Semi-Physical Simulation Test Bench and Test Method for Multi-Machine Parallel Operation Device of Gas Turbines

A semi-physical simulation test method for a multi-machine parallel operation device of gas turbines, wherein the working modes of the gas turbines comprise electric propelling modes, and the electric propelling modes comprise a storage battery power supply propelling mode and a laboratory power supply propelling mode;

• firstly, in the storage battery power supply propelling mode, the storage battery drives the simulation gas turbines to be in a running state, the three simulation gas turbines such as the first simulation gas turbine, the second simulation gas turbine and the third simulation gas turbine are all in a running state, the first SSS clutch and the third SSS clutch are both closed, and the first simulation gas turbine is connected with the first parallel operation gearbox through the second torque meter and then drives the electric turbine dynamometer through the first torque meter;
• the second simulation gas turbine is connected with the second parallel operation gearbox through the fifth torque meter and then drives the hydraulic dynamometer through the third torque meter;
• and the third gas turbine is connected with the first parallel operation gearbox through the fourth torque meter, at the moment, power is separated into two paths, the third simulation gas turbine drives the electric turbine dynamometer through the first torque meter in the first path of power and reaches the bridging gearbox through the second electromagnetic clutch, the first support and the sixth torque meter in the second path of power, then is connected with the second parallel operation gearbox through the seventh torque meter, the second support and the third electromagnetic clutch, and then drives the hydraulic dynamometer through the third torque meter;
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• secondly, in the laboratory power supply propelling mode, a laboratory power supply drives the motors to be in a running state, the three simulation gas turbines such as the first simulation gas turbine, the second simulation gas turbine and the third simulation gas turbine are all in a running state, the first SSS clutch and the third SSS clutch are both closed, and the first simulation gas turbine is connected with the first parallel operation gearbox through the second torque meter and then drives the electric turbine dynamometer through the first torque meter;
• the second simulation gas turbine is connected with the second parallel operation gearbox through the fifth torque meter and then drives the hydraulic dynamometer through the third torque meter;
• and the third gas turbine is connected with the first parallel operation gearbox through the fourth torque meter, at the moment, power is separated into two paths, the third simulation gas turbine drives the electric turbine dynamometer through the first torque meter in the first path of power and reaches the bridging gearbox through the second electromagnetic clutch, the first support and the sixth torque meter in the second path of power, then is connected with the second parallel operation gearbox through the seventh torque meter, the second support and the third electromagnetic clutch, and then drives the hydraulic dynamometer through the third torque meter.

A semi-physical simulation test bench for a multi-machine parallel operation device of gas turbines, comprising:

• a test system, the test system comprising a first simulation gas turbine, a storage battery, an electric turbine dynamometer, a first SSS clutch, a second SSS clutch, a third SSS clutch, a hydraulic dynamometer and a generator, a first torque meter, a second torque meter, a third torque meter, a fourth torque meter, a fifth torque meter, a sixth torque meter, a seventh torque meter, a first electromagnetic clutch, a second electromagnetic clutch, a third electromagnetic clutch, a first support, a second support, a second simulation gas turbine, a third simulation gas turbine, couplers, a first parallel operation gearbox, a second parallel operation gearbox and a bridging gearbox, wherein the first simulation gas turbine is connected with the first parallel operation gearbox through the first SSS clutch, the second torque meter and the second coupler, and the first parallel operation gearbox is connected with the electric turbine dynamometer through the first coupler and the first torque meter in sequence;
• the second simulation gas turbine is connected with the second parallel operation gearbox through the third SSS clutch, the fifth torque meter and the eighth coupler in sequence, and the second parallel operation gearbox is connected with the hydraulic dynamometer through the third coupler and the third torque meter in sequence;
• and the third simulation gas turbine is connected with the first parallel operation gearbox 13 through the second SSS clutch, the fourth torque meter and the fifth coupler in sequence, at the moment, power is separated into two paths, the first parallel operation gearbox 13 drives the electric turbine dynamometer through the first coupler and the first torque meter in the first path of power and reaches the bridging gearbox through the sixth coupler, the second electromagnetic clutch, the first support, the sixth torque meter and the other eighth coupler in the second path of power, the bridging gearbox is connected with the second parallel operation gearbox through the ninth coupler, the seventh torque meter, the second support, the third electromagnetic clutch and the seventh coupler, and the second parallel operation gearbox 14 drives the hydraulic dynamometer through the third coupler and the third torque meter;
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• a monitoring control system, the monitoring control system comprising a data processing simulation machine, an execution mechanism control system, an upper computer and a security and protection detector, wherein the data processing simulation machine can perform real-time solution calculation from a controller model to a prime mover model, and performs data acquisition and data output;
• the execution mechanism control system comprises a first motor, a second motor, a third motor, a first motor frequency converter, a second motor frequency converter, a third motor frequency converter, a generator controller, an electric turbine dynamometer controller and a hydraulic dynamometer controller, the execution mechanism control system can transmit a rotating speed torque signal to the data processing simulation machine and the upper computer;
• and the upper computer can analyze and monitor data of the data processing simulation machine and the execution mechanism control system.