[PDF] Top 20 An optimal full frequency control strategy for the modular multilevel matrix converter based on predictive control

... To stabilize the M3C operation at equal-frequency point, [23] proposed a method by injecting circulating currents and applying reactive power at the input-side (supply-side). The main problem of this method is ... See full document

... power control to support the grid frequency, reactive power control to support the grid voltage, power quality, power controllability, and Fault Ride Through (FRT) ...power converter ... See full document

... The grid tie inverter (GTI) must synchronize its frequency with that of the grid (e.g. 50 or 60 Hz) using a local oscillator and limit the voltage to no higher than the grid voltage. HVDC is a technology which ... See full document

... clusters based on the series connection of three full-H-bridge cells and one ...the converter has 27 power cells, each of them connected to a floating capacitor of ... See full document

... model predictive control strategy was proposed, which is suitable for back-to-back converters and multi-level ...power converter at the time instant ...the optimal switching state, the ... See full document

... three optimal active and zero vectors are chosen which are applied to the ...the control of the load current or the instantaneous reactive input power and second, as the full converter ... See full document

... which is similar to the mitigation control of the MMC at low-speed range [7]. However, the reference common voltage is difficult to design and may cause over-modulation. The common voltage may also lead to ... See full document

... of Full H-Bridge based cells and one inductor ...switching frequency of a branch voltage depend on the modulation technique and the number of cells, leading to low low harmonic distortion and small ... See full document

... proposed control strategy allows proper operation of the converter keeping regulation of the capacitor voltages, input currents and voltages and output currents and ...The control of the M3C ... See full document

... of predictive control in a direct matrix converter is the high com- putational cost and the adequate selection of weighting factors in order to control both input and output ...model ... See full document

... representing respectively the sending and receiving ends of a 3-phase network linked by a transmission line. The VSC2 is a three-phase 2-level voltage source inverter. Its 3 phases’ AC sides are connected to a ... See full document

... [6] multilevel inverter. Among these MLI topologies CHB multilevel inverter (CHBMLI) becomes more popular, because of its superior trustworthiness arising from its modularity and lesser number of hardware ... See full document

... the control of power converters, solving the optimization problem of MPC online is not ...the control of power converters and drives, like for current control and power control for three phase ... See full document

... The STATCOM, as an established FACTs device for providing reactive power compensation and voltage regulation for power networks, is in increasing demand for distribution systems. Major changes are posing challenges to ... See full document

... direct matrix converter (DMC) has a large number of available switching states, wherewith, the implementa- tion of predictive control techniques requires high computational ...the ... See full document

... model based control techniques, where the system model inaccuracies result in a steady-state error on the controlled ...sampling frequency (10kHz), it can be noted a discrepancy between simulation ... See full document

... At time t = 7 s, the system is subjected to the removal of MMC3 (Group 1) from service, i.e., (i) the AC-side circuit breakers open and subsequently (ii) the DC-side is disconnected when the converter DC current ... See full document

... new modular multilevel converter (MMC) ...conventional multilevel con- verters, MMC has much lower switching frequency (50 Hz) resulting in lower switching losses, and consequently, ... See full document

... source converter (VSC) topologies being proposed aim to improve dc fault survival of point-to-point and multi-terminal HVDC transmission ...Half-bridge modular multilevel converter (HB-MMC) is ... See full document

... inner control schemes are the same, only three- phase phase voltages and currents at the PCC, MMC ac current at the low-voltage side of the interfacing transformer, and average active power are given in ...the ... See full document