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This paper presents a new application of electrical energy storage (EES) systems and demand side response (DSR) operating collaboratively to enable voltage control within distribution networks. This work has been carried out as part of the Customer Led Network Revolution (CLNR) project which is funded by Ofgem's Low Carbon Networks Fund. Modelling and simulation work is presented, which demonstrates...
Wind power has emerged as a promising and feasible resource to provide clean energy. The intermittent and uncontrollable characteristics of wind power yet create many stability and reliability issues in power system planning and operation. Battery energy storage systems (BESSs) have been broadly used to solve the problems. Reliability cost and worth aspect of an ESS is not considered in most studies...
Power system restructuring with high renewable energy penetration has created some new problems for reliability evaluation. One of the problems is the large computation time due to the increased number of renewable generators. In this regard, the reliability network equivalent techniques have been introduced to simplify calculation. These techniques are simpler than the conventional contingency enumeration...
The AnnAGNPS model (Annualized Non-Point Source Pollution Model) is applied to analyze the spatial and temporal heterogeneity of agricultural non-point source pollutant loading in Zhangxi Watershed. The spatial database and attribute database of non-point source pollution is then established. Our result shows that in spatial scale, absorbed nitrogen has great spatial heterogeneity, while dissolved...
This paper evaluates the performance of the IEEE 802.11 broadcast traffic under both saturation and non- saturation conditions. The evaluation highlights some important characteristics of IEEE 802.11 broadcast traffic as compared to corresponding unicast traffic. Moreover, it underlines the inaccuracy of the broadcast saturation model proposed by Ma and Chen due to the absence of backoff counter freeze...
This paper investigates the relative performance of unicast and broadcast traffic traversing a one-hop ad hoc network utilising the 802.11 DCF. An extended Markov model has been developed and validated through computer simulation, which successfully predicts the respective performance of unicast and broadcast in a variety of mixed traffic scenarios. Under heavy network traffic conditions, a significant...
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