In June 12, 2014, the national energy administration and the China Power Enterprise Federation held a joint conference on the 2014 power reliability index in Beijing. The conference released the 2013 annual electricity reliability index, summarized the recent situation of power reliability monitoring and management, and arranged for the next stage of work. It announced the reliability evaluation results of thermal power generation units and power supply enterprises in 2013.
Shi Yubo, deputy director of the state energy administration, Sun Yucai, vice chairman of the CPC Central Committee and executive vice chairman of the China Electricity Industry Federation, and Yang Xuetong, executive vice president of China Machinery Industry Federation, attended the conference. The meeting was chaired by Yang Kun, the chief engineer of the national energy administration.
The National Energy Bureau and relevant departments of the agency, the CEC departments responsible comrades, the national Power Grid Corp, China Southern Grid Corp, China Huaneng Group, China Datang Corporation, China Huadian Corporation, China Guodian Corporation, China China Power Investment Corp and other enterprises and departments responsible comrades, some domestic and foreign power equipment manufacturing enterprise, studies association, and other news media the relevant units attended the meeting.
Executive vice president Sun Yucai pointed out in his speech, the annual electricity reliability index conference, is an important way to summarize the safe and reliable electricity supply capacity and power to test the level of social services and communication of information on the power industry, the government, industry, social widespread attention and recognition. In 2014, the reorganization of the national energy board, electric power reliability management has entered a new stage of development, should actively adapt to the new situation of the transformation of government functions, in accordance with the newly revised "electric reliability supervision and management measures", to further clarify the duties of supervision and management interface, reliability management system and working procedure, carry out electric reliability management work; to give full play to role based on reliability management of the whole process in electric power production safety, use third party agencies and the basic assessment, continuous integration and optimization of the technical support system, promote the integration of construction in electric power enterprise reliability information management and safety management of production and operation; to continue to strengthen the research on the theory of reliability, continuously expand the application the scope of reliability technology, in particular to timely tracking and control of distributed power generation, UHV Study on transmission line, smart grid and power system stability problems; to deepen international exchanges of electric power reliability management work, realize the communication of domestic and foreign advanced electric reliability technology research and management methods, improving power reliability management of China's international influence, draw on advanced international experience, enhance the level of China's electric power reliability management.
Executive vice president in his speech on the practice and task of mechanical industry and power industry in the common development of Yang Xuetong, put forward the machinery manufacturing industry to be more proactive in promoting structural adjustment and upgrading, continue to enhance the ability to adapt to market changes, constantly enhance the endogenous development momentum and the ability of independent innovation, make full use of electric reliability statistical analysis of the data. Continuously improve the equipment quality and reliability of products.
Deputy director Shi Yubo pointed out in his concluding remarks, a year of institutional reform of the State Council, the supervision and administration of electric reliability work to achieve the smooth transition of power reliability supervision and management of the increasing scope of electric reliability management work has been continuously strengthened, the equipment reliability level of power has improved steadily, the work has achieved remarkable results. 2014 is the thirtieth year development of electric reliability management in our country, in summing up the achievements, the whole industry to adapt to the economic and social development of higher demands on the reliability of power management, further change the concept, overall planning, strengthen the supervision and management of electric power reliability work in full. We should innovate and carry out the power reliability management, and research and solve the key and difficult problems of new energy generation reliability, power grid reliability and integrated management of urban and rural power supply reliability. We should revise and improve the rules and regulations, do well in the scientific analysis and prediction of the risks of power system operation and safe and stable operation, integrate and improve the technical support system, and promote the deep integration of reliability management and safety production management. To fully draw on advanced international experience, to strengthen the power reliability management technology standard top-level design, gradually solve the security problem of China's new energy power generation large scale access to the grid, the reliability of work to the leapfrog development of the electric power industry, electric power production plays in the lead role.
The conference released the national electricity reliability index of 2013, combined with trend comparison and industry benchmarking, analyzed the reliability of all the production links of the national power generation, transmission and distribution in 2013, and released the special research results of reliability (see the appendix for the main cases).
Enclosure：
Main situation of power reliability index in 2013
In 2013, the weighted average equivalent coefficient of 100 thousand KW and above coal fired power units was 91.84%, which was 1.09 percentage points lower than that in 2012. The average utilization hour of coal fired units is 5238.06 hours, which is 73.56 hours higher than that in 2012. In 2013, there were 875 unplanned outages of coal-fired generating units, the total time of unplanned outage was 49789.95 hours, and the annual average annual output of the coal-fired units was 0.54 and 32.51 hours, respectively, which was 0.06 times and 12.29 hours shorter than the 2012 annual average value.
The first three types of non planned outages (forced outages) occurred 790 times, and the total time of forced outage was 40827.51 hours, accounting for 82% of the total time of all non planned outages. The average annual number of forced outage stations is 0.49 and 25.88 hours, respectively.
In 2013, the average annual reserve hours for coal-fired units in China were 1002.12 hours, 130.58 hours lower than in 2012. Except for the northeast area, the other five regions of the six regions have different reduction rates, especially in the central China area, which is reduced by 334.01 hours compared with that in 2012.
In 2013, the reliability and evaluation of the 1000 MW fire motor group was 53 units, all of which were coal-fired units, which increased by 12 units in 2012. The equivalent coefficient of availability in 2013 was 92.03%, up 0.59 percentage points from 2012. The average annual rate of 5871.53 hours is 95.02 hours higher than that in 2012. The first three types of non planned outages were 30 times, and the first three types of non planned outages were 1199.27 hours.
In 2013, the average equivalent availability factor of hydropower unit capacity of 40 thousand kilowatts and above was 91.71%, 0.76 percentage points lower than in 2012; hydropower units average utilization hours of 3256.94 hours, compared to 2012 decreased by 238.56 hours; hydropower unit unplanned outage unplanned outage 277 times, a total time of 7668.17 hours, more than in 2012 3187.53 hours; annual average respectively 0.37 times and 10.12 hours, compared with 2012 year average increase of 0.03 times and 3.82 hours.
The first three types of non planned outages took place 209 times, totaling 5185 hours, accounting for 67.62% of the total non planned outages. The average annual number of forced outage stations was 0.28 and 6.84 hours, 0.07 and 3.88 hours, respectively, compared with 2012.
In 2013, in which coal mill, five kinds of main auxiliary equipment reliability statistical thermal power unit capacity of 200 thousand kilowatts and above the water supply pump, blower fan, high-pressure heater (with the following sequence number) were 5242, 3036, 2184, 2174, 3278, than in 2012 increased 228 102, 80, 62, and 128; available coefficients were 92.46%, 93.23%, 93.14%, 93.17%, 93.16%. The statistics of 200MW and above power plant ESP increased from 693 sets in 2010 to 1362 sets in 2013. The desulfurization unit increased from 543 sets in 2010 to 890 in 2013, and the availability coefficients of electric dust removal equipment and desulfurization system in 2013 were 92.18% and 92.59%, respectively.
In 2013, the reliability indexes of the 13 types of power transmission and transformation facilities at the 220 thousand V and above voltage levels of the national grid were maintained at a high level. The national grid 220 thousand kV and above voltage overhead line available coefficient is 99.853%, an increase of 0.025%; 220 thousand kV and above voltage transformer available coefficient of 99.958%, representing a decrease of 0.005%; 220 thousand kV and above voltage circuit breaker available coefficient was 99.977%, down 0.01%.
In 2013, the average power supply reliability of 10 thousand V users was 99.9147% RS1, and the average power outage time was 7.47 hours per household. Which city (Downtown + city + town) the average user power supply reliability rate of RS1 was 99.958%, an increase of 0.009%, equivalent to our city user average outage time by 4.53 hours in 2012 dropped to 3.66 hours / household / household; the average power of the rural users reliable rate of RS1 was 99.905%, for the first time in more than 3 9, an increase of 0.066%, equivalent to China's rural users average outage time by 14.16 hours in 2012 dropped to 8.30 hours / household / household.
Source of information: CEC Reliability Management Center
