Electromagnetic Interference Issues in Power Electronics and Power Systems

Motor Cable Influence on the Conducted EMI Emission of the Converter Fed AC Motor Drive

Author(s): Jaroslaw Luszcz

Pp: 77-95 (19)

DOI: 10.2174/978160805240011101010077

* (Excluding Mailing and Handling)

Abstract

Investigation of conducted electromagnetic interference in AC motor drives fed by pulse width modulated voltage converters requires considering parasitic capacitances in converters, motor windings and feeding cables to be taken into account. Motor voltage transients and related conducted electromagnetic emission are significantly correlated with resonance effects occurring in load circuits. The levels of intensity of these phenomena depend mostly on frequency dependant impedance - frequency characteristics of motor windings with an accompanying feeding cable. An analysis of frequency converter load impedance characteristics allows for identification and determination of representative frequency ranges in which the foremost contributions to EMI noise generation have voltage ringing phenomena associated with the load parasitic capacitances. This chapter presents a method to model an AC motor with a feeding cable. AC motor windings have distributed parasitic capacitances and a particular focus on the influence of the feeding cable's parameters is modeled as a ladder circuit model. The proposed circuit model allows for an analysis of the influence of the cable parameters on conducted EMI emission generated by an AC motor drive system. The simulation results based on the proposed ladder circuit model are verified by the experimental tests which were carried out for an exemplary adjustable speed AC motor drive application with different lengths of feeding cables.


Keywords: Bearing current, Broadband model, Cable shield, Common mode impedance, Common mode transfer impedance, Common mode voltage, Dielectric permeability, Differential mode current, Distributed model, EMI propagation, Grid impedance, Impedance mismatch, Line impedance stabilization network, Ladder circuit model, Load impedance, Lossy transmission line model, Lumped model, Modulation carrier frequency, Motor feeding cable, Motor windings, Power grid impedance, Propagation velocity, Reflection coefficient, Reflection effects, Resonance effects, Resonance frequencies, Self impedance, Shaft voltage, Shielded cable, Smith chart, Standing waves, Wideband modelling, Transmission line effects, Transition frequency, Transmission line

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      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59771045 and j.to_ip >=59771045 )) and ((j.from_date <= 1739847213 and j.to_date >= 1739847213 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 730) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59771045 and j.to_ip >=59771045 )) and ((j.from_date <= 1739847213 and j.to_date >= 1739847213 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 730) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 59771045 and j.to_ip >=59771045 )) and ((j.from_date <= 1739847213 and j.to_date >= 1739847213 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 730)
      500μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 844 and `b`.`banner_from_date` <= 1739847213 and `b`.`banner_to_date` >= 1739847213 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.01msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 844
      • 3: 1739847213
      • 4: 1739847213
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='b165ca3f359d832ece0acb5608090024'
      190μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Keywords
    35Keywords.php#?
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        P0eeYd7T3BXszCkOkt97cMWqeZ1spAAe7sujzDP5
        uc_cart_id
        b165ca3f359d832ece0acb5608090024
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/ebook_volume/3780/related-ebooks" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/730
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
        0 of 0
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        request_cookies
        0 of 0
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        response_headers
        0 of 0
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        session_attributes
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        ClearShow all
        Date ↕MethodURLData
        #12025-02-18 02:53:33GET/chapter/7301121937