Recently, the rain and snow cooling weather continued to affect many places in northern China, ** Meteorological Observatory issued an orange warning for cold wave and a yellow warning for blizzard and freezing, and different degrees of snowfall occurred in North China, Huanghuai and other places. The State Grid resolutely implements the deployment of warmth and supply this winter and next spring, issues a yellow warning of cold wave and heavy load rain and snow freezing in advance, gives full play to the role of the resource allocation platform of the large power grid, takes multiple measures at the same time, and implements comprehensive policies to deal with rain, snow and ice. All units of the company implement the key to power supply "3334", strict and strict, detailed and detailed, practical and practical, organize backbone forces to strengthen power grid operation, equipment operation and maintenance, strengthen the monitoring and special patrol and special protection of power transmission and distribution, strengthen the linkage of production, dispatching and emergency duty, effectively improve the disaster resistance of power grid facilities, do a good job in customer power supply guarantee and quality service, and ensure that the people are warm in winter.
Co-ordinate dispatch to ensure the smooth operation of the power grid
Since December 10, in view of the continuous large-scale cold wave weather, the state, the grid and the provincial dispatching agencies have strengthened coordination and consultation, closely tracked the changes in severe weather in various places, adjusted the operation mode in a timely manner, made every effort to ensure the grid and start-up intensity, arranged coal power to "open as much as possible", organized all kinds of supporting power sources to be fully and stably, and coordinated the resources of the whole network to support the balance of tight areas, so as to achieve "resource complementarity, time and space mutual assistance, and market reciprocity", and make every effort to ensure the safe and stable operation of the power grid and reliable power.
On December 13, heavy snowfall occurred in many places in North China, and the temperature dropped significantly. The North China Branch of the State Grid summarized the experience of successfully fighting large-scale ice disasters in previous years, tracked weather changes in a timely manner, strengthened the analysis of load characteristics, strengthened the operation and management of power generation equipment, and made arrangements for the balance of power and electricity.
The dispatching and operation personnel of the North China Branch of the State Grid pay close attention to load changes to ensure the safe and stable operation of the power grid.
The North China Branch of the State Grid actively communicates and coordinates with the first-class departments and power generation enterprises, reasonably arranges the start-up mode of the heating unit, and excavates the peak regulation capacity of the heating unitCoordinate the power resources of North China Power Grid, strengthen inter-provincial standby sharing and inter-regional and inter-provincial liaison linesStrengthen the monitoring of heavy-duty lines and transmission sections, and do a good job in power flow pre-control and accident planningGive full play to the role of the peak shaving auxiliary service market in North China, coordinate the allocation of peak shaving resources, and improve the level of new energy consumptionOptimize the operation strategy of the power grid on a rolling basis to ensure the safe and stable operation of the North China Power Grid and the reliable power of the capital**.
The dispatching and operation personnel of the Northeast Branch of the State Grid carefully dispatched to ensure the safety and reliability of electricity.
On December 13, snowfall fell again in the Tohoku region. Since the beginning of winter this year, affected by the phased cold wave weather, the load of the Northeast Power Grid has reached a new high for five consecutive times. The Northeast Branch of the State Grid comprehensively studied and judged the load change trend, and in accordance with the principle of "should be combined and should be exhausted", all 4 million kilowatts of standby and shutdown units were activated, and long-term power balance information was released in advanceSupervise the dispatching and power generation enterprises of the three provinces and one region to strengthen the monitoring of units, optimize the operation mode of pumped storage units, and improve the peak capacity of the power gridAdhere to the principle of "medium and long-term basis, mutual assistance of spot surplus and shortage, emergency dispatch and emergency relief", make full use of the auxiliary service market, and improve the ability to ensure supply;Dig deep into the potential of power transmission through inter-regional and inter-provincial channels, do a good job of precise peak staggering between provinces, and mutual assistance between surplus and shortage, so as to ensure the balance of power and electricity to the greatest extent.
Meticulous inspection to ensure reliable power**
A new round of snowfall is coming, and there is a wide range of rain and snow freezing and low temperature cold wave weather in Shandong Province. In Binzhou City, the snowfall has lasted for 4 days, and the State Grid Shandong Binzhou Power Supply Company continues to strengthen the inspection of equipment and important transmission lines to ensure the stable operation of the power grid and reliable electricity consumption for customers.
Employees of State Grid Shandong Binzhou Power Supply Company inspect the 500 kV Fubin line.
On December 13, the transmission and operation inspection personnel of State Grid Binzhou Power Supply Company found that there was a large amount of snowfall in the Zhanhua area through the visual monitoring device, and immediately arranged personnel to conduct inspections. The company's inspectors walked on the snow and mud to inspect the 500 kV Fuhama line. During the inspection, they used telescopes and rangefinders to measure line data, and used drones to check the changes in line sag and corridor conditions, and made inspection records.
A total of 7 ultra-high voltage lines pass through Binzhou City. State Grid Binzhou Power Supply Co., Ltd. adopted the method of "visualization + drone + manual inspection" to carry out special inspection of ultra-high voltage lines, dispatched 116 personnel to inspect 310 transmission lines to ensure the safe operation of the power grid.
State Grid Henan Luoyang Power Supply Company transmission operation and maintenance personnel braved the snow to patrol the 220 thousand volt Fuluan line.
On December 13th and 14th, there was a wide range of rain and snow in Henan, and there was heavy snowfall in many places.
The 220 kV Fuluan line, located in Funiu Mountain, Henan Province, has an average altitude of more than 1,100 meters and undertakes an important power supply task in Luanchuan County, Luoyang City. On December 14, the Luanchuan transmission maintenance team of State Grid Luoyang Power Supply Company walked for more than 3 hours to complete the inspection of the cross-river section of the Fuluan Line overnight, and carried out 24-hour monitoring of the Fuluan Line through shift operations.
In order to facilitate the safe use of electricity by electric heating customers, the State Grid Luoyang Power Supply Company has set up 123 emergency repair sites and dispatched 129 emergency repair teams to prepare for 24-hour emergency repair.
Employees of the State Grid Shaanxi Shangluo Power Supply Company Transmission and Inspection Center inspected the 330 thousand volt Xianhe line.
Recently, snowfall has continued in many places in Shaanxi, with a snow depth of 5 to 8 cm in northern Shaanxi, northern Guanzhong, and Qinling mountains. State Grid Shaanxi Electric Power issued a yellow warning for rain, snow and ice, relying on a new generation of emergency command system to distribute and implement 1,450 early warning action tasks.
The 330 kV Xianhe line is an important transmission line that crosses the Qinling Mountains. On December 14, the transmission and inspection center of the State Grid Shangluo Power Supply Company found that there was snow on the transmission line intelligent monitoring platform, and there was a hidden danger of ice covering the road, so it immediately sent the early warning information to the staff's mobile phone through the platform. Wang Juntao and his colleagues from the Power Transmission and Inspection Center rushed to the depths of Qinba Mountain to measure the ice covering of the Xianhe Line Tower and the line through drones and rangefinders. No icing was found on the line after inspection, and the icing warning was lifted.
At present, State Grid Shaanxi Electric Power has completed 442 key substations and 137 key lines of special patrol and special protection, and investigated 135 line visualization devices in Qinba and Guanzhong mountain areas to ensure the safe and stable operation of power grid equipment.
Take the initiative to serve and protect the masses for a warm winter
On December 14th, the land of western Beijing was covered in snow after continuous snowfall. At 9 o'clock, Zhang Lizhi, the account manager of the "coal to electricity" of the Miaofengshan Power Supply Station of the State Grid Mentougou Power Supply Company, and his colleagues Wu Ke and Fu Jia came to the home of Li Yuanrong, an elderly man in Tanchang Village, Miaofengshan Town, to check the voltage and electric heating. The spacious and bright room is clean and tidy, the electric heating equipment by the wall works silently, and the room thermometer shows 22 degrees Celsius.
Since using electric heating, the house is not cold at all, and look at the phalaenopsis I raised. Li Yuanrong said. Miaofengshan Town is the first coal-free town in the Mentougou area, and it is also an area severely affected by floods this summer. Since November, Zhang Lizhi and his colleagues have been inspecting the lines and equipment of the "coal-to-electricity" village once a day. During this round of snowfall, 38 account managers of State Grid Mentougou Power Supply Company carried out grid service guarantee in 106 "coal-to-electricity" villages, and responded to customer demands 24 hours a day.
The operation and maintenance personnel of the State Grid Beijing Urban Power Supply Company carried out a special inspection after the snow in the "coal-to-electricity" area of Baitasi to ensure reliable electricity consumption for residents.
In order to cope with the cold wave and cooling weather, more than 8,000 cadres and employees of State Grid Beijing Electric Power actively carried out the work of keeping warm and ensuring supply, so as to ensure that "the snow does not stop and people do not evacuate", and resolutely ensure the smooth operation of the capital power grid and the reliable power supply of customers. The company strengthens the external power generation, arranges all local unified dispatch units to be connected to the grid, and scientifically arranges the operation mode of the power gridRelevant units have strengthened the professional inspection and live detection of station line equipment, strengthened the anti-icing monitoring of transmission lines and the preparation for ice melting, and made every effort to ensure the power supply of six types of heating customers, such as important customers and boiler rooms of heating and heating plants, and "coal-to-electricity" customers, and increased personnel for power facilities in the disaster-stricken areas this summer to shorten the inspection cycle. The company organized 2,453 emergency repair personnel, 860 emergency repair vehicles, and 109 emergency power generation vehicles to be stationed in key areas such as Yanqing, Huairou, Mentougou, and Fangshan in advance to make comprehensive emergency preparations.
On December 14, Hebei continued to issue a yellow warning for heavy snowfall, with heavy snow in Baoding, Langfang and the south areas, and heavy snowfall in some areas. "At present, the load of Hebei power grid remains at a high level. We optimize the way the grid operates to ensure that there is sufficient power**. State Grid Hebei Electric Power Dispatching and Control Center Shi Min introduced.
During this year's flood season, Zhuozhou suffered a catastrophic flood, and Hebei gave priority to the restoration and reconstruction of power facilities from coal to electricity, so as to ensure that the affected people were warm in winter. Since December 10, Hebei Baoding, Xingtai, Handan and other places ushered in a sharp drop and blizzard weather, State Grid Hebei Electric Power arranged the operation of the power grid in advance, organized various specialties to implement equipment anti-freezing, heating and power protection, disaster prevention and other measures, to ensure reliable power.
Employees of the State Grid Zhuozhou Power Supply Company in Baoding, Hebei Province inspect the "coal-to-electricity" line.
We carried out special inspections of 'coal-to-electricity' and power supply lines of thermal power stations overnight to ensure that hidden dangers on the lines were detected and dealt with as soon as possible. Yu Weirong, deputy director of the Shuangta Power Supply Institute of the State Grid Zhuozhou Power Supply Company, said.
In order to ensure the reliable electricity consumption of residents, State Grid Hebei Electric Power implements 24-hour electricity monitoring for key customers in the "coal-to-electricity" station area and electric heating, and carries out special post-snow inspections on the damaged and restored "coal-to-electricity" lines in the affected areas, so as to eliminate hidden dangers on the lines in a timely mannerRelying on provincial, municipal, and county companies, we will strengthen emergency duty and information reporting to ensure timely response to electricity demand. In response to the continuous snowfall, State Grid Hebei Electric Power optimized the setting of 793 repair points, deployed 8,714 emergency repair personnel and 1,060 emergency repair vehicles, and created a "30-minute emergency repair service circle" according to the heat distribution map of "coal to electricity" customers to ensure rapid response to power supply emergency repair.
Employees of State Grid Tianjin Wuqing Power Supply Company inspected the 110 thousand volt Quanfeng substation.
On December 14, in Xisunzhuang Village, Panzhuang Town, Ninghe District, Tianjin, Liu Yong, the village secretary of State Grid Tianjin Ninghe Power Supply Company, came to the home of Zhang Yushan, a 68-year-old elderly man living alone, to inquire about the heating situation at home and check the hidden dangers of the lines in the house. After the winter of this year, Liu Yong visited the lonely elderly and difficult families in Sunzhuang Village one by one, and cooperated with the Communist Party member service team of the State Grid Tianjin Electric Power Heart to Heart (Ninghe Third Team) to inspect the power supply facilities of the two economically weak villages to provide 24-hour service.
At present, the Tianjin power grid is operating normally, and the State Grid Tianjin Electric Power has deployed a total of 105 emergency repair teams, equipped with 643 emergency repair vehicles and 29 emergency power generation vehicles to ensure the safety and reliability of power and keep the bottom line of people's livelihood electricity.