The invention relates to the technical field of
nuclear fusion power generation, in particular to a
fusion power plant system based on multiple reactors, one
machine and a horizontal steam generator. The following technical scheme is provided mainly for solving the problems that a one-reactor one-
machine matching mode adopted by an existing
fusion power plant cannot adapt to a large-capacity and high-parameter
steam turbine set, the
system is complex and high in cost due to the fact that an additional
energy storage system is depended on, and economical and stable power generation is difficult to achieve. Comprising a double-
pile energy supply unit, a single-unit power generation unit, a loop driving unit and an alternate switching
control unit, and the double-
pile energy supply unit and the single-unit power generation unit form a switchable
energy supply and power generation loop through the alternate switching
control unit and the loop driving unit. Through the design of multi-reactor one-
machine matching and multi-reactor alternate operation, a high-capacity unit can be adapted without additional
energy storage, the problems that an existing scheme is low in efficiency, high in cost and complex in system are solved, and the economical efficiency and reliability of a
fusion power plant are remarkably improved.