  A search for new supernova remnants (SNRs) has been conducted using TeV
gamma-ray data from the H.E.S.S. Galactic plane survey. As an identification
criterion, shell morphologies that are characteristic for known resolved TeV
SNRs have been used. Three new SNR candidates were identified in the H.E.S.S.
data set with this method. Extensive multiwavelength searches for counterparts
were conducted. A radio SNR candidate has been identified to be a counterpart
to HESS J1534-571. The TeV source is therefore classified as a SNR. For the
other two sources, HESS J1614-518 and HESS J1912+101, no identifying
counterparts have been found, thus they remain SNR candidates for the time
being. TeV-emitting SNRs are key objects in the context of identifying the
accelerators of Galactic cosmic rays. The TeV emission of the relativistic
particles in the new sources is examined in view of possible leptonic and
hadronic emission scenarios, taking the current multiwavelength knowledge into
account.
