Research on Ship Shaft Power Generation System Based on BDFG and its Grid-Connected Control Strategy

2013 ◽  
Vol 448-453 ◽  
pp. 2830-2833 ◽  
Author(s):  
Nai Jun Shen ◽  
Hong Da Liu ◽  
Yu Pang ◽  
Hai Ning Yu ◽  
Hai Lan

The technology of Ship Shaft Power Generation System (SSPGS) is an effective way to save energy, Compared to the traditional SSPGS, the shaft power generation systems based on BDFG has the advantages of smaller capacity of the inverter, lower capital operational costs and higher reliability. In order to utilize rationally the resources, the paper analyses the ship operating mode, and presents the control strategy when the system working at grid-connected mode. The proposed vector control method is developed on the power winding (PW) stator flux frame and can be used to control both the active and reactive power on the grid-connected mode. The generator model and the control system are developed in Matlab/Simulink. The results show that the control strategy has good dynamic performance when the ship speed and power are change.

2014 ◽  
Vol 1008-1009 ◽  
pp. 505-509
Author(s):  
Fei Long ◽  
Hong Da Liu ◽  
Nai Jun Shen ◽  
Jin Jun Yin ◽  
Li Hong Li ◽  
...  

The Ship Shaft Power Generation System (SSPGS) is widely used in large and medium-sized container ship, and the SSPGS based on brushless doubly-fed generator (BDFG) has the advantages of smaller capacity of the inverter, lower capital operational costs and higher reliability. The proposed vector control method is developed on the power-winding stator flux frame and can be used to control the power winding voltage amplitude and frequency on the standalone mode. The generator model and the control system are developed in Matlab/Simulink. The results show that the control strategy has good dynamic performance when the ship speed and load are changed.


2019 ◽  
Vol 52 (3-4) ◽  
pp. 169-182 ◽  
Author(s):  
R Sitharthan ◽  
CK Sundarabalan ◽  
KR Devabalaji ◽  
T Yuvaraj ◽  
A Mohamed Imran

In this literature, a new automated control strategy has been developed to manage the power supply from the wind power generation system to the load. The main objective of this research work is to develop a fuzzy logic–based pitch angle control and to develop a static transfer switch to make power balance between the wind power generation system and the loads. The power management control system is a progression of logic expressions, designed based on generating power and load power requirement. The outcome of this work targets at an improved power production, active and reactive power compensation and ensures system load constraints. To validate the proposed control strategy, a detailed simulation study is carried out on a 9-MW wind farm simulation simulated in MATLAB/Simulink environment.


2013 ◽  
Vol 694-697 ◽  
pp. 2200-2204
Author(s):  
Rui Guo ◽  
Xiu Ping Wang ◽  
Chun Yu Qu ◽  
Di Bai

This paper puts forward the unique design, through the research by solar panels, battery, the converter and photovoltaic power generation system composed by switch electrical, and according to the characteristics of solar panels and batteries, the actual situation and the requirements of a stable system, the battery charging and discharging control, etc. Then this paper further researched control strategies of the two kinds of operating mode of electric power grid and battery from nets, designed a converter of rated power 50 kW used for light storage complementary power generation system and light storage complementary test platform. Using the test platform to do the storage battery charging and discharging experiments and away from the grid experiments, the final experiment results show that the hardware design and the control strategy in this paper are proposed correctness and effectiveness.


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