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Proposing the optimal AVC coordinating parameters and comparing effects of different planning grid in an scientific manner is one of the functional characteristics of smart AVC. In this paper Auxiliary Optimization Parameter(AOP) system is developed in Hebei grid for this purpose. With the AOP system, the traditional AVC system can be developed to smart AVC(More)
In recent years, electronic mutual-inductor and IEC61850 serial standards are adopted in digital substation. Once electronic mutual-inductor has been used, the input signals of relay protection and other secondary devices are not the traditional analog quantities any more. The simulation system cannot offer such interface up to now, so the secondary devices(More)
Security issues have become a main concern in modern life. A powerful cryptosystem has to be practical, secure and able to be implemented on different platforms. The goal of this research is to develop a basis of cryptographic scheme which utilizes some advanced transform techniques for various applications. Number Theoretic Transforms (NTTs) are relatively(More)
A public-key encryption algorithm and a practical hybrid scheme are proposed in this paper. This algorithm uses the advanced transform techniques, i.e. the Number Theoretic Transforms (NTTs) to diffuse data, and uses a non-linear technique based on the Elliptic Curve Discrete Logarithm Problem (ECDLP) to confuse data. The main advantage of the proposed(More)
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