Method for stabilizing power system of marine gas turbine generator set
A technology of gas turbine and generator set, which is applied in the direction of controlling generators, control systems, electrical components, etc., and can solve the problems of the influence of the stability of the ship's comprehensive power system, the difficulty of reaching the prime mover generator set, and the failure to operate normally, so as to achieve long service life , Improve power quality, low environmental requirements
Active Publication Date: 2012-12-19
HARBIN ENG UNIV
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Problems solved by technology
This makes many power electronic devices and corresponding control equipment on the ship unable to operate normally, which will have a significant impact on the stability of the ship's integrated power system
The ideal way to solve the problem of large load fluctuations is to adjust at the prime mover end to generate corresponding electric energy according to the load demand, but it is difficult for the prime mover generator set to meet this requirement
Method used
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Embodiment approach 1
[0013] combine Figure 1~3 , to continuously detect the output Δ of the fuel PID controller of the power system of the gas turbine generator set 油 , if Δ 油 If it is less than the set value minus 7% of the fuel rating, it is determined that the power system of the gas turbine generator set is load shedding, and the flywheel energy storage device is incorporated into the power system of the gas turbine generator set to operate and store energy. Value Δ 转 When the stability is within 0.5% of the rated value of the gas turbine generator set, the flywheel energy storage device is turned off, and the flywheel energy storage device is in the standby running state; if Δ 油 If it is greater than the set value of 8% of the fuel rating, it is determined that the power system of the gas turbine generator set is increasing the load, and the flywheel energy storage device is integrated into the power system of the gas turbine generator set to operate and release energy. Value Δ 转 When th...
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The invention aims to provide a method for stabilizing a power system of a marine gas turbine generator set. The method comprises the following main steps: continuously detecting the output volume (Delta oil) of a PID (proportion integration differentiation) controller of fuel in the power system of the gas turbine generator set, incorporating a flywheel energy storage device into the power system of the gas turbine generator set if Delta oil is smaller than a set value I (negative 7%) or higher than a set value II (positive 8%); closing the flywheel energy storage device when the differential value (Delta rotation) of the standard rotation speed and the actual rotation speed of the gas turbine generator set is stabilized within 0.5% rated value of the gas turbine generator set; and not incorporating the flywheel energy storage device into the power system of the gas turbine generator when Delta oil is within the range between the set value I and the set value II. According to the method provided by the invention, the flywheel energy storage system enables the power system to operate smoothly while the gas turbine generator set generates heavy-load fluctuation, improves the quality of electric power and is endowed with the advantages of environmental friendliness, high density for energy storage, long service life, low requirements of environment, and the like.
Description
technical field [0001] The invention relates to a method for improving the operation safety of a gas turbine generating set. Background technique [0002] Ship electric propulsion is a propulsion method in which the prime mover drives the generator to form a generator set to generate power, supplies power to the propulsion motor through the power distribution and speed control system, and then drives the propeller by the motor. [0003] The power system of the marine generator set is an isolated power grid that operates independently. The capacity of the power station is small and it is sensitive to changes in power load. The capacity of some large motors is comparable to the capacity of the power station, and they have a great influence on each other, which will cause large fluctuations in the speed and frequency of the generator set. On modern ships, various electrical equipment and high-power devices are used more and more. When various high-power equipment starts or st...
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IPC IPC(8): H02J3/28H02P9/04
Inventor 王志涛李淑英孔庆毅曹云鹏谢春玲王伟影李铁磊
Owner HARBIN ENG UNIV