Xie Mei

Application of constraint and the control strategy description language in system analysis

Power constraints and security policy description language (specification) for power grid operation control method and automatic safety device control strategies are described in a new high performance electronic logic description language. Switching method description language is mainly used in the electronic power system operation and control operation information. It consists of an external reference, the macro definition, logical relationship, operation constraints and security control strategy CIM/E format (hereinafter referred to as E) is composed of four parts. At present, the language is becoming a standard and has been widely used in China State Grid Corp internal automation system, security system, protection system, Either from the power grid management or technology is calculated from the power grid stability which has great significance, Will be widely used in security check, DTS, intelligent alarm, stability control system of electric power dispatching application etc.

Operation rule extracting based on time series association analysis in transient stability study

A robust operation rule extracting algorithm is proposed based on adaptive time series association analysis here. It is applied to extract association knowledge among the accumulating massive operation data. A data model describing the system state and topological structure before/after fault happening is built up at first. The initial abstract features are independent of the scale of a power system. A recursive principal component analysis method is employed to yield the reduced-size feature space. The extract features are then fed into the associative analysis. For considering temporal constraint, the generated associative rules not only reflect the relationship between power system operating condition and transient stability, but also reveal some valuable information about operating characteristics. Simulation results on on IEEE 39-bus test system demonstrate the feasibility and efficiency of the proposed method.