Using the Coordinated Control Method in the Problem of Synchronization of Synchronous Generators of Power Plants

摘要

─ The paper is devoted to the issue of synchronization of steam turbo generators during parallel operation. To date, synchronization is performed individually for each generator. The paper deals with synchronization by correcting the rotation speed of not one turbo generator, but a group of power plant turbo generators. This is achieved by combining a group of turbo generators into one coordinated control system. The coordinated control method is used to develop this system. The aim of coordinated control is to support the rotation angles of the generator rotors equal to each other. The controlled signal is the average value of the rotation angles of the generator rotors of the group. This approach provides highspeed synchronization of the generator group. The mathematical model of the generator is performed in relative deviations of variables. This ensures the rated mode of generator operation. The model experiment showed that group synchronization does not lead to exceeding the limit values of the supply voltage frequency. The turbine valve is moved by a positional inertia-free drive.