公开(公告)号：US10564612B2

公开(公告)日：2020-02-18

申请号：US15635754

申请日：2017-06-28

Applicant: Johnson Controls Technology Company

Inventor： Nishith R. Patel ,  Matthew J. Ellis ,  Michael J. Wenzel ,  Robert D. Turney ,  Brett M. Lenhardt

IPC: G05D7/00 ,  G05D11/00 ,  G05B13/04 ,  F24F11/62 ,  F24F11/30 ,  G05D7/06 ,  F24F11/46

Abstract: A model predictive control system is used to optimize energy cost in a variable refrigerant flow (VRF) system. The VRF system includes an outdoor subsystem and a plurality of indoor subsystems. The model predictive control system includes a high-level model predictive controller (MPC) and a plurality of low-level indoor MPCs. The high-level MPC performs a high-level optimization to generate an optimal indoor subsystem load profile for each of the plurality of indoor subsystems. The optimal indoor subsystem load profiles optimize energy cost. Each of the low-level indoor MPCs performs a low-level optimization to generate optimal indoor setpoints for one or more indoor VRF units of the corresponding indoor subsystem. The indoor setpoints can include temperature setpoints and/or refrigerant flow setpoints for the indoor VRF units.

公开(公告)号：US20170104343A1

公开(公告)日：2017-04-13

申请号：US15247873

申请日：2016-08-25

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. ElBsat ,  Michael J. Wenzel ,  Brett M. Lenhardt

IPC: H02J7/00 ,  G01R31/36 ,  H02J7/35 ,  H02S50/00 ,  H02J3/38

Abstract: A predictive power control system includes a battery configured to store and discharge electric power, a battery power inverter configured to control an amount of the electric power stored or discharged from the battery, and a controller. The controller is configured to predict a power output of a photovoltaic field and use the predicted power output of the photovoltaic field to determine a setpoint for the battery power inverter.

公开(公告)号：US20170104336A1

公开(公告)日：2017-04-13

申请号：US15247880

申请日：2016-08-25

Applicant: Johnson Controls Technology Company

Inventor： Mohammad N. ElBsat ,  Michael J. Wenzel ,  Brett M. Lenhardt

IPC: H02J3/38 ,  H02J7/00 ,  H02M7/44

CPC classification number: H02J3/383 ,  H02J3/32 ,  H02J7/0068 ,  H02J7/35 ,  H02M7/44 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E70/30

Abstract: A power control system includes a battery, a battery power inverter configured to control an amount of the electric power stored or discharged from the battery, a photovoltaic power inverter configured to control a power output of a photovoltaic field, and a controller. The power outputs of the battery power inverter and the photovoltaic power inverter combine at a point of interconnection. The controller adjusts a setpoint for the photovoltaic power inverter in response to a determination that the total power at the point of interconnection exceeds a point of interconnection power limit.

公开(公告)号：US20170104332A1

公开(公告)日：2017-04-13

申请号：US15247793

申请日：2016-08-25

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Brett M. Lenhardt ,  Kirk H. Drees

IPC: H02J3/32 ,  H02J3/38 ,  G01R31/36 ,  H02J7/00

CPC classification number: H02J3/32 ,  G01R31/3651 ,  G01R31/3679 ,  G01R31/44 ,  H02J3/383 ,  H02J7/0068 ,  H02J2003/007 ,  Y02E60/76 ,  Y04S40/22

Abstract: An electrical energy storage system includes a battery configured to store and discharge electric power to an energy grid, a power inverter configured to use battery power setpoints to control an amount of the electric power stored or discharged from the battery, the battery power setpoints comprising at least one of frequency regulation power setpoints and ramp rate control power setpoints, and a controller. The controller is configured to use a battery life model to generate the battery power setpoints for the power inverter. The battery life model includes one or more variables that depend on the battery power setpoints.

公开(公告)号：US20170102434A1

公开(公告)日：2017-04-13

申请号：US15247784

申请日：2016-08-25

Applicant: Johnson Controls Technology Company

Inventor： Michael J. Wenzel ,  Brett M. Lenhardt ,  Kirk H. Drees

IPC: G01R31/36 ,  G06Q30/02 ,  H02J7/00 ,  G06Q50/06 ,  H02J3/32 ,  H02J3/38

CPC classification number: G01R31/3651 ,  G01R31/3679 ,  G06Q30/0283 ,  G06Q50/06 ,  H02J3/32 ,  H02J3/383 ,  H02J7/0068 ,  H02J2003/003 ,  H02J2003/007 ,  Y02E40/76 ,  Y02E60/76 ,  Y04S10/545 ,  Y04S40/22 ,  Y04S50/14

Abstract: An electrical energy storage system includes a battery configured to store and discharge electric power to an energy grid, a power inverter configured to use battery power setpoints to control an amount of the electric power stored or discharged from the battery, and a controller. The controller is configured to generate optimal values for the battery power setpoints as a function of both an estimated amount of battery degradation and an estimated amount of frequency response revenue that will result from the battery power setpoints.