In recent years

the penetration of renewable resources into AC power systems has increased tremendously

creating a significantly impact on the latter's operations and stability. In this respect

it is also important to gain a basic analytical understanding of such impact on the steady-state stability of power systems with electrically weak AC/DC interconnections

but such works are not very evident in the literature. Therefore

a classical analytic model of the single and multi-infeed HVDC system which now incorporates renewable resources is proposed. Then the well-established concept of voltage sensitivity of the AC/DC interconnection is applied to analyze the impact of the renewable resources on the steady-state stability of these composite system models

as well as on the influence of system conditions and parameters. This impact is also compared with that arising from other types of shunt devices alternatively connected at the same AC/DC interconnection

therefore their relative beneficial or negative impacts will also be benchmarked.