Voltage Collapse Assessment in Developing Countries EHV Cross-Boundary Interconnection: A Case Study

The development of the Lufubu Hydropower Cascade Project in Zambia comprises three cascade plants totalling 326 MW (Phase 2). The project is being promoted by the Lufubu Power Company (LPC) a private Zambian company which, with the support of consulting engineers Studio Pietrangeli (SP) that developed the design and the environmental and social impact assessments (ESIA), and the transaction advisors Fieldstone South Africa. The paper presents the main technical features of the project, its interconnection to the national grid as well as methodology and results of the voltage stability analysis, performed in CYME PSAF environment, of the Zambian power system with the target year 2030. The study is part of the feasibility design for the Lufubu Hydropower Cascade project development, carried out by SP, with the scope of assessing system operation behaviour synchronously interconnected with the neighbouring countries as the DR Congo, Tanzania, Malawi, Mozambique, Namibia, Angola, Zimbabwe and within the South African Power Pool (SAPP).