AN ENERGY STORAGE SYSTEM USING BIDIRECTIONAL PWM INVERTER

申请公布号：KR20140119531(A)

申请号：KR20130035333

申请日期：2013.04.01

申请公布日期：2014.10.10

申请人：

KONGJU NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

发明人：KIM, HYO SUNG

分类号：H02J9/06;H01M10/44;H02J7/00

主分类号：H02J9/06

摘要：Disclosed is an energy storage system using bidirectional PWM inverters to solve a cell imbalance problem without a cell balancing circuit in a battery cell, easily monitor a fault in the battery cell, improve a service life of a battery, and reduce maintenance costs of the battery. The energy storage system using bidirectional PWM inverters comprises multiple battery packs, each of which includes a predetermined number of battery cells which are connected in series; multiple bidirectional PWM inverters respectively connected to the battery packs, converting DC power received from the battery packs into AC power, and converting AC power into DC power to provide the DC power for the battery packs; and a matching transformer changing a level of voltage of AC power received from the multiple bidirectional PWM inverters and providing the same for a grid or a load, and changing a level of voltage of AC power received from the grid and providing the same to each of the multiple bidirectional PWM inverters.

ABSORBING PRODUCTS WITH MOISTURE SENSORS

HINGE-FREE FLUID OR GAS JET SPRAYER

COMMUNICATION DEVICE AND METHOD, PROGRAMME, INFORMATION MANAGEMENT DEVICE AND COMMUNICATION SYSTEM

БУРОВОЕ ДОЛОТО ДЛЯ УДАРНОГО БУРЕНИЯ ГОРНОЙ ПОРОДЫ

TORQUE SPANNER

HIGH-QUALITY INSTANT DIAGNOSTIC TECHNIQUE FOR MALIGNANT GROWTH OF PAROTID SALIVARY GLAND BY PATIENT'S BLOOD SERUM AND ORAL FLUID BIOMARKERS

WITHDRAWAL OF CARRIER ROCKET STAGE SEPARATED PART FROM PAYLOAD ORBIT AND DEVICE TO THIS END

ACTIVE CURRENT MEASURING DEVICE

COOLED TURBINE

SYSTEMS AND METHODS OF OPERATION OF NUMBER OF WELLS THROUGH ONE BORE

METHOD FOR OUTPATIENT REHABILITATION TREATMENT OF PATIENTS WITH ISCHEMIC HEART DISEASE FOLLOWING CARDIAC SURGERY

METHOD FOR TORQUE STABILISATION IN DRIVELINE OF AGGREGATE MAKING ANGULAR OSCILLATIONS AROUND DRIVING SHAFT, AND DEVICE FOR ITS IMPLEMENTATION

METHOD FOR ADAPTATION OF REFLECTING ANTENNA SURFACES

RADAR SYSTEM FOR MONITORING NEAR-EARTH SPACE

INCREASING MEAN-TRAJECTORY SPECIFIC THRUST PULSE OF LIQUID-PROPELLANT ROCKET ENGINE AND LIQUID-PROPELLANT ROCKET ENGINE TO THIS END

METHOD OF FORECAST AND SEARCH OF HYDROCARBON DEPOSITS IN TRAPS OF ANTICLINAL TYPE BY TOPOGRAPHIC MAPS OF DAY SURFACE

FIBROUS COMPOSITE AND METHOD OF ITS PRODUCTION

EMBOLISM TEMPORARY PROTECTOR AND MEDICAL PROCEDURE FOR IMPLANTATION THEREOF

СПОСОБ И УСТРОЙСТВО ДЛЯ ВОСПРОИЗВЕДЕНИЯ СТЕРЕОФОНИЧЕСКОГО ЗВУКА

РЕАКТОР ДЛЯ ПРОВЕДЕНИЯ ГАЗОЖИДКОСТНЫХ ДВУХФАЗНЫХ РЕАКЦИЙ