Work vehicle power system with decoupled engine air system components

A power system for a work vehicle, comprising:

• an engine including one or more piston-cylinder arrangements, an intake manifold configured to receive and direct intake air into the one or more piston-cylinder arrangements for combustion to generate exhaust gas, and an exhaust manifold configured to receive the engine exhaust gas from the one or more piston-cylinder arrangements;
• an exhaust gas recirculation (EGR) system configured to receive a first portion of the engine exhaust gas, from an outlet of the exhaust manifold, to mix the first portion of the engine exhaust gas with fresh air as the intake air, and to supply the intake air into the intake manifold of the engine;
• a turbine generator in communication with the exhaust manifold and configured to be driven by a second portion of the engine exhaust gas, from another outlet of the exhaust manifold, that is different from the first portion of the exhaust gas to generate electrical power;
• a power network including at least one battery to store the electrical power generated by the turbine generator;
• and
• an electric compressor in fluid communication with the intake manifold and configured to be powered by the electrical power from the at least one battery of the power network and to compress at least a portion of the intake air for the engine.