Chapter 251: This is not scientific

A wire drawn from a device that simulates a turbojet engine driving a generator to generate electricity connects the current to the rectifier circuit.

The original thyristor rectifier circuit is a rather complex and bulky set of equipment to achieve this performance. Compared with IGCT, the gap between the two is even greater than the gap between the original World War II Motorola radio station and the current smartphone.

Not only is the equipment complex and the functions are simple, but the energy consumption of the thyristor rectification itself is very large. This is undoubtedly even worse for aircraft systems, which are already short of electricity.

President Luan of Dongda, Director Gu of the 601 Institute, Liang Hongwei, a structural engineer, Secretary Lu and Ran Ni, and Rosie personally adjusted the oscilloscope, and everyone swallowed their saliva unconsciously and stared at the screen intently.

The time that passed by the current was only a moment when it was too late to count, but it was as if everyone had been waiting for a long time.

The violent and turbulent current flows from the power supply equipment into the IGCT, as if the flood water has hit the Three Gorges Dam and fallen under the power of human technology.

The oscilloscope's screen first jumped inexplicably, but then a regular, and extremely beautiful curve was displayed.

"This ......"

"Is this a success?"

Although Secretary Lu is not very good at technology, he accompanied the leader from the power system, and he was not so bad that he couldn't even understand the oscilloscope.

The curves that fluctuate regularly on the screen are clearly the energy that can enter other electronic circuit devices after rectification. It doesn't require much knowledge, even if it's just industry knowledge. You can judge the results.

Principal Luan of the University of Tokyo frowned. He nodded hesitantly.

"This. It should have been a success. ”

He said with some hesitation: "It's not sure yet, you have to go through an inspection to know." ”

In recent years, the social atmosphere has been bad, which has affected the academic community. Principal Luan has seen a lot of things about studying magic and metaphysics on weekdays, and making temporary guest appearances as scientists.

In the face of scientific research results that he can't understand, he always subconsciously blesses a certain skepticism.

And although the power rectification is not the direction that "liars" like to pile up, but if you can't figure it out, some people want to go sideways?

What's more, the originally huge thyristor rectifier equipment suddenly shrank almost ten times in size. This is a bit too sci-fi no matter how you look at it.

Unlike Secretary Lu and Principal Luan's caution, Ran Ni and Rosie have no doubts. After the two of them repeatedly confirmed that the images and wiring on the oscilloscope were correctly connected, although they were also in disbelief, they still cheered excitedly.

"It worked!"

"Oh my God, it worked!"

"How did you do it......"

Rosie even rubbed his eyes and muttered to himself, as if he was asking himself and Hu Wenhai.

Structural engineer Liang Hongwei and Director Gu looked at each other, both of them saw incredible looks in each other's eyes.

"It's not scientific!"

From Liang Hongwei's face, Director Gu saw such a picture. The expression that almost didn't come out of the shout.

This is just so unscientific!

Scientific progress should be gradual!

How can you make leaps and bounds so easily?

More than 20 people were locked up in the conference room for three days to draw drawings. A week of tape-out lithography packaging, and what comes out can replace the thyristor rectification.

If he hadn't seen it with his own eyes, Liang Hongwei would definitely think that this person was "", and it was as unserious as God saying "there must be light, so there will be light......

And Director Gu's eyes were scorching.

No one knows better than him what IGCT means for aircraft design.

Among the various equipment of the fighter, there is no doubt that the rectifier equipment occupies a considerable weight. The output of power generation should be rectified, the power supply should be rectified, and the electrical equipment should be rectified.

Radar should be rectified, avionics should be rectified, and flight control should be rectified. It can be said that except for the propulsion power of the aircraft, which is fuel-powered, all other equipment relies on electricity.

If IGCT could replace all thyristor rectifier equipment, the most sensitive weight for fighter jets would certainly be greatly reduced!

This is undoubtedly a great improvement in the performance of the aircraft. Not only is the weight reduced, but also the reliability of the fighter is improved due to the reduced energy consumption during the rectification process, and the power supply status of the whole aircraft is improved.

For military weapons, the increase in performance is even second to reliability.

It is conceivable what IGCT technology means to Director Gu, who has been engaged in fighter research all his life.

The experimental equipment was connected for a long time, and it seemed that it didn't take long, and the whole laboratory was silent.

It wasn't until Hu Wenhai coughed slightly that everyone "woke up".

The first to speak out was Secretary Lu, who was not very sensitive to technology. He glanced at Principal Luan, then nodded, and said to Hu Wenhai: "Principal Luan, how to check this, you want to have a charter, right?"

"Oh, it's simple, too. Principal Luan thought for a while and said, "If Director Gu confirms that there is no problem with the equipment here, he will be able to know the results by conducting a few small tests." ”

"Of course there is no problem. "Director Gu and Principal Luan also have a relationship, and the character and character of both parties are guaranteed.

With Director Gu's words, Principal Luan was relieved.

"Let's get started. ”

Secretary Lu looked at Hu Wenhai, Hu Wenhai smiled, and confidently turned sideways to let the test bench out.

"This old Gu, let's take a hand, shall we?"

"Good!"

Director Gu also knew that it was probably because Luan Zhenzhang didn't trust Hu Wenhai's side very much, so he personally rolled up his arms and sleeves and prepared to go into battle.

As Luan Zhenzhang said, the effect of the whole experimental IGCT is very clear. What needs to be verified is the authenticity of the whole experiment.

First, make sure that the device that outputs the current is working properly and that the output mode is the same as the experimental setting. Then check the circuitry around the IGCT to make sure that no other equipment is involved in the rectification, and finally check that the inspection equipment is functioning properly. Ensure that the experimental data is true and valid.

IGCT looked like a high-tech thing in the eighties. But the future is just the basics of power electronics. The determination of the rectifier function could not be more complicated.

Without going into principle, the whole inspection is very quick.

It didn't take long for Luan Zhenzhang and Director Gu to look at each other and nodded in unison.

At this point, it also means that the function of IGCT is confirmed to be real and effective.

"I mean, I'm not dreaming, am I?"

As a scholar with a background in the power system, Luan Zhenzhang is well aware of the role of thyristors in the power system. Arguably. Without thyristors, the entire modern power grid would not exist.

In the entire human society, there are many places that need to be rectified, and it is simply impossible to count.

The technological progress and competitiveness of IGCT is obviously far superior to that of the original thyristor.

This kind of technology is really no different from dreaming. If it was before today, if it wasn't for Secretary Lu's personal invitation, he would definitely spit on the person who boasted about this kind of Haikou, and then treat it as a swagger and send it to the Public Security Bureau.

Smack-

Director Gu slapped Luan Zhenzhang's buttocks. The vice president of Tokyo University almost didn't jump. looked ignorant: "Old Gu, why are you beating me?"

"Does it hurt?"

"Nonsense!"

"Oh, I feel like a dream, too. Director Gu nodded seriously: "So try to see if it hurts to be beaten." ”

"Why don't you try it yourself!"

Principal Luan's ass was crooked.

"So, this technology is real?" Secretary Lu interrupted the trend of two "old and unrepaired" squirting, and asked quickly.

"This, Principal Luan, come on, after all, it's your old job. ”

"Okay, then I'll talk about it. Luan Zhenzhang nodded and said, "Judging from the preliminary examination, this IGCT technology is indeed effective. It is not only effective, it can be said to be an epoch-making technological progress! In terms of volume, heat dissipation, and gate-level conversion speed alone, it is not too much to completely surpass the existing thyristor technology, and even to be completely ahead of the world's existing level. ”

"So good? Does that mean it can completely replace existing thyristor technology?"

"More than that!"

Luan Zhenzhang said solemnly: "This technology can not only completely replace thyristor technology, but also many requirements that could not be realized in the past because of the technical limitations of thyristors, after IGCT, also have an achievable basis!

"Phew—I see. Secretary Lu memorized almost every word that Principal Luan said in his mind.

"Next, I also asked Principal Luan to sort out a report, and I will take it away. ”

"No problem. Principal Luan was not only not afraid to take responsibility, but even a little eager to try. This kind of opportunity, which is almost certain to make a name in the history of electricity, is not available to everyone.

"Mr. Hu, what about us? Are we revising the electronic system according to the standards of IGCT technology?"

Rosie and Ranni are eager to try, after replacing the IGCT, the design difficulty of the entire power electronics system can be said to have plummeted, and many nerve-wracking problems can now be "squandered" on the technical indicators.

"According to the standards of the IGCT, let's revise it. Hu Wenhai nodded confidently.

"Who's that, Xiao Liang!"

"Almost" everyone was elated, but almost.

Director Gu's face was full of red light, and he was inexplicably excited when he thought of the prospect of IGCT technology being applied to other aircraft. He beckoned, and Liang Hongwei, a structural engineer, beckoned over.

"You too, according to the standards of IGCT technology, recalculate the structure of the needle-eye drone. ”

"Huh?"

Unlike the revision of the power electronic system, because the weight of the front half of the drone is greatly reduced, it means that the center of gravity of the whole machine is adjusted, and the entire structure has to be redesigned.

This is really a day, Liang Hongwei thinks of the workload here, and feels like his eggs are going to break......

Chapter 252 Secretary Lu didn't have a deep understanding of technology, so after entrusting Principal Luan to ask him to make a detailed report, he withdrew first.

He is still a little idle in Shengjing, and the chief's secretary is the chief's banner, and sometimes he is quite involuntary. Now that it is on the ground of Shengjing. Some courtesy visits are always indispensable.

In addition, the feasibility of IGCT technology was confirmed. This is more or less a phased achievement. He still has to report to the higher authorities in time.

Hu Wenhai's verification only proves that the rectification function of thyristors can be realized on devices with smaller size and power consumption. But just such a conclusion is not enough, and the report submitted to the leader behind Secretary Lu obviously cannot have only one sentence.

For a new technology, it is normal for the technology holder to apply for technical appraisal. Then the relevant state departments organized experts from the same industry to get together for a meeting to see if the technology met the claimed standards.

Such a set of formalities down. It is often protracted and exhausting for applicants.

And even if it passes the technical appraisal, most of the Chinese technology in these years has been shelved and become the so-called "technical reserve".

And the developers of technology, with good luck, scientific research results become the achievements of continued promotion. If you're unlucky, maybe even a month's bonus will be gone.

"What kind of IGCT is this, let's take it to our laboratory at the University of Tokyo?" President Luan smiled, thought for a while and said, "Regarding power engineering, we also have laboratories in the University of Tokyo, and the equipment and technical level are quite good. Measurement and validation of specific data. Results can be given very quickly. ”

He now wants to understand the principles of IGCT and have the opportunity to study it directly up close. It's definitely going to be exciting.

However, when Luan Zhenzhang reached for the IGCT circuit board, he didn't want his hand to be held down by Hu Wenhai.

"This IGCT circuit board can't leave the 601 Institute. Hu Wenhai said very firmly: "At least I want to ask, President Luan, what is the level of the secret level of your Dongda laboratory, and are the staff reliable?"

"What does Comrade Hu mean by this?"

President Luan was stunned, the laboratory of Dongda Electric Power Engineering is a provincial-level laboratory, which is very good in the province. But at the national level, it is the role of the second echelon.

Of course, there is no high level of secrecy in such a laboratory, and the staff obviously will not have a special political review, and the background is completely clean.

This is different from the 601 Institute, as the highest institute for China's fighter design, the 601 Institute is a dog that is "rooted in the seedlings", "red and specialized", the personnel confidentiality level is very high, and the confidentiality system is also very perfect.

601 is definitely stronger than 611 at least in this respect, except for the leak of secrets, there has never been a wall-climbing party in the vicinity of Shengjing 601. As for the 611 wall climbers, they will soon become a local industry in 30 years.

A technical secret placed in the 601 Institute can still be called a secret. But when put into the open laboratories of public universities, the Eight Achievements can only be turned into honey technology - specially designed to attract bees and butterflies.

Hu Wenhai didn't dare to gamble that the laboratory of Dongda would not leak the news of this technology, or even simply provoke commercial espionage.

Isn't IGCT technology powerful? Is it easy to use? But this does not mean how difficult it is to produce, but purely a matter of thinking.

This thing can be made with the technology of China in the 80s, as for the United States, the Soviet Union, Japan, Germany, France, Britain, Italy, and the Netherlands......

Countries with higher chip manufacturing technology than China in this era can be said to be like a carp crossing the river.

Without getting the real thing, scientists in these countries may be able to open up this idea even if they listen to two principles.

Therefore, unlike lithium battery technology, IGCT technology must be tightly hidden before it is ready.

It is precisely for this reason that Hu Wenhai will never agree to take the IGCT circuit board to the Dongda laboratory for testing.

"I mean, if Principal Luan wants to conduct an in-depth test of IGCT technology, he can only do it in 601 schools. It's not that I don't believe in Todai, but IGCT technology is very important and we can't face the risk of leaks. ”

Hu Wenhai said this, Luan Zhenzhang looked at Director Gu, who nodded silently.

Standing in the position of Director Gu, out of the tradition of China's military industry, there is an impulse to keep any information secret. After the use of IGCT technology, whether the combat effectiveness of the fighter can be further improved and to what level is very necessary for secrecy.

Of course, just like the use of IGCT technology in needle-eye drones, major structural surgery is required. If the J-8 or J-8 II wants to go to IGCT, it requires more preparation.

"Does the 601 have all the equipment that can be used for testing?" Luan Zhenzhang turned to Director Gu and asked.

"This. We're not a professional power electronics lab. Director Gu spread his hands. There is no electronic power test equipment in the aircraft design institute. He can't be blamed for that.

Even with such equipment, Director Gu didn't dare to come out of the way. Obviously, the water inside is deep, and our research institute of the Ministry of Aviation Industry cannot afford to wade into the troubled waters of the Ministry of Electric Power Industry. If there is a problem behind the test results, you can't be bitten by someone from the Ministry of Electric Power Industry......

"What is going to be done?" the chief is still waiting for my report. Luan Zhenzhang scratched his ears and cheeks anxiously, as if he saw the Monkey King of Peach.

His eyes suddenly lit up, and he said, "If I borrow the site of 601, the equipment can be moved from Dongda." Fellow: I can also arrange for politically reliable people. ”

Northeastern University was one of the best schools in the Northeast in the 80s, and it was no problem to find a few politically reliable researchers.

"Wouldn't this be too troublesome?" Director Gu was a little moved, and it was his responsibility to take out the 601 and put it on his own turf for testing, and the 601 would be able to know the result as soon as possible.

"It's not a big problem. Luan Zhenzhang is a little confident: "The test is not complicated from the project, as long as there is a certain amount of basic equipment, it is enough." ”

"That's good. Director Gu nodded: "I'll arrange the venue, as soon as the equipment and personnel come over, you can start testing immediately." ”

Director Gu himself is also hot, hoping that IGCT technology can really pass the test.

"Comrade Xiaohu, this is always okay, right?" Luan Zhenzhang did not forget who had the final say here. Turning his head to confirm Hu Wenhai's attitude.

Hu Wenhai looked at the eager expressions of Luan Zhenzhang and Director Gu, so he had to smile bitterly and nodded.

This time, Luan Zhenzhang reached for the IGCT circuit board. Hu Wenhai finally stopped stopping him.

I saw Luan Zhenzhang as if holding the emperor's crown, carefully removing the IGCT circuit board from the experimental table, and then carefully examining its appearance.

"If it can really replace thyristor rectifier circuits......"

Luan Zhenzhang estimated in his heart that just the demand of the power sector could be said to be endless. As for the other possible directions of its application, he was too confused to think about it at all.

Even if it is the crown of Emperor Laozi, counting the GDP of the feudal empire of any ancient dynasty, I am afraid that it really cannot be compared with the meaning represented by this circuit board.

The interests represented behind this circuit board are truly rich and rival countries.

For example, the Americans have long had plans to launch all-electric propulsion warships and tanks, but no actual products have ever been produced. Why? It just can't be solved in power semiconductor technology. The switching frequency of the thyristor is too low!

The switching frequency is low, the filter circuit is larger, and the thyristor-related circuit is more complex. IGCT solves the problem with one tube, and the thyristor needs two or three times as many units to solve.

And even if the thyristor struggles with the overlord to get on the bow, the all-electric efficiency makes people cover their faces. The efficiency of the all-electric drive is on par with that of traditional mechanical-hydraulic transmission. With IGCT, the all-electric transmission efficiency can be increased by 20% compared to the traditional mechanical hydraulic transmission!

If Americans knew that there was such a thing as IGCT --

Dear, do you remember the last Iraq that was fooled and lame by Mr. Hu?

"Alright, let's hurry up and get to work. Luan Zhenzhang said excitedly to Director Gu: "I won't go back to Dongda, find me a phone, I'll call and arrange for someone to send the experimental equipment over." ”

"That's easy to say, you use the phone in my office!" Director Gu stared at the circuit board in Luan Zhenzhang's hand, as if he was afraid that he would walk unsteadily and was ready to rescue him at any time.

"Director Gu and Principal Luan, in order to avoid suspicion, I won't participate in the next test. ”

Hu Wenhai coughed, looked at Director Gu and said, "If there is no problem, I plan to continue the needle-eye drone project." ”

"Oh, of course no problem. Director Gu and Luan Zhenzhang touched their heads, and while studying the IGCT circuit board, they said: "Comrade Xiaohu has any other requirements, you can just tell me." It's just that we took this circuit board, and it won't affect the development of drones, right?"

Hu Wenhai waved his hand absently, and then lifted the cardboard box on the ground to the test bench.

Brush -

As soon as his hand pulled outward, a stack of packaged IGCT boards was pulled out.

He patted the thick stack of IGCT circuit boards, and showed eight snow-white teeth with a standard smile: "Director Gu, don't worry, I have enough IGCT circuit boards here." ”

Of course, Director Gu had heard of Hu Wenhai's deeds, and of course he knew his ability to read "business transactions" and write "extortion".

Otherwise, the poor and crazy 601 would not have been able to leave the Ministry of Aviation Engineering and turn his head to Hu Wenhai as a thigh pendant.

casually thought about how much benefit these IGCT boards could be exchanged for in his hands if they could be sold to the Americans.

Even with Director Gu's "pure" and "barren" imagination in this regard, he knows that this must be a very large number.

Seeing Hu Wenhai casually patting the box a few times, Director Gu and Luan Zhenzhang felt that their hearts were jumping...... (To be continued.) )

PS: Let me tell you a bad joke: 66 years after the founding of the People's Republic of China, the Army of the Chinese People's Liberation Army was finally established!

-- In fact, the leading body of the army was established, and our navy and air force are finally no longer the army navy and the army air force!

by Northern Dynasty