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A Study on Photovoltaic/Wind/Diesel Hybrid Power System
Jun-Seok Cho,Jae-Seok Gho,Kyung-Hyun Kim,Gyu-Ha Choe,Eung-Sang Kim,Chang-Sung Lee 전력전자학회 2001 ICPE(ISPE)논문집 Vol.2001 No.10
In this paper, to solve the defect of stand-alone type power system in a remote area, a hybrid power system with photovoltaic/wind/diesel generators is proposed. A hybrid power system has a power-balanced controller to equilibrate generation power with a given load demand and which is composed of common DC power system. To execute a power-balanced control, a hybnd power system is assumed that all of power generators have the characteristics of an equivalent current-source and load sharing control technique must be needed at the same time. So this paper describes the algorithm of interactive technique for design of a hybnd power system.<br/>
A Study on Photovoltaic/Wind/Diesel Hybrid Power System
Byung-Hwan Jeong,Jun-Seok Cho,Jae-Seok Gho,Gyu-Ha Choe,Eung-Sang Kim,Chang-Sung Lee 전력전자학회 2003 JOURNAL OF POWER ELECTRONICS Vol.3 No.1
In this paper, a hybrid power system with photovoltaic/wind/diesel generators is proposed to solve the defect of stand-alone type power system in a remote area. A hybrid power system has a power-balanced controller to equilibrate generation power with a given load demand and which is composed of common DC power system. To execute a power-balanced control, a hybrid power system is assumed that all of power generators have the characteristics of an equivalent current-source and load sharing control technique must be needed at the same time So this paper discusses the structure of power-balance control for hybrid power system. And through the results of simulation, the proposed scheme was verified.<br/>
Characteristic Analysis of PWM Converter for On-Line UPS System
Hong-Sung Kim,Jung-Hwan So,Jae-Seok Gho,Young-Gil Park 전력전자학회 1995 ICPE(ISPE)논문집 Vol.1995 No.10
Generally diode rectifier or phase controlled rectifier have been widely used for On-Line UPS system These AC-DC converter topologies make plentiful harmonics and low power factor to be generated in AC source side. To overcome these problems, PWM converter has been adopted In this paper the operating characteristics of PWM converter are analyzed by using simulation tool of ACSL and the experiments under steady state and transient state.
Analysis of PWM Converter for V-I Output Characteristics of Solar Cell
Han, Jeong-Man,Jeong, Byung-Hwan,Gho, Jae-Seok,Choe, Gyu-Ha The Korean Institute of Power Electronics 2003 JOURNAL OF POWER ELECTRONICS Vol.3 No.1
Recently, photovoltaic system has been studied widely as a renewable energy system, because it does not produce environmental pollution and it has infinity energy source from the sun. A study on photovoltaic system has a lot of problems like as reappearance and repetition of some situation in the laboratory experiment for development of MPPT algorithm and islanding detection algorithm. because output characteristics of solar cell are varied by irradiation and surface temperature of solar cell. Therefore, the assistant equipment which emulates the solar cell characteristics which can be controlled arbitrarily by researcher is require to the researchers for reliable experimental data. In this paper, the virtual implement of solar cell (VISC) system is proposed to solve these problems and to achieve reliable experimental result on photovoltaic system. VISC system emulates the solar cell output characteristics, and this system can substitute solar cell in laboratory experiment system. To realize the VISC, mathematical model of solar cell is studied for driving converter and the DC/DC converters are compared in viewpoint of tracking error using computer simulation. Output dynamic characteristic of PV array is varied by irradiation and PWM converter performance is studied using PSIM simulator.
Analysis of PWM Converter for V-I Output Characteristics of Solar Cell
Jeong-Man Han,Byung-Hwan Jeong,Jae-Seok Gho,Gyu-Ha Choe 전력전자학회 2003 JOURNAL OF POWER ELECTRONICS Vol.3 No.1
Recently, photovoltaic system has been studied widely as a renewable energy system, because it does not produce environmental pollution and it has infinity energy souice from the sun. A study on photovoltaic system has a lot of problems like as reappearance and repetition of some situation in the laboratory experiment for development of MPPT algorithm and islanding detection algorithm, because output characteristics of solar cell are vaned by irradiation and surface temperature of solar cell Therefore, the assistant equipment which emulates the solar cell characteristics Which can be controlled arbitrarily by researcher is require to the ieseaichers for reliable experimental data In this paper, the virtual implement of solar cell (VISC) system is proposed to solve these problems and to achieve reliable experimental result on photovoltaic system. VISC system emulates the solar cell output characteristics, and this system can substitute solar cell in laboratory experiment system To realize the VISC, mathematical model of solar cell is studied for driving converter and the DC/DC converters are compared in viewpoint of tracking error using computer simulation Output dynamic characteristic of PV array is vaned by iriadiation and PWM converter performance is studied using PSIM simulator<br/>
전압리플 평균화를 이용한 새로운 MPPT기법에 관한 연구
최해룡(Hae-Ryong Choi),고재석(Jae-Seok Gho),최규하(Gyu-Ha Choe),김훙근(Heung~Geun Kim),신우석(Woo-Seok Shin) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
Of two photovoltaic systems such as stand-alone type and utility interactive one, the utility interactive systems are so valuable for power peak-cut particularly in summer season. For the maximum power point tracking (MPPT) by which the generated energy can be maximized, many control methods have been reported up to now. To overcome the disadvantages of the conventional ones, a new MPPT algorithm is proposed which can improve both tracking ability and generating efficiency of photovoltaic system without chopper.
A Study on Photovoltaic/Wind/Diesel Hybrid Power System
Jeong, Byung-Hwan,Cho, Jun-Seok,Gho, Jae-Seok,Choe, Gyu-Ha,Kim, Eung-Sang,Lee, Chang-Sung The Korean Institute of Power Electronics 2003 JOURNAL OF POWER ELECTRONICS Vol.3 No.1
In this paper, a hybrid power system with photovoltaic/wind/diesel generators is proposed to solve the defect of stand-alone type power system in a remote area. A hybrid power system has a power-balanced controller to equilibrate generation power with a given load demand and which is composed of common DC power system. To execute a power-balanced control, a hybrid power system is assumed that all of power generators have the characteristics of an equivalent current-source and load sharing control technique must be needed at the same time. So this paper discusses the structure of power-balance control for hybrid power system. And through the results of simulation, the proposed scheme was verified.