"It's really a traveling wave!" Schroeder clenched his fists excitedly, "This theory has been put forward a long time ago, but there are too many shortcomings, and it has not been put into application, and the difficulties of accuracy, sensitivity, and waveform correlation have you solved?"

"I don't dare to say that it will be solved, but I can only say that it is basic. Zhang Yifu sighed, "We have put a lot of effort into mathematics, in fact, we use the results of mathematics in recent years, not computer science, of course, the upgrading of some related components is also essential." ”

"Yes, yes, in science, sometimes all fields go hand in hand, sometimes one trades off, and a breakthrough in one field may just solve a key technical problem in another field. Schroeder was gearing up, "If you use a traveling wave, everything can be explained." The traditional algorithm needs a long enough sampling time and then analyzes each electrical quantity for calculation, but the traveling wave is not so complicated, and the wave head of the traveling wave has a unique feature, as long as this feature is captured, it can be calculated and judged immediately. ”

Schroeder said well, the traditional way is like an old Chinese medicine doctor, while checking the pulse, asking for a diagnosis, synthesizing a variety of information to tell the patient, where is the problem with your heart, liver, kidney and spleen, and then prescribe the right medicine. Western medicine does not care about 3721, X-ray, the original shape of the five internal organs is exposed, and the lesion is directly medicated. Xingbo is so unreasonable, it only needs an X-ray to find an anomaly and take it down.

Of course, from the perspective of science and technology, it cannot be explained by such vague terms as "taking the pulse" and "X-ray", if it has to be said, the characteristics captured by the traveling wave algorithm are more interesting, it looks at and analyzes the changes in the laws of the wave, and once these changes meet certain conditions, they will move.

This principle is not complicated, it was proposed as early as 40 years ago. There have always been people who have the idea of making waves. However, there are always several fatal shortcomings in the traveling-wave ranging distance protection, which will seriously affect the accuracy of judgment, and it is difficult to obtain satisfactory results in the test.

Once these points are overcome, the advantages of traveling wave distance protection will be extremely obvious.

Zhang Yifu did not fool Schneider, this overcoming is really not in the field of computer or electromagnetism, but in mathematics.

Wavelet transform. It doesn't sound like such an esoteric thing, but this transformation analysis algorithm that has emerged in recent years can be fully applied in traveling wave distance protection.

In fact, in the application fields of signal analysis and image processing, wavelet analysis has shined, but the field of microcomputer protection is too biased, and the most professional and top talents in the world are not concentrated here, so I did not expect to use such outstanding mathematical tools.

It has to be said that in the reality of the previous life, it was indeed the Chinese who made a breakthrough in this regard. China's microcomputer protection has indeed made leaps and bounds of progress because of this, whether it is traveling wave or wavelet transform, it is a long and arduous process from learning to research, and finally putting it into application.

"Stand on the shoulders of giants. Zhang Yifu smiled and told Schroeder what he had said countless times. Most of the time, everyone will think that he is humble, only he knows how sincere he is, "Let me apologize, we are all together after all." I don't have the courage to say too much. ”

"Understand, understand. Schroeder nodded. "This is exciting enough, it is conceivable that the future trend is to put traveling wave technology into application, microcomputer protection to a new level, come, cheers!"

"Cheers!"

After touching the glass. Schroeder asked, "So can I publish this information? Just announce that 866A uses a traveling wave algorithm, and that's it." ”

"Absolutely. Zhang Yifu smiled evilly and said, "It's EPR-866A, it's better to mention Hengdian again." ”

"Haha!"

The review ended perfectly, and all the rumors were self-defeating. Schroeder returned home the next day. The original intention was to make a soy sauce, but I didn't expect to harvest such a big result. Thomas, however, stayed a few more days and bought a ticket to the rest of China, and Zhang Yifu introduced some people to him to see if he could find value.

A few days later, the IEC issued a statement letter to clarify the previous doubts, and the EPR-866A uses traveling-wave technology, which is completely ahead of Mitsubishi's line protection in the test. The traveling wave technology is placed here, and there must be no plagiarism, everything is nothing.

Mitsubishi lifted a stone and shot himself in the foot.

Just when Mitsubishi was still immersed in pain, the Ministry of Electric Power had issued a regulation that all imported relay products, like domestic products, must be sent to the Electric Power Research Institute for testing, and can only be used in China's power grid after passing the test. Note that the testing standard is not an IEC international standard, but a Chinese standard. In addition, the first batch of inspection lists was announced, and only one model, 866A, was announced. Even if the product has been put into production, it must be submitted for inspection in time in the bidding or introduction process, otherwise it shall not be put into production.

It was Okamoto who blew it up before, and as soon as the news came, Oda Kiri also blew up.

Mitsubishi microcomputer protection, there are still some markets in China, after all, after so many years of hard work, or won orders from some provinces, cities and regions, in cooperation, just signed, not yet put into production, there is really such a batch, more than 100 units. Considering the huge profits of microcomputer protection, this has directly affected Mitsubishi's sales of tens of millions in the Chinese market, and now this part of the cooperation has been stopped, and the Chinese user unit urges Mitsubishi to send it for inspection

After getting China's new standard, Okamoto and Oda Kiri began to bomb again, and the damn new standard has similarities with the IEC super-standard in many places, and put forward a lot of requirements that they had not considered before, as the so-called poor children are in charge of the house early, and they can fight when they go out, and they can cook when they go home. All imported products, including Mitsubishi, are optimistic about the power grid and cannot meet these special requirements of China.

Okamoto had just been hit hard and faced with a series of technological improvements that would be almost impossible in a limited time, and it would not be long before he would have to go with Fukuoka.

This is really stealing chickens and rice.

Things are relative, after the new standard was issued, many places had to face the possibility of dismounting the protection, and if they used microcomputer protection, Hengdian became the only choice, because the gringos did not consider China's new standards at all. Soon some units began to contact the North China Bureau to inquire about the application situation, Hu Lingling Lu Tao is naturally 10,000 good, more comfortable than imported products, Hengdian should also be approached by business.

It's just that now, Hengdian has more important tasks, and these businesses will be carried out after the Spring Festival. (To be continued......)