An REPP (100) may include a renewable energy source RES (135), a first meter (120) associated with a first load (130), a second meter (150) associated with a second load (155), a first ESS (110) electrically coupled to the RES and the first meter, a second ESS (165) electrically coupled to the RES and the first meter through a switch, and a controller (105) configured to set a first charge/discharge for the first ESS and a second charge/discharge for the second ESS such that the REPP delivers power to the first load longer than the RES produces power, in response to a trigger condition, actuate the switch such that the second ESS is electrically coupled to the second meter, and set a fourth charge/discharge for the second ESS such that the second ESS maintains a portion of its charge in reserve for the second load.
A counter-solar power plant may include a controller configured to execute instructions stored in a memory, the instructions including operations to recei ve data associated with power outputs of a plurality of legacy solar-only resources (LSORs), determine an estimated power output of the plurality' of LSORs based on the received data, obtain a target power delivery profile of the plurality of LSORs, the target power delivery profile including a plurality of target power outputs, determine an output of a CSPP renewable energy system (RES) and a charge/discharge of a CSPP energy storage system (ESS) such that a combined output of the CSPP and the estimated power output of the plurality' of LSORs satisfies at least one of the plurality of target power outputs of the target povrer delivery profile, and control the CSPP RES and CSPP ESS according to the determined CSPP RES output and CSPP ESS charge/discharge.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
3.
SYSTEMS AND METHODS FOR OFFSETTING NO LOAD ENERGY LOSSES OF A BATTERY ENERGY STORAGE SYSTEM
The present disclosure provides systems and methods for offsetting parasitic energy losses of a battery energy storage system (BESS). A method may include determining, by one or more processors of a renewable energy power plant coupled to an energy grid, a condition is satisfied, and responsive to the determination, adjusting, by the one or more processors, a state of a switch from a first state configured to couple a second BESS with a renewable energy source (RES) to a second state configured to couple the second BESS with the BESS. The RES configured to charge the T-BESS when the switch is in the first state and the T-BESS configured to send energy to the devices to satisfy energy requirements of the devices when the switch is in the second state.
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
An add-on renewable power plant (ARPP) may include a renewable energy source (RES) connected to a legacy renewable power plant (LRPP) interconnection infrastructure, where an output capacity of the RES is sized based on an LRPP transmission capacity and an LRPP power output profile, and an energy storage system (ESS) connected to the LRPP interconnection infrastructure, where a storage capacity of the ESS is sized based on the LRPP transmission capacity and the LRPP power output profile. The ARPP may also include a controller configured to control an ARPP output by controlling an RES output and an ESS charge/discharge such that a variability of an ARPP-LRPP combined power output has a lower variability than a variability of an LRPP output and control the ARPP output such that the ARPP-LRPP combined power output does not exceed a transmission capacity of the LRPP interconnection infrastructure.
An illustrative embodiment disclosed herein is method for power distribution optimization. In some embodiments, the method includes determining an efficiency for each power block of a plurality of power blocks of a power distribution optimization system, determining a characteristic for each power block, determining a power to provide, selecting a first percentage of the power that a first power block is to provide and a second percentage of the power that a second power block is to provide at least based on the efficiency for each power block, the characteristic for each power block, and the power to provide, wherein the first percentage of the power is greater than the second percentage of the power, and sending a dispatch command to cause the first power block to provide the first percentage of the power and the second power block to provide the second percentage of the power.
The present disclosure provides systems and methods for managing a temperature of a battery energy storage system ("BESS"). A method may comprise obtaining a charge/ discharge schedule for a battery energy storage system (BESS) for a first time period; identifying, from the charge/ discharge schedule, a charge or discharge time period of the BESS within the first time period; calculating a beginning time of a temperature control time period in which equipment operates to control a temperature of the BESS to reach a target temperature by a beginning time of the charge or discharge time period; and controlling the equipment operating to control the temperature of the BESS for the temperature control time period such that the temperature of the BESS reaches the target temperature by the beginning time of the charge or discharge time period.
A method may include obtaining irradiance data at a first time and a second time from sensors, determining whether one or more solar modules of a plurality of networked power plants will be covered by a shadow or shade at a third time based on the irradiance data, and generating, based on the determination, a power output prediction for each power plant of the networked power plants at the third time. The method may further include receiving power delivery profiles for first and second loads, adjusting a power output of one or more power plants of the networked power plants based at least in part on the power output prediction and the power delivery profiles for the first and second loads, and allocating a combined power output of the power plants to the first and second loads based on first and second load reliability thresholds.
A method for delivering power to a grid. The method may include receiving a prediction of power generation for a renewable energy source (RES), receiving power level requirements of the grid, and receiving length of power delivery requirements of the grid. The method may further include determining a power delivery limit based on the prediction of power generation, the power level requirements, and the length of power delivery requirements. The method may further include delivering power to the grid according to the power delivery limit from the RES and an energy storage system (ESS) electrically coupled to the RES.
A method of adjusting energy delivered by a renewable energy system to an electrical grid and an energy-consuming load is disclosed. The method may comprise determining a production schedule of a renewable energy system (RES) and establishing a prioritization order between the electrical grid and the energy-consuming load. The method may further comprise setting a power receiving threshold for the electrical grid or the energy-consuming load based on the prioritization order, and adjusting the energy delivered by the RES by controlling a first amount of energy delivered to the electrical grid and a second amount of energy delivered to the energy-consuming load. A variability schedule of at least one of the first amount of energy or the second amount of energy can be amplified or dampened over a time period relative to the natural variability energy production schedule of the RES.
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
10.
TARGET FUNCTION PRIORITIZATION OF CONTROL MODES FOR RENEWABLE ELECTRIC GENERATION RESOURCE AND CHARGE STORAGE DEVICE
The present disclosure describes a method of operating a power plant, comprising: obtaining an energy production forecast for a forecast period; generating a plurality of simulation results associated with simulated operation of the power plant for the forecast period, wherein the plurality of simulation results are generated by simulating operation of the power plant using a plurality of control algorithms; assigning a score to each of the plurality of control algorithms based on the generated plurality of simulation results; selecting a control algorithm from the plurality of control algorithms for the forecast period based on the assigned score for the control algorithm; and operating the power plant in accordance with the control algorithm for a duration of the forecast period.
The present disclosure provides systems and methods for serving two or more uncorrelated loads connected to a renewable energy powerplant. The uncorrelated loads comprise a power grid and one or more industrial processes. A system may comprise a renewable energy system (RES), an energy storage system (ESS), and a controller programmed to: discretize an upcoming forecast horizon into a plurality of time periods; calculate one or more metrics for sending energy generated by the first RES to: (1) the ESS, (2) the power grid, and (3) the one or more industrial processes; prioritize the: (1) ESS, (2) power grid, and (3) one or more industrial processes.
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
12.
METHODS AND SYSTEMS FOR AUTOMATIC GENERATION CONTROL OF RENEWABLE ENERGY RESOURCES
The present disclosure provides systems and methods for an operation of an electric power plant comprising a renewable energy resource and an energy storage device. The method may comprise determining, at a first time, a forecast of predicted energy production by the electric power plant over a time period subsequent to the first time based on a forecast for the time period; detecting a current state of charge of the energy storage device; calculating a range of automatic generation controls the electric power plant is capable of satisfying for the time period based on the forecast of predicted energy production and the detected current state of charge of the energy storage device; and signaling, from the electric power plant to a central utility controlling a power grid, the range of automatic generation controls the electric power plant is capable of satisfying for the time period.
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
13.
SYSTEMS AND METHODS FOR IMPROVED BATTERY ENERGY STORAGE SYSTEM THERMAL MANAGEMENT
The present disclosure provides systems and methods for managing a temperature of a battery energy storage system ("BESS"). A method may comprise identifying operating temperature limitations of the BESS; obtaining a forecast horizon comprising a forecast of external environmental conditions for a time period; identifying a charging/ discharging schedule of the BESS; simulating operation of the BESS for the time period for each of a plurality of sequences of thermal management modes according to the charging/ discharging schedule and the forecast horizon, the simulating generating an energy consumption and an operating temperature forecast of for each of the plurality of sequences of thermal management modes; selecting a sequence of thermal management modes of the plurality of sequences; and operating the equipment according to the selected sequence of thermal management modes.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 10/633 - Control systems characterised by algorithms, flow charts, software details or the like
H01M 10/635 - Control systems based on ambient temperature
H01M 10/627 - Stationary installations, e.g. power plant buffering or backup power supplies
14.
SYSTEMS AND METHODS FOR FLEXIBLE RENEWABLE ENERGY POWER GENERATION
The present disclosure provides systems and methods for flexible renewable energy power generation. The present disclosure also provides systems and methods for firming power generation from multiple renewable energy sources.
An integrated renewable energy source (RES) and energy storage system (ESS) facility configured to supply power to an AC electric grid includes energy storage system capacity and inverter capacity that are larger than a point of grid interconnect (POGI) limit for the facility, enabling high capacity factors and production profiles that match a desired load. At least one first DC-AC power inverter is associated with RES, and at least one second AC-DC power inverter is associated with the ESS. AC-DC conversion is used when charging the ESS with RES AC electric power, and DC-AC conversion utility is used when discharging ESS AC electric power to the electric grid. Aggregate DC-AC inverter utility exceeds the facility POGI limit, and excess RES AC electric power may be diverted to the second inverter(s).
Methods for controlling an integrated renewable energy source (RES) and energy storage system (ESS) of a RES-ESS facility having a point of grid interconnect (POGI) limit are provided. A forecast for energy production of the RES as well as a state of charge (SOC) schedule are used to calculate a SOC target-based POGI cap that is less than the POGI limit, with the SOC target-based POGI cap representing as low a peak power output value as possible while still ensuring satisfaction of the SOC schedule. The forecasted RES production, SOC schedule, and SOC target-based POGI cap are used to generate a time-varying charge/discharge control signal for the ESS that ensures the SOC schedule is satisfied.
H02J 1/12 - Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
17.
METHOD FOR IMPLEMENTING POWER DELIVERY TRANSACTION FOR POTENTIAL ELECTRICAL OUTPUT OF INTEGRATED RENEWABLE ENERGY SOURCE AND ENERGY STORAGE SYSTEM FACILITY
Methods for implementing power delivery transactions between a buyer and a seller of electrical energy supplied to an electric grid by an integrated renewable energy source (RES) and energy storage system (ESS) of a RES-ESS facility are provided. Estimated total potential output of the RES is compared to a point of grid interconnect (POGI) limit to identify potential RES overgeneration, and the buyer is charged if potential RES overgeneration is less than potential overgeneration during one or more retrospective time windows. The method provides a basis for the RES-ESS facility owner to be paid for an estimated amount of energy that did not get stored as a result of a grid operator not fully discharging an ESS prior to the start of a new day.
G05B 15/02 - Systems controlled by a computer electric
H02J 3/14 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
H02J 3/28 - Arrangements for balancing the load in a network by storage of energy
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
18.
COORDINATED CONTROL OF RENEWABLE ELECTRIC GENERATION RESOURCE AND CHARGE STORAGE DEVICE
A method for coordinated control of a renewable electrical energy source (RES) and an electrical energy storage (EES) device utilizes a time-dependent forecast of electrical energy production by the RES and a state of charge (SOC) schedule for the EES including at least one SOC target value. A time-varying charge/discharge control signal is configured to ensure that the SOC schedule is satisfied by charging at a rate necessary to meet the SOC target value, while periodically updating the generation of the charge/discharge control signal based upon an updated time-dependent forecast of electrical energy production and/or an updated SOC schedule. A configurable refresh period may be used to limit updates of the time-varying control signal including computation and use of a new basepoint value for aggregated energy supplied from the RES-ESS facility to an electrical grid.
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
patents
