Since the Huaxing Group began to provide a large number of fuel cells, motor systems, and high-performance computer systems to the army, the army's new weapons and equipment have begun to emerge like mushrooms after a rain, and now the pace of upgrading weapons and equipment has been accelerated.

In recent years, all the new combat weapons and equipment have used fuel cell power packs, and their power performance has comprehensively surpassed similar foreign products.

Enterprises that originally provided various power equipment to the military also received technical authorization to start producing fuel cell power packs.

The Navy is naturally very greedy for fuel cell power packs, and the Naval University of Engineering also undertakes most of the research and development tasks in ship power and power systems.

Accompanied by the heads of the Naval University of Engineering, Yang Jie also visited the ship power system laboratory.

In a laboratory building, Yang Jie also saw the large-scale permanent magnet motor propulsion system jointly developed by the Machine Tool Research Institute, the Electrochemistry R&D Center, and the Naval Engineering University Xué Lián.

The power of the permanent magnet motor propulsion system in front of him has reached 20 trillion and weighs more than 10 tons, which is higher than a person.

This set of power propulsion devices was manufactured by the Machine Tool Research Institute this year, and a total of two sets were made, one was given to the Naval Engineering University, and one was kept for various tests.

Next to it is a 25-megawatt fuel cell system, which is specially designed to supply power to this permanent magnet motor for testing.

The outside of these two sets of equipment is densely covered with all kinds of huge cables, like spider webs.

This set of permanent magnet motor uses the most advanced technology of the Machine Tool Research Institute, and this system is the most advanced product in the world at this stage.

A few years ago, Siemens also developed and produced a set of 20 megawatt permanent magnet motors, but the weight reached 80 tons, which is several times larger than the set designed and manufactured by Huaxing Group.

The top brass of the Navy attaches great importance to this, and when these two systems were established at the Naval Engineering University, all the top officials of the Navy came to the university, and they spoke highly of it.

The Navy immediately reduced the number of destroyers produced and began to design new surface and underwater ships with electric propulsion systems such as fuel cells and motor systems.

Now the navy can design and produce larger combat platforms, but the supporting power system, vertical hair system, and radar system cannot keep up, especially now that the navy is directly under military pressure from the United States and Japan, the pressure is very great, and it is eager to get a more advanced weapon combat platform.

In the past two years, Huaxing Group has made a breakthrough in adaptive radar technology and gallium nitride devices, and has provided the navy with the key transceiver module and processing system of active phased array radar, and the Naval University of Engineering is also involved in the development.

This destroyer that is about to be launched has a displacement of 7,000 tons, such a large displacement must be powered by a powerful gas engine, the original military introduced gas turbines from Ukraine through special channels, military enterprises have been committed to localization, because Ukraine is unwilling to transfer all manufacturing technology, so the navy can only assemble with parts provided by Ukraine, and the progress of localization is very slow.

Now Huaxing Group provides such a high-power permanent magnet motor, and the navy has also strengthened its determination to take the all-electric propulsion system of warships.

The fuel cell system of Huaxing Group adopts modular design, which can obtain more power through stacking, which can meet the power needs of any offshore platform, and can design and manufacture supporting motor systems, which completely solves the huge problems of the navy in the power system.

Although European and American countries began to develop high-power permanent magnet motors in the eighties, and now Siemens can also manufacture 20 megawatts of permanent magnet motors, but the volume is still too large.

On the American side, the DsR company can also manufacture a two-megawatt permanent magnet motor, which was developed for the large surface warship of the arsenal proposed by the United States.

The French are now also able to build 3.5 megawatts of permanent magnet motors, which they have begun to power their Squid-class submarines.

Russia is also developing a 4-megawatt permanent magnet motor, which is also intended to be used in submarines.

However, now these motors need to be matched with high-power generators from the ship, which is to grab space with the existing power system, and some want to squeeze more power out of the existing power system, and these motors are directly connected with the main shaft of the ship, which involves a large number of problems and is extremely complex.

Huaxing Group is now able to design and manufacture higher-power fuel cells, and solves the world's problems in the storage and transportation of hydrogen fuel, and can also design and manufacture such high-power motors, which has paved the way for Professor Ma Weimin to develop the integrated power system of the whole ship.

However, the fuel cell system and the motor system will generate electromagnetic signals, and there are so many weapons and equipment on the warship, the electromagnetic environment is extremely complex, and how to solve the electromagnetic compatibility is also an extremely difficult problem, and now Professor Ma is also doing research and development in this area.

Yang Jie visited the medium voltage DC integrated power system equipment developed by Professor Ma Weimin, and Professor Ma Weimin also personally introduced the specific technical details to Yang Shao.

This system uses 4-5kV direct current for power transmission, and Simonkang also provides IGBT modules and some switchboards and other electrical equipment, using the most advanced products.

It is precisely with the cooperation of so many companies and R&D departments of Huaxing Group that Professor Ma Weimin's R&D progress is also very fast.

Through the conversation with Professor Ma Weimin, Yang Jie also knew that these medium-voltage AC systems now developed in Europe and the United States are facing the AC frequency, phase, and If in wartime, when the warship is damaged, the power of the whole ship may be interrupted due to load imbalance, and the fuel cell emits direct current, and the adjustable range of boost and transformer voltage is very large, and at the same time, it does not produce capacitive current loss, nor will it produce the power interruption of the whole ship because of the load imbalance, and the stability and damage resistance of the whole system are higher.

Of course, these countries in Europe and the United States will not be aware of the superiority of the medium voltage DC integrated system, but these countries in the eighties chose the technical route of the medium voltage AC integrated system, through more than 10 years of research and development, now a large number of military and civilian dual-use ships are using this system, if the way to change course, must start all over again, those manufacturers are certainly not happy.

Huaxia Guo is a latecomer, and only began to develop this area in the mid-to-late nineties, so there is no historical baggage, and Professor Ma naturally chose a more advanced medium-voltage DC integrated power system.

In the memory of previous lives, the British and American navies were the first countries to use the medium-voltage AC integrated power system, especially the British Type 45 destroyer was the first warship in the world to adopt the integrated power system, and the subsequent British Queen Elizabeth-class aircraft carrier, the United States Zumwalt-class destroyer, the French Mistral-class amphibious assault ship and other warships using the medium-voltage AC integrated power system have been launched into service.

However, the British and American cutting-edge warships were the first to eat crabs in the field of integrated power systems, but they were not lightly clawed by this crab.

The No. 1 ship of the US DDg-1000 destroyer, the USS Zumwalt, was repeatedly delayed due to complex electrical system problems that far exceeded expectations, and the No. 2 ship Mansour was unable to run the electrical drive system at full power due to the failure of the harmonic filter during the construction of the commercial sea trial, and could only return to the shipyard early at a turtle speed.

Before Yang Jie's rebirth, the American DDg-1000 destroyer still failed to be delivered to the Navy.

The most exaggerated thing is that the British Type 45 destroyer Mason, which was originally scheduled to go to the Persian Gulf to carry out the mission, was unable to sail because of the rupture of the propeller transmission shaft, and the British Navy immediately suspended the deployment of the Type 45, and all six British Type 45 destroyers were lying on their stomachs because of power failures, and could not perform combat missions at all, and could only rely on the old Type 23 frigates to carry out combat missions.

The most fundamental reason for these problems is that the medium-voltage AC integrated power system in these European and American countries itself is extremely complex, and it is necessary to add permanent magnet motors, gas turbines, generators, diesel engines, and more electronic equipment, which makes the system more complex, and it is very easy to have multi-phase AC load imbalance, resulting in the power interruption of the whole ship. 11