Adaptive Load Control System for Emergency Power Supply

1986 ◽  
Author(s):  
A. Kurosawa ◽  
N. Ueda
Keyword(s):  
Control System ◽  
Power Supply ◽  
Load Control ◽  
Emergency Power

scholarly journals 50 tons of steel mill BOF steelmaking dynamic control system and the application of variable-frequency emergency power supply-gun incident oxygen converter steel to enhance the development of power

2017 ◽  
Vol 1 (2) ◽  
Author(s):  
Hu Weitao
Keyword(s):  
Control System ◽  
Power Supply ◽  
Oxygen Converter ◽  
Dynamic Control ◽  
Converter Steel ◽  
Variable Frequency ◽  
Steel Mill ◽  
Emergency Power ◽  
Dynamic Control System

Abstract: This article emphatically about laigangsteel mills bof dynamic steelmaking control system.Detailed introduces the characteristics of the dynamic steelmaking converter characteristics and its key of technology is described.

A Novel Emergency Power Supply Unit in MW Wind Turbine Electric Pitch System

2012 ◽  
Vol 608-609 ◽  
pp. 730-733
Author(s):  
Cheng Cheng Ye
Keyword(s):  
Control System ◽  
Control Strategy ◽  
Power Supply ◽  
Power Supply Unit ◽  
Efficiency Improvement ◽  
Pitch Control ◽  
Operating Modes ◽  
Emergency Power ◽  
Pitch System ◽  
Parallel Series

An Emergency power supply unit is of great importance to an electric pitch control system especially in MW turbines. Based on a basic parallel-series shift circuit, the paper proposes a novel topology of an emergency power supply unit consisting of ultracapacitors in electric pitch system. Capacitance configuration is obtained and the percentage of efficiency improvement using parallel-series circuit is calculated. Then a control strategy involving three operating modes is established and specific parameters are shown with a flow chart. Finally a simulation of an emergency power supply unit is established and the result confirms the theory.

Design of Emergency Power Supply Control System for Seismic Station

2012 ◽  
Vol 229-231 ◽  
pp. 2343-2347
Author(s):  
Qin Gao ◽  
Zhen Jing Yao ◽  
Hong Wei Peng
Keyword(s):  
Control System ◽  
Power Supply ◽  
Single Phase ◽  
Control Strategies ◽  
Seismic Station ◽  
Input Voltage ◽  
High Property ◽  
Single Chip ◽  
Charging System ◽  
Emergency Power

According to the special requirements of power supply for seismic station, a new single-phase emergency power supply control system is proposed in this paper. The principle and structure diagram of the system is illustrated. The control strategies of the system and hardware design of key circuits are discussed in detail. The emergency power supply control system adopts high-property C8051F310 single chip micro-computer. According to the monitoring value of input voltage, the system switches between charging and inverting. Main circuit of inverting uses single-phase full-bridge topology. To correct a power factor, charging system applies boost circuit to make input current follow to a given current reference. Experiments validate the feasibility of the proposed design.

Control System of Power Supply in Under-Ground Coal Mining

2006 ◽  
Vol 2 (3) ◽  
pp. 12-19
Author(s):  
G. G. Pivnyak ◽  
Keyword(s):  
Control System ◽  
Coal Mining ◽  
Power Supply
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