scholarly journals A Novel Optimal Current Trajectory Control Strategy of IPMSM Considering the Cross Saturation Effects

Energies ◽  
2017 ◽  
Vol 10 (10) ◽  
pp. 1460 ◽  
Author(s):  
Huimin Li ◽  
Jian Gao ◽  
Shoudao Huang ◽  
Peng Fan
Keyword(s):  
Control Strategy ◽  
Trajectory Control ◽  
Optimal Current ◽  
The Cross ◽  
Saturation Effects

scholarly journals Dynamic DC-link Voltage Adjustment for Electric Vehicles Considering the Cross Saturation Effects

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2046 ◽  
Author(s):  
Huimin Li ◽  
Shoudao Huang ◽  
Derong Luo ◽  
Jian Gao ◽  
Peng Fan
Keyword(s):  
Control Strategy ◽  
Reference Signal ◽  
Cross Coupling ◽  
Torque Control ◽  
Maximum Efficiency ◽  
Magnetic Saturation ◽  
Speed Range ◽  
The Cross ◽  
Bus Voltage ◽  
Saturation Effects

The demands of remarkable reliability and high power density of traction systems are becoming more and more rigorous. The conflicting requirements imposed on the control strategy are higher accuracy and higher efficiency over the whole speed range. However, parameter variations caused by the cross coupling and magnetic saturation effect (omitted from the cross saturation effects in the following) are usually neglected in conventional control strategies, which could reduce the control precision. In order to fully consider the influence of parameter changes on the motor control and derive an approach that could realize the maximum efficiency during the whole speed range, this paper proposes a dynamic DC-link voltage adjustment strategy considering the cross coupling and magnetic saturation effects. The strategy can be categorized into three parts. Firstly, the torque request is transformed to the optimal current reference signal. Secondly, the differences between the setpoint and the real-time feedback signals of torque and voltage can be applied in the linearized function in the did,q coordinate. The solution guides the current vector into the optimal direction under the current and voltage limits to ensure the safety and reliability of the motor. Finally, last, the bus voltage can be modified according to the asked terminal voltage. A 10 kW prototype which instrumented a bidirectional DC-DC converter to regulating the bus voltage has been studied. The simulation and experiment results verify that the proposed control strategy can reduce the inverter losses in low speed region by offering the low bus voltage and track the actual maximum torque control trace more accurately, meanwhile, the flux weakening region can be delayed in high speed region by applying a high bus voltage. It helps the motor realize the high utilization rate of the DC-link voltage and guarantees the system reliability and robustness.

New Optimal Current Control Strategy for Six-Phase DC-Biased Vernier Reluctance Machines Considering Distorted EMF

2018 ◽  
Vol 33 (12) ◽  
pp. 10633-10645 ◽  
Author(s):  
Zixiang Yu ◽  
Dawei Li ◽  
Wubin Kong ◽  
Ronghai Qu ◽  
Shaofeng Jia ◽  
...  
Keyword(s):  
Control Strategy ◽  
Current Control ◽  
Optimal Current

An Optimal Current Control Strategy for Asymmetrical Hybrid Multilevel Inverters

2018 ◽  
Vol 54 (5) ◽  
pp. 4425-4436 ◽  
Author(s):  
Salvatore Foti ◽  
Salvatore De Caro ◽  
Giacomo Scelba ◽  
Tommaso Scimone ◽  
Antonio Testa ◽  
...  
Keyword(s):  
Control Strategy ◽  
Current Control ◽  
Multilevel Inverters ◽  
Optimal Current

scholarly journals A distributed trajectory control strategy for the connected automated vehicle in an isolated roundabout

2021 ◽  
Author(s):  
Ruiyi Wu ◽  
Hongfei Jia ◽  
Lili Yang ◽  
Hongzhi Miao ◽  
Yu Lin ◽  
...  
Keyword(s):  
Control Strategy ◽  
Trajectory Control ◽  
Automated Vehicle

Non-MTC gait cycles: An adaptive toe trajectory control strategy in older adults

2017 ◽  
Vol 53 ◽  
pp. 73-79 ◽  
Author(s):  
Braveena K. Santhiranayagam ◽  
W.A. Sparrow ◽  
Daniel T.H. Lai ◽  
Rezaul K. Begg
Keyword(s):  
Older Adults ◽  
Control Strategy ◽  
Trajectory Control

scholarly journals Effect of Saturation on Field Oriented Control of the New Designed Reluctance Synchronous Motor

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3223 ◽  
Author(s):  
Pavol Rafajdus ◽  
Valeria Hrabovcova ◽  
Pavel Lehocky ◽  
Pavol Makys ◽  
Filip Holub
Keyword(s):  
Induction Motor ◽  
Control Strategy ◽  
Closed Loop ◽  
Frequency Converter ◽  
Synchronous Motor ◽  
Field Oriented Control ◽  
Torque Measurement ◽  
Maximum Torque ◽  
Saturation Effects ◽  
Load Angle

In this paper the effect of saturation on torque production of a reluctance synchronous motor (RSM), which was originally built as an induction motor (IM), is investigated. The rotor was replaced with new one, designed as synchronous reluctance cageless rotor with barriers, the shape and number of which were optimized to maximize the reluctance ratio. The torque measurement was done while the RSM was fed by frequency converter controlled by a microcontroller with closed loop field oriented control strategy to find out how saturation effects the developed torque at various values of the currents and speeds. It is shown how the load angle at which the maximum torque was achieved is changed. It was found out that the load angle was shifted to higher values depending on the speed of operation.

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