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The Vietnamese Power system is expected to expand considerably in upcoming decades. However, pathways towards higher shares of renewables ought to be investigated. In this work, we investigate a highly renewable Vietnamese power system by jointly optimising the expansion of renewable generation facilities and the transmission grid. We show that in the cost-optimal case, highest amounts of wind capacities...
This paper presents a configuration and a control strategy for dynamic voltage restorer (DVR). In order to compensate the voltage of each phase separately, a closed-loop PI control law in the d-q reference frame is proposed. The proposed method provides a fast response and effective sag compensation capabilities. In addition, in order to detect voltage sag, a linear Kalman filter is employed to estimate...
Nowadays, many countries have successfully introduced competition in production and open access to transmission. The operation ensure the power system security as well as ensure the power market economy is always interested in research. So, the requirements to ensure the power system security and to ensure the power market economy is always interested in research. This paper studies the optimal placement...
After the 90s, the electric power industry has undergone a considerable change, and the power markets have been restructured in many regions worldwide. The bidding of power plants is always interesting in research to ensure revenue and profit of many generation companies. This paper studies and analyzes profit of generation company in power market by bidding strategy. PowerWorld 13 simulator are chosen...
Power systems become more interconnected for economic reasons. As transmission systems are required to operate at higher power levels, the margin of voltage stability reduces. For these reasons, utilities are increasingly employing compensating device. Voltage control in real-time power market ensures safety of the power system as well as improves efficiency of power market. This paper proposes an...
This paper proposes a new method to classify power quality disturbances using wavelet transform and K-nearest neighbor classifier. New features of power quality disturbances are extracted from discrete wavelet transform then using K-nearest neighbor classifier to classify these disturbances according to the features. Block diagram of the proposed method has been shown in this paper. Performance of...
In recent decades, the operation of the power system under the power market mechanism has been researched and applied by many countries. Voltage stability assessment in real-time power market (spot market) not only ensures safety of the power system but also improves efficiency of power market. The larger power system and the more plants join in the power market, the more research and analysis on...
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