Securities code: 002227 securities abbreviation: Shenzhen Auto Electric Power Plant Co.Ltd(002227) Announcement No.: 2022-012 Shenzhen Auto Electric Power Plant Co.Ltd(002227)
Announcement on obtaining the technical appraisal certificate of new products
The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.
Recently, the "DC guard power system for electric power" product technical appraisal meeting organized by China Electric Power Enterprise Federation was held in Shenzhen. The meeting conducted technical appraisal on the "DC guard power system for electric power" product developed by Shenzhen Auto Electric Power Plant Co.Ltd(002227) (hereinafter referred to as "the company"), The company recently received the new product identification certificate (zdljz [2022] No. 3) issued by China Electric Power Enterprise Federation. The details are as follows:
1、 Basic information of products
Without changing the main wiring mode and operation mode of the existing DC power supply system, the DC guard power supply system for power effectively improves the intelligence and power supply reliability of the DC power supply system by introducing the battery group management technology and the high and low voltage ride through technology of the charging module.
The successful development of DC guard power supply system for power is of great social significance to improve the reliability of DC power supply system from many angles and escort the safe operation of power system.
The main innovations are as follows:
(1) The high and low voltage ride through technology is applied to the high frequency switching rectifier module for power for the first time. The working voltage range is 20% - 130% of the rated voltage to realize the high and low voltage ride through function.
(2) The battery grouping management method is proposed, which makes the single battery in series have the ability of multi-channel redundant power supply, and improves the reliability of the whole DC power supply system.
(3) The on-line capacity verification of storage battery, group balance, health status (discharge capacity), power supply circuit connectivity and load capacity monitoring are realized, and the operation and maintenance level is improved.
2、 Appraisal opinions of the appraisal committee:
The appraisal committee said: "the key technology of the product has reached the international leading level. It is agreed that it can be put into production after passing the product technology appraisal. It is suggested to strengthen the accumulation of experience."
3、 Risk tips
The company has obtained the new product technology appraisal certificate this time. The impact on the company's operating efficiency is limited by policies, market demand, industry development and other factors, and there may be some risks. Please invest rationally and pay attention to risks.
It is hereby announced.
Shenzhen Auto Electric Power Plant Co.Ltd(002227) board of directors January 26, 2022
