Applications of Real-Time Simulation Technologies in the Power System of Mongolia
Abstract:
The stability control of Mongolia's power system is currently in critical condition due to insufficient power gen eration. Therefore, it needs to be accurately estimated and simulated. Real-time digital simulators are used to perform calculations that require high accuracy and precision, such as transient analysis and steady-state calcu lations of power systems, to solve this problem. A real time digital simulator (RTDS) differs from other simulators in that its simulation time-step is synchronized with real-time and is simulated using instantaneous values rather than RMS values, which is the basis for making the test process closer to the real environment. RTDS testing methods are classified into two main parts: fully digital simulation and hardware-in-the-loop testing. Fully digital simulation involves modeling the entire power system from generation to distribution in a digital environment. In contrast, hardware-in-the-loop testing involves replacing specific parts of the power system model with real physical hardware, such as protection devices and power electronic devices. The real-time digital simulator im plementation commenced in Mongolia in 2023. One of its notable accomplishments lies in the accurate estimation of the parallel connection of battery storage to the power system.
