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JP-7857222-B2 - Storage system configured for use in energy management systems

JP7857222B2JP 7857222 B2JP7857222 B2JP 7857222B2JP-7857222-B2

Inventors

  • モハンマド・チェフレガニ・ボズチャルイ

Assignees

  • エンフェーズ エナジー インコーポレイテッド

Dates

Publication Date
20260512
Application Date
20210111
Priority Date
20200110

Claims (19)

  1. A storage system configured for use in an energy management system, A single-phase AC coupled battery or a three-phase AC coupled battery, Multiple microinverters configured to connect to one or more battery cell core packs forming a local grid, The system includes a controller configured to detect when the single-phase AC coupled battery or the three-phase AC coupled battery is being charged or discharged, and to store energy when energy is abundant and make it available when energy is insufficient. A storage system comprising a controller configured to receive frequency and voltage values from a gateway, control the plurality of microinverters configured for use with the single-phase AC-coupled battery and the three-phase AC- coupled battery, and determine the charging and discharging power of the single-phase AC-coupled battery and the three-phase AC-coupled battery, respectively.
  2. The storage system according to claim 1, wherein the plurality of microinverters are field-replaceable so that the plurality of microinverters configured for use with the single-phase AC-coupled battery are further configured for use with the three-phase AC-coupled battery.
  3. The storage system according to claim 1, wherein the single-phase AC-coupled battery or the three-phase AC-coupled battery is configured to be charged or discharged at a given C-rate, and the controller is further configured to detect when to charge or discharge the single-phase AC-coupled battery or the three-phase AC-coupled battery at at least one of a predetermined hourly, daily, and monthly schedule for charging and discharging at different C-rates.
  4. The storage system according to claim 1, wherein the single-phase AC coupled battery and the three-phase AC coupled battery are lithium-ion batteries including a lithium iron phosphate battery.
  5. The aforementioned single-phase AC coupled battery has a capacity of 3.36 kWh and a rated continuous output power of 1.28 kVA. The storage system according to claim 1, comprising a three-phase AC coupled battery having a capacity of 10.08 kWh and a rated continuous output power of 3.84 kVA.
  6. The storage system according to claim 5, wherein adjacent batteries of the three-phase AC coupled battery are connected to each other via a raceway.
  7. The storage system according to claim 6, wherein the raceway comprises a body, an arm, a snap mechanism, and a pair of O-rings positioned between the snap mechanism and the arm.
  8. The storage system according to claim 1, wherein the single-phase AC-coupled battery and the three-phase AC-coupled battery are equipped with an integrated DC disconnect switch.
  9. The storage system according to claim 1, further comprising a first covering configured to surround the single-phase AC-coupled battery, or a second covering configured to surround the three-phase AC-coupled battery.
  10. The storage system according to claim 1, further comprising a first mount configured to connect to the single-phase AC-coupled battery for mounting the single-phase AC-coupled battery, or a second mount configured to connect to the three-phase AC-coupled battery for mounting the three-phase AC-coupled battery.
  11. The storage system according to claim 10, wherein each of the first and second mounts comprises a top tab, a bracket shelf, and screw holes aligned with corresponding screw holes on the tops of the single-phase AC-coupled battery and the three-phase AC-coupled battery.
  12. The storage system according to claim 1, wherein each of the single-phase AC-coupled battery and the three-phase AC-coupled battery comprises at least one LED display or a plurality of LEDs.
  13. The storage system according to claim 12, wherein each of the LED display and the plurality of LEDs is configured to display performance information, cell information of the single-phase AC-coupled battery and the three-phase AC-coupled battery, microinverter status information, guidance for technicians, and status information of the single-phase AC-coupled battery and the three-phase AC-coupled battery, including battery failure, microinverter failure, or firmware upgrade.
  14. The storage system according to claim 1, wherein the plurality of microinverters are configured to communicate with each other and with the controller via power line communication.
  15. The storage system according to claim 1, wherein the controller is configured to support wireless communication for communicating with the gateway of the energy management system.
  16. Real-time power flow based on local grid connection status. Configurable single-phase AC coupled battery and three-phase AC coupled battery profiles for optimizing at least one of self-consumption or usage time, The storage system according to claim 1, further comprising a tertiary control configured to provide a cloud interface configured to provide at least one troubleshooting function for identifying and correcting problems in the energy management system.
  17. It is an energy management system, A smart switch including an input configured to connect to one of the meter or main load panel at the service entrance, wherein the smart switch is configured to support one of the following: whole-house backup, partial-house backup, and sub-panel backup. A storage system connected to the smart switch, wherein the storage system is A single-phase AC coupled battery or a three-phase AC coupled battery, Multiple microinverters configured to connect to one or more battery cell core packs forming a local grid, A storage system including a controller configured to detect when the single-phase AC-coupled battery or the three-phase AC-coupled battery is charging or discharging, and to store energy when energy is abundant and make it available when energy is insufficient; The system comprises a smart switch or one of the main load panels, and a combiner connected to one or more solar power generation systems. An energy management system comprising a controller configured to receive frequency and voltage values from a gateway, control a plurality of microinverters configured for use with the single-phase AC-coupled battery and the three-phase AC- coupled battery, and determine the charging and discharging power of the single-phase AC-coupled battery and the three-phase AC-coupled battery, respectively.
  18. The energy management system according to claim 17, wherein the plurality of microinverters are field-replaceable so that the plurality of microinverters configured for use with the single-phase AC-coupled battery are further configured for use with the three-phase AC-coupled battery.
  19. The energy management system according to claim 17, wherein the single-phase AC coupled battery or the three-phase AC coupled battery is configured to be charged or discharged at a given C rate, and the controller is further configured to detect when to charge or discharge the single-phase AC coupled battery or the three-phase AC coupled battery at at least one of a predetermined hourly, daily, and monthly schedule for charging and discharging at different C rates.

Description

Embodiments of this disclosure generally relate to power systems, and more particularly to storage systems configured for use in energy management systems. A grid-connected photovoltaic (PV) system is a solar energy system that is connected to (i.e., coupled to) the utility electrical grid and operates when the grid is available. During a power outage, a grid-connected PV system stops generating power and remains shut down until grid power becomes available again. Homes are typically built with main panels sized for connecting to a specific amount of resource load and power company connections. This specific amount is determined by NEC Section 705 of the National Electric Code (NEC), which prevents the installation of resources exceeding the main panel's capacity. Adding new PV circuits or battery storage systems to an existing home can lead to a situation where the total amount of resources connected to the panels exceeds the main panel's limits. Conventional methods to address this main panel limitation may include: (1) installing PV circuits and storage up to the main panel's limit, which can be very limited; or (2) upgrading the main panel to a larger panel capable of accommodating more PV and storage, which may incur additional costs. This is a diagram of a backup configuration supported by an energy management system according to at least some embodiments of the present disclosure.This is a perspective view of a single-phase AC coupled battery (SP battery) and a three-phase AC coupled battery (3P battery) of an energy management system according to at least some embodiments of the present disclosure.This is a partial perspective view of an SP battery including an integrated DC disconnect switch, according to at least some embodiments of the present disclosure.This is a front view of a wall-mounting bracket for an SP battery according to at least some embodiments of the present disclosure.This is a perspective view of a wall mounting bracket for an SP battery according to at least some embodiments of the present disclosure.This is a front view of a wall-mount bracket for a 3P battery according to at least some embodiments of the present disclosure.This is a perspective view of a wall mounting bracket for a 3P battery according to at least some embodiments of the present disclosure.This is a perspective view of a raceway according to at least some embodiments of the present disclosure.Figure 6 shows a raceway installed on an adjacent SP battery, according to at least some embodiments of the present disclosure.This is a partial perspective view of an SP battery according to at least some embodiments of the present disclosure.This is a perspective view of a 3P battery without a cover and a 3P battery with a cover, according to at least some embodiments of the present disclosure.This is a diagram of an SP battery and a 3P battery, each with a cover, according to at least some embodiments of the present disclosure.This figure shows a screenshot of a cloud interface for use in an energy management system, according to at least some embodiments of the present disclosure.This is a diagram of a combiner including a gateway for an energy management system, according to at least some embodiments of the present disclosure.Various views of smart switches in energy management systems according to at least some embodiments of the present disclosure.This figure shows the installation of a circuit breaker, a lug at the main breaker location, and a breaker installed at the main breaker location of a smart switch, according to at least some embodiments of the present disclosure.This is a diagram of an electrical panel including electrical details of a smart switch, according to at least some embodiments of the present disclosure.This is a diagram of an electrical panel including electrical details of a smart switch, according to at least some embodiments of the present disclosure.This is a diagram of an electrical panel including electrical details of a smart switch, according to at least some embodiments of the present disclosure.This is a diagram of an electrical panel including electrical details of a smart switch, according to at least some embodiments of the present disclosure.This is a diagram of a mount used to mount a smart switch according to at least some embodiments of the present disclosure.This is a diagram of a bracket according to at least some embodiments of the present disclosure.This figure shows a smart switch mounted on a mounting surface using the mount of Figure 16 and the bracket of Figure 17, according to at least some embodiments of the present disclosure.This is a diagram of a backup configuration supported by an energy management system according to at least some embodiments of the present disclosure.This is a diagram of a backup configuration supported by an energy management system according to at least some embodiments of the present disclosure.This is a diagram of a backup configuration sup