Chapter 2973

The sound of No. 2 Motor began to get louder, and it had a fault. This fault is multifaceted. For example, when the propeller is wound around the fishing net, it will become tighter and tighter. Finally, the motor will be overloaded. After overload, the consequences will be serious. The burning of any motor is secondary and important, which may lead to the tripping of the whole ship.

Qin Guan looked carefully. These technologies are the top priority in the all electric propulsion system. Like electric vehicles, many people think they have little technical content. Isn't it a pile of 18650 batteries? In fact, stacking batteries and how to manage these batteries are the expertise of Tesla. Outsiders can learn the fur, but they can't learn the true meaning.

Now, the same is true for medium voltage DC transmission. It is actually easy to solve with generators and motors, but what is difficult to solve is its reliability. Once problems are encountered, how to deal with them, or even the system will automatically solve these problems and improve its reliability, that is the most important.

As a power system, the short-circuit and overload protection capability of this system is the most important. If it cannot be solved in time, the whole system will be powered off at any time. After all, for insurance, there is definitely an overload protection device on the side of the generator. Once the fault point cannot be disconnected in time, the generator must be powered off.

Now, watching a motor run overload, when the drive shaft of the motor stops completely, the power will be completely converted into heat energy, which will burn all the circuits in a short time. At this time, a red alarm appears on the screen, and then, in the next second, or the next 0.1 second, the circuit of the motor will be cut off.

The system automatically determines the fault problem and then handles it. All this is done beautifully.

"Well, yes, that's our difficulty," Qin Guan said. "Our system is doing very well."

Professor Ma's face was also excited: "yes, we have been working on this aspect in recent years. The pre research has been very sufficient. We believe that there is no problem in using our 10000 ton drive in the next step."

Just after he said this, Makarov shook his head over there.

"Old horse, do you have a problem?" Qin Guan asked.

Makarov nodded. "Yes, I have a problem."

Makarov has only focused on his work since he came to the Han country. He never expressed any opinions on those irrelevant to him, but now it is different. After all, although it is used in the 10000 ton drive, it will also be used in the aircraft carrier in the future. Now the land model here performs very well, but it still can't be used directly in the 10000 ton drive.

"The land model, no matter how many situations are considered in the design, is still just an assumption. No one knows what problems will happen in real use," Makarov said "So, just after such an experiment, we need to use 10000 tons of large drives, even aircraft carriers. I think the risk is too great. After all, once there is a problem, I'm afraid there will be big trouble."

Makarov's worry is not unreasonable. After all, the experiment is always an experiment, and it is impossible to completely simulate the real situation. When it is built, there are various problems that cannot be solved. Should the warship be disassembled and replaced with an ordinary scheme? It is not much different from rebuilding a new warship.

At that time, who can bear such responsibility?

Qin Guan was filled with emotion when he heard Makarov's words. Sure enough, Jiang is still old and spicy. Makarov has built warships all his life. He pointed out this big problem and can't take risks.

Think about Niu Guoren's 45 destroyer and eagle's aircraft carrier. There are such major problems, which makes the Navy quite angry. This is only in peacetime. What if there is a war?

In the equipment of the army, it often happens that the bidding of backward technology exceeds the advanced technology. After all, the backward technology is enough, and the reliability is still very good. Take the aircraft for example, yf23 is quite advanced, far exceeding yf22. As a result, yf22 has achieved good results, and yf23 has been shelved, which is considered from the perspective of reliability.

In Qin Guan's plan, all electric propulsion must be carried out. After all, there are more and more electronic equipment on warships, and the power required by aegis warships increases exponentially. Only this all electric propulsion can reasonably distribute the power supply, which is of great benefit.

Moreover, in the future, naval guns will transition to electromagnetic guns, which also requires sufficient power supply. As for aircraft carriers, it is necessary to use electromagnetic catapults when launching and taking off. There is no need to produce a large amount of water vapor, so there is no need to worry about deck icing in cold areas. Moreover, the power of electromagnetic ejection is continuously adjustable. In the future, UAVs must use electromagnetic ejection to take off of

Electric drive is a road we must go through. Now that we have set foot, we can only go on unswervingly. So, how to solve it?

After hearing Makarov's words, Professor Ma's face was not embarrassed, but with a heroic expression: "yes, in fact, we also want to practice, but it's too expensive and it's not so easy to pass."

Even if two old marine diesel engines are used to build this land model, it will cost a lot. Millions of dollars have been spent from front to back. If the actual warship is really used to transform it, it will cost more. You know, this is a start on the power system of the warship. Cut off the transmission shaft of the warship and place the motor at the stern, At the engine, the transmission shaft comes out to receive the generator. These things are not small. At least make a big hole on the deck.

I'm afraid they have to invest tens of millions. With such a large investment, they 7712 can't do anything. Not to mention, they have to have warships.

Hearing this, Qin Guan turned to look at General Zhang and said to General Zhang, "general, our navy is rapidly entering the sequence of modernization. The previous brigades should be retiring gradually?"

Brigades must be retired. Warships relying on anti-aircraft guns for air defense have no role at all in modern wars. Even if there is a transformation plan, it is not worth the loss. After all, the navy has begun to storm troops and constantly build aegis warships. If brigades are changed again, they can't be changed to aegis warships.

General Zhang nodded, "that's right."

"In this way, the Navy will send out a retired brigade class warship in good condition, and our northern industrial company will provide funds for refitting. I will build such an experimental warship to verify the reliability of our all electric propulsion power system." after that, Qin Guan looked at Professor Ma: "is there a problem with our refitting scheme?"