Matrix transformation intermediate dc energy storage

What is a matrix converter?

The matrix converter (MC) is a key element of the system, since it performs a direct ac to ac conversion between the grid and the power transformer, dispensing the traditional dc-link capacitors. Therefore, the circuit volume and weight are reduced and a longer service life is expected when compared with the existing technical solutions.

Why is multiport-isolated DC-DC converter important?

Therefore, mitigating this effect is crucial for enhancing the converter performance. The implemented multiport-isolated DC-DC converter in HESS can be characterised as a multiple-input multiple-output (MIMO) system with inherent control challenges due to coupled control loops.

What is space vector modulated matrix converter?

Space vector modulated matrix converter with minimized number of switchings and a feedforward compensation of input voltage unbalance Proceedings of the IEEE International Conference on Power Electronics, Drives & Energy Systems for Industrial Growth, PEDES, 2 ( 1996), pp. 833 - 839

Can state-space generalised average modelling be applied to a DC-DC converter?

State-space generalised average modelling, typically used to estimate the dynamics of a DC-DC converter, is challenging to apply to an isolated converter because the external inductor currents are taken as a state variable whose integral value over one switching cycle is zero. Consequently, the dynamic attributes of external inductors are ignored.

Is a multiport-isolated DC-DC converter a multiple-input multiple-output (MIMO) system?

The implemented multiport-isolated DC-DC converter in HESS can be characterised as a multiple-input multiple-output (MIMO) system with inherent control challenges due to coupled control loops. To address these challenges, various decoupling control techniques have been developed, involving both hardware and software-based approaches.

How does a high-frequency multiwinding transformer affect system performance?

However, the high-frequency multiwinding transformer in this converter introduces cross-coupling effects, complicating control and resulting in large power deviations from nominal values due to step changes on other ports, which adversely impact system performance.