National Frequency Control Equipment Standards Committee Established

From August 5th to July 7th, the establishment of the National Frequency Control Equipment Standardization Technical Committee (hereinafter referred to as "the Standardization Committee") was held in Tianjin. The meeting discussed and passed the “Constitution of the National Standardization Technical Committee of Frequency Control Equipment”, “Working Rules of the Secretariat of the National Standardization Technical Committee of Frequency Control Equipment” and the responsibility of formulating the revised standard system framework, and entrusted the Secretariat to coordinate with the relevant units to implement it. The implementation of the annual plan.

With the establishment of the standard committee and the start of related work, our country's frequency conversion equipment enterprises will end ten years of "barbaric growth" and embark on a scientific and orderly development path.

National policy is quite "This is the first and possibly the only standardization committee approved by the National Standardization Administration of the People's Republic of China (hereinafter referred to as the "GBC") in 2011, which shows that the state attaches great importance to frequency-conversion speed control technology." Inspector Deng Ruide of the National Standards Committee Said that during the “Eleventh Five-Year Plan” period, the development of national standards has achieved leaps and bounds, effectively mitigating the difficulties of the lack of standards and aging. Since 2011, the national standards project has adopted tightening and restrictive policies, shifting from focusing on standards to quality.

The frequency conversion speed control device has huge market demand and good prospects due to the remarkable power saving and environmental protection. In addition to the important deployment of the State Council to build a conservation-minded society and develop a recycling economy, formulating and promoting energy-saving standards has become an important measure to save resources and promote sustainable development.

After nearly three years of efforts by the inverter branch of the China Electrical Appliance Industry Association, the National Standards Committee issued in May of this year a comprehensive [2011] document No. 31 “Approval for the Establishment of a National Standardization Technical Committee for Frequency Control Equipment (SAC/TC 518)”. The establishment of the standard committee.

The steering committee’s business steering unit is the China Machinery Industry Federation. It is composed of a consultant and 41 members, and is mainly responsible for the national standard system revision and revision work in the field of variable frequency speed control equipment. The secretariat is affiliated with the Tianjin Institute of Electric Drive Design and the Deputy Director Zhao Xiangbin serves as the Secretary General.

Since the formulation of the six standards started in 2007, the demand for China's variable frequency speed control equipment has maintained strong growth. According to a survey conducted by 19 enterprises above designated size in the frequency converter industry, during the period from 2007 to 2010, the average annual growth rate of industrial industrial output value (current year) and industrial output value remained at 20% and 24%. Taking high-voltage frequency converters as an example, sales in 2006 were 1.02 billion yuan. Although the prices of products have been decreasing year by year, sales in 2009 reached 4.61 billion yuan.

However, with the escalation of market competition, there are more and more brands of inverters in the market and the models are becoming more and more miscellaneous, general-purpose, special-purpose, closed-loop flux control, high-performance speed sensors, and speed sensorless vector control. The models are dazzling. There are multiple versions of the inverter's name and registration category. "Companies have set their own standards, and then through the concept of speculation or marketing behavior, took the opportunity to expand into the so-called industry standards, resulting in the standard flying." A person in the industry complained.

In response to a series of outstanding technical issues, the SPC drafted a total of six project standards for general-purpose inverters, special-purpose inverters, servo systems, corresponding energy consumption standards, frequency converters, and related accessories in the draft standard system framework. For the standard committee experts to discuss.

“With the rapid development of electric drive speed control products at home and abroad, the establishment of the standard committee can comprehensively improve the quality and technical service level of inverters and electrical energy-saving products, effectively regulate the development of the industry, and provide technical support for the industry’s product quality control. At the same time, it has provided a strong guarantee for further accelerating the nationalization of major national equipment.” Zhao Xiangbin said that at present, the standard committee has already obtained four standard plan numbers approved by the National Standards Committee.

In the game, however, the implementation of relevant policies is only the first step in perfecting the frequency control standard work.

Xu Honggang, a member of the Standards Committee and a director of Shanghai Zhongjiao Shuiyun Design Research Co., Ltd., believes that standard setting is a complicated and long-term process. “In the above scope, general-purpose inverter standards are relatively easy to formulate, and special inverters are involved in a wide range of industries. Technical requirements are difficult and each company has a game of interests. Therefore, the research, development, and adjustment process may take a year or so."

In addition to solving the internal problems of the variable frequency speed control equipment industry, the Standards Committee also has to deal with a number of challenges from the outside, including properly handling the cross-range with existing standards, accurately matching the user market standards, and the technical requirements for exporting international markets. For example, the frequency converter for wind power generation equipment converter, the standard has been issued and implemented by the National Wind Machinery Standardization Technical Committee, and most of the inverter companies are not involved in the formulation; In addition, the existing IEC frequency conversion speed regulation standards are for the system Frequency conversion equipment is only part of it and it does not have independence.

In this regard, Zeng Yanhong, Director of the Standardization and Technology Evaluation Center of the China Electrical Equipment Industry Association, put together four points for the development of electrical standards in 2011 and made four suggestions to the Standardization Committee:

The first is to closely follow the adjustment of China's energy structure, focus on strategic emerging industries, and in the new energy, new materials, energy-saving and emission reduction, and high-end equipment, and other related fields, do a good job of organically matching and matching with their counterpart national and international standards, and coordinate with national environmental protection. Signs, certifications, and access requirements for international trade markets.

The second is that the formulation, revision, and optimization of standards must take into consideration forward-lookingness and guidance. At present, it is difficult to solve market demands simply by relying on national standards. Therefore, the SPC can use export standards such as the Energy Bureau and the Ministry of Industry and Information Technology to ensure the standardization and coordination of standards.

The third is to establish a new mechanism combining production, education and research, establish a standard committee as a platform, rely on scientific research institutes for scientific research, support standardization work, absorb key enterprises participating in key enterprises, and work together to develop a new mechanism for standardization and revision. . Through the guarantee of the mechanism, the strength of the dominant enterprises in participating in the standardization work was increased and the work of the standard committee was actively undertaken.

The fourth is to strengthen the sense of urgency, sense of responsibility, and service awareness. At present, there are multiple competitions in frequency conversion speed control technology standards, and the standardization committee should establish and improve a standardized technical consulting service system that uses information technology as a means and operates according to a market-based mechanism. Relying on the members of the standardization committees and relevant units, the standardized information service platform was improved to form an efficient standardization service network, and the standardization work service capacity was significantly improved.