Negative sequence cooperative compensation control method for photovoltaic and electrified railway
The invention discloses a photovoltaic and electrified railway negative sequence cooperative compensation control method, which specifically comprises the following steps of: acquiring electrical quantities of a common connection point, a photovoltaic station grid-connected inverse point and a tract...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a photovoltaic and electrified railway negative sequence cooperative compensation control method, which specifically comprises the following steps of: acquiring electrical quantities of a common connection point, a photovoltaic station grid-connected inverse point and a traction substation grid-connected point, and calculating a voltage unbalance degree through sequence component decomposition; establishing a negative sequence component analysis model of weak power grid-traction substation-photovoltaic station; based on a grid-connected guide rule of the photovoltaic station, the negative-sequence current emission capability of the photovoltaic station is calculated by taking a safe operation boundary of the photovoltaic station as a constraint; and by taking the national standard limit value at the common connection point as a constraint, calculating a negative sequence compensation quantity reference current instruction of the traction substation and the photovoltaic station branch a |
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