A Power System Power Oscillation Accident Simulation and Reproduction System
A power oscillation and accident technology, applied in the direction of reducing/preventing power oscillation, electrical digital data processing, special data processing applications, etc., can solve the problem that the simulation results cannot reflect the real characteristics of the control system, the deviation between the simulation results and the actual power oscillation accidents, and the inability to Carry out simulation calculations and other issues
Active Publication Date: 2016-06-22
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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[0031] The off-line calculation software (including BPA, power system analysis comprehensive program PSASP, etc.) used in the prior art all use linearized excitation system and speed regulation system models, which are quite different from the actual device, and the simulation results cannot reflect the reality of the control system. There is a certain deviation between the simulation results and the actual power oscillation accident, and the simulation calculation can be performed for the power oscillation caused by weak damping, but the simulation calculation cannot be performed for the power oscillation caused by the forced oscillation of the control system
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[0053] like figure 2 As shown, the power oscillation accident simulation reproduction system of the present invention includes an RTDS platform, an actual speed control system device 10 , an actual excitation regulator device 12 and a power amplifier 13 .
[0054] In the RTDS platform, the simulation construction includes: speed control system model 1, excitation regulator model 7, prime mover 3, generator 4, system model 5, first switch 18 and second switch 19;
[0055] The speed control system model and the actual speed control system device are respectively connected to the two contacts of the first changeover switch 18, so that the speed control system model or the actual speed control system device can output the door opening μ2 through the first changeover switch 18, namely The actual opening of the regulating door of the generator speed control system is given to the prime mover, and the output Tm of the prime mover is the mechanical torque of the generator to the gene...
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A simulation reappearance system of an electric system power oscillation accident comprises a real time digital system (RTDS) platform, an actual generator speed regulating system, an actual excitation regulator a power amplifier, a RTDS platform simulation speed regulating system, an excitation system, a primer motor, a generator, a system model, a first selector switch and a second selector switch. A speed regulating system model or the actual generator speed regulating system is connected with the primer motor and the generator in sequence through the first selector switch and connected with the generator and a generator connection system model in sequence through the second selector switch. The RTDS platform outputs a stator voltage first value of the generator and a stator current first value of the generator to the power amplifier, and the power amplifier outputs a second value to the actual excitation regulator. The RTDS platform further outputs excitation current of the generator to the actual excitation regulator and outputs active power of the generator and rotation speed of a generator rotor to the actual generator speed regulating system. According to the simulation reappearance system of the electric system power oscillation accident, the simulation calculation result reflects the characteristics of an actual control system.
Description
technical field [0001] The invention relates to a power system power oscillation accident simulation reproduction system. Background technique [0002] The capacity and scale of my country's large interconnected power grids are increasing day by day, and the safety and stability of power systems, especially the dynamic stability problems, have become increasingly prominent. The power oscillation problem has always been one of the main reasons that plague the safe and stable operation of power grids. Therefore, how to take effective preventive measures and reproduce the dynamic stability of the power system after an accident has become an urgent problem to be solved by the operation, research and management departments of large power grids. At present, the off-line calculation software (including BPA, power system analysis comprehensive program PSASP, etc.) all adopt linearized excitation system and speed regulation system models, which are quite different from the actual dev...
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IPC IPC(8): H02J3/24G06F17/50
Inventor 张俊峰李鹏苏寅生
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID