Novel disturbance and observation based active islanding detection for three-phase grid-connected inverters

Sittichai Kaewthai; Chainarin Ekkaravarodome; Kamon Jirasereeamornkul

Novel disturbance and observation based active islanding detection for three-phase grid-connected inverters

Sittichai Kaewthai

Chainarin Ekkaravarodome

Kamon Jirasereeamornkul

Vol. 21, No. 2, pp. 438-450, Feb. 2021

10.1007/s43236-020-00195-4

Grid-connected inverters

Active power and reactive power control

Active islanding detection

Abstract

In this paper, a simplified active islanding detection method based on a power control disturbance signal for a three-phase grid-connected inverter application is presented. The disturbance and observation method is used to simplify the significant indicator, which determines the islanding condition. The control algorithm, which is used to command the observation and disturbance method, is derived from a three-phase grid-connected inverter. The power is easily transferred to the grid by converting it to direct current (DC) and commanding it on the rotating reference frame. The d-axis current command represents the active power, and the q-axis current command represents the reactive power. The power disturbance signal is performed by d-axis harmonic current injection. At the transforming point of common coupling (PCC), the DC component of the harmonic voltage signal can be easily observed by applying a Park transform. The IEEE Std. 1547 is applied to qualify the power-quality guarantee and anti-islanding test requirements. The validity of this approach was confirmed by simulation and experimental results.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

S. Kaewthai, C. Ekkaravarodome, K. Jirasereeamornkul, "Novel disturbance and observation based active islanding detection for three-phase grid-connected inverters," Journal of Power Electronics, vol. 21, no. 2, pp. 438-450, 2021. DOI: 10.1007/s43236-020-00195-4.

[ACM Style]

Sittichai Kaewthai, Chainarin Ekkaravarodome, and Kamon Jirasereeamornkul. 2021. Novel disturbance and observation based active islanding detection for three-phase grid-connected inverters. Journal of Power Electronics, 21, 2, (2021), 438-450. DOI: 10.1007/s43236-020-00195-4.