Serial Hybrid Microgrid with PPSA-mediated interface to Genset and to Non-Dispatchable Power
A microgrid system in which power from a non-dispatchable energy source and power from a combustion-powered backup generator are both connected to the microgrid and its loads through a Power Packet Switching Architecture (PPSA) power converter. The converter provides voltage management and synchronization for both the backup generator power and also for the non-dispatchable power.
1 . A microgrid, comprising:
a power-packet-switching power converter, having one port thereof connected to a microgrid power line;
an engine-powered generator having a power output connected to a second port of the converter; and
a non-dispatchable power source connected to a third port of the converter;
wherein the engine-powered generator, when active, is allowed to vary the frequency of power at the second port over a range of at least 2% of its value, and is allowed to vary the voltage of the power output over a range of at least 10% of its value.
2 . The microgrid of claim 1 , wherein the non-dispatchable power is photovoltaic power.
3 . The microgrid of claim 1 , wherein the non-dispatchable power is wind power.
4 . The microgrid of claim 1 , wherein the AC generator includes a diesel engine.
5 . A microgrid, comprising:
a power-packet-switching power converter, having one port thereof connected to a microgrid power line;
an engine-powered generator having a power output connected to a second port of the converter;
a non-dispatchable power source connected to a third port of the converter; and
a battery bank operatively connected to the non-dispatchable power source and to the third port;
wherein the engine-powered generator, when active, is allowed to vary the frequency of power at the second port over a range of at least 2% of its value, and is allowed to vary the voltage of the power output over a range of at least 10% of its value.
6 . The microgrid of claim 5 , wherein the non-dispatchable power is photovoltaic power.
7 . The microgrid of claim 5 , wherein the non-dispatchable power is wind power.
8 . The microgrid of claim 5 , wherein the AC generator includes a diesel engine.
9 . A microgrid, comprising:
a power-packet-switching power converter, having one port thereof connected to a microgrid power line;
an engine-powered generator having a power output connected to a second port of the converter;
a non-dispatchable power source connected to a third port of the converter; and
a battery bank operatively connected to the non-dispatchable power source and to the third port.
10 . The microgrid of claim 9 , wherein the non-dispatchable power is photovoltaic power.
11 . The microgrid of claim 9 , wherein the non-dispatchable power is wind power.
12 . The microgrid of claim 9 , wherein the AC generator includes a diesel engine.
13 - 20 . (canceled)