Distribution automation: Applications to move from today's distribution system to tomorrow's smartgrid
In 2008 the Hydro-Québec Distribution roadmap was completed. The resulting roadmap is based on customers' expectations, Hydro-Québec's business drivers, available technologies, Hydro-Québec's context and electrical distribution industry trends. This paper will present the distribution roadmap and then will focus on application and technology strategy to move from today's distribution network to tomorrow's Smartgrid.
General Space Vector Modulation of A High-Frequency AC Linked Universal Converter for Distributed Generations
A high-frequency (HF) ac linked universal converter is proposed for distributed generations interfacing three-phase ac with single-phase ac or dc. The primary and secondary of the HF isolation transformer are, respectively, formed by a three-to-single-phase matrix converter and a cyclo converter. Based on the operating principle, a general and simple to be implemented space vector modulation (SVM) is developed from that for the conventional indirect matrix converter and constantly operated virtual dual-active-bridge converter. Simulation studies carried out on different amplitudes and frequencies of single-phase ac output and dc output demonstrate effectiveness and simplicity of the proposed converter with the SVM solution.
Wireless technologies for distribution automation
This paper briefly discusses the importance of automating and communicating with distribution equipment. Then, the bulk of the text focuses on available communication technologies and the pros and cons of each. Information used in the following paper has been accumulated over years of research and experience in the wireless industry. It has been compiled here to help utility engineers better understand the various communication options that can be used to automate distribution equipment. These include: power line carrier; landlines; and wireless options.