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The first ±800kV UHVDC transmission system is connected with the East China power grid around 2010 and its maximum transfer capacity will reach to 6.4GW. It brings new challenges and impacts on the network structure, operation security and reliability and system stability. In the paper, East China power gird configuration and load level for 2012 is adopted as base case for study. The power system...
This paper presents a new predictive direct power control (DPC) strategy for three-phase grid connected voltage source converters with constant switching frequency. Source and converter flux are introduced to develop the power flow model of such system. Based on the predictive power model, the output converter voltage vector in each PWM period can be calculated directly. The detailed power variations...
The efficient utilisation of the existing networks with high penetration of wind power needs more sophisticated control schemes using advanced power flow and voltage control resources, namely power electronic controllers (FACTS) while enhancing voltage security and voltage stability control. In this paper, the application of static series synchronous compensator (SSSC) for the purpose of congestion...
The shortcomings and limitations of the transient stability margin were investigated, and the effective range and its criterion of the transient stability margin were presented. A new definition of the transient stability margin which is called the generalized transient stability margin was proposed. Differing from the traditional definition of the EEAC method, this definition can cover wide range...
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