"Enough, enough, 98kHz is fully capable of making the weight of the whole equipment meet the requirements, and we have reduced it by an additional 5kg, and the superior must be very happy to know it, which means that you can also carry a little other equipment." Pen Fun Pavilion www.biquge.info"

Huang Jie was the happiest, this time the work was done excellently, I am afraid that he will soon be able to leave this base and return to the headquarters in the capital, how can he not be happy? This place was originally just an aviation observation post.

"Impossible!" exclaimed Lezenev, "I have personally calculated that according to your discrete method, 100 kHz will be seriously overshooted, not to mention that the accuracy will not even reach five percent, how do you do it?"

Liu Chen smiled but said nothing.

Everyone looked at the somewhat crazy furry bear country expert, and felt a little sympathy for this guy.

Zhang Zheng said humorously: "Mr. Liezuo Nev, it turns out that we have really done it, maybe we Chinese people have always had the power to turn decay into magic, and the impossible has become possible, just like our Great Wall, which you can't figure out." ”

Because he is in charge of the inverter part, the people here probably know best how Liu Chen did this, although he doesn't understand it thoroughly.

"Technology is technology, there is no such thing as you, there must be a ghost in it!"

It's incredible, and Liezenev can't accept it, it's like seeing a man suddenly get pregnant, which is contrary to scientific common sense and human physiology.

Qin Ming was not very happy, and said with a cold face: "The facts are in front of you, what else can't be faked, listed as Mr. Nev, please pay attention to your words, where is your statement in the situation of our technicians who have worked hard for many days?"

Everyone agreed, and this guy's arrogance at the beginning caused everyone to be angry, and the facts were still noisy in front of them.

Lezhnev's face was red, he rushed over, pressed the switch, and the oscilloscope came out of the waveform. It was turned off and on, and the waveform came out again, the same every time, staring at Liu Chen and saying, "Do you have a DC voltage of 200kV?" ”

Huang Jie was already very unhappy. Damn, let you guide Ya not to speak, and opened a bunch of messy book lists to humiliate us, and now there is so much bullshit, I really want Ya to get out.

Liu Chen smiled: "It's okay. Plug in the ray source, let's also look at the effect. ”

Everyone knows that there is a big difference between the loaded and unloaded HVDC power supplies.

On, off.

The waveform on the oscilloscope remains the same, excitation of the rays and a beautiful brilliance.

This undoubtedly reached 200kV, and the facts are in front of you, and you can't help but believe it.

Lezuo Nev stared blankly in disbelief, cursing in his heart, how the hell did he do this. It's obviously impossible, we can't do it at such a high frequency, and the performance is still so stable and superior, what did this damn young Chinese do?

Liu Chen suddenly thought of something, and said with a smile: "Oh, I almost forgot one thing, I remember that Mr. Liezuo Nev proposed that our whole set of devices lacks a front-mounted voltage stabilizing unit, if we use photovoltaic arrays to supply power, this is a common sense mistake." ”

"That's right. You're in a lab situation right now. ”

He said subconsciously.

"So let's take a look at the most surprising performance of this device. ”

At present, the power supply of the inverter is an adjustable high-power low-voltage DC source, Liu Chen also connected the input low-voltage DC to the oscilloscope, and then smiled: "What if the input voltage is greatly adjusted?"

At this time, the ray source was still working, and Huang Jie hurriedly said: "No." ”

Input voltage variation. If the control strategy collapses, the entire equipment will burn out instantly, and the result will be unpredictable.

"Yes, little sir, we have the right weight now. Even if you add a voltage regulator unit, it's no problem. ”

Gong Shu pinched his sweat and hurriedly said.

The big guys are all on the rise, but they don't want to get rid of it all at once, so they persuade one after another.

Lezuo Nev looked at Liu Chen's hand holding the knob deadly, and suddenly rushed over, spun it vigorously, and shouted, "I want to see how surprising it is." ”

"You ......"

"Put it down. ”

It's too much.

The professors were indignant and wanted to beat up this guy.

The oscilloscope clearly shows that the input voltage is greatly transformed, varying within a few hundred volts.

Some timid old professors closed their eyes.

The expected smell of burnt and the sound of the source exploding did not appear.

The whole device is still running quietly.

The output voltage is still maintained at 200kV, and the accuracy is still 1/1000.

"How is that possible!" Lezhnev shouted in horror, grabbed Liu Chen's collar in a faux puff, and shouted, "Damn, how the hell did you do all this?"

Don't say that he doesn't want to, even the professors didn't think that what kind of control strategy this is against the sky, it is completely unreasonable.

Liu Chen's fighting skills have improved greatly, and before Liezuo Nev could understand what was going on, he broke free, straightened his clothes, and said calmly: "Heh, I told you a long time ago, there are some magical things about this discrete control method that you can't imagine. ”

Familiar professors glanced at each other, and the confusion conveyed was the same, everyone was an expert in this field, and they all understood what it meant, super robustness!

It took more than ten minutes for everyone to calm down.

Lezhnev was like a madman on the manuscript paper, he couldn't figure out what was going on, and this breath was so suffocating that he was about to die, it was like seeing his wife cuckold him with his own eyes, and his thoughts were incomprehensible.

Hahaha, the professors began to talk about the carnival, the project was completed, it was worth the trip, and everyone could write a strong stroke on their resumes.

Qin Ming and Gong Shu, two heavyweight titans, surrounded Liu Chen and praised him without hesitation.

"Little sir, what kind of advanced control strategy do you use? artificial intelligence? or fuzzy control? This is too robust, the input is so varied, and the output remains the same. ”

Liu Chen smiled and shook his head, too advanced control algorithms are not optimal, the more advanced it is, the more control is needed, and the slower the reaction speed.

There is a saying in martial arts novels, martial arts in the world, only fast is not broken.

In fact, he only used the simplest hysteresis control, which was so simple that junior high school students could understand it, but he modified the structure of the inverter, and combined it to produce such a perfect effect.

Sometimes a little mystery is needed.

"Heh, artificial intelligence has used a little, fuzzy control has also been added, and even a little bit of neuronal reflex algorithm has been borrowed. Liu Chen said.

"Oh, no wonder it's so powerful, I've never seen such a robust control strategy. Professor Hua said with a smile.

"It's not easy to know so much advanced knowledge at a young age. ”

Everyone sincerely admires that the country can produce such a wicked young man.

Liu Chen just smiled and said nothing. (To be continued.) )