Abstract: An exemplary electricity producing installation includes electricity producing devices at least partly immersed in water, each electricity producing device having a rotary mechanical receiver and an alternator. The alternator includes at least one rotor and at least one stator. The at least one rotor of the alternator can be set into rotation by a rotary mechanical receiver. Each electricity producing device produces an electric AC signal with variable voltage and frequency conveyed by an at least partly immersed electric transport cable. The installation further includes an interconnection device having parallel electric transport cables connected to an input and which provide at the output a joint electric signal with variable frequency and voltage, the current amplitude of which is equal to the sum of the input currents. A partly immersed export cable connects the output of the interconnection device to a power conversion device out of the water.

Abstract: This method makes it possible to regulate the power of an energy conversion installation (100) for converting mechanical energy into electrical energy. The installation (100) comprises a machine (1), an alternator (2), a first converter (41), an electrical cable (3) which links the terminals of the alternator (2) to the first converter (41), a second converter (42), means of measurement (8, 41, 43), a control unit (5), the first converter (41) modulating the frequency and the current of the first electrical signal (S2).