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A catastrophic fault in the long-distance wind-thermal-bundled power transmission system (WTTS) would lead to transient angle instability and transmission line overload at the same time in the sending-end of WTTS. According to the traditional emergency control strategy, massive thermal power would be tripped, which is likely to reduce the damping ratio and increase the risk in transient recovery process...
Aiming at the problem of power transmission capacity constraints in large-scale new energy send-side grid, a possible solution of integrated application of FACTS devices including SVC, SVG has been proposed, which can enhance stability of sending end grid and improve sent ability of new energy. Hexi Power Grid in Gansu province is a typical send-side grid containing 10 million kilowatt wind and solar...
With the method of instantaneous symmetrical components, positive, negative and zero sequence components can be gained. The traditional instantaneous symmetrical components are usually implemented under dq0 synchronization reference frame on condition that low-pass filter is adopted in, which causes aggravated dynamic performance. To solve this problem, this paper presents a novel algorithm of instantaneous...
Gansu Jiuquan ten million kilowatts wind power base covers the SVG / STATCOM, TCR type SVC and MCR type SVC. The application effects of these devices need experimental verification, so the device performance test is carried out. Considering the grid structure, the operation of wind farms, referring to the relevant national standard, test items are raised, test methods are proposed. Three compensation...
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