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This paper presents the design of the voltage source converter (VSC) excitation system and an integrated prototype using digital signal processor (DSP) as the core of the excitation controller is developed. Compared with the static excitation systems with thyristor, the VSC excitation system owns one more channel offering positive damping to power system by controlling reactive power of VSC on its...
This paper presents the design of the voltage source converter(VSC) excitation system and an integrated prototype using digital signal processor(DSP) as the core of the excitation controller is developed. Compared with the static excitation systems with thyristor, the VSC excitation system owns one more channel offering positive damping to power system by controlling reactive power of VSC on its ac...
Due to the condition that optimization testing work of power system stabilizer(PSS) parameters is highly man-relied, an intelligent optimization method of PSS parameters based on grid equivalence is proposed. The method improves working efficiency effectively, and guarantees that the optimized PSS parameters approach the global optimum. Using small disturbance data, system excluding the generator...
The increasing wind power penetration poses significant technical problems for the electric power systems. The intermittent and fluctuant output power of wind generators has a great impact on the power quality and power system stability. On the other hand, the grid-side faults influence the transient processes of wind generators. In this paper, an integrated control strategy is proposed based on the...
Electronic power transformer is a new power electronic-based power transformer with FACTS and DFACTS functions. It can be used in transmission systems, distribution systems and alternative energy generation systems. In this paper, its application scenarios were summarized and then the operation and control modes were analyzed. Numerical simulations were carried out to demonstrate the analysis.
Taking Matlab/Simulink as a platform, a single-machine infinite-bus system simulation model of AC excited generator (ACEG) is established. The stator flux oriented vector control strategy and direct power control strategy of ACEG are proposed in this paper. With this model of ACEG, the steady state regulation characteristics of active power and reactive power and the transient processes of a sudden...
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