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HVDC for long-distance power transmission is of many significant technique advantages. Wind generation bundled with the support by conventional thermal generation enables the generation controllable and more suitable for being sent over to remote load centre. Hence Wind-thermal-bundled power transmission by AC/DC system and its coordinated control has become an actively pursued research subject recently...
Pathologists often rely on features of the subcellular structures, i.e., nucleus and cytoplasm, to differentiate different types of immune cells. Accurate segmentation of the sub-cellular structures can help classify cell types. However, segmentation in histology tissue images is very challenging, due to, intra-class variations and inter-class similarity, complex and crowded background, and noisy...
This paper introduces the structure and operational mechanism of Modular Multilevel Converter-High Voltage Direct Current (MMC-HVDC) and the mathematical model for the MMC-HVDC system in d-q synchronous reference frame is developed. When supplying power to passive networks, the MMC-HVDC controller at the passive network side, which contains a novel inner fast current loop and an outer voltage loop,...
The application of modular multilevel converter (MMC) to High Voltage Direct Current projects has to consider voltage balancing of the multiple floating capacitors. The common voltage balancing strategy, which based on the nearest level modulation (NLM) method, benefits from satisfied voltage balancing, but draws back the performance by its high switching frequency and high switching losses. This...
We propose to use the product of a competitor's h-index and a weighted sum of the citations of its h-core patents as a Core Value characterizing the competitor's h-core performance in terms of both quality and quantity. The key competitors are those of the greatest Core Values. The approach is applied to empirical data and compared with similar measures such as the products of the h-index and other...
In-service PMD measurement using idle channels in an operational DWDM long-haul network is realized with two novel measurement approaches during a field trial. Accurate PMD results are obtained without impacting live network traffic.
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