Power control for hybrid power plant
A hybrid power and power technology, applied in general control systems, circuit devices, computer control, etc., can solve problems such as grid voltage oscillation, non-compliance with grid requirements, grid instability, etc.
Pending Publication Date: 2020-08-07
VESTAS WIND SYST AS
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Problems solved by technology
Therefore, it is possible that the full capacity of each type of generator is not fully utilized and in some cases may result in non-compliance with grid requirements
[0005] In extreme cases, a fixed response has the potential to cause problematic oscillations in grid voltage or cause other instabilities in the grid
Method used
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[0034] figure 1 A typical architecture is shown, where a hybrid power plant (HPP) is connected to the main transmission grid as part of a wider power network and includes three sub-plants: a battery storage system, a photovoltaic generator and a wind turbine generator. figure 2 The same exemplary setup is used in . As the skilled reader will appreciate, a HPP is a power device capable of generating electrical energy from at least two different renewable energy sources. Accordingly, the examples shown in the figures are representative only, and the skilled reader will appreciate that other specific architectures for the HPP are possible. For example, it is possible to incorporate more than three sub-devices into the HPP, or the HPP may only comprise two sub-devices.
[0035] Furthermore, the skilled reader will understand that the subassemblies forming the HPP may be formed from a single generator. Thus, since a subunit can include a single generator and a hybrid powerplant...
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A method of controlling a hybrid power plant connected to a power network is disclosed, the hybrid power plant having a first renewable energy generator and a second renewable energy generator, the first renewable energy generator being configured to generate power using a different source of renewable energy to the second renewable energy generator. The method comprises: determining a target plant power output for the hybrid power plant; determining a target generator power output for each of the first and second generators based on the target plant power output; determining a respective ramprate for each of the first and second renewable energy generators based, at least in part, on an attribute of the respective renewable energy generator; and operating each of the first and second renewable energy generators to change its power output to the power network at the determined ramp rate to achieve the target generator power output.
Description
technical field [0001] The present disclosure relates to methods of controlling real and reactive power in a hybrid power plant. Aspects of the invention relate to a power plant controller for a hybrid power plant and a hybrid power plant. Background technique [0002] To maximize their power generation potential, it is becoming increasingly common for power producers to combine power storage systems and different types of renewable energy generators to form hybrid power plants. For example, a hybrid power plant may typically include a wind turbine generator, a photovoltaic generator, and a battery storage system. In order to interact with the power grid or power grid, the different types of generators within a hybrid power plant will operate as one, and it is desirable to have a single point of interconnection (PoI) connecting the generators to the grid and the plant as a whole to comply with the requirements set by the grid. Grid requirements specified by the operator. ...
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IPC IPC(8): H02J3/38H02J3/32H02J3/48H02J3/50
CPCH02J3/32H02J3/48H02J3/50H02J3/38H02J2300/28H02J2300/20H02J3/381H02J3/466H02J2300/24H02J13/00002G05B15/02H02J3/46
Inventor M·古普塔R·库玛尔J·斯瓦斯卡兰
Owner VESTAS WIND SYST AS