• Title/Summary/Keyword: Power generation characteristic

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A study on solar-wind hybrid power generation system (태양광 및 풍력 하이브리드 발전 시스템에 관한 연구)

  • Oh, Jin-Seok;Jo, Kwan-Jun
    • Journal of Advanced Marine Engineering and Technology
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    • v.33 no.8
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    • pp.1226-1231
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    • 2009
  • In this paper, a solar-wind hybrid system is decsribed for Stand-Alone(SA) power generation system. Mostly SA power generation system for ocean facilities composes a solar system. Normally, the output power of solar system is decreased with weather condition as cloudy and rainy. Solar-wind hybrid system can be operated as complement system each other. In this paper, the characteristic simulation of solar and wind is performed by LabVIEW. The hybrid power generation system is designed according to simulation results, and is tested for checking the complement characteristic.

Operational Characteristic Analysis of DC Micro-grid with Detail Model of Distributed Generation (분산전원 상세모델을 적용한 DC Micro-grid의 동작특성 분석)

  • Lee, Ji-Heon;Kwon, Gi-Hyun;Han, Byung-Moon;Cha, Han-Ju
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.58 no.11
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    • pp.2175-2184
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    • 2009
  • This paper describes operational analysis results of the DC micro-grid using detailed model of distributed generation. Detailed model of wind power generation, photo-voltaic generation, fuel-cell generation was implemented with the user-defined model of PSCAD/EMTDC software that is coded with C-language. The operation analysis was carried out using PSCAD/EMTDC software, in which the power circuit is implemented by built-in model and the controller is modelled by user-defined model that is also coded with C-language. Various simulation results confirm that the DC micro-grid can operate without any problem in both the interconnected mode and the islanded mode. The operation analysis result confirms that the DC micro-grid make it feasible to provide power to the load stably. And it can be utilize to develop the actual system design and building.

The Development and Application of a Training Base for the Installation and Adjustment of Photovoltaic Power Generation Systems

  • Chuanqing, SUN
    • International Journal of Advanced Culture Technology
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    • v.4 no.1
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    • pp.37-50
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    • 2016
  • In recent years, the development and application of green energy resources have attracted more and more /$^*$ 'tention of people. The training room presented here is focused on the terminal applications of a photovoltaic power generation system (PPGS). Through introducing the composition and the general design principles, we aimed at leading the students to master the fundamental skills required for its design, installation and construction. The training room consists of numerous platforms, such as: PPGS, Wind and Photovoltaic Hybrid Power Generation Systems, Wind Power Generation Equipments, Simulative Grid-Connected Power Generation System, Electronic Technology Application of New Energy, etc. This enables the students to obtain their project and professional skills training via assembling, adjusting, maintaining and inspecting, etc., various component parts of the photovoltaic and new energy power generation systems, to further grasp the fundamental and related theoretical knowledge, and to further reinforce their practical and operational skills, so as to improve their problem-analyzing and problem-solving abilities.

Analysis of Power Generation Characteristics of Agricultural Potovoltaic Systems (농업 태양광의 발전 특성 분석)

  • Sunho, Yu;Eui-Chan, Lee;Seungwoo, Son;Bongsuck, Kim
    • KEPCO Journal on Electric Power and Energy
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    • v.8 no.2
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    • pp.151-157
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    • 2022
  • The transition to renewable energy, especially the expansion of photovoltaic (PV) generation, has become a global megatrend that can no longer be reserved. However, since the site for PV is limited, it is necessary to use the land efficiently. As an alternative, the concept of utility scale agricultural PV(UAPV) is a technology that continues farming in the lower part and installs PV in the upper part of farmland to efficiently use the land. Therefore, for UAPV, the growth of crops in the lower part and the optimal operation of PV in the upper part are important. In this, we analyze the characteristics of the upper PV generation system in the UAPV based on the empirical results under various conditions, and propose future research directions of the UAPV.

Generation Characteristic of WEC for Buoy (브이용 파력발전시스템의 발전특성)

  • Oh, Jin-Seok;Kwak, Jun-Ho;Bae, Soo-Young;Jung, Sung-Young;Lee, Ji-Young
    • Journal of Advanced Marine Engineering and Technology
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    • v.32 no.8
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    • pp.1123-1128
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    • 2008
  • Marine facilities like buoy, lighthouse are operated with stand alone power supply system. This power system can consist of a stand-alone type power system such as PV(Photovoltaic) system, wave system or hybrid system which is not cooperated with a commercial power system. Generally, PV power system for marine facilities can not supply a sufficient power to buoy, because it is so influenced from weather condition. For solving this problem the hybrid power system with PV and wave is studied on a various area, that is why a hybrid power system is requires to overcome these problems. This paper will describe a generation characteristic of WEC(Wave Energy Converter) for buoy, and an AFS(Anti-Fouling System) influence on WEC.

Development of Small Wave Power Controller for Ocean Facilities (해양 시설물용 소형 파력발전 전력제어기 개발)

  • Jo, Kwan-Jun;Oh, Jin-Seok
    • Journal of Advanced Marine Engineering and Technology
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    • v.35 no.6
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    • pp.835-841
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    • 2011
  • Wave power generation systems operated in the ocean, has been developed as large power and grid power connection systems in general. However, small wave power generation systems offer operational efficiency for the lighted (navigation aids) buoy. They simply adopts a full-wave rectification for charging battery (direct connection method). In this paper, a wave power controller based on a booster converter is developed by considering a characteristic of the wells turbine. Both direct connection and booster converter power controller is designed and tested to compare the characteristics. Experiments demonstrate that the output of the proposed controller has improved the characteristic of output power, when generator output voltage is low.

Operational Characteristic Analysis of a Single-Phase PCS for PV Power Generation System with Active Filter Function (엑티브 필터 기능을 가지는 단상 태양광 PCS의 운전특성 해석)

  • Jang, Seong-Jae;Seo, Hyo-Ryong;Kim, Gyeong-Hun;Park, Sang-Soo;Kim, Sang-Yong;Park, Min-Won;Yu, In-Keun
    • Proceedings of the KIEE Conference
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    • 2009.07a
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    • pp.1051_1052
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    • 2009
  • This paper deals with operational characteristic analysis of a single-phase PCS (Power Conditioning System) for PV (Photovoltaic) power generation system with AF (Active Filter) function. The theory of dq transformation has been applied to the control strategy of a single-phase PV power generation system to implement the AF function. Application of the virtual two-phase using phase-shift makes it possible to use the dq theory for the single-phase PV power generation system. The authors are sure that the proposed system is a very useful to compensate harmonics caused by nonlinear loads in a single-phase utility system. In this paper, not only a theoretical aspect of the single-phase PV-AF system is discussed, but also the DSP (Digital Signal Processor) based experiment results are presented to demonstrate the effectiveness of the single-phase PV-AF system.

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Probabilistic Generation Modeling in Electricity Markets Considering Generator Maintenance Outage (전력시장의 발전기 보수계획을 고려한 확률적 발전 모델링)

  • Kim Jin-Ho;Park Jong-Bae
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.54 no.8
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    • pp.418-428
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    • 2005
  • In this paper, a new probabilistic generation modeling method which can address the characteristics of changed electricity industry is proposed. The major contribution of this paper can be captured in the development of a probabilistic generation modeling considering generator maintenance outage and in the classification of market demand into multiple demand clusters for the applications to electricity markets. Conventional forced outage rates of generators are conceptually combined with maintenance outage of generators and, consequently, effective outage rates of generators are newly defined in order to properly address the probabilistic characteristic of generation in electricity markets. Then, original market demands are classified into several distinct demand clusters, which are defined by the effective outage rates of generators and by the inherent characteristic of the original demand. We have found that generators have different effective outage rates values at each classified demand cluster, depending on the market situation. From this, therefore, it can be seen that electricity markets can also be classified into several groups which show similar patterns and that the fundamental characteristics of power systems can be more efficiently analyzed in electricity markets perspectives, for this classification can be widely applicable to other technical problems in power systems such as generation scheduling, power flow analysis, price forecasts, and so on.

Analysis on Power Generation Characteristics of a Vehicle Rooftop Photovoltaic Module with Urban Driving Conditions (도심 주행 조건에 따른 차량 탑재 태양광모듈의 발전특성 분석)

  • Jeon, Seonwoo;Choung, Seunghoon;Bae, Sungwoo;Choi, Jaeyoung;Shin, Donghyun
    • The Transactions of the Korean Institute of Power Electronics
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    • v.25 no.2
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    • pp.79-86
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    • 2020
  • This study examines the power generation characteristics of a vehicle rooftop photovoltaic module with urban driving conditions. Actual test data with an illuminometer and a thermometer were used to analyze the power generation characteristics of the vehicle rooftop photovoltaic module. In addition, the power generation characteristics were analyzed in terms of urban driving conditions, irradiance, ambient temperature, and photovoltaic module temperature. This study also analyzes the power generation characteristics of the vehicle rooftop photovoltaic module with urban driving conditions through a wavelet transform filtering method. The power generation characteristics of the vehicle rooftop photovoltaic module with urban driving conditions depend on the change in irradiance rather than that in photovoltaic module temperature.

Analysis on the Operation Characteristic of the Combined Electric Power Generation System by Photovoltaic and Wind Energy with Power Storage Apparatu (동력저장장치를 이용한 풍력$\cdot$태양광 복합발전시스템의 특성분석)

  • Lim Jung-Yeol;Lee Jung-Il;Jung Hak-Su;Cha In-Su
    • Proceedings of the KIPE Conference
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    • 2001.07a
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    • pp.58-62
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    • 2001
  • Photovoltaic and wind power generation have an advantage of unlimited and unpolluted amount of energy resource. In conventional wind generation systems, since the blade rotates at low speed when the velocity of wind decreases their operations are possible only under limited conditions. Therefore they are in trouble of self-generation without the help of auxiliary generation devices outside. The system driven by the wind force in this paper consists of a generator, an invertor, batteries and sets for power storage with a spring. In this paper, the operation characteristics of system were analyzed through experiments for a trial product.

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