"Yes..." Schroeder scratched his head hard, but he couldn't help but be curious, "Maybe I can't explain it a little..."

Zhang Yifu sighed, and after seeing Chang Jiang and Chen Yanrui, he said, "Then I will give the most basic explanation. In fact, this explanation has revealed our key technology. Schroeder, I explained it entirely for you."

Zhang Yifu said and photographed Schroeder, which made him feel a little embarrassed: "Actually, it's not necessary..."

Zhang Yifu quickly said: "We have a special method to directly and instantly determine whether the fault point is within the protection range and eliminate the influence of transition resistance, branch coefficient, etc.."

"Oh!!" Schroeder's eyes lit up. He was a professional and immediately had many associations.

The fault is transmitted to the microcomputer protection device along the line by a sudden change in current and voltage.

So is there something among these electrical quantity parameters, whether a subtle parameter can express the fault point within the range, and is there a way to resolve the fault without a large amount of logical calculation and time sampling?

In traditional microcomputer protection, it is necessary to sample a sufficiently long period of time and analyze enough electrical quantity to determine the fault. This is also the biggest difficulty in limiting the response time of microcomputer protection.

The standard has been increased from 20ms to 30ms, which seems to be only 10 milliseconds, but every millisecond is shortened by tremendous efforts. Hengdian seems to have bypassed these efforts and captured a unique and interesting way.

It must be yes, electricity propagates at the speed of light. If there are one or several parameters that can accurately judge the fault distance, protection can definitely be captured at the first time, without sampling the power frequency for half a cycle, only a small feature is required. Constant electricity must have mastered such techniques and algorithms... Only in this way can the current results be explained.

But after exhausting his thoughts, he still couldn't imagine what kind of characteristic parameters there are in the electrical quantity inside and outside the line. Can it be judged by both ends of the communication? It must not reach 20ms action. Besides, this top-notch test is only a single-ended and there is no communication channel set up...

But what kind of technology is this? It can improve protection speed and selectivity at the same time!

Schroeder's eyes suddenly lit up. He opened his mouth and wanted to pop out a professional noun, but he still held it back. Seeing this, Zhang Yifu just smiled slightly: "You should guess it right, let's talk after the experiment."

Schroeder nodded excitedly: "I never thought! I never thought that it was the Chinese who improved this technology!"

At this moment, the reviewers, including Hu Haitao, were all excited. What they could not imagine actually happened?! Hengdian's product level is really higher than Mitsubishi?! Foreign masters are kneeling down!

Experts were present to confirm this, which was so exciting.

Everyone suppressed their excitement and began to conduct more high-standard tests, and more severe faults outside the district and inside the district. Adjacent lines failed one after another, and failed during the oscillation process. Three items were in a row, and Okamoto's face almost turned into dark purple. The continuous pursuit of excellence he firmly believed was almost destroyed. Faced with all kinds of extreme, complex and unexpected situations, Changdian's response was always so accurate and fast, like a god's help. Although Mitsubishi did a good job, it was almost the highest point of the existing technology level. But in the face of an unexplained future warrior, he could only bow his head.

Faced with this result, Schroeder's expression became more and more excited. These complex and extreme situations cannot be accurately solved by the current molding algorithms. It must be that Zhang Yifu must have crossed that deep trench!

Although Thomas is not a professional microcomputer protection company, he has been working in power systems for many years and finally has some understanding. When the experiment was almost over, he photographed Zhang Yifu in embarrassment: "Can you explain it a little, otherwise this guy will be troubled for several years."

Zhang Yifu smiled awkwardly. Looking at Schroeder's eyes and Okamoto's curse, he still said: "China is very big. Typhoons in the south land and thunderstorm seasons in the north will encounter continuous faults and trips on multiple lines, so the issues we consider will be more complicated. I have to say that our power grid is much weaker than virtue at this stage. In our words, poor children are early to become home."

The poor children were already in their family... It was obviously impossible to satisfy them by saying this, so Zhang Yifu had to reveal a little bit: "First of all, we used cosine algorithms and improved half-wave Fu algorithms in many places, which eliminated many original problems."

"Cosine algorithm? How did it be implemented?" Schroeder's eyes lit up. "How did Fourier algorithm overcome the filter shortcomings? In addition, can these two items be used alone to overcome such a series of difficulties? The most critical technology is not here, right?"

"Hey..." Thomas coughed, "It's impolite to ask this."

"Ao..." Schroeder scratched his head anxiously, "This is amazing... I can only say now that I hope 866a will be certified as soon as possible so that more people can know this product. Zhang Yifu should indeed share and exchange some technical details. This is a matter for the entire industry!"

"Finally..." Schroeder looked at Okamoto and shook his head firmly, "Your previous words were really slander. Hengdian did not need to learn from any point of any product. At least this 866a is already at the level of the next generation of products."

Okamoto waited in front of the gallows for a long time and finally ushered in the last moment of decay. He looked at Schroeder blankly. In his heart, there were tens of thousands of evaluation teams who did not believe in China, but what he said from the German IEC professional committee member was enough to shock him.

Odagiri quickly blocked Okamoto, who didn't know how to express it, and smiled awkwardly: "Sorry, sorry..."

Zhang Yifu squinted his eyes and snorted, and had already seen through Oda Choi's face: "Don't always be sorry. Can you write a letter of apologies publicly to tell the world and express your apology?"

"I have to ask the head office for this..." Oda Chee still looked like he was not painful or itchy. It was translated as if it was impossible.

"Look, you were so resolute and quick when you sent a notice to slander us. When you asked you to admit your mistakes and take them back, you were so delayed." Zhang Yifu had no intention of arguing with Oda Chee again, so he simply grabbed Schroeder: "If you need it, there is no problem for me to communicate some technologies. But before that, can IEC help clarify and introduce our products, and publicly officially stated that it is ahead of Mitsubishi, without any reference."

"This is not a problem at all, and Thomas witnessed this together." Schroeder excitedly held Zhang Yifu's hand, "I will do this when I go back. I also ask you to accept the invitation from our meeting later and share it a little. I think everyone will be very happy. As you said, the power grids in Europe and the United States are very powerful, which also makes us ignore the development of relay protection to a certain extent. The struggle and struggle made by Chinese colleagues on the current situation of the power grid are very admirable!"

"No problem." Zhang Yifu and Schroeder hit it off and each got what they needed. IEC issued a statement of 0 cost. In order to gain this reputation, Zhang Yifu naturally had to reveal a little bit of technology, which was worth it.

Schroeder's attitude has revealed everything, and Hu Haitao, Chen Yanrui, Chang Jiang and others are even more excited.

They have never compared this before, and they have no confidence and capital at all.

Now that Mitsubishi has been framed out of nothing, it is a coincidence. I didn’t expect the gap to be so big! Instead, we are so much ahead!

Hu Haitao is the happiest one. In this way, it will be too natural for the Academy of Electrical Sciences to test imported products in the future. Our technology has begun to lead. If you want to come to our place, we must make us nod!

The over-standard test came to an end here, and no one cared about the rest of the final test. In the end, Schroeder and Thomas signed the letter without even reading it.

At the final analysis meeting, Okamoto had left the market first regardless of the minimum politeness, leaving only Oda Kei here to make a soy sauce. The entire analysis meeting was almost praised. IEC experts lamented the breakthrough technology of China's microcomputer protection, and hoped that China would also participate in international microcomputer protection exchanges. After they returned, they had too much work to do and too much information to share.

When the news reached the Hang Electrical Laboratory, the engineers were also shocked.

Experts personally excitedly confirmed that Hengdian's microcomputer protection products are super-level, Mitsubishi is only first-class, and Hengdian is already first-class.

Although this is just a small product in the industry of microcomputer protection, the results are also exciting enough. After all, they personally experienced it and created a small daily daily catching up with the Premier League and the United States.

This is a small step, and this is also a big step!

The automation project is still in full swing. But now, engineers' eyes are full of something called confidence, and any skepticism is dispersed, just seeking to win the bid for the house!

At the dinner, Oda Kei simply left. Zhang Yifu, Hu Haitao and others talked about the prospects of the world power industry with two IEC experts. The two lamented the speed of China's power technology development. Now, even in the International Power Grid Conference, the Chinese National Committee has already played an important role. Once the results of microcomputer protection are released, it will inevitably cause a sensation.

But no matter how much he talks, Schroeder always holds up a question in his mind and wants to get an answer from Zhang Yifu.

Taking advantage of the other people's toast and chatting, Schroeder grabbed Zhang Yifu and cast a serious inquiring look.

Zhang Yifu was also unavoidable and sighed.

With four eyes facing each other, the two said the same words.
Chapter completed!