Integrated generator for screed plate heat up

The present invention relates to a paving machine (10) for laying a mat (26) of paving material on a paving surface (12), which includes a generator (66), such as a switched reluctance generator (66), integrally installed with a pump drive (64) and operatively connected to an output shaft (62) of a power source (16) of the paving machine (10). The generator (66) outputs AC power to a power converter (68) that in turn outputs DC power for a plurality of screed heating elements (60) to produce heat to warm a screed (22). The paving machine (10) may also include an insulation monitoring system (90) for determining the occurrences of ground faults in the electrical components (44) by comparing current levels in the components (44) to a predetermined maximum current level. A controller of the paving machine (10) may monitor the temperature of the generator (66) and produce the speed of the power source (16) to prevent overheating.