Off-grid type microgrid energy management method for battery containing sodium and sulfur

• Main Authors: LI GUANJUN, FANG CHEN, LING PING, WANG HAOJING, TAO YIBIN, ZHOU CHEN, YANG BO, YU HAOJIE, ZHANG YU, XIE WEI
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2017
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses an off-grid type microgrid energy management method for a battery containing sodium and sulfur. According to the method, mainly through a difference value result between a distributed new energy generating capacity and load energy consumption in a microgrid system, and through a combination with an energy management strategy flow chart, allocation power of an energy storage unit at various conditions is given. Charging control and discharging control is performed according a power algorithm of the method, charging for an important load in the system is guaranteed, an electricity demand of a non-important load is satisfied on the basis of the important load power supply, and the utilization rate of distributed new energy is improved. 本发明公开了种含钠硫电池的离网型微网能量管理方法，它主要是通过微网系统内分布式新能源发电量和负荷消耗能量的差值结果，结合能量管理策略流程图，给出各种情况下储能单元的分配功率，按照本发明功率算法进行充放电控制，保证系统内重要负荷供电，在重要负荷供电基础上满足非重要负荷用电需求，同时提高了分布式新能源利用率。