Natural language interface and database issues in applying expert systems to power systems

Article Abstract:

Applying an expert system to a power system operation requires a complete embedding of the expert system into the environment of power system control which includes computational facilities and an operating staff. The environment is concerned with process data transmission and administration, data processing and model-representation. The control system provides input and output means. The ideal expert system will fit into these roles without requiring a special interface or data preparation. Natural language interfaces can offer an open system which includes the operator and data servicer. The open system must include several language levels. The levels do not have to be implemented in all subsystems, but they should be designed as languages and not as separate codes.

Systems analysis, Expert systems, Embedded systems, Electric power plants, System Design, Natural language processing, User Interface, User interfaces (Computers), Power Plants, Natural Language Interfaces, Diagnostics

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Coupling between knowledge-based and algorithmic methods

Article Abstract:

Power system planners are trying to combine knowledge-based systems with traditional algorithmic software for future energy management systems (EMSs) based on open architectures. System security and quality must remain high while power system operations are in the process of optimization. Software integration remains a key problem, but some expert system modules are more easily integrated with hybrid software and hardware systems. New research topics include experiments in the automation of complex tasks by intelligent executive coordination, development of new software organizational schemes allowing for greater flexibility and new methods for exchanging data between different software paradigms.

Knowledge-based systems, Strategic Planning, Software Design, Energy Management, Software architectures, Knowledge-Based System, Algorithm Analysis, Software Architecture, Open Systems

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SIG - a general-purpose signal processing program

Article Abstract:

A general-purpose customizable signal processing, analysis, and display program called SIG is described that performs manipulations on time-and-frequency-domain signals. SIG can accommodate other representations for data, such as transfer function polynomials. There is a menu mode for occasional users and a command mode for daily users; custom menus and new commands can be defined, and user-written software can be incorporated. DSP operations include: digital filtering; auto-cross spectral density; transfer function-impulse response; convolution; forward-inverse Fourier transforms; deconvolution; identification; and simulation with ARMAX models.

Signal processing, Software Packages, Functional Capabilities, technical

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