A5027640388- Microgrid Control and Optimization
- Optimal Power Flow Distribution
- HVDC Systems and Fault Protection
- Smart Grid Energy Management
- Japanese History and Culture
- Wind Turbine Control Systems
- Power System Optimization and Stability
- Asian Culture and Media Studies
- Socioeconomic Development in Asia
- Pediatric Urology and Nephrology Studies
- Diverse Approaches in Healthcare and Education Studies
- Wind Energy Research and Development
- Islanding Detection in Power Systems
- Real-time simulation and control systems
- Electric Vehicles and Infrastructure
- High-Voltage Power Transmission Systems
- Advanced Battery Technologies Research
- Kidney Stones and Urolithiasis Treatments
- Korean Peninsula Historical and Political Studies
- Neurological and metabolic disorders
- Energy Load and Power Forecasting
- Stock Market Forecasting Methods
- Solar Radiation and Photovoltaics
- Cardiovascular Conditions and Treatments
- Complex Network Analysis Techniques
Korea University
2010-2024
Korea University of International Studies
2020
Yonsei University
2019-2020
Chung-Ang University
2017
The global surge in the adoption of electric vehicles (EV) has affected distribution networks, with uncoordinated charging increasing peak load and loss. EV scheduling potential to become a business that utilizes vehicle-to-grid (V2G) technology mitigate system impacts while providing financial incentives customers. Efficient is multi-objective optimization problem simultaneously considers network customer perspectives for co-optimization. This study introduces hierarchical management...
<b><i>Background:</i></b> To investigate whether there are differences in long-term all-cause and cardiovascular mortality according to the burden of liver fibrosis or steatosis patients with ischaemic stroke transient attack (TIA). <b><i>Methods:</i></b> Consecutive acute TIA who underwent elastography (TE) from January 2014 December were considered eligible. The influence steatosis, assessed via TE, on outcomes was investigated using Cox...
To achieve the goal of carbon neutrality, increasing contribution renewable energy sources (RESs) such as solar and wind to power grids is necessary. However, existing management systems are not well-equipped handle inherent volatility RESs, previous attempts develop new have mostly been limited small scales microgrids buildings. The Korea Electrotechnology Research Institute Energy jointly developed a renewables system (RMS) for large-scale that comprises four parts: 12-h-ahead irradiance...
A new algorithm for the determination of adequate generation re-dispatch as a protective measure against voltage instability is presented in this study. The study applies method to Jeju island system Korea with frequency control by current sourced converter (CSC) high-voltage direct (HVDC) system, which regulates local active power injection from mainland system. In order transfer using CSC HVDC reactive consumption essential, and very fast. Therefore may occur if dynamic support not enough...
Abstract The global increase in the use of solar photovoltaics and wind turbines has led to a rapid penetration level inverter‐based distributed generators (IBDGs). Until recently, operation modes IBDGs under abnormal power system conditions were not major concern owing small number used systems. However, several events have indicated that momentary cessation (MC) mode an IBDG can eventually deteriorate stability Among various parameters define MC mode, direct impact recovery ramp rate on...
Renewable generation in power systems has proved to be challenging for system operators owing the increasing levels of penetration. The operation currently requires additional flexibility and reserves due intermittency unpredictability renewable generators. However, it is difficult precisely predict control stochastic nature sources; nevertheless, its capacity continues increase. To monitor generators efficiently, entire needs established a hierarchical order. This study proposed concept...
Power system clustering is an effective method for realizing voltage control and preventing failure propagation. Various approaches are used power clustering. Graph-theory-based spectral methods widely because they follow a simple approach with short calculation time. However, can only be applied in environments which the generation amount load known. Moreover, it often impossible to sufficiently reflect influence of volatile sources (e.g., renewable energy sources) To this end, study...
IMS: To evaluate long-term outcome of tamsuolsin 0.2 mg for benign prostatic hyperplasia (BPH) patients using a new subjective assessment patient-reported outcomes and the lower urinary tract symptoms (LUTS) score (LOS) over 48-week period.This study investigated either well-responded or poorly responded patient group as defined by LOS at period 12 weeks after BPH treatment. Outcome parameters used in this were most bothersome symptoms, K1-short form well International Prostate Symptom Score...
This paper examines Koreans’ response to cholera and the introduction of hygienic modernity by Japanese after opening Korea in 1876. As Korea’s first open port, Pusan became a testing ground for with influx settlers who introduced modern medical knowledge area. The science technology Japanese, through establishment facilities such as Saisei Iin, clinic Pusan, had significant impact on local community, which was suffering horrific consequences due ineffectual government management. In...
With the global consensus to achieve carbon neutral goals, power systems are experiencing a rapid increase in renewable energy sources and storage (ESS). Especially, recent development of hub substations (HS/S) equipped with ESS, applicable for resolving site constraints if implemented as mobile transformers, is expanding ESS-equipped facilities. However, these units require centralized control strategies considering variability within integrated networks. While studies on electric vehicle...
Given the rapid increase in inverter-based distributed generators (IBDGs), their response and subsequent impacts on power system stability during abnormal conditions are becoming important. Recent events have shown that an unexpected loss of IBDGs triggered by outdated frequency ride-through (FRT) capability can occur, which turn lead to a below secure operation region. As FRT characteristics dependent time installation update parameters, with different mixed within system. In this study,...
In recent years, the number of wind farms consisting type 3 and 4 turbines located within distribution system has been growing rapidly. Wind can be utilized as a continuous reactive power source to support voltage by taking advantage their control capability. This paper aims further develop assignment strategy in order minimize losses described published paper. We introduce method reconfiguration numbering apply algorithm farm structure previously-defined allocation ratio into two types...
This paper explores relations between literacy education, ideology and politics, based on an analysis of educational reforms during Soviet US military occupation in North South Korea. Following the end Second World War, anti-illiteracy campaigns two Koreas became important means political socialisation for Koreans amid ideological competition international local arenas. In both South, enthusiastically responded to campaigns, with overcrowded classes eager students all ages backgrounds. The...
When a lot of surplus power occurs in wind system, an output limit is implemented to directly or indirectly curtail the maintain balance between supply and demand system. The curtailment process large-scale farm causes loss mechanical loads. Resultantly, imbalanced curtailments often occur, resulting unilateral burdens for owners farms. Considering issue, study minimizing system plants required terms operational efficiency. This paper proposes algorithm achieve flexible control during actual...
본 논문은 개항기 조선에서 의학적 지식의 보급과 위생 개념의 변화를 통해 근대성의 수용과 위생문화의 보급을 고찰하기 위함이다. 전염병은 역사 속에서 단순한 질병이 아니라 사회 문화적인 현상이었다. 논문에서는 근대성을 막연한 두려움에서 전염병을 통제의 대상으로 여기고 위생의 제도화의 과정에서 합리적인 “의사소통 행위”의 과정을 거치게 되는 과정에 주목했다. 또한 의사소통 행위(정부기관의 대응, 신문보도)를 사람들의 전염병에 대한 지식을 수용하고 정형화된 일정한 양식을 형성하며 그 양식이 문화의 형태로 정착하게 살펴보았다. 조선의 문제를 근대적인 지식과 인식의 수용이라는 관점에서 접근하려고 했다.