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In order to control the D-FACTS effectively and maintain high efficiency of the novel D-FACTS, high precision of the compensation voltage of each DSC is required. High precision DSC control can be achieved with Proportion-Resonance controller in stationary frame or Proportion-Integration controller in DQ frame. These two controllers are designed and implemented in both MATLAB/SIMULINK and experiment...
The Static Synchronous Compensator (STATCOM) is a shunt device using power electronics to control power flow and improve transient stability on power grids. A model of a 100Mvar GTO-based STATCOM on a 500kV transmission system is built and its dynamic response is simulated. The GTO-based STATCOM consists of a 48-pulse three-level inverter and its control system. The simulating result shows that the...
The static synchronous compensator(STATCOM) using power electronics as a shunt device of the Flexible AC Transmission Systems (FACTS) is attracting an increasing interest in power system research and in electric utilities. This paper proposes a novel multi-level structure topology with zigzag transformer for three-level inverter used in STATCOM. Moreover, selective harmonic elimination pulsewidth...
The necessity to take into account environment problems and in parallel a need for more energy, for the development of emerging economies, makes the management of energy sources a very important problem. The electric transmission network is charged with more loads and consumers. The power control is performed today using power electronics installations, in particular the flexible alternating current...
The harmonic domain is the most rigorous method to simulate the steady-state behaviour of power electronic devices and their interaction with the a.c. system and with each other. At the time of development the complexity of the algorithm and the limited presence of power electronics in the power grids detracted from its adoption by the industry. However with the increasing presence of renewable energy,...
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