Studies On Power System Planning Of Hunan Province And Hydro Electric Energy Planning Of Yuanshui River

With the rapid economic and social development, Hunan province has an ever-increasing demand of electric power. In order to meet the enormous demand of power for the rapid development of the national economy, the power operating departments are lunching a new campaign of expanding constructions of electrical resources and networks in large scales. However, we face the problems of how to reasonably and effectively program the system and how to steadily enter the power market. So it is necessary for us to make a scientific and reasonable program of the next stage of development of the power system of Hunan province, in order to gain more economic and social benefits and ensure the sound and sustainable development of the national economy.The forecast of the power demand is the core part of operating a power system, which is related to the rationality of the long-term programming of the electrical resources and to the balance between demand and supply in short terms. Besides, programming for electrical resources and networks are also concerned with the safe and steady operating of the whole power system. This paper first introduces the situation of the load forecast for Hunan province and the progress made in programming electrical resources. Due to the rapid social and economic development and the high temperature of the summer, power shortage to different extents occurred in Hunan province and many other areas of our country. In order to maintain the rapid development of the national economy, it is necessary to adopt new methods and get access to more complete and precise up-to-date data in forecasting the demands. Besides, rational arrangement of electrical resources can ensure the maximum economical benefits, so it is also worth researching. Then we put great emphasis on the programming of the hydropower plants of the main stream of the Yuan River. The Yuan River's gradient hydropower stations have a stable capacity for accommodation and good power quality, so they can improve the configuration of electrical resources and networks, and relieve the contradiction between the difficulty of peak-load accommodation in flood seasons and the insufficiency of power supply in low water seasons. And this can not only provide environmental-friendly power of good quality and low price, and improve the operating condition of power systems, but also promote the regional economy, and transform the resource advantage into economic advantage. Furthermore, constructions of gradient hydropower stations in the mainstream of the Yuan River will greatly improve the waterway conditions, which will impulse the development of the shipping industry. Backbone hydropower stations being the leading power, middle-size power stations being major components, the gradient hydropower stations in the mainstream of the Yuan River are confirmed to be superior electrical resources judging by various indexes of economy and technology, and thus worth our thorough researching. Finally, considering the direction of the future development, we briefly offer the initial scheme of the power market of Hunan province in this paper.The power system of Hunan province has made great progress in many aspects, increasingly accurate demand forecast reasonable distribution of the electrical resources and the firm configuration of power networks are all solid foundations of Hunan power system, and the initial exploration of the power market also pave the way for future development. At the same time, we should also notice that both the demand forecast and electrical resources programming need further researching. The power market especially needs deep researching, so that we can find a proper market mode specific to the features of Hunan province. And this can maintain a sound, rapid and sustainable development for power systems of Hunan province and provide a stable guarantee for the economic and social development of Hunan province.