CAJ | 학술논문

针对传统的基于单个V/f电源的主从控制策略受主控电源容量限制的缺陷，提出了一种适用于孤网运行状态的新的微电网主从控制策略，即以V/f控制的微电源为核心的多主电源控制方法，在微电网中可设置多个此类电源。该控制策略不需要通讯，可自行按照预设的裕度相互配合运行，并达到较好的自适应能力。利用Matlab/Simulink软件进行仿真验证，结果证明了提出的微电网控制策略是正确的和可行的，在并网和孤岛运行时都具有良好的运行特性，为微电网运行控制提供了有效的途径。
침대전통적기우단개V/f전원적주종공제책략수주공전원용량한제적결함，제출료일충괄용우고망운행상태적신적미전망주종공제책략，즉이V/f공제적미전원위핵심적다주전원공제방법，재미전망중가설치다개차류전원。해공제책략불수요통신，가자행안조예설적유도상호배합운행，병체도교호적자괄응능력。이용Matlab/Simulink연건진행방진험증，결과증명료제출적미전망공제책략시정학적화가행적，재병망화고도운행시도구유량호적운행특성，위미전망운행공제제공료유효적도경。
According to the shortcoming of the limited capacity of the master power in the master-slave micro-grid system based on single V/f source, a new master-slave control strategy is presented for isolated power grid operation in the micro-grid. The new strategy uses multiple main power sources based on the core of micro-sources using V/f controllers, and more than one such power source can operate in the micro-grid. The new strategy can operate by itself automatically according to the default margin without telecommunication and it has the adaptive ability to large amount of power change. Matlab/Simulink software is used for simulation and verification, and the correctness and feasibility are verified by the simulation results. The microgrid has good operating characteristics in both grid-connected and islanded operation modes under the proposed strategy. The model provides an effective way for further research on micro-grid operation control.