Water supply scheme, dynamic model and regulation method for multi-module high-temperature gas-cooled reactor nuclear power plant

The invention discloses a water supply scheme, a dynamic model and a regulation method for a multi-module high-temperature gas-cooled reactor nuclear power plant, belonging to the field of nuclear energy science and engineering. The invention is used to solve the problem that multiple sets of NSSS modules share the same set of water heating system, the dynamic characteristics of the modules are coupled through a two-loop complex fluid network and power conversion of any set of NSSS module will inevitably affect the transient characteristics of the other modules. The water supply scheme involves an NSSS module water-supply flow control system and a main steam pressure control system. Each set of nuclear steam supply system module is equipped with an independent water feed pump for water replenishment and a dynamic model of the water supply network for simulation regulation. By the invention, static decoupling between different NSSS modules is realized, regulation of the water supply flow is highly accurate and