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Generator dynamic simulation physical was set up with SIMPACK multi-body dynamics software. Non-linear feature of bearing and the influence of elastic support on generator were researched. Results showed that the alteration of bearing stiffness would significantly change the natural frequency of the generator rotor, and may cause resonance with power grid. The variation of the elastic support stiffness...
A Hardware Test-Bed (HTB) is developed to serve as a platform for power grid emulation. For maximum flexibility, power converters, which can accommodate various control algorithms and behave distinctively based on the applied model and control, is adopted. With the developed emulators, such as generator, load, wind turbine, and PV emulators, diverse research and experiments can be performed by using...
A real-time reconfigurable hardware test-bed is being constructed to emulate a transmission network of a power system by modular regenerative converters. This test-bed enables flexible research scenarios without the necessities of using the actual power system equipment. This paper presents the emulation of a full-converter wind turbine using a single converter in order to investigate the impact of...
In this project to develop a reconfigurable electrical grid emulator, a Hardware Test-Bed (HTB) is being developed that emulates large scale power system generators and loads by using power electronic converters. Source converters in the HTB system are designed to emulate power generators. A synchronous generator model is implemented in the converter to calculate the voltage references in the dq axis,...
An ultra-wide-area transmission network emulator represented by regenerative converters is developed in this paper. The converters are paralleled to provide and share power similar to electromechanical generators. Others are controlled to emulate loads, such as, induction motors and constant impedance, current, power (ZIP) loads. The structure and control algorithms of these power system component...
In this paper the dynamic model for Limit Induced Bifurcation in wind power systems is constructed and used to locate these bifurcation points of wind farms in WSCC-9Bus system. For the sake of system stability, the Limit Induced Bifurcation is investigated under different wind speed conditions. Moreover, the initial condition of an optimal model is calculated through the method of Quasi Steady-State...
In order to simulate the effects of lightning and switching transients on power lines, coupling and decoupling network (CDN) is necessary for performing surge tests on electrical and electronic equipment. This paper presents a particular analysis of the circuit of CDN and design details according to the requirement of the standard IEC 61000-4-5. The CDN circuits are simulated by electromagnetic transients...
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