PL412183A1 - Method of control and control system of the three-phase, three-branch voltage inverter - Google Patents

Method of control and control system of the three-phase, three-branch voltage inverter

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Publication number
PL412183A1
PL412183A1 PL412183A PL41218315A PL412183A1 PL 412183 A1 PL412183 A1 PL 412183A1 PL 412183 A PL412183 A PL 412183A PL 41218315 A PL41218315 A PL 41218315A PL 412183 A1 PL412183 A1 PL 412183A1
Authority
PL
Poland
Prior art keywords
phase
inverter
umc
uma
umb
Prior art date
Application number
PL412183A
Other languages
Polish (pl)
Other versions
PL227997B1 (en
Inventor
Tomasz Binkowski
Original Assignee
Politechnika Rzeszowska im. Ignacego Łukasiewicza
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Rzeszowska im. Ignacego Łukasiewicza filed Critical Politechnika Rzeszowska im. Ignacego Łukasiewicza
Priority to PL412183A priority Critical patent/PL227997B1/en
Publication of PL412183A1 publication Critical patent/PL412183A1/en
Publication of PL227997B1 publication Critical patent/PL227997B1/en

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  • Inverter Devices (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

Sposób sterowania dotyczy falownika (F) zasilanego ze źródła napięcia stałego (ZNS), który jest w postaci przekształtnika energoelektronicznego, zawierającego trzy gałęzie półprzewodnikowych łączników mocy, kształtujących trzy wyjściowe napięcia fazowe, zasilające trójfazowe obciążenie (OBC) o charakterze prądowym i powodujące przepływ przez nie wyjściowych prądów fazowych (ia, ib i ic). Sterowanie falownikiem (F) odbywa się w poprzez układ sterujący (UST), zawierający trójfazowy modulator (MOD), porównujący przebieg nośny z pierwszego generatora (GFN) z trójfazowymi napięciami modulującymi (uma, umb, umc) z drugiego generatora (GPM) i generujący trzy sygnały sterujące (Sa, Sb i Sc) pracą łączników mocy w trzech gałęziach falownika (F). W tym sposobie koryguje się w czasie rzeczywistym amplitudę trzech napięć modulujących (uma, umb, umc) dla trzech faz (a, b, c) obciążenia (OBC) falownika (F), przy czym modulujące napięcia skorygowane (u*ma, u*mb, u*mc) dla zadanej trajektorii wektora przestrzennego wyjściowych prądów fazowych (ia, ib, ic) falownika (F) uzyskuje się poprzez jednoczesne mnożenia chwilowych wartości napięć modulujących (uma, umb, umc) przez dynamiczny współczynnik korekcyjny (k), który wyznacza się z pomiaru wartości chwilowych co najmniej dwóch prądów fazowych (ia, ib lub ic) falownika. Wynalazek dotyczy także układu sterującego (UST) do stosowania sposobu według wynalazku. Wynalazek znajduje zastosowanie zwłaszcza do zasilania trójfazowych napędów elektrycznych.The control method applies to the inverter (F) supplied from a direct voltage source (ZNS), which is in the form of an electronic power converter, containing three branches of semiconductor power connectors shaping three output phase voltages, supplying three-phase load (OBC) of current nature and causing flow through them output phase currents (ia, ib and ic). The inverter (F) is controlled by a control system (UST) containing a three-phase modulator (MOD), comparing the carrier waveform from the first generator (GFN) with the three-phase modulating voltage (uma, umb, umc) from the second generator (GPM) and generating three control signals (Sa, Sb and Sc) of power switches in three branches of the inverter (F). In this method, the amplitude of the three modulating voltages (uma, umb, umc) is corrected in real time for the three phases (a, b, c) load (OBC) of the inverter (F), while the corrected modulating voltages (u * ma, u * mb, u * mc) for the given spatial vector trajectory of the phase output currents (ia, ib, and c) of the inverter (F) are obtained by simultaneous multiplication of the instantaneous values of modulating voltages (uma, umb, umc) by a dynamic correction factor (k), which determined by measuring the instantaneous values of at least two phase currents (ia, ib or ic) of the inverter. The invention also relates to a control system (UST) for applying the method according to the invention. The invention finds particular application in the supply of three-phase electric drives.

PL412183A 2015-04-30 2015-04-30 Method of control and control system of the three-phase, three-branch voltage inverter PL227997B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL412183A PL227997B1 (en) 2015-04-30 2015-04-30 Method of control and control system of the three-phase, three-branch voltage inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL412183A PL227997B1 (en) 2015-04-30 2015-04-30 Method of control and control system of the three-phase, three-branch voltage inverter

Publications (2)

Publication Number Publication Date
PL412183A1 true PL412183A1 (en) 2016-11-07
PL227997B1 PL227997B1 (en) 2018-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL412183A PL227997B1 (en) 2015-04-30 2015-04-30 Method of control and control system of the three-phase, three-branch voltage inverter

Country Status (1)

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PL (1) PL227997B1 (en)

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Publication number Publication date
PL227997B1 (en) 2018-02-28

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