US 11,742,668 B2
Methods and systems for green energy charging of electrical vehicles
Sundara Raju Giridhar Bangalore, Mumbai (IN); and Rajagopalan Krishnamurthy, Cupertino, CA (US)
Assigned to Hygge Energy Inc., Cupertino, CA (US)
Filed by Hygge Energy Inc., Cupertino, CA (US)
Filed on Oct. 30, 2020, as Appl. No. 17/85,414.
Prior Publication US 2022/0140610 A1, May 5, 2022
Int. Cl. H02J 3/38 (2006.01); B60L 53/80 (2019.01); B60L 55/00 (2019.01); B60L 53/66 (2019.01); B60L 53/51 (2019.01); B60L 53/53 (2019.01); B60L 58/12 (2019.01); H04L 67/12 (2022.01); H02J 3/32 (2006.01); B60L 53/64 (2019.01)
CPC H02J 3/381 (2013.01) [B60L 53/51 (2019.02); B60L 53/53 (2019.02); B60L 53/64 (2019.02); B60L 53/665 (2019.02); B60L 53/80 (2019.02); B60L 55/00 (2019.02); B60L 58/12 (2019.02); H02J 3/322 (2020.01); H04L 67/12 (2013.01); B60L 2240/72 (2013.01); B60L 2240/80 (2013.01); B60L 2260/54 (2013.01); H02J 2300/22 (2020.01)] 23 Claims
OG exemplary drawing
 
1. A microgrid system comprising a microgrid controller, a primary dynamic storage module, a secondary storage guidance module, a solar predictor module, system behavior module and an EV predictor module;
the microgrid controller configured to receive a plurality of input energy sources, the input energy sources comprise a grid source; a generator source; a first battery, a second battery and one or more renewable energy sources;
wherein the microgrid controller is configured to direct output power from the grid source, the generator source and the one or more renewable energy sources to: the battery for charging the battery;
wherein the microgrid controller is configured to direct power to a site load and an EV charging service by a blend of the one or more renewable energy sources, the first battery, the grid source, and the generator source;
wherein the primary dynamic storage module is configured to determine when and from which of the plurality of input energy sources is used to charge the first battery, using as input: the EV predictor module based on EV charging daily load patterns and historical EV daily arrival patterns to preferentially consume energy from a cheapest source possible of the plurality of input energy sources;
wherein the microgrid controller is configured to provide guidance on when the second battery is connected as input based on the primary dynamic storage module to increase capacity;
wherein the second battery is detachable from the microgrid system;
wherein the secondary storage guidance module is configured to predict second battery specifics selected from at least one of:
how many times a day to use the second battery;
a time of day when to use the second battery; and
a storage capacity of the second battery; and
wherein the secondary storage guidance module using as input:
the EV predictor module output;
the solar predictor module output based on one or more of a location-based historical photovoltaic model, local weather prediction, short-term historical solar production data, historical geographic records for solar illumination, local climatic conditions, seasonal adjustments, and site specific performance history; and
the system behavior module output based on a historical effectiveness of storage at a given site for a given system sizing; site load patterns; and EV charging load patterns.