CN201252455Y - Marine high-voltage brushless synchronous generator - Google Patents

Abstract

A marine high-voltage brushless synchronous generator, which includes a rotating shaft installed on a bearing, a main generator rotor, a main generator stator, an exciter stator, an exciter rotor, and a rotating rectifier installed coaxially. There is a cooler, and the main generator stator is a high-voltage stator, which is designed according to the corresponding high voltage; the rest of the components are designed according to the requirements of existing known marine motor components. The power of the utility model can reach 2000-10000kVA, and the voltage can reach 1-11kV, which can effectively reduce the manufacturing cost of the ship's electrical system and improve the economy of the ship's electrical system operation.

Description

A marine high-voltage brushless synchronous generator

technical field

The utility model relates to a marine high-voltage brushless synchronous generator.

Background technique

According to the relevant theory of the motor, under the same power, the current and voltage of the motor are inversely proportional. The lower the voltage, the greater the current, the greater the loss of the transmission line, and the greater the cross-sectional area of the transmission bus and the switching capacity. In this way, the initial investment cost of the system increases and the operating economy decreases; from the perspective of motor design, due to the The number of parallel branches is limited by the number of pole pairs of the motor, and the output current of the generator is also restricted by this. Therefore, the output power of the low-voltage generator cannot be made very large. The power of marine brushless synchronous generators is generally less than 2000kVA, and the voltage is below 690V.

However, with the increase of the tonnage of the ship, coupled with the electricity demand of the electric machinery of some special operation ships (such as dredgers, etc.), the capacity of the single unit of the marine motor is increased to reduce the manufacturing cost of the ship's electrical system and improve the operating economy. , has become an important and urgent issue that people are facing.

Utility model content

The purpose of the utility model is to provide a marine high-voltage brushless synchronous generator, thereby improving the power and voltage of the marine brushless synchronous generator to a higher level, and meeting the needs of ships for large-scale high-voltage brushless synchronous generators.

The technical scheme of the utility model is: it includes a rotating shaft installed on bearings at both ends, a main generator rotor, a main generator stator, an exciter stator, an exciter rotor, and a rotating rectifying device installed coaxially. There is a cooler, the main generator stator is a high-voltage stator, designed according to the corresponding high voltage, and the rest of the components include the rotating shaft, bearings, main generator rotor, cooler, exciter stator, exciter rotor, and rotating rectification device. Design according to the requirements of existing known marine motor parts.

Because the main generator stator of the utility model is a high-voltage stator, the power and voltage of the marine brushless synchronous generator can be improved to a higher level. The power of the large-scale high-voltage brushless synchronous generator for marine can reach 2000-10000kVA, and the voltage can reach 1-11kV. , can greatly reduce the manufacturing cost of the ship's electrical system, and improve the economy of the ship's electrical system operation.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

In the figure: 1. Shaft; 2. Bearing; 3. Main generator rotor; 4. Main generator stator; 5. Cooler; 6. Exciter stator; 7. Exciter rotor; 8. Rotary rectifier; 9. bearings.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

With reference to Fig. 1, present embodiment comprises rotating shaft 1 that both ends are installed on bearing 2 and bearing 9, main generator rotor 3, main generator stator 4, exciter stator 6, exciter rotor 7, and exciter lower end is provided with rotating shaft. The rectifying device 8 is provided with a cooler 5 above the main generator, and the stator of the main generator is a high-voltage stator.

Claims (1)

1. A marine high-voltage brushless synchronous generator, including a rotating shaft installed on bearings at both ends, a main generator rotor, a main generator stator, an exciter stator, an exciter rotor, and a rotating rectifier installed coaxially to generate electricity There is a cooler above the machine, and the feature is that the main generator stator is a high-voltage stator, which is designed according to the corresponding high voltage.

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