Static Conversion Through an AC Link

Abstract

The diagram of such an energy conversion system between two electrical systems S₁ and S₂, suitable for the supply or absorption of electrical energy, is shown in its general form in Fig. 6.1. The converters CS₁ and CS₂ control the energy flow between the systems S₁ and S₂ on the one hand, and the intermediate AC stage S_i on the other hand. Depending on the nature of systems S₁ and S₂, which may be DC sources or single or polyphase AC sources, the static converters CS₁ and CS₂ can be DC/AC inverters or AC/AC converters.