique de la prochaine g n ration, gr ce ses qualit s exceptionnelles de rendement lev , de densit de puissance lev e et de grande fiabilit .

Questa pubblicazione stata resa possibile grazie al sostegno del Nantong Institute of Technology. La macchina elettrica, in quanto dispositivo centrale per la conversione dell'energia elettromeccanica, la pietra miliare della moderna civilt industriale. Dall'invenzione del motore elettrico nel XIX secolo a oggi, ogni progresso tecnologico delle macchine elettriche ha trasformato profondamente la produzione umana e la vita quotidiana. Nel ventunesimo secolo, con l'intensificarsi della crisi energetica e l'accentuarsi delle preoccupazioni ambientali, lo sviluppo di una tecnologia di azionamento elettrico efficiente e pulita diventato un consenso globale. In questo contesto, il motore sincrono a magneti permanenti (PMSM) sta emergendo come la scelta principale per i sistemi di azionamento elettrico di prossima generazione, grazie ai suoi eccezionali meriti di alta efficienza, alta densit di potenza e alta affidabilit .

Diese Publikation wurde durch die Unterst tzung des Nantong Institute of Technology erm glicht. Die elektrische Maschine, als zentrales Element der elektromechanischen Energieumwandlung, ist der Grundstein der modernen Industriegesellschaft. Seit der Erfindung des Elektromotors im 19. Jahrhundert hat jeder technologische Fortschritt im Bereich der Elektrotechnik die menschliche Produktion und den Alltag grundlegend ver ndert. Im 21. Jahrhundert, in dem sich die Energiekrise versch rft und Umweltbedenken an Bedeutung gewinnen, ist die Entwicklung effizienter und sauberer elektrischer Antriebstechnologien zu einem globalen Konsens geworden. Vor diesem Hintergrund etabliert sich der Permanentmagnet-Synchronmotor (PMSM) dank seiner herausragenden Vorteile wie hoher Effizienz, hoher Leistungsdichte und hoher Zuverl ssigkeit als bevorzugte Antriebstechnologie der n chsten Generation.

Esta publica o foi poss vel gra as ao apoio do Instituto de Tecnologia de Nantong. A m quina el ctrica, como dispositivo central para a convers o eletromec nica de energia, a pedra angular da civiliza o industrial moderna. Desde a inven o do motor el trico no s culo XIX at aos dias de hoje, cada salto tecnol gico na maquinaria el ctrica transformou profundamente a produ o humana e a vida quotidiana. No s culo XXI, medida que a crise energ tica se intensifica e as preocupa es ambientais se tornam mais proeminentes, o desenvolvimento de uma tecnologia de acionamento el trico eficiente e limpa tornou-se um consenso global. Neste contexto, o motor s ncrono de manes permanentes (PMSM) est a emergir como a principal escolha para os sistemas de acionamento el trico da pr xima gera o, gra as aos seus excelentes m ritos de elevada efici ncia, elevada densidade de pot ncia e elevada fiabilidade.

In recent years, multi-phase permanent magnet synchronous motors, especially dual three-phase permanent magnet synchronous motors, have the advantages of higher output power, stronger fault tolerance and lower torque pulsation than the traditional three-phase permanent magnet synchronous motors, and have been used in many demanding applications, such as military and new energy vehicles. Dual three-phase permanent magnet synchronous motors have the three main characteristics of large output power under low-voltage operating conditions, high reliability and low torque pulsation compared with traditional three-phase motors. Although they provide more power and higher efficiency, they are also accompanied by the complexity and difficulty of control. The model predictive control method has become one of the main control strategies. However, as the number of phases of dual three-phase permanent magnet synchronous motors increases, their models and control strategies become complex. These complexities not only make the control more difficult, but also may lead to the increase of harmonic currents, which increases the losses of the motor.

With the continuous improvement of the level of science and technology, the ship to the intelligent, large-scale direction of development, as well as a large number of equipment upgrading, the modern ship ship on the ship more and more power equipment, power quality requirements are also more and more high, so the ship power station to withstand the pressure is also more and more big. As the ship power system is an important guarantee of ship safety, the reliability of ship power system is particularly important. The reliability of ship power system depends largely on whether the grid structure is reasonable, so the design of ship power system structure is a very worthwhile research issue. In addition, a set of highly reliable ship power system not only needs to consider the grid structure when designing, but also should consider how to quickly and effectively locate the fault and restore power supply when the fault occurs. Therefore, the fault recovery of ship power system is also an important research direction. Meanwhile, with the rapid development of China's shipping industry, the requirements for network, information and intelligence of ship management are getting higher.