Testing system for ring-digital and physical mixed real-time power simulation and test method thereof

Abstract

The invention discloses a testing system for ring-digital and physical mixed real-time power simulation. A digital simulation work station is connected with an RTDS digital simulator through the Ethernet, the RTDS digital simulator is connected with an analog output interface card through fibers, and the analog output interface card is connected with a controller through hard wiring. The controller is connected with a four-quadrant linear power amplifier through hard wiring, and the four-quadrant linear power amplifier is connected with a power type physical model through a cable conductor to output voltage analog of the RTDS digital simulator to the power type physical model. The power type physical model is connected with a current measurement sensor, the current measurement sensor is connected with the analog input interface card through hard wiring, and the analog input interface card is connected with the RTDS digital simulator through fibers to return the current of the power type physical model to the RTDS digital simulator.

Description

technical field [0001] The invention relates to power system simulation test technology, more specifically, relates to a real-time simulation test system and a test method of a power in-loop digital and physical hybrid. Background technique [0002] For unknown physical phenomena (such as large-scale wind farms, solar power plants, the impact of extreme external conditions on power systems, etc.), as well as extremely fast dynamic processes (such as IGBT closing and opening processes) and extremely slow dynamic processes (such as power grid blackout process), conventional digital simulation, such as RTDS, RT-LAB, EMTDC, BPA and other simulation calculation software are difficult to simulate, and need to rely on dynamic physical simulation methods, and the scale of physical simulation is limited, it is difficult to meet the needs of large-scale power grid simulation today, and The input of manpower and material resources is relatively large, and the economic benefit is low. ...

AI Technical Summary

Problems solved by technology

[0002] For unknown physical phenomena (such as large-scale wind farms, solar power plants, the impact of extreme external conditions on power systems, etc.), as well as extremely fast dynamic processes (such as IGBT closing and opening processes) and extremely slow dynamic processes (such as power grid blackout process), conventional digital simulation, such as RTDS, RT-LAB, EMTDC, BPA and other simulation calculation software are difficult to simulate, and need to rely on dynamic physical simulation methods, and the scale of physical simulation is limited, it is difficult to meet the needs of large-scale power grid simulation today, and Large investment in manpower and material resources, low economic benefits

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