The efficiency of the charging pile inspection was increased by 154%.

The row of charging piles in the highway roadside, community car sheds, streets and lanes, and charging stations are transporting energy for new energy vehicles. State Grid Hubei Electric Power Statistics shows that in the first quarter of this year, Wuhan residents' user charging piles reached 2464 households, exceeding the total annual report volume of more than 2020. The installation of a large amount of charging pile equipment is installed, and the safety and "quasi -header" during charging have become the most concerned issues of the owners. A reliable and efficient charging pile "physical examination instrument" - Provide certain guarantees for charging security.

However, there are some "shortcomings" in the existing charging pile detection system: shortcomings: insufficient monitoring indicators -no simulation fault detection, less indicators, and difficult to get clear and intuitive reflection of the "physical condition" of the charging pile; ——The inspection personnel hand -operated workload is extremely large, and the degree of automation is low. On average, the basic performance test test of each DC electric charging pile takes more than 4 hours, and the efficiency is greatly reduced; In terms of, it is inconvenient to carry out testing and lacks effective centralized control ... In order to solve the problem, in recent years, on the basis of the early research charging pile inspection and testing technology, Wuhan Nanrui Co., Ltd. of the State Grid Institute of Electricity Science Institute of Measurement Test Technology Research Institute, the Institute of Electrical Sciences and other units of the Institute of Electric, the Institute of Electrical Sciences, carried out the research on the research on "intelligent testing and monitoring of electric vehicle charging facilities".

During the project, the technicians of the Hubei Provincial Institute of Measurement and Testing Technology undertake almost all the measurement work during the research and development process, participate in the research and formulation of the overall technical solution, and formulate the "inspection of the inspection The "Specification of the on -site Testing of Electric Vehicle Charging Equipment" further clarified the measurement requirements of electric vehicle charging piles in our province, improved applicability and on -site testing efficiency, and promoted the testing pile inspection to be more efficient and standardized. Li Liangbo, the person in charge of the project, said that there are many types of charging piles on the market, the interfaces are not uniform, and the quality is uneven. In the process of formulating the "general standards" of inspection and testing, the Hubei consolidator spent a lot of time and energy analysis equipment. In the end, the "balance point" was found in the actual situation of diversification, and a common inspection method was formulated.

From the comparison of major technical indicators, the testing time of DC charging piles has changed from the original 246 minutes to 102 minutes (similar technology at home and abroad is 240 minutes), and the exchange charging pile has changed from 107 minutes to 28 minutes (similar technology at home and abroad is the same technology. 90 minutes), 154%more effective than traditional methods -assume 5,000 DC charging piles in Hubei Province, according to similar domestic and foreign technologies at home and abroad. Press 8 hours of working time every day. One set of equipment can only detect 2 charging piles a day, one of which can be detected. 700 units in the year, at least 7 sets of equipment are required to meet the annual cycle testing goals. After using this project detection technology, one set of equipment can detect 5 charging piles a day, and the amount of detection can be 1,700 units per year. Only 3 sets of equipment can be used to complete the cycle detection target. Scenes.

In August of this year, with the "measurement power" played in the key technologies and application projects in electric vehicle charging facilities, Li Liangbo and colleagues received the second prize of the second prize of Science and Technology Progress in Hubei Province.

(Xie Zhenyu, a correspondent of Wang Ziyi, all media reporter from Hubei Daily)

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