This command will re-synchronize virtual machines replication, every 10 minutes.
It does not show errors and will stop after all synchronizations are ok

$hyperviseurs = @("SRV-HPV03","SRV-HPV04");$ErrorActionPreference = "SilentlyContinue";while($true){get-vm -ComputerName $hyperviseurs|Resume-VMReplication -Resynchronize;Start-Sleep -Seconds 5;get-vm -ComputerName $hyperviseurs|Reset-VMReplicationStatistics;$repl = get-vm -ComputerName $hyperviseurs|Get-VMReplication|Where-Object Health -notlike "Normal";if($repl.Count -eq 0){exit}else{$resync = $repl|Where-Object State -like "Resynchronizing";$errors = $repl - $resync;Write-Host -NoNewline "In re-synchronize " $resync.Count;Write-Host "";Write-Host -NoNewline "Errors " $errors.Count;Write-Host "";}Start-Sleep -Seconds 600}

Here the explanation :

# Array with all the hyper-v that you want to resynchronize

$hyperviseurs = @("SRV-HPV03","SRV-HPV04");

# Don't display errors 
$ErrorActionPreference = "SilentlyContinue";

# Do infinite loop

    # Run resynchronization on all VM
    get-vm -ComputerName $hyperviseurs|Resume-VMReplication -Resynchronize;
    # Wait 5 seconds
    Start-Sleep -Seconds 5;
    # Reset replication statistics
    get-vm -ComputerName $hyperviseurs|Reset-VMReplicationStatistics;
    # Get the number of VM with different health than normal
    $repl = get-vm -ComputerName $hyperviseurs|Get-VMReplication|Where-Object Health -notlike "Normal";
    # If 0 vm with unnormal replication state

    if($repl.Count -eq 0){
        # Stop the script

        # Get number of VM in resynchronizing state and not in normal Health
        $resync = $repl|Where-Object State -like "Resynchronizing"
        # Get the number of non resynchronizing state and not in normal Health
        $errors = $repl - $resync
        Write-Host -NoNewline "In re-synchronize " $resync.Count
        Write-Host ""
        Write-Host -NoNewline "Errors " $errors.Count
        Write-Host ""


    # Wait 10 minutes
    Start-Sleep -Seconds 600;