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Application of battery energy storage systems (BESS) could help reducing wind power curtailment. Due to the uncertain nature of wind power as well as conventional generation and loads, it is more reasonable and accurate to determine the quantitative requirement for BESS probabilistically. Moreover, the effectiveness of using BESS to reduce wind power curtailment is affected by their charging and discharging...
By studying on the coordination between the system reliability level and the EV grid-integration scale, the system acceptance capacity of EVs can be assessed from a new point of view. In this paper, a model for the charging loads of three types of EVs and a coordinated strategy with time-of-use price (TOU) are established. Then, the maximum acceptable capacity, reliability sensitivity and other indicators...
Ultra high voltage (UHV) AC system operates at 1000kV or above and is characterised with having a large transmission capacity (5000MW or above per single circuit) and long transmission distances. It is capable of producing over 4 times more reactive power gains than a conventional 500kV transmission line, and also absorbing a significant amount of reactive power when power flow across the line is...
This paper considers a novel control strategy for energy storage systems in networks with high penetration of renewable power and limited network capacity based on the combination of model predictive control (MPC) and hierarchical optimization. The objective is to maximize the output, hence the income, from the renewable generation using appropriate charging and discharging control strategy for energy...
When wavelet variation operation is increased on the basis of standard particle swarm optimization algorithm (SPSO), an innovative hybrid particle swarm optimization algorithm (HPSO) is formed. Based on the HPSO, aiming to the UHV power system containing 1000 kV and 500 kV, we can carry out the coordination optimization of emergency control for transient stability problem, here, the transient stability...
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