Layered and zonal control based voltage regulation method of active power distribution network

• Main Authors: WANG FEI, SUN WEI, LI ZHAO, YANG SHENQUAN, WU JIAN, SUN WEN, LI KAI, FENG LIANG, ZOU GUIBIN, WU KUIHUA, ZHENG ZHIJIE, YANG BO, LIANG RONG, MENG TINGRU
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2016
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention discloses a layered and zonal control based voltage regulation method of an active power distribution network. The voltage regulation method comprises the following steps of firstly, determining an installation position of DG according to a position index L so that the maximum voltage support effect is developed by the DG; secondly, dividing voltage regulation regions of each voltage regulation device by a concept of voltage sensitivity; and finally, regulating voltage by a method of coordinative sequence control. Compared with blind determination of a DG access position, the access positions and number of the DGs are determined according to the position index, and the purpose of providing maximum voltage support by the DG can be achieved; with the adoption of a layered voltage regulation strategy, the action sequence of each voltage regulation device is determined according to VRZ where a voltage out-of-limit node is located, the action frequency of the device is reduced, and mutual influence d