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Ongoing developments in the electricity system are changing the requirements for planning and design of distribution networks. Based on field research at several Dutch distribution network operators a conceptual planning process is defined and current practices in distribution network planning in the Netherlands are investigated. Currently mainly traditional deterministic approaches are applied, but...
The reserve grid is a redundant MV grid, which serves as an emergency power system (EPS). It is designed to compensate interruptions of the MV grid or substations by offering an independent connection to an additional substation. The challenge is to find the optimal topology regarding costs and reliability. The locations of the customers and the substation have to be considered in the planning of...
Considerable development of non-traditional transmission has been planned and implemented in the Northeast, including ties interconnecting ISO/RTOs. This paper describes how ISO New England and the New York Independent System Operator both accommodate non-traditional transmission development. The paper also describes the planning, implementation, and operating experience with nontraditional transmission...
With the continuous development of Shanghai 110kV power grid, planners raise higher and higher demands to selecting suitable connection mode for different regions. From the characteristics of different regions in Shanghai, this paper made theoretical technical and economic study on connection modes corresponding to different 110kV power transformer capacity through establishing a reasonable mathematical...
Planning is vital for the development of power system; and the quality of planning has direct influence on security, reliability and economy of the power system in the future. Therefore, it is urgently needed to study quantitative evaluation method for distribution network planning. Firstly, this paper proposes a practical comprehensive hierarchy and method on evaluation of distribution network planning...
Resources are constrained at utilities and utility engineers and managers search for better tools to help them direct resources appropriately in order to improve reliability. Today's reliability indices and other circuit statistics and measures may not be sufficient to provide an indication if additional resources should be spent on improving a circuit's reliability. Customer Exposure Ratio (CER)...
This paper describes the challenges and opportunities of greenfield planning of economic power systems. Planning criteria and methodology of network planning have to be adapted and optimised for greenfield development of a new metropolises. The approach to designing a high voltage network for an entire city from scratch is explained. Necessary network studies and investigations are described. Efficient...
A hybrid model for substation locating and sizing is presented in this paper to work out the number of newly-built substations and capacity-expansion, load assignment and optimal size of substation. Geographic information system is used as a platform to manage a great deal of data in this method, in which the optimum assembly model of the substation capacity and the number of substations be the first...
The blackout has become worldwide concerned problem. We focus on the aspects of causes and restoration. In this paper, we reviewed the blackout in Hainan Island power system and analyzed the causes and restoration procedure. Some experience was summed. At last we put forward to some exposed problem and gave some suggestion.
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