Medium voltage hybrid air/liquid cooled adjustable frequency drive
An adjustable frequency drive including a number of power modules and a heat management system is provided. Each of the number of power modules includes a number of inverters. Each inverter includes a number of power poles. The heat management system includes a housing assembly, a first heat management assembly, and a second heat management assembly. The housing assembly defines a power module enclosure and a liquid cooling assembly enclosure. The first heat management assembly is substantially disposed in the power module enclosure. The second heat management assembly is not substantially disposed in the power module enclosure.
1. A heat management system for an adjustable frequency drive, said adjustable frequency drive including a number of power modules, each said power module including a number of inverters, each said inverter including a number of power poles, said heat management system comprising:
a housing assembly defining a power module enclosure and a liquid cooling assembly enclosure;
a first heat management assembly substantially disposed in said power module enclosure;
a second heat management assembly not substantially disposed in said power module enclosure;
said first heat management assembly is a convection assembly;
said second heat management assembly is a conduction with internal fluid flow assembly;
said conduction with internal fluid flow assembly includes a primary cold plate and a heat exchanger;
said primary cold plate structured to support, and be thermally coupled to, said number of power poles;
said primary cold plate including a single inlet port and a single outlet port;
said heat exchanger including an inlet port and an outlet port;
a first conduit providing fluid communication between said heat exchanger outlet port and said primary cold plate inlet port; and
a second conduit providing fluid communication between said primary cold plate outlet port and said heat exchanger inlet port.
2. The heat management system of claim 1 wherein:
said primary cold plate includes a generally planar body defining an internal passage; and
said passage in fluid communication with said inlet port and said outlet port.
3. An adjustable frequency drive comprising:
a number of power modules, each said power module including a number of inverters;
each said inverter including a number of power poles,
a heat management system including a housing assembly, a first heat management assembly, and a second heat management assembly;
said housing assembly defining a power module enclosure and a liquid cooling assembly enclosure;
said first heat management assembly substantially disposed in said power module enclosure;
said second heat management assembly not substantially disposed in said power module enclosure;
said first heat management assembly is a convection assembly;
said second heat management assembly is a conduction with internal fluid flow assembly
said conduction with internal fluid flow assembly includes a primary cold plate and a heat exchanger;
said primary cold plate structured to support, and be thermally coupled to, said number of power poles;
said primary cold plate including a single inlet port and a single outlet port;
said heat exchanger including an inlet port and an outlet port;
a first conduit providing fluid communication between said heat exchanger outlet port and said primary cold plate inlet port; and
a second conduit providing fluid communication between said primary cold plate outlet port and said heat exchanger inlet port.
4. The adjustable frequency drive of claim 3 wherein:
said primary cold plate includes a generally planar body defining an internal passage; and
said passage in fluid communication with said inlet port and said outlet port.