Power system control method, power system and related products
AssigneeContemporary Amperex Technology (Hong Kong) Limited
InventorsKai Wu, Nan Xu, Miaomiao Zhang, Xin Li
Life of this patent
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Abstract
A power system includes a first current conversion module and a second current conversion module, obtains, in response to a determination of obtaining electric energy from the power grid for the electric energy module, electric energy from the power grid through the first current conversion module, and release, in response to a determination of releasing electric energy from the electric energy module to the power grid, electric energy to the power grid through the first current conversion module and the second current conversion module.
Claims16
A power system control method, wherein the power system comprises a first current conversion module and a second current conversion module, a DC side of the first current conversion module and a DC side of the second current conversion module are both connected to an electric energy module, an AC side of the first current conversion module and an AC side of the second current conversion module are both connected to a power grid, and the electric energy module comprises an energy generation module and an energy storage module, the method comprising:
- obtaining energy generation status information of the energy generation module, energy storage information of the energy storage module, and demand status information of the power grid;
- making a determination of releasing electric energy from the electric energy module to the power grid, or making a determination of obtaining electric energy from the power grid for the electric energy module, according to the energy generation status information of the energy generation module, the energy storage information of the energy storage module, and the demand status information of the power grid, comprising:
- making the determination of releasing electric energy from the electric energy module to the power grid, in case where the demand status information of the power grid is that there is power demand, in response to the energy generation status information of the energy generation module being in energy-generation, and/or, the energy storage information of the energy storage module meeting a preset energy storage condition;
- and
- making the determination of obtaining electric energy from the power grid for the electric energy module, in case where the demand status information of the power grid is that there is no power demand, in response to the energy generation status information of the energy generation module being in stopped energy-generation, and the energy storage information of the energy storage module not meeting the energy storage condition;
- obtaining, in response to the determination of obtaining electric energy from the power grid for the electric energy module, electric energy from the power grid through the first current conversion module;
- and
- releasing, in response to the determination of releasing electric energy from the electric energy module to the power grid, electric energy to the power grid through the first current conversion module and the second current conversion module.
A power system, comprising:
- a first current conversion module;
- a second current conversion module;
- an energy generation module;
- an energy storage module;
- and
- a controller connected with the first current conversion module and the second current conversion module;
- wherein:
- a DC side of the first current conversion module and a DC side of the second current conversion module are both connected to an electric energy module;
- an AC side of the first current conversion module and an AC side of the second current conversion module are both connected to a power grid;
- the first current conversion module is used for obtaining electric energy from the power grid for the electric energy module;
- the first current conversion module and the second current conversion module are used for releasing electric energy from the electric energy module to the power grid;
- and
- the controller is configured to:
- obtain energy generation status information of the energy generation module, energy storage information of the energy storage module, and demand status information of the power grid;
- make a determination of releasing electric energy from the electric energy module to the power grid, or making a determination of obtaining electric energy from the power grid for the electric energy module, according to the energy generation status information of the energy generation module, the energy storage information of the energy storage module, and the demand status information of the power grid, comprising:
- making the determination of releasing electric energy from the electric energy module to the power grid, in case where the demand status information of the power grid is that there is power demand, in response to the energy generation status information of the energy generation module being in energy-generation, and/or, the energy storage information of the energy storage module meeting a preset energy storage condition;
- and
- making the determination of obtaining electric energy from the power grid for the electric energy module, in case where the demand status information of the power grid is that there is no power demand, in response to the energy generation status information of the energy generation module being in stopped energy-generation, and the energy storage information of the energy storage module not meeting the energy storage condition;
- obtain, in response to the determination of obtaining electric energy from the power grid for the electric energy module, electric energy from the power grid through the first current conversion module;
- and
- release, in response to the determination of releasing electric energy from the electric energy module to the power grid, electric energy to the power grid through the first current conversion module and the second current conversion module.
A power system control method, wherein the power system comprises a first current conversion module and a second current conversion module, a DC side of the first current conversion module and a DC side of the second current conversion module are both connected to an electric energy module, an AC side of the first current conversion module and an AC side of the second current conversion module are both connected to a power grid, the first current conversion module comprises at least one first current conversion submodule, and the second current conversion module comprises at least one second current conversion submodule, the method comprising:
- obtaining, in response to a determination of obtaining electric energy from the power grid for the electric energy module, electric energy from the power grid through the first current conversion module, comprising:
- determining at least one first target current conversion submodule from the respective first current conversion submodule, and obtaining electric energy from the power grid through the respective first target current conversion submodule;
- and
- releasing, in response to a determination of releasing electric energy from the electric energy module to the power grid, electric energy to the power grid through the first current conversion module and the second current conversion module, comprising:
- determining at least one second target current conversion submodule from the respective first current conversion submodule and the respective second current conversion submodule, and releasing electric energy to the power grid through the respective second target current conversion submodule.
Dependencies are inferred from the claim text.