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Fault section diagnosis (FSD) of power systems plays an important role in power system operation. In order to quickly and accurately diagnose the fault section or sections after the occurrence of an event, a novel variant of brain storm optimization (BSO) in objective space algorithm, referred to as BCBSO (binary coded BSO), is proposed in this paper. The FSD problem is transformed into a 0–1 integer...
Dynamic aggregation of coherent generators is the main step in constructing dynamic equivalent model of power systems. In this paper two typical algorithms of coherent generators dynamic aggregation are reviewed briefly, the first model is traditional frequency domain algorithm, namely the generator terminal bus aggregation algorithm which uses the iterative process in frequency domain to derive the...
This paper presents the development and application of an active disturbance rejection controller (ADRC) to regulate the frequency error for a three-area interconnected power system. As the interconnected power system transmits the power from one area to another, the system frequency will inevitably deviate from a scheduled frequency, resulting in a frequency error. A control system is essential to...
A modified pattern recognition algorithm based on the residual analysis and the recursive partition is proposed in this paper, which is more effective than the original algorithm in cases of high-dimension finite-sample practical engineering problems. The proposed approach is first verified with artificial testing data and then applied to power system transient stability assessment (TSA). Case studies...
Applying SGA to practical large scale power networks reactive power optimization still existing problems like large searching space and time consuming. This paper advanced an improved genetic algorithm combining sensitivity analysis (IGACSA). The new algorithm combined sensitivity analysis to generate initial generation of individuals in stead the way of SGA. The crossover and mutation operation of...
HVDC Light has so much outstanding performance that it has been highly appreciated by power industry all over the world.After brief introduction and analysis to the principle and technique characteristics, the control modes and control system of HVDC Light, a discussion about applying HVDC Light to CSG is presented in this paper. Two models in EMTDC are proposed which illustrate the potential application...
Middle and long term load forecasting of power system is affected by various uncertain factors. Using clustering method numerous relative factors can be synthesized for the forecasting model so that the accuracy of the load forecasting would be improved significantly. A clustering neural network consisting of logic operators is quoted in this paper, which can be used in mid-long term load forecasting...
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