Common-mode voltages of space-vector modulated matrix converters compared to three-level voltage source inverter

A Finite Control Set Model Predictive Control Method for Matrix Converter With Zero Common-Mode Voltage

“…Using a zero sequence impedance provides a high impedance to commonmode current and eliminates the CMV at the expense of system cost and size. Although the issues with CMV is well known, the problem of CMV for AC drives remains largely unresolved, and potential solutions must consider the specific application and operation conditions of converters [13].…”

“…where ∆𝑖 𝑜 , 𝑖 𝑜 𝑝 and 𝑖 𝑜 * are the current error, the predicted current and the current reference of the load. 𝑖 𝑜 𝑝 is calculated by means of (13). And 𝑖 𝑜 * is determined according to the control objective.…”

“…where ∆𝑖 𝑠 , 𝑖 𝑠 𝑝 and 𝑖 𝑠 * are the current error, the predicted current and the current reference of the source. 𝑖 𝑠 𝑝 is calculated by means of (13). The reference value of the source current 𝑖 𝑠 * can be given by:…”

An improved space vector modulation strategy for common-mode voltage reduction in matrix rectifier

“…The reduction of the CMV in systems fed by MC has been investigated in recent years. Several optimizations and modifications have been proposed in [5,[7][8][9][10][11][12]. Literature [7] introduced an indirect space vector modulation strategy, which reduced the CMV peak value in MC by 66%, through reassigning the zero switching states.…”

“…A method based on the predictive current control has been proposed in [9]. In order to suppress the magnitude of the CMV in the indirect matrix converter (IMC), the authors of [10] presented a modified double space vector modulation method by selecting the appropriate zero vectors that generate the minimum CMV. Paper [11] went a step further, realized zero-current commutation in the rectify stage of the IMC, meanwhile reduced the CMV to 42%.…”