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A photovoltaic (PV) panel model is at the heart of an accurate performance model for a large PV farm. This paper presents an algorithm to calculate the parameters of the one-diode model of PV modules based solely on the manufacturer's datasheets. The important feature of this algorithm is that through reformulation of the characteristic equations at various points of the current-voltage (I-V) curve,...
This paper puts forward four kinds of quality of equipment, and defines the concept, and analyses the logical relationship between the four kinds of quality, and expound the use of the four kinds of quality in theory. We give a quantitative description of the threshold and the logical expression of the four kinds of quality of the equipment. A mathematical model of the process quality of equipment...
Sneak circuit is studied widely since it is known in the early 1960s. Now it has become an important aspect of system reliability and security. And as more and more new topologies and characteristics are developed in the modern power system, the sneak circuit problem cannot be solved by using the conventional method. Petri net is powerful tool for describing and studying systems and it has been applied...
Partially blind signature, which allows a signer to sign a partially blind message including pre-agreed information, is a variant of blind signature. In 2007 Hu et al presented an efficient ID-based partially blind signature scheme that was believed as a secure one. In 2008, Tseng et al shows that Hu et al's scheme could suffer from serious forgery attack, but they didn't propose the corresponding...
Signcryption is a kind of cryptographic primitive which allows combining the signature and encryption into one scheme efficiently. In this paper we first improve the proxy key generation protocol enforced by Tasi et al and then propose a novel identity based proxy signcryption scheme based on the improved proxy key generation protocol and a identity based signcryption scheme proposed by Libert et...
Wind turbine generator system (WTG) is a complex nonlinear system involving some uncertain disturbances, and its working states change multifarious. A fact was discovered that it showed the typical feature of hybrid system by analyzing its characteristics. Therefore, the hybrid dynamic model of WTG was built based on theory of hybrid automata, at same time hybrid control system was designed for solving...
The authors' reply to comments regarding on resonant and anitresonant frequencies, the validity of the transfer function SAW filter after cancellation and the proposed perfect cancellation are discussed and attested to be mathematically correct.
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