Methods and systems for multi-phase AC generation using inverter
AssigneeInstagrid GmbH
InventorsPhilipp Gutknecht, Julian Dessecker
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Abstract
The present teachings relate to methods of operating an electrical inverter operable to deliver AC electrical power as a second AC power signal, the method including measure a first AC power signal; generating a first tuned signal dependent upon the first AC power signal; determining, using the first tuned signal, a first phase value indicative of phase of the first AC power signal; generating the second AC power signal shifted by a pre-determined first phase-difference value from the first phase value. The present teachings also disclose related products, systems, and software.
Claims20
A method of operating an electrical inverter in a discharge mode in which the electrical inverter is operable to deliver AC electrical power as a second AC power signal, which AC electrical power is derived from energy stored in an electrical energy storage, wherein the electrical inverter comprises the electrical energy storage and an input port for receiving electrical power for charging the electrical energy storage, the method comprising:
- measuring, via the input port, a first AC power signal received at the input port;
- generating, via a first oscillator, a first tuned signal dependent upon the first AC power signal;
- determining, using the first tuned signal, a first phase value, wherein the first phase value is indicative of phase of the first AC power signal;
- and
- generating the second AC power signal which is shifted by a pre-determined first phase-difference value from the first phase value.
An electrical inverter operable in a discharge mode and a charge mode, the electrical inverter comprising:
- an input port operable to receive a first AC power signal;
- an electrical energy storage;
- and
- an output port,
- wherein, in the discharge mode, the electrical inverter is operable to:
- measure the first AC power signal received at the input port;
- generate, via a first oscillator, a first tuned signal dependent upon the first AC power signal;
- determine a first phase value, wherein the first phase value is indicative of phase of the first AC power signal;
- generate a second AC power signal which is shifted by a pre-determined first phase-difference value from the first phase value;
- and
- deliver AC electrical power as the second AC power signal, wherein the AC electrical power is sourced from the electrical energy storage, and
- wherein, in the charge mode, the input port is operable to receive electrical power for charging the electrical energy storage.
A non-transitory computer-readable storage medium comprising programming instructions stored thereon, wherein, when executed by a processor, the programming instructions cause an electrical inverter to operate in a discharge mode in which the electrical inverter is operable to deliver AC electrical power as a second AC power signal which AC electrical power is derived from energy stored in an electrical energy storage of the electrical inverter, and in a charge mode wherein the electrical inverter receives electrical power for charging the electrical energy storage, wherein, in the discharge mode, the programming instructions cause the electrical inverter to perform the steps of:
- measuring a first AC power signal received at an input port of the electrical inverter;
- generating, via a first oscillator, a first tuned signal dependent upon the first AC power signal;
- determining, using the first tuned signal, a first phase value, wherein the first phase value is indicative of phase of the first AC power signal;
- and
- generating the second AC power signal which is shifted by a pre-determined first phase-difference value from the first phase value.
Dependencies are inferred from the claim text.