A functional simulation device for dynamic simulation experiments

Abstract

The invention provides a function simulation device for dynamic simulation experiments. The device comprises an MOV function simulation module, a protection gap GAP function simulation module and a rapid bypass electronic switch function simulation module, wherein the MOV function simulation module, the protection gap GAP function simulation module and the rapid bypass electronic switch function simulation module are sequentially connected in parallel. The device integrates with three types of function modules and is suitable for the dynamic simulation experiments of series compensation devices and fault current limiters.

Description

Technical field: [0001] The invention relates to a function simulation device, in particular to a device for simulating MOV, protection gap and fast bypass switch in a dynamic simulation experiment system. Background technique: [0002] Power system dynamic simulation test is an important means to study and analyze power system. The physical dynamic simulation experiment analyzes the dynamic characteristics of the simulated system through the actual physical model. Physical models usually include generators, transmission lines, transformers, circuit breakers and electrical loads, etc. These models must be able to truly reflect the characteristics of the original power system components. To ensure this, the physical model usually uses physical entities that are consistent or similar to the prototype, for example, a motor generator is used to simulate a generator, a π-type combination of inductance and capacitance is used to simulate a transmission line, and so on. [0003] ...

AI Technical Summary

Problems solved by technology

[0006] 1. Low-voltage ZnO resistor product parameters are highly dispersed, and the dynamic resistance in the protection zone is large, which is far from the dynamic resistance of large-capacity MOVs actually used in power systems.

[0007] 2. The absorption capacity of low-voltage ZnO resistors is usually very small, and the cost of customizing large-capacity ZnO resistors is very high, and ZnO resistors are easily damaged during the test and need to be replaced continuously

[0013] In the actual circuit, the fast electronic switch of the fault current limiter controls the high-power thyristor through the control protection system valve electronic cabinet and the TE board interface. This method can also be implemented in the dynamic simulation model, but this method is implemented in the dynamic simulation model It seems that the wiring is complicated, and it is wasteful to use the actual high-power thyristor in the model

Images