Online observation and compensation of voltage distortion in PWM VSI for PMSM

Hw, Kim; Hs, Kim; Youn, Myung-Joong; Cho, KY

doi:10.1049/ip-epa:20040510

Cited by 22 publications

(12 citation statements)

References 13 publications

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“…In addition, since the output voltages of inverter are generated by the pulse width modulation (PWM) method, it is difficult to have low cost because voltage sensors and isolation circuits which detect the small amount of voltage drops in the switches, large reverse voltages, and turn on/off delay time are required to have high resolution [5]. Jingwei Zhu et al [1] suggested the use of gate drive circuit for the open-switch fault detection.…”

Section: Conventional Switch Open Fault Detectionmentioning

confidence: 99%

“…On-line observing and compensation method for the voltage distortion due to the blanking time and inherent characteristics of the switching devices such as voltage drops, turn on/off time and output voltage transition time has been proposed in [5]. In this paper, the proposed open-switch fault detection algorithm is fault diagnosis by employing the observing method for the voltage distortion in [5] as detecting the voltage errors in switches.…”

Section: Voltage Distortion In the Normal Switchesmentioning

confidence: 99%

“…In this paper, the proposed open-switch fault detection algorithm is fault diagnosis by employing the observing method for the voltage distortion in [5] as detecting the voltage errors in switches. For the algorithm of openswitch fault detection, the voltage distortion in the inverter switches is analyzed in this chapter.…”

Section: Voltage Distortion In the Normal Switchesmentioning

confidence: 99%

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Simple switch open fault detection method of voltage source inverter

Jung

Park

Kim

et al. 2009

2009 IEEE Energy Conversion Congress and Exposition

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Recently, permanent magnet synchronous motors are applied to various applications such as electric vehicle, aerospace, medical service, and military applications due to several outstanding characteristics. Because of the importance of high reliable operation in these areas, many researches which are related to the fault detection and diagnosis of inverter systems are conducted. In this paper, a new simple fault detection method of voltage source inverter for permanent magnet synchronous motor is proposed. The feasibility of the proposed method is proved by simulation and experiment. By the simulation and experiments, rapid detection characteristic of the proposed method has been proved without any additional voltage sensor. Index Terms-fault detection, FDD, voltage source inverter, switch open fault 3175 978-1-4244-2893-9/09/$25.00 ©2009 IEEE

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Section: Conventional Switch Open Fault Detectionmentioning

confidence: 99%

Section: Voltage Distortion In the Normal Switchesmentioning

confidence: 99%

Section: Voltage Distortion In the Normal Switchesmentioning

confidence: 99%

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Simple switch open fault detection method of voltage source inverter

Jung

Park

Kim

et al. 2009

2009 IEEE Energy Conversion Congress and Exposition

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“…This distortion is deadtime effects which caused by the dead-time setting and nonideal switching characteristics of power devices [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…Actually, the running condition of the motor affects the compensating voltages. Kim present an online disturbance observer in [2], [3], in this method, the compensating voltages are calculated using the dead time, switching period, current command and dc link voltage. However, it ignores the parameter variations of the motor.…”

Section: Introductionmentioning

confidence: 99%

An implementation of neural network and multi-fuzzy controller for permanent magnet synchronous motor direct torque controlled drive

Cao¹,

Fan²,

Huang³

2008

2008 IEEE International Conference on Automation and Logistics

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To compensate voltage difference between the reference and the actual output voltages caused by dead-time effects, a novel compensation method for permanent magnet synchronous motor (PMSM) direct torque controlled (DTC) drive based on neuro-fuzzy observer is proposed. This method presents the implementation of a voltage distortion observer based on the artificial neural network (ANN). Using the output of the fuzzy controller (FC1), online training is carried out to update the weights and biases of the ANN. To reduce torque and flux linkage ripples, another fuzzy controller (FC2) is adopted to replace the conventional hystersis controller. The proposed control scheme combines the capability of fuzzy reasoning in handling uncertain information and the capability of neural network in learning from processes. Results of simulations and experiments are provided to demonstrate the effectiveness of the proposed method even under the occurrence of different reference speed and load torque. Index Terms -PMSM, DTC, ANN, FC.

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