Systems and methods for enhanced reactive power management in a hybrid environment

    公开(公告)号:US11387652B2

    公开(公告)日:2022-07-12

    申请号:US16824569

    申请日:2020-03-19

    Abstract: A system for controlling a hybrid power generation plant is provided. The system is programmed to receive current conditions at the plurality of power generating assets including a first asset type and a second asset type, determine a forecast for a period of time based at least in part on the current conditions, determine that a first asset of the first asset type of the plurality of power generating assets has an available uprate margin for production of a first amount of active power, determine that a second asset of the second asset type of the plurality of power generating assets has capacity to generate a second amount of reactive power, instruct the first asset to reduce production of reactive power by the second amount and increase production of active power by the first amount, and instruct the second asset to increase production of reactive power by the second amount.

    Electrical power systems having a cluster transformer with multiple primary windings

    公开(公告)号:US10931115B1

    公开(公告)日:2021-02-23

    申请号:US16587413

    申请日:2019-09-30

    Abstract: An electrical power system connectable to a power grid includes at least one cluster of electrical power subsystems. Each of the electrical power subsystems includes a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The electrical power system also includes a single cluster transformer connecting the at least one cluster of the electrical power subsystems to the power grid. The single cluster transformer includes a plurality of low-voltage (LV) primary windings and at least one medium-voltage/high-voltage secondary (MV/HV) winding.

    OVER VOLTAGE PROTECTION FOR A WIRELESS POWER TRANSFER SYSTEM

    公开(公告)号:US20200287375A1

    公开(公告)日:2020-09-10

    申请号:US16884338

    申请日:2020-05-27

    Abstract: A wireless power transfer system is disclosed. The wireless power transfer system includes a first converting unit configured to convert a first DC voltage of an input power to an AC voltage. Further, the wireless power transfer system includes a contactless power transfer unit configured to transmit the input power having the AC voltage. Also, the wireless power transfer system includes a second converting unit configured to convert the AC voltage to a second DC voltage and transmit the input power having the second DC voltage to an electric load. Additionally, the wireless power transfer system includes a switching unit configured to decouple the electric load from the contactless power transfer unit if the second DC voltage across the electric load is greater than a first threshold value.

    ACTIVE VOLTAGE REGULATOR SYSTEMS AND METHODS

    公开(公告)号:US20170366100A1

    公开(公告)日:2017-12-21

    申请号:US15188761

    申请日:2016-06-21

    CPC classification number: H02M7/217 B60R16/02 G08B21/182 H02M7/06 H02M7/066

    Abstract: A power conditioning unit used in an electrical system. The power conditioning unit includes a positive bus and a negative bus that are electrically connected to a direct current load to enable supplying direct current electrical power to the direct current load; and a first phase leg, which includes a first diode electrically connected to the positive bus, a first transistor electrically connected to the negative bus, and a first node between the first diode and the first transistor. The first node is electrically connected to an alternating current power source to enable the first phase leg to receive a first phase of alternating current electrical power from the alternating current power source and the first transistor opens and closes to control flow of the first phase through the first phase leg to facilitate generating the direct current electrical power at a target voltage using the alternating current electrical power.

    Method and system for controlling integration of DC power source in hybrid power generation system

    公开(公告)号:US11223208B2

    公开(公告)日:2022-01-11

    申请号:US16640414

    申请日:2017-08-21

    Abstract: A hybrid power generation system is presented. The hybrid power generation system includes a generator operable via a prime mover and configured to generate an alternating current (AC) power. The hybrid power generation system further includes a first power converter electrically coupled to the generator, where the first power converter includes a direct current (DC) link. Furthermore, the hybrid power generation system includes a DC power source configured to be coupled to the DC-link. Moreover, the hybrid power generation system also includes a second power converter. Additionally, the hybrid power generation system includes an integration control sub-system operatively coupled to the first power converter and the DC power source. The integration control sub-system includes at least one bypass switch disposed between the DC power source and the DC-link and configured to connect the DC power source to the DC-link via the second power converter or bypass the second power converter.

    Reactive Power Control Method for an Integrated Wind and Solar Power System

    公开(公告)号:US20210344198A1

    公开(公告)日:2021-11-04

    申请号:US17274281

    申请日:2019-09-05

    Abstract: A method of operating a power generation system (100) employing a generator (110) and a solar power source (120) is provided. The method includes the steps of determining (310) if a wind speed is less than a cut-in speed, calculating (315) a reactive power demand for an electrical grid (102), calculating (320) a reactive power capability of a line side converter (140), determining (325) if the reactive power demand is greater than the reactive power capability, and calculating (330) a reactive power capability of the line side converter (140) and a rotor side converter (130). The method also includes the steps of determining (335) if the reactive power demand is greater than the reactive power capability of the line side converter (140) and the rotor side converter (130), and reducing solar power generation or reconfiguring the line side converter (140) and/or the rotor side converter (130) to meet reactive power demand.

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