Variable-speed internal combustion engine generator set-variable speed constant-frequency AC-DC salient pole synchronous generator unit

A generator set, AC and DC technology, applied to the shape/style/structure of machines/engines, mechanical equipment, winding conductors, etc., can solve problems such as structural difficulties, lack of characteristics and functions of synchronous motors, etc.

Active Publication Date: 2018-01-09
宁玉泉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the doubly-fed wound asynchronous motor (DFIG), it uses a partial capacity PWM inverter, but the doubly-fed wound asynchronous motor (DFIG) is essentially a wound asynchronous motor, which is the characteristic of an asynchronous motor. Difficult structure, lack of synchronous motor characteristics and functions

Method used

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  • Variable-speed internal combustion engine generator set-variable speed constant-frequency AC-DC salient pole synchronous generator unit
  • Variable-speed internal combustion engine generator set-variable speed constant-frequency AC-DC salient pole synchronous generator unit
  • Variable-speed internal combustion engine generator set-variable speed constant-frequency AC-DC salient pole synchronous generator unit

Examples

Experimental program
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Embodiment Construction

[0130] by Figure 10 The new variable-speed constant-frequency AC-DC salient-pole synchronous motor shown is taken as an example to describe the specific implementation. The number of new motors is m=3, the number of pole pairs is P=2, the number of slots in the stator is Z=36, the stator is a three-phase AC symmetrical winding UVW winding, the number of parallel branches is a, and the stator rectifier winding (DC winding )Dabc winding. The number of rotor pole pairs is 2P=4, where N ar , S ar , N br , S br , N cr , S cr They are the positive assumptions of the three-phase magnetic pole windings of the rotor, the three-phase magnetic pole windings differ by 120° electrical angle in space, and 120° electrical angle in time. The stator is powered by a symmetrical three-phase AC power supply, and the three-phase magnetic pole winding of the rotor is fed by a low-frequency AC variable frequency power supply.

[0131] Stator winding: AC winding, UVW three-phase winding resp...

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Abstract

The invention relates to a novel variable-speed internal combustion engine (diesel engine, gas turbine) generator set which comprises a variable-speed diesel engine-generator unit and a variable-speedgas turbine-generator unit. The synchronous generator unit has variable-speed constant frequency characteristics and AC-DC power supplying characteristics and is the basis for constructing the novelvariable-speed internal combustion engine (diesel engine, gas turbine) generator set. The synchronous generator unit is the invention and the application in the novel movable variable-speed internal combustion engine generator unit, a large ship and warship composite electric power system, a novel multi-electricity large-aircraft system and a new energy wind and electricity-diesel electric composite system. The objectives of the invention are to achieve variable speed and constant frequency of the system in an isolated electric power system, improve operation characteristics of the internal combustion engine generator unit, reduce fuel consumption, increase economical benefits, reduce waste gas discharge and reduce environment pollution.

Description

technical field [0001] The invention belongs to a novel variable speed internal combustion engine (diesel engine, gas turbine) generating set. It is a generator set with variable speed and constant frequency characteristics and AC and DC power supply. It can make the unit variable speed, improve the operating characteristics of the internal combustion engine generator set, save fuel consumption, improve economic benefits, reduce exhaust emissions, and improve environmental pollution. . It particularly relates to the principle, characteristics and structure of a novel variable-speed constant-frequency AC-DC salient-pole synchronous motor, which belongs to the basic original innovation invention. Background technique [0002] The new variable speed constant frequency internal combustion engine generator set (Internal Combustion Engine Generators Set with Variable Speed ​​Constant Frequency) has been widely used in mobile diesel generator sets, large ship communications, aeros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28H02K1/24F02B63/04
Inventor 宁玉泉
Owner 宁玉泉
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