• 제목/요약/키워드: automatic generation control

검색결과 267건 처리시간 0.026초

태양광 발전의 효율 향상을 위한 자동추적 제어 알고리즘 개발 (Development of Automatic Tracking Control Algorithm for Efficiency Improvement of PV Generation)

  • 최정식;고재섭;정동화
    • 전기학회논문지
    • /
    • 제59권10호
    • /
    • pp.1823-1831
    • /
    • 2010
  • This paper proposes an automatic tracking control algorithm for efficiency improvement of photovoltaic generation. Increasing the power of PV systems should improve the efficiency of solar cells or the power condition system. The normal alignment of the PV module always have to run perpendicular to the sun's rays. The solar tracking system, able to improve the efficiency of the PV system, was initiated by applying that to the PV power plant. The tracking system of conventional PV power plant has been studied with regard to the tracking accuracy of the solar cells. Power generation efficiency were increased by aligning the cells for maximum exposure to the sun's rays. Using a perpendicular position facilitated optimum condition. However, there is a problem about the reliability of tracking systems unable to not track the sun correctly during environmental variations. Therefore, a novel control algorithm needs to improve the generation efficiency of the PV systems and reduce the loss of generation. This control algorithm is the proposed automatic tracking algorithm in this paper. Automatic tracking control is combined the sensor and program method for robust control in environment changing condition. This tracking system includes the insolation, rain sensor and anemometer for climate environment changing. Proposed algorithm in this paper, is compared to performance of conventional tracking control algorithm in variative insolation condition. And prove the validity of proposed algorithm through the experimental data.

Automatic generation of sequence control programs

  • Gohi, Tetuji;Kojima, Fumio;Obana, Hideo;Sugimori, Hisayosi;Tsukimoto, Hirosi
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 19-21 Oct. 1992
    • /
    • pp.463-467
    • /
    • 1992
  • This paper describes the automatic generation of sequence control programs for DCS(Distributed Control System), PLC(Programable Logic Controller) and so on. Since there is no same manufacturing process, it is difficult to standardize sequence programs. We propose the automatic sequence control program generator which is CAD software using knowledge engineering technique.

  • PDF

Signal Generation for Automatic Control of a Monitoring Camera

  • Kim, Jin-Tae;Oh, Jeong-Su
    • Journal of information and communication convergence engineering
    • /
    • 제7권4호
    • /
    • pp.551-555
    • /
    • 2009
  • This paper proposes a signal generation method for automatic control of a monitoring camera. Using the control signal, the monitoring camera can track a moving object and keep it near the image center for a longer time. The proposed method is estimated in the experiments that automatically move a maker located at the specified position to the image center.

보상형 퍼지알고리즘을 이용한 전력발전기의 PID 제어 (PID Control with Fuzzy Compensation for Electric Power Generation Unit)

  • Hak Roh, Lee
    • 한국지능시스템학회:학술대회논문집
    • /
    • 한국퍼지및지능시스템학회 2004년도 추계학술대회 학술발표 논문집 제14권 제2호
    • /
    • pp.217-220
    • /
    • 2004
  • Controller that is designed in this paper is form that apply PID controller about Fuzzy algorithm. Fuzzy Controller that using this paper is can speak that compensation style fuzzy controller as form to solidify action of PID controller for plant. This is not form that autotuning the each PID coefficient. We Apply and examined the response character to AGC(Automatic Generation Control) system using designed controller.

  • PDF

A Systematic Design of Automatic Fuzzy Rule Generation for Dynamic System

  • Kang, Hoon;Kim, Young-Ho;Jeon, Hong-Tae
    • 한국지능시스템학회논문지
    • /
    • 제2권3호
    • /
    • pp.29-39
    • /
    • 1992
  • We investigate a systematic design procedure of automatic rule generation of fuzzy logic based controllers for highly nonlinear dynamic systems such as an engine dynamic modle. By "automatic rule generation" we mean autonomous clustering or collection of such meaningful transitional relations from one conditional subspace to another. During the design procedure, we also consider optimaly control strategies such as minimum squared error, near minimum time, minimum energy or combined performance critiera. Fuzzy feedback control systems designed by our method have the properties of closed-loop stability, robustness under parameter variabitions, and a certain degree of optimality. Most of all, the main advantage of the proposed approach is that reliability can be potentially increased even if a large grain of uncertainty is involved within the control system under consideration. A numerical example is shown in which we apply our strategic fuzzy controller dwsign to a highly nonlinear model of engine idling speed control.d control.

  • PDF

PC를 이용한 철판 자동절단시스템 개발 (Development of PC Controled Automatic Cutting System)

  • 김상헌;정경렬
    • 한국정밀공학회지
    • /
    • 제13권1호
    • /
    • pp.29-37
    • /
    • 1996
  • In this study, PC controlled CNC automatic cutting system is developed. Technological introduction of the control process and the computer programming has made possible not only the automatic control for cutting processing unit but also the easy-to-use graphic software that enables the cutting process. This program involves shape part drawing and amendment, pattern reading and saving, reading Autocad file, nesting process, kerf compensation, automatic cutting path generation, NC file conversion and motor control. Software is devided into 3 modules for easy work. First step enables drawing, amendment and pattern making, followed by automatic nesting and cutting path generation with kerf compensation. In the final step, drawing data is transmitted for the resulting automatic cutting processes. This software would be applicated in gas cutting and textile cutting so that it improves the productivity of cutting process.

  • PDF

A Study on Using Large-Scale Energy Storage Systems in Automatic Generation Control Operations of the Energy Management Systems

  • Im, Jihoon;Lim, Gunpyo;Park, Chanwook;Choi, Yohan;Kim, Seunghan;Chang, Byunghoon
    • KEPCO Journal on Electric Power and Energy
    • /
    • 제2권1호
    • /
    • pp.121-125
    • /
    • 2016
  • KEPCO has completed the installation and demonstration of a 52 MW battery energy storage system (BESS) for frequency regulation. Especially, 24 MW BESS is for Automatic Generation Control (AGC) in Shin-Yongin substation. Recently, KEPCO Research Institute has operated it connected to EMS of KPX. This paper discussed the operation strategy of EMS through a study on using 24 MW BESS in AGC operation and propose the improvement of AGC target. It is expected that this paper helps a safe and reliable operation and control of ESS for AGC through its continuous update.

Electrical Automatic Control System Based on the Internet of Things

  • Jiyong, Jin
    • Journal of Information Processing Systems
    • /
    • 제18권6호
    • /
    • pp.784-793
    • /
    • 2022
  • Grid-connected distributed power generation has been widely used in green energy generation. However, due to the distributed characteristics, distributed power generation is difficult to be dynamically allocated and monitored in the electrical control process. In order to solve this problem, this research combined the Internet of Things (IoT) with the automatic control system of electrical engineering to improve the control strategy of the power grid inverter according to the characteristics of the IoT system. In the research, a connection system of the power grid inverter and the IoT controller were designed, and the application effect was tested by simulation experiments. The results showed that the power grid inverter had strong tracking control ability for current and power control. Meanwhile, the electrical control system of the IoT could independently and dynamically control the three-phase current and power. The given value was reached within 50 ms after the step signal was input, which could protect the power grid from being affected by the current. The overall system could realize effective control, dynamic control and protective control.

범룡 퍼지 제어기 자동생성 시스템 개발 및 구현 (Development of Fuzzy Controller Automatic Generation System)

  • 이상형;김은태;권철;박민용
    • 대한전자공학회:학술대회논문집
    • /
    • 대한전자공학회 1999년도 하계종합학술대회 논문집
    • /
    • pp.792-795
    • /
    • 1999
  • Since the inception of fuzzy control, lots of methods to design fuzzy controller have been reported, However, it is admitted that these methods are tailored to special problems and cannot be used in general control situation. Therefore this paper proposes auromatic generation algorithm of fuzzy control system and develops an automatic fuzzy controller generator. For that purpose, the genetic algorithm is used and it searches for the optimal parameters to design the fuzzy controller

  • PDF

자동발전제어(Automatic Generation Control) 운용 개선방안 (A Study on Improvement Plan of AGC Operation)

  • 남재현;윤용범;박시우;추진부;김성학;이진수
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1999년도 하계학술대회 논문집 C
    • /
    • pp.1070-1072
    • /
    • 1999
  • Automatic Generation Control(AGC) is a control system whose objectives are to hold system frequency close to a specified nominal value and to maintain each unit's generation at the most economic value. It has been used to control the output of a generator by the control signal of the generator, but it is not appropriate to apply to generators which adopt the distributed control system. In this paper a method for improving the AGC operation is proposed, and the different response of each generator and various types of control systems of generators are considered. The interface among Remote Terminal Detector(RTU) and control systems and the direct delivery of the data between EMS and DCS also are proposed in the paper.

  • PDF