Power loss analysis of medium and small cities in Xinjiang and the energy loss r
In recent years, with the rapid economic and social development in Xinjiang, on the demand for energy momentum Xian Zhang, the local and the Corps Network has also accelerated the pace of construction and renovation. In view of geographical and economic features of Xinjiang, the article combines Xinjiang city of Shihezi network status, for the urban area of small and rural area, the main power distribution grid lines long and so great loss of power is weak, analysis of power loss reduction for various reasons and measures of how to improve network efficiency, to achieve the purpose of Energy Conservation.
Key words Shihezi Saving Energy Reduction Measures
With the industrialization and urbanization accelerate the development, Energy Consumption increase, the power supply has restricted the economic and social development is an important factor Saving Work is to implement the scientific concept of development, transformation of economic growth, promote sustainable economic and social development in an important way to ease the power supply and demand tension is an important measure for conflict. China's "Eleventh Five-Year Plan" clearly put forward the task of energy saving and emission reduction targets, Xinjiang Tianfu Thermoelectric Co., Ltd. as the region's energy resources such as an integrated configuration, operation and management of power enterprises, both the commitment to serve the community, and ensure safety reliable, quality supply of responsibility is the task implementation of national energy policies in key sectors, well aware of the energy of power system loss reduction of power enterprises to improve economic efficiency goals and the importance of the role of profits. The line loss rate directly reflects the level of power management level of enterprises, and through the main distribution network energy loss reduction benefit thousands of families, and quality service to the community expectations and the pursuit of power enterprises is the goal.
Loss reduction measures from a large area can be divided into two categories: technical measures and management measures. These two methods as a practical matter, to take technical measures to reduce the line loss is the basis of line loss management for grid power loss characteristics of the law and take appropriate technical measures, to achieve more for less damage, less able to investment to maximize the power saving effect, to increase power economic efficiency. Power Loss Reduction of technical measures related to all aspects of the grid, this paper Shihezi grid and geographical situation, to talk about their humble opinion.
1, fortress Network Status: 1.1 Power fortress at the end of 2008, the total system capacity: 569.55MW; have 110kv and 35kv substation 38, transformers capacity 965.10MVA. 110KV and 35KV transmission line length 1007.64km. (Xinjiang Tianye power plant not included)
1.2 fat supply in recent years, power systems are double-digit rate, but relying on fortress agriculture, industry, mainly processing agricultural and sideline products, seasonal electricity load, resulting in the minimum and maximum peak power load Valley differential. According to 2008 statistics: the highest and lowest power in Thach Thanh electricity load are 519.98MW and 114.70MW; entire network maximum monthly average daily peak and valley difference 91.8MW, monthly average daily loading rate of between 66.4% ~ 92.04%, the difference larger.
1.3 power supply and demand characteristics of the region: the city's industrial electricity consumption accounts for 48.21%, agriculture accounts for 43.66% of urban and rural residents living and Other Accounted for 6.51%. Structural characteristics of supply and demand lead to higher annual 110KV system voltage differential, the maximum 121.41KV, the lowest 86.6KV. 2008 line loss rate was 6.23%, and the highest monthly rate of 8.46% line loss.
2, stone net loss of 2.1 stone electric load of the structure a higher proportion of middle peasants in recent years to develop irrigation agriculture Corps, a large reactive power consumption. Therefore, the seasonal changes in rural power load on the power system reactive power is significant. Each year from May to September, the peak power load of agriculture, the system reactive power gap larger the more common lower voltage operation; from December to April load is low, the excess reactive power, voltage also generally higher.
2.2 Shihezi reclamation area of 7529 square kilometers, and more at the edge of the desert Farms.
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