Modular Power Conversion System

Patent metadata

Field	Value
Publication number	US-2020280193-A1
Application number	US-202016876117-A
Country	US
Kind code	A1
Filing date	May 18, 2020
Priority date	Apr 15, 2011
Publication date	Sep 3, 2020
Grant date	—

Abstract

A modular power conversion system and power electronics enabling any power production device or entity to connect to any load or electrical grid including, but not limited to, electricity conversion between low level producer(s) such as a diesel or gas generator, Stirling engine, wind turbine or photovoltaic array, to a consumer such as a commercial or residential building, either directly or via the grid, is disclosed. The modular power conversion system including hardware and software power electronics designed as a modular power stage aggregating different power production entities, transmission systems, consumption and loads as well as energy storage is also disclosed.

First claim

What is claimed is:

1 . A method for converting power modularly comprising:
generating, by at least one first electric resource, electricity using a permanent magnetic synchronous motor; controlling the permanent magnetic synchronous motor by
(a) producing three-phase AC power signals at a predetermined voltage and frequency using an analog/digital converter comprising half bridges across a DC bus and an inductor-capacitor-inductor filter;
(b) converting the three-phase AC power signals to a two-phase orthogonal reference frame using at least one voltage sensor and at least one current sensor for three-phase demodulation of the three phase signals; and
(c) receiving speed sensor signals from the permanent magnetic synchronous motor and compiling a position and velocity estimation of the permanent magnetic synchronous motor using a position/velocity estimator; and
converting, by a power electronics system, power between the at least one first electric resource and an at least one second electric resource.

2 . The method of claim 1 wherein the power electronics system further comprising a brake module for the permanent magnetic synchronous motor.

3 . The method of claim 1 wherein the at least one second electric resource comprises a wind turbine.

4 . The method of claim 1 wherein the at least one second electric resource comprises a photovoltaic array.

5 . The method of claim 1 wherein the at least one second electric resource comprises a Stirling generator.

6 . The method of claim 1 wherein the at least one second electric resource comprises an electrical consumer.

7 . The method of claim 6 wherein the electrical consumer comprises a building.

8 . The method of claim 1 wherein the at least one second electric resource comprises battery energy storage.

9 . The method of claim 1 further comprising:
facilitating conversion of the electricity between the at least one first and the at least one second electric resources; and
allocating the electricity based on cost.

10 . The method of claim 1 further comprising:
conditioning the electricity for power transmission.

11 . The method of claim 1 further comprising:
communicatively connecting a remote control.

12 . The method of claim 1 further comprising:
connecting, by a three phase inverter module, to a three phase grid.

13 . The method of claim 12 wherein the three phase inverter module comprises three half bridges connected to a high and low side of the DC bus.

14 . A method for converting power modularly comprising:
converting, by an analog/digital converter, analog sensor signals from a permanent magnetic synchronous motor to digital signals for use by a digital signal processor comprising half bridges across a DC bus and an inductor-capacitor-inductor filter that produce three-phase AC power signals at a predetermined voltage and frequency; three-phase demodulating, by at least one voltage sensor and at least one current sensor, the three phase AC power signals; converting the three-phase AC power signals to a two-phase orthogonal reference frame; receiving, by a position/velocity estimator, speed sensor signals from the permanent magnetic synchronous motor; and compiling, by the position/velocity estimator, a position and velocity estimation of the permanent magnetic synchronous motor.

Assignees

• Deka Products Lp

Inventors

• Sachs Jason M
• Lucas Donald J

Classifications

• H02J2101/28

  Wind energy · CPC title

• H02J2101/24

  Photovoltaics · CPC title

• H02J2101/20

  Dispersed power generation using renewable energy sources · CPC title

• H02J2101/10

  Dispersed power generation using fossil fuels, e.g. diesel generators · CPC title

• H02J3/46 Primary

  Controlling the sharing of generated power between the generators, sources or networks · CPC title