The PAES control system interacts with the following equipment:
- engine;
- generator;
- fans and heaters of the engine and gearbox oil tanks;
- generator excitation control cabinet with the regulator;
- complete switchgear;
- precise synchronization system;
- engine and generator vibration control equipment;
- gassiness control equipment;
- fire alarm and fire extinguishing equipment;
- pipeline valves: fuel gas supply valve, starting gas supply valve, shut-off valve for microclimate maintenance equipment of the operator compartment in the van;
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top-level automatic process control system with time synchronization device.
It consists of:
- logic processing unit;
- low-voltage switching device;
- automated operator's workplace.
PAES provides automation of technological processes control in the following modes:
- cold standby;
- hot standby;
- cold cranking;
- routine operations;
- normal shutdown;
- emergency stop;
- remote control;
- start-up for parallel operation with the network with automatic control;
- start-up for parallel operation with a network with automated control;
- start-up for autonomous operation with the network with automatic control;
- start-up for autonomous operation with the network with automated control.
PAES provides the following control and display functions:
- continuous control of technological parameters, including measurement and presentation of values of selected parameters on the PC screen at the operator's call;
- call of controlled parameters at the operator's request to the PC screen in tabular form or in the form of trends with display of warning and emergency settings lines on the screen;
- automatic control of general station parameters, i.e. methane concentration and temperature in rooms, temperature, humidity, outdoor air pressure;
- automatic control of GTPP equipment condition;
- solving calculation tasks;
- accounting of generated electric power;
- accounting of the number of starts;
- presentation of mnemonic diagrams of the unit on the screen with indication of values of measured parameters and positions of actuators and main parameters of the GTPP operation;
- automatic detection, display and audible signaling of deviations of technological parameters from the settings;
- presentation of information on unfulfilled pre-start conditions;signaling of the main unit modes;
memorization and documentation of signals that caused an emergency stop, as well as values of the main technological parameters of the unit.
Technical characteristics
Number of measuring channels – 72;
Number of channels to receive the discrete signals - 256;
Number of channels (discrete commands) - 160.
Number and types of communication channels:
- fiber-optic communication line RS-485 with the operator's workstation - 2;
- fiber-optic communication line with upper-level control system via Ethernet 10/100 - 2.
Duration of inquiry cycle
- for engine – not more than 0,02 s
- for the rest of the system – not more than 0,1 s
Power supply:
- from two independent inputs with voltage 380V and frequency (50±1)Hz;
- from on-board DC network with voltage 24V.
SAU PAES differs from similar systems by a high level of complex automation of control and monitoring of the power plant, increased reliability and survivability due to hardware redundancy, as well as the openness of software (EIScada designed by our company) for the user and the possibility of its rapid adaptation to changing conditions.
