Mochovce: Unique Full-Scope Simulator

In March 2009, Slovenske Elektrarne (SE) awarded GSE a contract to build a modern, high-fidelity, full-scope simulator for units 3 and 4 of the company’s Mochovce nuclear power plant. Currently under construction, the Mochovce plant is a VVER-440, model 213, with six coolant loops, each with horizontal steam generators.

As part of plant commissioning, SE needed a simulator that could verify and validate the plant’s operational and emergency procedures, verify and test the digital control system (DCS), and train the new operators on the main unit. By December 2013, GSE had built the MO34 simulator to serve these functions and delivered it successfully according to schedule with total customer satisfaction.

The MO34 proved to be a complex and unique simulator, mainly because it can be operated by the DCS or backup control panels (BUP). Since the plant is still under construction, certain challenges were posed, such as the ability to build the simulator parallel with the plant and the availability of the DCS
database. Despite these challenges, and with strong project management talent and effective processes, GSE was able to deliver the simulator it had promised.

The MO34 full-scope simulator was developed with GSE’s high-fidelity software tools and interface software based on its Java Application & Development Environment (JADE). These software tools provide SE with user-friendly, easy maintenance, accurate results, and proper response during all modes of operation.