In order to ensure that things or work can be carried out correctly, it is often necessary to make a plan in advance, and the content and form of the plan should be carried out around the theme, and finally achieve the expected effect and significance. What are the characteristics of an excellent scheme? The following are my collected papers on the problems and solutions of line loss management in power supply enterprises. Welcome everyone to learn from it, I hope it will help you.
Problems and solutions of line loss management in power supply enterprises
1. 1 unscientific and unreasonable management.
The development goal of modern electric power enterprises is to cooperate with the socialist market economy, meet social needs and promote the development of national economy. This situation also makes the economic benefits in line loss management ignored. Power supply enterprises focus on increasing the number of customers and expanding the scale of electricity consumption, thus improving economic benefits. Line loss management can not be effectively implemented, and its economic benefits can not be directly reflected through the management system, which makes the staff involved in line loss management in various departments not enthusiastic, and line loss management can only be regarded as a "sideline" of power supply enterprises. To reduce the line loss rate, power supply bureaus at all levels need to cooperate with each other, but many enterprises are only responsible for line loss management in their own areas, and there is no unified and coordinated management, which leads to too scattered line loss management and cannot achieve the ultimate goal of line loss management.
1.2 The line loss management mechanism is not perfect.
In view of the fact that power supply enterprises pay little attention to line loss management, power supply enterprises need to establish an effective incentive mechanism to improve the enthusiasm of management departments at all levels of power supply enterprises and take line loss management as an important task to improve economic benefits and social progress of enterprises. According to the operation of power equipment, common sense of electric energy measurement, data accuracy of electric equipment, electricity stealing, power grid configuration and dispatching in line loss management of Dongguan Power Supply Bureau, the technical and economic indicators of line loss rate are comprehensively investigated. Due to the lack of management mechanism, the technical and economic indicators of line loss rate can not be effectively guaranteed, which requires the relevant departments to rationally allocate the safe operation, reasonable operation and timely and effective maintenance of lines in line loss management. It is also necessary to improve various laws and regulations, and the establishment of line loss management system needs to comprehensively manage and punish the legal content of line loss with legal weapons.
2 power supply enterprise line loss management countermeasures
2. 1 clarify the relationship between loss reduction theory, technology and management.
Because Dongguan Power Supply Bureau occupies a dominant position in regional power supply management, its line loss rate is not optimistic, which has a great impact on regional economy and corporate image. Dongguan Power Supply Bureau advocates the development of power network through science and technology, which greatly improves the scientific and technological level of power network operation, but it has not made clear its thinking on network loss management. The improvement of scientific and technological level is not only in the process of operation and development, but also needs to be applied to the maintenance and management of the whole power grid. Clarifying the relationship between technology, theory and management of loss reduction can improve the line loss control situation of power supply enterprises and effectively reduce the line loss rate. Technical loss reduction and management loss reduction can lead to the reduction of theoretical loss value. In the actual line loss management, a large amount of capital is needed for technical loss reduction. By optimizing the power grid level, improving the power grid structure and optimizing various power equipment, the line loss rate can be reduced. It needs the joint efforts of enterprises, all walks of life and the broad masses of the people to ensure that the technology loss reduction can achieve the due results. Technology loss reduction needs management, and management loss reduction also needs management. On the premise of theoretical loss reduction, both are indispensable, otherwise its social and economic benefits will not be realized.
2.2 improve the line loss management model
Many electric power enterprises in China have not established a relatively sound and perfect line loss management model, which leads to the failure to effectively implement line loss management. Based on the power grid scale of Dongguan Power Supply Bureau, it is necessary to set up a line loss management office and set up competent departments in towns under the jurisdiction of Dongguan Power Supply Bureau to establish a comprehensive line loss management system. Combine the strategic goal of enterprise development with line loss management, and effectively manage line loss based on national interests and enterprise interests.
2.3 Strengthen the incentive mechanism of line loss management
Dongguan Power Supply Bureau is the largest power supply management enterprise in Dongguan. Strengthening the incentive mechanism of line loss management needs to be guided by the development status and strategic development goals of township power supply sub-bureaus, and vigorously promoted at headquarters, so as to improve the enthusiasm of various graded power supply enterprises and promote the overall promotion and development of line loss management in Dongguan. For employees of enterprises, especially for electricity inspection, the incentive methods adopted by employees of all departments and levels should follow the principles of fairness, justice and openness in order to achieve good incentive effects. The incentive mechanism should be time-sensitive, and encourage the units, departments and employees who have performed well in the online loss management process in time to achieve the ultimate goal of incentive effect.
3 power supply enterprises energy saving and loss reduction measures
3. 1 Loss reduction measures of power grid during operation period
When the load capacity of transmission line exceeds the actual load capacity in the operation of power grid, it will cause load loss; No-load loss is the loss caused by the operation of power equipment during transmission. In view of these two situations, it is necessary to adopt advanced technical equipment and transmission materials to improve the load capacity of transmission lines and increase the conductor section of transmission lines. The installation and selection of power equipment should focus on energy saving, and all kinds of power equipment should be rationally configured to achieve the effect of energy saving and loss reduction. Choosing a suitable working voltage can effectively reduce the loss; Stabilizing three-phase voltage load can save a lot of electricity for power enterprises.
3.2 improve the layout and structure of rural power grid
Dongguan Power Supply Bureau should carry out rural power grid reconstruction and construction, improve power supply reliability, operational flexibility, power grid structure rationality, power supply quality standardization and qualification, and facilitate maintenance and management. To improve the rural power grid structure, we must first investigate the rural power load on the spot, make detailed records and statistics, rationally arrange transformers, reasonably determine their models and capacities, ensure voltage quality and reduce line losses. Because most of the power loss of transmission lines is in the trunk line, measures such as increasing conductor section, transferring load and balancing load are adopted to improve voltage quality and realize energy saving and loss reduction.
3.3 The use of energy-saving power equipment
We can save energy and reduce the loss in the process of using electricity. First, the use of energy-saving electrical equipment, reasonable arrangement of lighting in public places and urban buildings, to achieve the effect of reducing losses and saving energy. Second, use energy-saving transformers; Third, improve the accuracy of the electric energy metering device. In view of the scientific and technological development of Dongguan Power Supply Bureau, the introduction and development of energy-saving power equipment is an effective way to promote the continuous development of Dongguan Power Supply Bureau, and it is also an effective means to reduce the line loss rate and improve economic benefits.
4 conclusion
To sum up, in order to seek higher, stronger and faster development, power enterprises need to take line loss management as the main task of enterprise development while meeting social needs. Only in this way can power enterprises clearly understand the influence of line loss management on the economic benefits of enterprises and realize the safe and stable operation of power grid. From the perspective of social and economic development, it not only improves the economic benefits and social image of power enterprises, but also promotes the stable, healthy and sustainable development of the national economy.
Problems and solutions of line loss management in power supply enterprises. Influence of line loss on economic benefits of electric power enterprises
Line loss rate is an important economic and technical index for power supply enterprises to measure economic benefits, and it can be said that it is also a reverse index. If certain measures can be taken to reduce the line loss rate, it shows that power supply enterprises can obtain higher economic benefits with less electricity purchase and lower sales costs, and the overall profit of enterprises will naturally increase. Line loss rate not only has a great influence on improving enterprise profits, but also is an index that can be controlled by technical means. Reducing the line loss rate is an important responsibility of the production technology department of power supply enterprises. Measures can be taken to reduce the line loss rate in production management, power consumption management, related equipment management, product operation management and many other aspects. The influencing factors of reducing line loss rate on profit are expressed by the formula: profit increase = electricity sales-electricity sales 2- planned line loss rate (2- actual line loss rate) × electricity purchase unit price.
Second, realize the economic benefits of enterprises by reducing the power loss rate.
1. Improve the enterprise line loss management system
Enterprise employees need to do a good job in line loss management from all directions and angles, and to strengthen line loss management, we must start with leadership. Power supply enterprises must establish a complete and good line loss management network. The director can co-ordinate the overall management, and the deputy director of production is mainly responsible for the details. Full-time technicians from the marketing department, dispatching center and power supply department are grouped and hold regular meetings to study and analyze important issues. Specific research topics should be discussed whenever and wherever possible to ensure smooth communication channels and timely and accurate feedback of relevant power information, so as to formulate reasonable measures to reduce losses.
2. Calculation, analysis and scheme of line loss
There are various methods to calculate the line loss rate of power supply enterprises. In this paper, the equivalent power of nodes is used to convert the energy loss of enterprises into electric energy loss, and it is calculated on the computer according to the power flow calculation program. The formula of relevant algorithm is as follows: in this formula, δA = 3i 2 pjrt,10-3 = k2 (p2pj+q2pj)/u2rt10-3. Ppi=AaIQ2PJ=ArI In this formula, Aa is active power and Ar is reactive power. Generally speaking, the operation data collected from the electric meter is used as the basis for judging the calculation of line loss, because the collection process is relatively convenient and accurate. The calculated theoretical value of each line should be compared with the actual value regularly. For the line loss changes of various power grids and lines in different time periods and different electrical equipment, it is necessary to investigate and consult relevant operation records and business ledgers, make targeted comparative analysis, and formulate specific loss reduction plans according to the final results. When the economic situation permits, the fixed loss and variable loss are in a state of dynamic balance. If the fixed loss value is greater than the variable loss value, it means that the line and electrical equipment are in a light load state, resulting in higher calculated and actual line loss values. There are several ways to solve this problem:
(1) Increase the power load of power lines and equipment, make the electricity price reasonable and transparent, and ensure that there is enough transmission cost for the whole line.
(2) Vigorously promote the use of low-energy power transformation and distribution equipment and transform high-energy transformers.
(3) Change the present situation of "big horse-drawn car", adopt scientific means to improve the load ratio of transformer and reduce the no-load ratio of transformer.
(4) Theoretical research shows that the fixed loss of electrical equipment is directly proportional to the operating voltage, so to reduce the line loss rate, the operating voltage of the whole line should be reduced first. Taking 10KV line as an example, the total loss rate can be reduced by 3.5% for every 5% drop in operating voltage.
3. Strengthen the research on technology loss reduction.
We should increase investment in relevant loss reduction technologies, transform those phenomena that have been put into operation for a long time, insulation aging and unreasonable layout as soon as possible, and vigorously promote the use of green new energy.
(1) After the transformation of the high-voltage distribution network, in order to reduce the use of low-voltage power supply, the high-voltage lines should be extended as much as possible, and the transformers should be placed in the load center as much as possible. Expanding the application range of high-voltage lines can not only reduce the loss rate of power supply lines, but also effectively improve the voltage quality. If high-voltage lines are used in power supply lines with the same capacity, the active loss in the later period will be greatly reduced, thus achieving a very obvious loss reduction effect.
(2) In the transformation of low-voltage power grid, anti-aging household wires and insulated wires should be adopted, and related metering devices should be separated into households to reduce line loss. The transformation of power grid equipment in this way can not only improve the power supply safety, but also greatly reduce the line loss rate.
Third, the conclusion
The line loss rate of power grid can not only measure the energy consumption loss of power sector, but also measure the economic benefits of China's power industry. The greater the line loss rate, the more power is lost, so it is very important for the development of China's power industry to take measures to effectively reduce the line loss rate of power enterprises and improve economic benefits.
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