A Study On Electric Power System Planning And Asset Management

As a vital sector, the development electric power industry should be well planned to coordinate with the country's economical construction. Due to the large investment on electric power system, a proper planning is necessary to receive a considerable benefits. In recent years, power system planning is always to be a fundamental and important subject in electric power discipline.Asset management is a new subject towards the equipments serving for electric power system, which includes generation assets and network assets. Since single asset existed in electric power system is no doubt expensive, therefore, asset management that this paper focused on is to pursue a reasonable utilization.With this background, this paper places the emphasis on studies of power system planning and asset management. It includes generation planning, network planning, generation asset adjustment and network asset management in content. On system planning, it mainly discusses several problems as representatives: the generation planning considering distributed generation and the network planning with aging assets. On asset management, it first raises a list of related issues and techniques, and then studies the aging situation and problem in electric power network, especially on transmission network. Also, together with a assessment on aged assets, a series of considerations regarding network asset utilization, maintenance, replacement, renewal, retirement, as well as a relationship between power system planning and asset management has been presented.Some associated considerations and suggestions has been made with the following contents: A reserve strategy has been given for generation planning with distributed generation;A method to estimation the output of wind farm that applied to generation planning has been presented;a adjustment on generation assets (old/small thermal generation assets retirement/expansion) in regional system has been discussed;related models on assessment of aged asset in electric power network are raised;possible analysis guidelines on network aging have beendiscussed;finally, a capacity-variable transmission system planning model associated with network assets has also been presented.The related two tests on 9 bus HV network and Garver's 6 bus network shows that the results are acceptable and reasonable.