A big country of aerospace with black technology

"How efficient a power-generating satellite is depends largely on the accuracy of your control system."

Before the launch of the experimental power generation satellite, Zhang Xingyang asked Qin Ming:

"How about it, are you confident?"

The power generation satellite in this experiment uses the latest flexible solar panels to generate electricity.

While generating electricity, the electric energy passes through the high-power wireless transmission output end.

Convert to directional microwave

Output to the Tiangong-1 space station.

The microwave is then converted into electrical energy through the receiving end device.

Wireless power transmission, to be precise, should be wireless transmission of microwaves.

Electrical energy does not travel wirelessly.

Instead, it is converted into another form, in the form of another wave.

Complete transfer.

Microwave power transmission also has some disadvantages.

“Of course we are confident that our intelligent control system can ensure the lighting surface of all power generation panels.

24 hours a day without interruption, receiving light. "

Qin Ming raised his eyebrows and said.

The space environment, compared to the terrestrial environment.

The biggest advantage is.

Power generation time.

In space, the power generation time is precisely controlled and can reach 24 hours.

This is something that neither ground power generation nor even high-altitude power generation can achieve.

Nearly twice the power generation time.

What it brings is twice the power generation.

"Nowadays, space power generation is a big problem."

After Qin Ming spoke confidently, he talked about the current shortcomings.

"Actually, it still lies in the directional transmission of microwaves."

Microwaves will escape in space.

It cannot propagate completely directionally like laser.

Zhang Xingyang has put a lot of effort into this aspect.

"Our current technological level is the limit of what we can do."

Zhang Xingyang smiled and said.

In fact, there is currently a problem with the emission of microwaves in wireless power transmission.

Already better than Zhang Xingyang predicted at the beginning.

Much better.

The most intuitive expression is.

In a vacuum environment, the wireless power transmission loss rate is less than 12%.

This is already a fairly low attrition rate.

Even taking into account that transmitting electricity from space to the ground will increase losses due to atmospheric problems.

But the loss rate will not exceed 20%.

You know, the loss of general high-voltage transmission lines is about 13%.

The transmission loss rate of 800 kV UHV is much lower, about 7%.

However, considering the actual power generation capacity of space power stations, it is more than twice that of terrestrial solar power stations.

And consider the stability of power generation.

In fact, space power stations have higher power transmission efficiency.

The actual loss is about seven percent.

"If we want to further improve wireless power transmission efficiency, we will have to further develop our semiconductors."

Zhang Xingyang said immediately.

"Our current gallium arsenide semiconductors can only do this."

The development of the third-generation semiconductor industry in China is much faster than that in other countries in the world.

This is due to the huge domestic raw material production capacity.

It can support research expenditure in various directions.

At present, the domestic third-generation semiconductor raw material market accounts for more than 90%.

"According to the scheduled plan, our power generation satellite will be launched in three days."

Qin Ming did not continue to discuss the development of semiconductors with Zhang Xingyang in depth.

Instead, he turned to the specific issues of power generation satellites.

"Four days from now, the first space wireless power transmission experiment will be conducted."

After Qin Ming finished speaking, he looked at Zhang Xingyang expectantly:

"Will you come then?"

Zhang Xingyang has been busy dealing with various international forces recently.

There is very little time to actually manage a space mission.

That's why Qin Ming asked such a question.

"I will participate. Power generation satellites are related to our future energy industry issues."

Zhang Xingyang said with a smile:

"How could I miss this good time?"

For the space power station project, Zhang Xingyang made countless preparations.

Previous high-altitude solar drones and third-generation semiconductors were all for it.

Even in order to be able to successfully implement super large space power stations.

Some tough measures were also used.

Now that it was time to see results, how could he miss it.

——

It was a quieter autumn night.

The huge heavy-lift launch vehicle stood quietly on the launch tower.

This isn't just the first liftoff of a power satellite.

It is also the first launch mission of a heavy-lift launch vehicle.

Power satellites have extremely heavy weight, and only heavy-lift launch vehicles can carry this big thing into the sky.

The power satellite itself weighs up to forty-five tons.

Plus a huge number of foldable flexible solar panels.

It will weigh over a hundred tons!

It can be said to be the most massive single satellite in history.

"emission!"

A majestic and powerful voice sounded in the launch command center.

The thick rocket made a deafening roar.

Even dozens of kilometers away, the roar of the rocket engine can still be heard.

There was even a slight earthquake near the launch site.

A large number of small stones oscillated back and forth on the ground.

Like gravel dancing on a drum head.

Nearly a hundred meters long red flames erupted behind the rocket.

Accompanied by white smoke reaching a height of more than 100 meters.

Like a giant dragon emerging from the abyss.

About to reach heaven!

In just 168 seconds, the most massive first-stage rocket burned thousands of tons of fuel.

The second-stage rocket was pushed to the critical height of the atmosphere and space.

After continuous pushing by two-stage rockets and three-stage rockets.

Less than forty minutes later.

The power-generating satellite finally reached its scheduled operating altitude.

"The power generation satellite solar panels are being deployed and are expected to take fifteen minutes."

In the control hall, staff are working diligently to report the satellite's operating status.

"The solar panels of the power generation satellite are really too big, and the deployment time is not a little longer than other satellites."

Qin Ming complained as he looked at the solar panels unfolding from the rolled-up state bit by bit on the big screen.

The power generation satellite is equipped with two fixed cameras.

Can see the situation on both sides of the satellite.

These two cameras can even adjust their shooting angles when necessary.

Let the ground command center see images from other angles.

"Power-generating satellites just rely on solar panels to work."

Zhang Xingyang looked at the big screen and said nonchalantly.

The power generation satellite has four huge solar power panels.

The area of ​​a single solar panel can break the previous world record.

The area of ​​one solar panel is the size of two standard football fields.

Four solar panels are the size of eight standard football fields.

Just looking at the area.

It is eight times larger than the previous largest space artifact, the International Space Station.

"The most advanced solar power generation panels we use can only achieve a power generation efficiency of 35%."

Qin Ming said with some regret.

"This is already pretty good. The power generation per square meter per day can reach 1.8 kilowatt hours."

Zhang Xingyang was not dissatisfied.

Now this efficiency is enough for them.

In fact, it is greatly exceeded.

The area of ​​four solar panels is nearly 56,000 square meters.

In other words, the power generation satellite can generate more than 100,000 kWh of electricity every day!

In comparison, those ground thermal power stations generate more than one million kilowatt hours of electricity every day.

This value may not be very large.

But compared to other objects in the space environment.

That's an astronomical number.

The International Space Station generates ninety kilowatts of electricity.

In other words, the International Space Station only generates more than 2,000 degrees of electricity a day.

It’s less than the amount of electricity generated by a power generation satellite in half an hour.

“When there are more solar power panels in the future, generating 10 million kWh of electricity a day is not an unattainable dream.”

Zhang Xingyang said while looking at the relatively crude power generation satellite.

In fact, the interface is reserved for power generation satellites.

More than just four solar panels.

Follow the plan.

This power-generating satellite can carry at least twenty-four solar panels.

Although it is still far from the 10 million kWh of electricity generated per day mentioned by Zhang Xingyang.

But it can also generate 600,000 kWh of electricity every day.

For now, it is already a relatively large number.

After all, space power generation is not like terrestrial solar power stations, wind power stations, or hydropower stations.

It will be affected by weather, tides, geology, etc.

Able to achieve extremely stable power generation.

The stability is stronger than that of nuclear power.

Unless the solar panel fails.

Otherwise, it can generate electricity 24 hours a day.

“I’m not too worried about the prospects of space power generation.”

Qin Ming said after taking his eyes away from the big screen.

"I'm more worried about other things."

Zhang Xingyang naturally worried about Qin Ming.

Space power stations need to fully receive sunlight.

Its solar panels are very large.

If it weren't for the material they used, it wouldn't be highly reflective.

Then at the right time, people can even see a huge star streaking across the night sky.

In recent times, the theory that radiation is harmful has become popular in society.

Qin Ming was worried that someone would make a fuss about the satellite's microwave.

Even the radiation from signal base stations is unbearable for these people.

Not to mention the more destructive microwaves.

Although they may not understand the working mechanism of microwaves.

But that doesn't stop them from showing off.

Oppose domestic technology development of microwave power transmission.

Zhang Xingyang has heard more rumors recently.

Even within the BS District Government, which was cooperating with them on the development of wireless power transmission, someone conveyed this information to him in a roundabout way.

However, this does not hinder Zhang Xingyang's will to continue to advance in this area.

"You don't have to worry about them, they won't be a hindrance to you."

Zhang Xingyang withdrew his gaze from Qin Ming and said.

"The power generation satellite solar panels have all been deployed."

"Preparations are underway for power generation testing."

After a series of sounds, the control hall fell into busyness again.

Everyone began to inject power generation start-up data into satellites thousands of miles away.

The power generation efficiency curve is marked on the large screen.

Start climbing little by little.

Starting from 160 kilowatts, it went up little by little.

Then it began to grow dramatically, instantly growing to 1,500 kilowatts.

This is the first solar panel that has been fully activated.

The startup speed of the remaining three solar panels is compared with the first one.

It's going to be a lot faster.

The power generation efficiency curve on the big screen climbed almost instantly like a straight line.

Less than a minute.

The power generation satellite has reached maximum efficiency.

6200 kilowatts!

This is much better than the data predicted by Zhang Xingyang and others before.

The power was previously predicted to be only 4,200 kilowatts.

This means that an extra 2,000 kilowatt-hours of electricity can be produced in one hour!

That’s 48,000 degrees in one day!

"It seems that the efficiency of solar panels in space is much greater than on the ground."

Qin Ming rubbed his chin and said.

"This is natural. Sunlight in space lacks the attenuation of the atmosphere and is more intense."

Zhang Xingyang nodded and said.

"Report to the ground command center, we are ready to receive power."

"The experiment can begin."

"Please advise."

From the other side, the voice of Jing Haipeng, who was working in the space station, came.

They need to operate wireless power transmission receiving end equipment within the space station.

Carry out the work of receiving electric energy.

"Approval for wireless power transmission experiments."

With Zhang Xingyang giving an order.

For later generations, an experiment began that would have a huge impact.

Microwaves are converted from electrical energy into invisible space.

Across a distance of thousands of kilometers, it was transmitted to the Tiangong Space Station.

Inside the space station, Jing Haipeng was guarding the extremely important wireless power transmission receiver.

There is no special feeling.

Even for a moment, he thought something unexpected had happened in the experiment.

It didn't start.

But the next second, he gave up this idea.

Because he saw that the indicator light on the receiving end had turned green.

This means that the receiving end starts working.

And the battery pack on the side also shows that it is being charged.

Jing Haipeng was a little surprised.

He thought he would feel something special the moment the microwave came through.

For example, feeling dizzy, or trembling all over, etc.

Is this the result?

However, the astronaut's professional ethics still allowed him to start working on the receiving end of the discovery.

Report to the ground:

"Report to the ground command center, the receiving end is operating normally."

"The current power is 840 kilowatts."

In the ground control center, after everyone heard this data.

They were all shocked.

When they first tested it, they did not use higher power.

It just uses 1000 kilowatts of power.

This is also considering that the Tiangong-1 space station currently does not have ultra-high power receiving capabilities.

One thousand kilowatts is basically its limit.

However, the figure of 840 kilowatts still surprises everyone.

Because power transmission has just begun, the loss is only 16%.

After a while, after the microwave transmission stabilizes, it should be even lower.

Twenty minutes later, the ground command center obtained more detailed power data of the space station.

Within the past twenty minutes, the lowest power was 840 kilowatts.

The maximum power is 910 kilowatts.

The average operating power is 892 kilowatts.

It’s even better than the data they obtained in a laboratory environment before!

The next step is to start experiments on transmitting power from space to the ground.

Once successful, it will greatly change the world's energy pattern! (End of chapter)