珠海海上风电场与海岛微电网互联电力系统初探

A Preliminary Study of the Interconnected Power System Connecting Offshore Wind Farms and Island Micro-grids in Zhuhai

随着海上风电场和海岛微电网的快速发展,两者互联的电力系统将有越来越大的应用空间.以海上风电场和海岛微电网互联的珠海海上综合电力系统为实例,运用风电并网标准和海岛微电网运行条件,分别对综合电力系统中海上风电场的运行稳定性,海岛微电网正常和故障情况下的稳定性进行研究.结果显示,通过综合电力系统内部的能量、功率交换,两者的有功功率、无功功率、频率、电压稳定性得到提升,海岛微电网故障运行能力得到增强.

Rapid development of offshore wind farms and island micro-grids provides more room for the use of inter-connected power systems. Based on operation of such an offshore integrated power system in Zhuhai, the article looks at operational stability of the two sub-systems in accordance with grid codes for wind power integration and operating conditions for island micro- grids. In particular, operational stability of island micro-grids under both normal and fault conditions is studied. It shows the stability of the active power, reactive power, frequency and voltage of the two sub-systems has been improved, and operating capabilities of island micro-grids under fault conditions have been strengthened through exchange of energy and power within the integrated power system.