There are 27 block producers(i.e. super representative) in the TRON network.
Any account can apply to become a super representative candidate. Every account can vote for super representative candidates. The top 27 candidates with the most votes are the super representatives, and the 28th to 127th are super partners. Super representatives generate blocks, package transactions and get block and voting rewards. SRs have the right to participate in the voting of TRON network parameters proposals. The 100 super partners can be awarded according to their voting rate.