Method and system for interconnecting two synchronous or asynchr

Details Method and system for interconnecting two synchronous or asynchr Method and system for interconnecting two synchronous or asynchr

1984-05-23

1986-11-04

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Plural converters

307 87, 323211, H02J 334, H02J 318

Patent

active

046211985

ABSTRACT:
A method and a system for interconnecting two electrical, alternating three phase networks operating asynchronously or synchronously at voltages of equal or adjacent frequencies, and in which, for corresponding phases, the voltages of the first and second networks are out of phase by a constant or varying angle. A plurality of three phase variable reactive impedances interconnect the two networks for carrying out a desired transfer of active power from one of the two networks to the other. The variable impedances are operated to establish between each phase of the first network and the three phases of the second network, three interconnections each having a different susceptance, which susceptances vary with the three phase variable reactive impedances. A regulator measures electrical parameters associated with at least one corresponding phase of the first and second networks, and operates the three phase variable reactive impedances to vary the susceptances of the interconnections in relation with the measured parameters so as to establish the desired transfer of active power from one of the first and second networks to the other network, while maintaining at a desired level a reactive power engaged in the transfer of active power.

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