Matrix Converter-Based Active Distribution Transformer

Direct control method for a PV system integrated in an Indirect Matrix Converter-based UPQC

“…Also, the PV array current reference can be generated so as to perform Maximum Power Point Tracking (MPPT). The control circuit is shown in Figure 4 where a direct sliding mode control method is used for both converters [10], [12] and generates the switching matrices S 1 and S 2 to apply to the shunt and series converters, respectively.…”

“…The series converter is connected to the grid through a series transformer for compensating the voltage-related PQ issues, such as voltage sags, swells and harmonics [2], [10], in order to provide the sensitive load with adequate voltages v nl,abc at the PCC. The compensation of the grid voltages v abc by the series voltages v ABC can be expressed by…”

Three-Phase Flexible Transformer Based on Bipolar Direct AC/AC Chopper and its Control Strategy

“…In [14], a smart distribution transformer based on bidirectional power electronic switches is proposed, and it has a step-wise characteristics and narrow control range. A hybrid transformer based on matrix converter is presented in [15][16][17], and its structure of the proposed solutions needs a more advanced control system, which increases complexity and costs and decreases reliability. Moreover, because of the untypical transformer voltage ratio, the hybrid transformer cannot operate after system fault occurs [15], and the voltage control range is limited to ±20% [16].…”

“…A hybrid transformer based on matrix converter is presented in [15][16][17], and its structure of the proposed solutions needs a more advanced control system, which increases complexity and costs and decreases reliability. Moreover, because of the untypical transformer voltage ratio, the hybrid transformer cannot operate after system fault occurs [15], and the voltage control range is limited to ±20% [16]. Additionally, in [18], the voltage regulation range can be increased to ±50%, however as, the proposed solution cannot operate after a fault in the power electronic unit, either.…”

Modulated Predictive Control for Indirect Matrix Converter

“…Matrix converters can minimize the size of the required passives components, thus increasing the potential power density and reliability of the converter [1], [2]. For such reasons Matrix converters are often proposed in high power density applications, such as drive [3], [4], aircraft ground power supply units [5], inductive power transfer [6]- [8] and hybrid transformers [9], [10], as a compact alternative to standard back-to-back AC/AC topologies. Among all the possible topologies in the matrix converter family, the Indirect Matrix Converter (IMC) represents an interesting solution for direct AC-AC power conversion in many applications.…”