전체 글 234

[논문해석] Automatic Power Frequency Rejection Instrumentation for Nonintrusive Frequency Signature Tracking

0. 원문https://ieeexplore.ieee.org/document/9152122 Automatic Power Frequency Rejection Instrumentation for Nonintrusive Frequency Signature TrackingThis article presents a design for data acquisition hardware that can automatically track and reject utility frequency components of a measured current or voltage waveform. Measurements of subtle harmonic content in the waveform can therefore be made ..

#1 Anaconda3& & Python & Pycharm install

1. 아나콘다 설치https://www.anaconda.com/distribution Anaconda Distribution — Anaconda documentationPackages View an archived list of packages installed with Anaconda Distributiondocs.anaconda.com 2. 파이썬 3.X.X 설치(1) 파이썬만 사용파이썬 파일 위치 열어서 주소 복사 계정의 환경변수 편집 열고 경로 추가 명령 프롬프트(cmd)에서 파이썬 실행 (2) 아나콘다 사용 파이썬아나콘다 프롬프트 실행 conda create -n 원하는 가상환경 이름 python=3.7가상환경 설치 conda activate deeplearning가상환경 활성화 3. Pycha..

[논문리뷰] 1-션트 인버터의 고조파 저감을 위한 새로운 상전류 복원에 관한 연구

0. 원문https://e-jamet.org/_common/do.php?a=full&b=52&bidx=1088&aidx=14167 The Korean Society of Marine Engineering[ Original Paper ]Journal of the Korean Society of Marine Engineering - Vol. 42, No. 4, pp. 331-337 Abbreviation: J. Korean Soc. of Marine Engineering (JKOSME)ISSN: 2234-7925 (Print) 2234-8352 (Online) Print publication date 31 May 2018 Received 22 Feb 201e-jamet.org 1. 내용

[논문리뷰] Three-Phase Current Reconstruction for PMSM Drive With Modified Twelve Sector Space Vector Pulse Width Modulation

0. 원문https://ieeexplore.ieee.org/document/9815138 Three-Phase Current Reconstruction for PMSM Drive With Modified Twelve Sector Space Vector Pulse Width ModulationTo reduce the cost and size of the power converters, techniques of reconstructing three-phase current through a single current sensor have been employed in permanent-magnet synchronous motors. In existing studies, the reconstruction pr..

[논문리뷰] 1-션트 인버터의 고조파 저감을 위한 새로운 상전류 복원에 관한 연구

0. 원문https://e-jamet.org/_common/do.php?a=full&b=52&bidx=1088&aidx=14167 The Korean Society of Marine Engineering[ Original Paper ]Journal of the Korean Society of Marine Engineering - Vol. 42, No. 4, pp. 331-337 Abbreviation: J. Korean Soc. of Marine Engineering (JKOSME)ISSN: 2234-7925 (Print) 2234-8352 (Online) Print publication date 31 May 2018 Received 22 Feb 201e-jamet.org 1. 내용

[논문요약] A Sensorless Power Reserve Control Strategy for Two-Stage Grid-Connected PV Systems

0. 원문https://ieeexplore.ieee.org/document/7809015 A Sensorless Power Reserve Control Strategy for Two-Stage Grid-Connected PV SystemsDue to the still increasing penetration of grid-connected photovoltaic (PV) systems, advanced active power control functionalities have been introduced in grid regulations. A power reserve control, where namely the active power from the PV panels is reservieeexplor..

[논문요약] Active Power Control of Voltage-Controlled Photovoltaic Inverter in Supporting Islanded Microgrid Without Other Energy Sources

0. 원문https://ieeexplore.ieee.org/document/9389781 Active Power Control of Voltage-Controlled Photovoltaic Inverter in Supporting Islanded Microgrid Without Other Energy SourcesThe active power control of increasing renewable energy resources is a growing concern. For example, solar energy exploitation is highly dependent on the central controller and other resources. Previous research has introd..

[논문요약] A Simple Open-Circuit Detection Strategy for a Single-Phase Grid-Connected PV Inverter Fed From Power Optimizers<고은>

0. 원문https://ieeexplore.ieee.org/document/8031996 A Simple Open-Circuit Detection Strategy for a Single-Phase Grid-Connected PV Inverter Fed From Power OptimizersA simple and real-time open-circuit fault (OCF) detection method is proposed for a single-phase grid-connected photovoltaic inverter fed by series-connected power optimizers (POs). To implement the proposed method, PO controllers period..

WaveRunner 9000 Oscilloscopes

영점 잡기처음 시작 시 Calibration을 해줘야 하기에 측정 기기의 데이터에 Prove > CP030 을 누르고 Degauss prove를 해주면 노이즈가 없어지고 Auto zero를 해주면 0점이 잡힌다.1번과 2번 측정기에 Zero를 눌러 0점을 한 곳으로 맞춘다.  영점이 안잡힐 때(1) 방법1영점이 안잡힐 때는 왼쪽의 드라이버를 오른쪽 Prove의 구멍에 넣어 돌려보면 파형이 살짝 바뀌게 된다. (2) 방법2Prove를 GND와 Cal에 꽂고 Auto setup을 누르고 뜨는 창의 버튼을 누른다.Prove에 드라이버로 조율하면서 위 파형의 기울기가 수평을 유지하게끔 만들어주면 영점이 맞게된다.전류 Prove는 degauss와 영점을 꼭 맞추어 주고 전압 Prove는 한번 맞추어주면 된다.  ..

Study/Manual 2024.05.28

[논문요약] High-Accuracy and Fast-Speed MPPT Methods for PV String Under Partially Shaded Conditions<가현>

0. 원문https://ieeexplore.ieee.org/document/7182327  High-Accuracy and Fast-Speed MPPT Methods for PV String Under Partially Shaded ConditionsThe photovoltaic (PV) string under partially shaded conditions exhibits complex output characteristics, i.e., the current–voltage ieeexplore.ieee.org분적으로 음영 처리된 조건의 광전지(PV) 스트링은 전류-전압과 같은 복잡한 출력 특성을 나타냅니다. ( 나-- 안에) 곡선은 여러 전류 계단을 나타내는 반면, 전력-전압 ( 피-- 안에) 곡선..

[논문요약] Effect of Partial Shading on PV Fed Induction Motor Water Pumping Systems<희현>

0. 원문https://ieeexplore.ieee.org/document/8492424 Effect of Partial Shading on PV Fed Induction Motor Water Pumping SystemsPartial shading is one of the certain conditions in photovoltaic (PV) power plants. Often the panels get partially shaded due to soiling, clouds, and trees. The effect of shading is of high concern and importance especially in applications such as water puieeexplore.ieee.org..

[논문요약] A Switched PV Approach for Extracted Maximum Power Enhancement of PV Arrays During Partial Shading<지은>

0. 원문https://ieeexplore.ieee.org/document/7079499 A Switched PV Approach for Extracted Maximum Power Enhancement of PV Arrays During Partial ShadingThis paper proposes a switched photovoltaic (PV) approach to enhance the extracted maximum power from a PV array during partial shading conditions. The proposed system is simple and cost effective. However, it may provide lower power enhancement comp..