Publication date : Jan 2014
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Transmission and distribution systems are becoming increasingly complex due to the integration of renewable energy and high-performance control and special protection systems. Sophisticated tools are required to evaluate the performance and reliability of several fast local protection and control systems that interact with slower wide-area control and protection systems that increase performance and security, prior to deployment. In particular, these tools must allow the testing of actual protection and control systems hardware units by connecting them to high-fidelity simulations of power systems that integrate several validated protection and control systems.
OPAL-RT will demonstrate how fast electromagnetic simulation tools, with reaction times smaller than one microsecond, can be integrated with transient dynamic simulation tools, using Phasor-mode simulation with time steps as large as 10 milliseconds, to analyze the complex dynamics of very large transmission and unbalanced distribution systems. The same hardware-in-the loop simulation technology can also be used to design and test new control and protection algorithms, as well to identify models of black box systems, to evaluate the global performance of modern power systems.