Smart Grid Construction Helps Laiwu Economic Development

On November 1st, the reporter saw a chart on the wall of a “220 kV Pengquan Substation Power Delivery Project” office located in a small building in the Fengcheng Industrial Park. It recorded a “base 46, finished 35, pouring. Taki 32". Li Kai, the technical manager of the project, said that this is the progress of the construction of the power supply line of the Pengquan substation.

At the same time, in the industrial park of Gaozhuang Street in Laicheng District, the 220 kV Lotus Transformer Substation constructed by Shandong Transmission and Transformation Engineering Co., Ltd., the comprehensive building and the power distribution room are being masonry.

According to Zhang Song, a professional engineer of the Laiwu Power Supply Company's Infrastructure Department, this year, the company has started 16 new projects such as Pengquan substation and Lianhua substation, and has expanded a total of 35 kilovolts and above. The project plans to start and put into operation 204.72 kilometers of transmission lines and 169 conversion capacity. Thousands of volt-ampere-hours have created the history of the city's power grid construction. The infrastructure task has also become the most arduous year in years.

Economic development, electricity first. According to reports, in recent years, especially during the “Eleventh Five-Year Plan” period, the city’s power grid construction investment has reached 2.6 billion yuan, 11 substations with 35 kilovolts or more, and 360 kilometers of transmission lines. The completion of these projects ensures the rapid economic development of the city's electricity demand. However, with the economic development, Laiwu economic navigation ships need more adequate power protection, and the construction of a more robust power grid is put on the city's agenda. This year, Laiwu Power Supply Company complied with the requirements of the State Grid Corporation of China for “where the economy develops and where the power grid construction arrives”, closely follows the economic and social development decisions of the municipal party committee and the municipal government, plans ahead, and takes precautions to accelerate the construction of infrastructure projects at 35 kV and above. The implementation of the project resulted in the commencement of the production of 220 kV Lotus Station, 110 kV Zaoyuan and Binhe Station expansion, 35 kV Yihe, Zhujiazhuang, Phoenix, Shuanghuang Line, and Miao and I Lines. Construction of 220 kV Mengjiazhuang, Wenyuan and 110 kV Xueye, the bridge four transmission and transformation projects; good 220kv Lotus Station, Pengquan station supporting transmission line project, put into operation transformer capacity of 880,000 kVA, The transmission line 107.11 kilometers, starting capacity of main transformer 810,000 kVA, transmission line 100.07 kilometers. Accelerate the implementation of direct supply and distribution network, production and maintenance, and technological transformation projects, construct and transform 173 kilometers of 10 kV distribution lines, complete the acceptance of 3 electrified towns, 150 electrified villages, 150 standard villages for electricity use and all users. "One household" transformation, to ensure that the low pressure set copy coverage rate reached 100%.

The completion of these projects will make the grid structure of Laiwu Power Grid more robust, greatly improve the power supply capacity, and provide more reliable energy security for the economic and social development of the city. Taishan Iron & Steel Group is an important backbone enterprise in our city and also the second largest power customer for power supply companies. In the first half of 2010, the net load was about 220,000 kilowatts, but it was far from meeting the need for the annual output of 600,000 tons of special steel projects. The construction and commissioning of the 220 kV Mengjiazhuang Power Transmission and Transformation Project will effectively solve the electricity demand of the Tai Steel Youte Steel Project and the Jiuyang Ironmaking and Rolling Project. The construction of the 220 kV Wenyuan power transmission and transformation project can meet the growing demand for electricity load in Laiwu Steel and Steel City and improve the reliability of power supply. With the Xueye Tourist Area becoming a tourist attraction integrating tourism, leisure and vacation, conference and exhibition, and sporting events, the surrounding facilities are gradually being built and improved. It is expected that the load will increase greatly. The 110 kV snow field power transmission and transformation project is The construction will leave enough space for the development of the Yukino tourist area.

Jinshi Group, which is located in Gaozhuang Street Industrial Park, also serves as the key construction project of the city. After all production and production are completed, the annual production scale can reach 700 million yuan. At present, the first phase of the project has started production. However, the Gaozhuang Street Industrial Park where the company is located has just started and infrastructure construction is being carried out. If the power supply cannot keep up, it will directly affect the development of the company. Laiwu Power Supply Company timely followed the construction of a 220 kV Lotus transformer substation next to the Jinshi Group. After the project is put into operation, it can supply power to Laiwu Steel to the east, power supply to the townships of Niuquan, Fangxia and Yangzhuang in the west, power supply to Gaozhuang, Taigang and the urban areas in the north. The electricity consumption structure in the surrounding ten townships, especially in the southern and western parts of Laicheng, will be effectively improved.

To speed up the construction of the power grid, Laiwu Power Supply Company actively communicates with the municipal, district, and township governments to coordinate projects. The municipal government listed power grid construction projects of 110 kilovolts and above in the city's key work targets in 2011. Each district set up a power grid construction coordination group and regularly held power grid construction coordination meetings. The company’s infrastructure department reported weekly to the district government in the form of project briefings. Progress and problems have increased the efficiency and speed of local coordination work. Townships and townships have set up working groups. The township government undertakes the civil coordination of line projects and the coordination of substations, and timely coordinates civil work, creating a good environment for power grid construction.

Implementation of engineering, annual milestone plan and week plan three-level management. In accordance with the annual milestone plan of the provincial company and the company's actual situation, the company reasonably prepared and issued the company's annual grid construction milestone progress plan. The engineering coordination meeting attended by leaders in charge is held once a month to compare the completion of the monthly plan with the milestone plan, and to release the plan for the milestone next month. The weekly regular meeting was held and a weekly engineering report was issued to strengthen the control of the engineering process.

A remote video monitoring system is implemented at the substation construction site to ensure the quality of the project construction. After a lot of understanding and comparison, the company chose to install a 3G video surveillance system with a low cost and convenient service for a communications company, improve and implement on-site construction safety technology measures, and at the same time do a good job in construction preplans and increase the number of towers and wires. In order to ensure the safety and quality management of the project, the site monitoring of major operations that are affected by the climate, such as concrete pouring, and the prevention of personal injury and other safety and quality accidents, will continue. In June, the group company organized an inspection and commissioning inspection team to review and confirm the application materials of the 110kV Hanwang Xu and Yangjia Town substation projects that were successfully put into operation. It was agreed that the approval documents for the two project approvals were complete and the construction quality was excellent. The safety condition is good, the data is standard and credible, and the project is completed and put into operation on schedule; the equipment and system are in good operation during the assessment and commissioning period; the scores for reaching the standard are all above 94%, and the conditions for reaching the standards are met. On June 29, the provincial group issued a document to designate the 110kV Hanwang Xu and Yangjia Town Substation Projects as the National Grid Corporation's standard production and commissioning project. At the construction site of the 220 kV Bangladesh substation, Lu Liqing, the project director from Shandong Liancheng Construction Engineering Supervision Co., Ltd., said that since they entered the site in July, they have been in strict accordance with the design requirements, regardless of site construction or material checks. Only one purpose is to strive for the National Grid quality project and the "Taishan Cup" project in Shandong Province.

According to responsible comrades of Laiwu Power Supply Company, during the “Twelfth Five-Year Plan” period, Laiwu Power Grid will also invest 3.8 billion yuan to build 17 substations with 35 kilovolts or more and 550 kilometers of transmission lines. At that time, Laiwu Power Grid will form Laiwu Power Plant, Laicheng Power Plant and 500kv Luzhong Transformer Substation as power supply support, with a 220 kV double ring network as the central network shelf, and 110 kV and 35 kilovolt distribution network dual power supply radiation power supply. The modern grid with clear structure, advanced equipment, flexible dispatch, stable operation, safety, reliability, and economical rationality has initially built a strong smart grid with the characteristics of “informatization, automation, and interaction”.

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