International Conference Gwang-Seob Kim and Kyo-Beum Lee, "Fault Diagnosis and Fault-Tolerant Control of a DC-Link Voltage Sensor for PV Inverters," in Proc. IPEMC (ECCE-Asia) Conf., Jun. 2012, pp. 1408–1412.
2012
본문
This paper proposes a method for fault diagnosis and fault-tolerant control of a dc-link voltage sensor for two-stage three-phase
grid-connected PV inverters. In this system, a sensor is essential for power conversion. A sensor fault is detected when there is an
error between the sensed and estimated values, which are obtained from a dc-link voltage sensorless algorithm. Fault-tolerant control
is achieved by using the estimated values. A deadbeat current controller is used to meet the dynamic characteristic of the proposed
algorithm. The proposed algorithm is validated by simulation and experimental results.
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