EVALUATION METHOD and SYSTEM OF POWER NETWORK RELIABILITY

• Main Authors: KO BAEK KYEONG, HAN SE KYUNG, NAM SU CHUL, KIM YONG HAK, KANG SUNG BUM
• Format: Patent
• Language: English; Korean
• Published: 30.03.2021
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

The present invention provides a method for evaluating reliability of a power grid based on a frequency variation model which can quickly and accurately monitor the power grid having renewable energy. The method for evaluating reliability of a power grid based on a frequency variation model comprises the steps of: constructing a power grid model; configuring a scenario for power operation for a predetermined period; estimating a frequency change of power in the scenario; and performing reliability evaluation based on the frequency change and determining that an evaluation result is reliable if the evaluation result exceeds a reference value. 본 발명의 주파수 변동 모델 기반 전력망 신뢰도 평가 방법은, 전력망 모델을 구성하는 단계; 소정 기간의 전력 운용에 대한 시나리오를 구성하는 단계; 상기 시나리오상에서 전력의 주파수 변화를 추정하는 단계; 및 상기 주파수 변화에 의한 신뢰도 평가를 수행하여 그 평가 결과가 기준치를 넘으면 신뢰할 수 있는 것으로 판정하는 단계를 포함할 수 있다.