SUMMARY:

Seeking a technical management or service engineer position in electric vehicle charging stations installation, deployment, procurement or any related area, or in any electrical engineering work or other science and technological area.

WORK EXPERIENCE:

Confidential, Ann Arbor, Michigan

Electrical Engineer

Responsibilities:

• Design deployment plan for EV Charging Stations.
• With internal utility GIS data and Google Map, from customer requirements, design the best layout plan for either Level 2 or 3 or both charging stations.
• Works includes calculating the power level requirements, sizing the correct transformer, finding the best electric cable routes, installing the correct distribution panel and the appropriate wiring sizes and conduits. Reviewing and approving the final deliverables of AUTO CAD design plan to present to customers.
• Working on the assignment for city street electrical distribution network and pole replacements. From GIS data, locate the electric poles to be replaced.
• Using correct stepdown transformer, make up complete job plan and material list for an electrical pole replacement.

Confidential

Electrical Engineer/Product Manager/Project Manager

Responsibilities:

• Design and Development of Electric Vehicle charging stations in DC CCS1, CCS2 and CHAdeMO and AC Type 1, Type 2 EV chargers.
• Management of the product development process, CE certification process, EMC tests, design multi - language supporting charging station User Interface and perform real vehicle charging tests jointly.
• A proprietary signal conversion board was used to convert ISO15118, DIN 70121 and CHAdeMO signal to conventional CAN 2.0B signals.
• The CAN signal was used in turn to control power electronics charging modules to realize DC charging for CCS1, 2 and CHAdeMO EV vehicles. In the trip to our customer’s site, jointly working China Team remotely, helping customer to fine tuning EV chargers installed in Germany and Turkey.
• Successfully testing charging various types of Electric Vehicles such as Porsche Taycan, Volvo Polestar 2, Renault Zoe, BMW i3, mini Cooper Electric, Honda e, VW ID 3, Tesla Model 3 (CCS2), Audio E-tron, Hyundai Kona and Ioniq electric etc to charge on our EV chargers.
• Finding the problems, catching the computer communication messages sent between vehicle and charger, relaying ISO 15118 messages back to development team in China for diagnosis and programming improvement.
• After receiving improved firmware from China, with firm flashing tool to burn the firmware on to the chargers to solve the charging problems.
• Based OCPP1.6, design and testing work flow of online controlled charging with OCPP backend.
• Using NAYAX credit card processing unit, develop a credit card payment option on DC chargers.
• Working on Level 2 charger user interface design.
• Redesign and supervising development of Level 2 AC EV chargers, preparing it to get certification of UL. In the design process, using portable Infrared thermal camera to catching the heat distribution mapping for better design.
• Making overall design improvement and supervising development UI for DC stationary EV chargers. Adding payment options of credit card payment and networked solution of OCPP 1.6 to DC EV chargers. Organizing 60kW EV DC chargers to get CE certification.
• Working with Greenlots and Electrify America to deploy eight Level 2 AC chargers.
• Working with owner of the hotel, design and planning to develop two more 50kW dual port (CCS and CHAdeMO) DC charger.
• Duties including design, plan and procure the 800A main distribution panel off the 750kVA/480V transformer. Step down transformer of 75kVA to get three phase 208V and breakers for Level 2/208V/30A AC chargers.
• Leave room for future expansion of three phase/480V for DC Fast chargers.
• Lead two groups of engineers to develop PLC communication based CCS 1 and CCS 2 EV DC Fast Charging Stations targeting North America and European market.
• Current, the products are undergoing verification and certification process.
• Also to develop Level 2 AC charging stations of Type 1 (J 1772) and Type 2 and GBT connectors.
• Working with e-Trofit Smarting charging team, validate and verify the in-house developed PLC to CAN conversion modules on AoNeng DC chargers.

Confidential, Santa Ana, CA

Responsibilities:

• Duty including finding the appropriate step-down transformer from three phase 480V to 380V for GB/T charger.
• Translation of all the documents from Chinese into English. Test and validate the working condition of charger.
• Re-design the user interface for efficient operation and translate/redesign User Interface from Chinese to English.
• Translate all the error codes into English.
• Use thermal camera to monitor the temperature of connector at various power level.
• Use CAN analyzer tool to catch CAN communication protocol across the charger and bus for manufacturer validation.
• Make sure the charger works as design for the bus.
• The project successfully works for GreenPower Bus’s double deck electric bus.

Confidential

Electrical Engineer/Project Manager

Responsibilities:

• Carefully studied the bidding requirements for Enhanced Frequency Response of NGET. Filed the tender invitation to NGET for 1MW/2MWh with LiFePO4 700 Ah batteries and 2x500KTL Sinexcel PCS systems.
• Building a household battery energy storage system of 10 kWh.
• Sourcing the batteries and module, BMS supplier, built the prototype system and perform testing with PCS (hybrid inverter) system from supplier.
• Sourced materials and built a Li-ion Battery Test and Evaluation System.
• Under this system, Li-ion battery (3.2VDC 200-700Ah) impedance will be measured to form better pairing. In EV bus, Li-ion batteries (LiFePO4) are connected in parallel and 204 pairs are in series to form energy power source for the bus. The charging/discharging curve was plot at various temperature setting.
• These curves were referenced for improving in-house EV bus BMS algorithm design.
• Revisit the design of a battery energy storage system of 1 MWh system. Re-evaluate the feasibility of system in factory daily operation.
• Specify the technical requirements for all-in-one DC 60kW to 120kW charging station for both 380VAC three phase of 50 Hz and 480VAC three phase of 60 Hz power grid. Locate suppliers to build the system and perform onsite testing with FDG electric bus. Explore the process to be certified by UL.

Confidential

Electrical Engineer/Project Manager

Responsibilities:

• Built a portable Electric Vehicle (EV) charging system for all Electric Bus with GBT connector.
• Based on the characteristics of 3.5 kW modules from Confidential Increase, 12 modules were connected in parallel to form a 42kW EV portable charger.
• Duty includes, working out communication details between vehicle BMS and charger via CAN 2.0B communication protocol, conducting testing on individual module and helping build the prototype system, design and perform final system testing with resistive load and vehicle battery system.
• Each module takes a single phase 220 VAC, 50 Hz input and output 500-750 VDC. Every 4 modules were connected together to one of the three phase of industrial 380 VAC, 50 Hz input without phase sequence requirement.
• When the system was initially connected, it performs electrical isolation test and sending signal to close the connection relay.
• As the relay closed the DC current path, it starts the charging process.
• The charging DC voltage increased to 685 VDC and current of 52 A.
• The current comes down at later charging stage of 42 A.
• The actual charging voltage and current was provided according to instruction from vehicle BMS system via CAN 2.0B protocol.
• This system is currently undergoing more real life charging test with the vehicle, mass production follows after testing.

Confidential, Grand Coulee, WA

Contract Electrical Engineer

Responsibilities:

• Completed various installation projects of grid-tied and off-grid solar PV modules.
• Design and built a 10 kW residential solar PV electric systems with grid-tied central inverters and micro-inverters.
• Fluently operate various electrical/electronic instrumentation.

Confidential, Portland, Oregon

Senior Contract Software Engineer

Responsibilities:

• Based an earlier version of RIA, using Confidential Visual Studio 2012, C#, Telerik Web controls, WCF, MS Entity Framework, MS SQL 2008 database as backend, to debug, improve, enhance functionalities of RIA to make it work for distributing Wind farms and Hydro Efficiency Confidential ’s.
• Duties including, fixing existing bugs of the app, gathering end user’s feedbacks, writing function and software specs, implement and develop software user interfaces and algorithms to realize those functionalities; develop new SQL scripts for retrieving, creating, updating database records; design database reports for presenting Confidential distribution of various wind farms and hydro efficiency improvements.
• The major contribution to RIA project is to implement and develop the feature of creating, editing, and deletion of Hydro Efficiency Projects into RIA system, develop C# codes to distribute Confidential ’s in a random and fair way to all BPA customers.
• I started from concept inception, to write functional and software specs, making mock-up screen for users to get user’s acceptance and coding in both C# and SQL scripts for the whole feature.
• Carrying through the entire process of building, testing and releasing to customers for 2014 annual BPA Confidential reporting.

Confidential, Pullman, WA

Electrical Engineer/Project Manager

Responsibilities:

• Research projects involving simulation of AC power system dynamics with TSAT, PSAT and SSAT of Powertech Labs. Power Electronics Simulation with PSCAD of Manitoba Research Center. Fluent use of Matlab software to develop AC power system analysis programs with Newton-Raphson and Fast Decouple numerical methods.
• Power system fault and analysis with ASPEN Power System Study tools.
• Perform Power Flow and N-1 Contingency studies with PSAT (Power System Analysis Toolbox), commercial software PowerWorld simulation package, Siemens PSSE and inhouse-developed Matlab packages.
• Develop offline tool to detect and extract modal oscillatory information in power systems using Synchrophasor (PMU) data.
• Develop a Configuration Wizard to install and configure the in-house real time Oscillation Monitor display application for field deployment with C#.
• 20+ years of software programming experience in development of commercial software products.
• Recent career focus was mainly on Web / Win Applications by ASP.NET, C#, MS SQL and Oracle DB.
• Works involved Graphical User Interface design, betterment for User experience.
• Proficient with various computer languages and operating systems including: AngularJS, HTML 5, Visual Studio Team Suite System, C# and .NET Framework, ASP/ASP.NET, MVC, ADO.NET, SOAP, RESTful Web services, XML, XSLT, XPATH, XSD, SQL, MS T-SQL, WCF, LINQ, Oracle PL/SQL, C/C++, VB and JQuery, JavaScript, CSS, XML/XSLT transform, Ajax enhanced tool set such as MS ASP.NET Ajax and Telerik RadControls for ASP.NET Ajax, Web Services, TCP/IP communication and COM technology, Windows SDK; familiar with Object Oriented design methodologies, UML and design patterns, and OS UNIX (HP, SUN), MS DOS, MS Windows, IIS Server and Win CE. Familiar with Agile Scrum software development process. Exposure to Matlab Machine Learning algorithms development.

Confidential, Conroe, Texas

Electrical Engineer/Project Manager

Responsibilities:

• Working on Oil Well Drilling Performance Web application, implemented circular search in Confidential Bing map range search.
• Implemented database scripts to correct data errors in database.
• All work was done MS SQL server and C#.
• Working on ASG Open Source Software Accountability System. Extracting data sources of OSS request, iTPS impounding and Headtrax to form a de-normalized repository.
• From it, all information was uploaded into Elastic Search on daily basis via Sangam server so user can search ASGOSS from different various prospects.
• In the development of this system, SQL Server 2012 was used as data storage. SQL scripts were developed to create tables, store procedures for retrieving, inserting and updating database records.
• An ASP.NET/C# web app were developed for user to search all non-compliant components based on request ID, component name or requester’s email address.
• User can also modify the status of each non-compliant component to compliant with additional information and actions.
• Two separate background processes were also developed in C# to retrieve information from OSS requests and iTPS to feed central repository.
• Workings on Confidential Office 365 build system.
• Converting traditional NMAKE system to MSBUILD system in order to move to Cloud build.
• Debugging and enhancing current Project Converter with C# and Confidential Visual Studio 2013.

Confidential, Redmond, WA

Electrical Engineer/Project Manager

Responsibilities:

• Develop MS Power Shell script programs to implement new configuration requirements, automatic deployment of Knowledge Bases, and managing user account profiles on server farms for Confidential Office 365 product team.
• Developing Automation Test suite for Philips Healthcare Q-Lab system.
• Project White and C# language was used in this development.
• Using Xml based Work Flow and State machine files, the testing operation was presented to the test engine.
• After loading State machine, the test engine will call each appropriate operation via .NET reflection.
• At the end, the entire testing operation will be performed and logged according to Work flow file.
• Working on Confidential Ship Manager Integration.
• Experiments on various options of Confidential shipping data automatic integration with LabelMaster web app, from Confidential Web services to Ship Manager automatic data exporting.
• Parsing exported data, developing and utilizing LabelMaster web services functions to implement data importing.
• Using Windows Service to create background service to automate the data integration.
• Creating Windows installation kit to let user automatically download the software to install the integration machine to their target machine.
• Implement a set of middle tier library for Labelmaster to integrate directly with Confidential Web services. All of the work was implemented in C# and ASP.NET.

Confidential, Bellevue, WA

Senior Software Development Engineer

Responsibilities:

• Using Visual Studio 2008 Team Suite, C#, ASP.NET, T SQL of MS SQL 2005 as backend.
• The site is composed of two major parts, store front and backend store administration. From store front, buyer can browse shoes, adding it to shop cart, check out from shopping cart via various method, eg. credit card, receiving a confirmation email after successfully placed orders. From backend administration, store admin can process the order and sending email notification for shipping notification. The entire code architecture is based on presentation layer, business logic layer, data accessing layer etc.
• Duties including: Design and developing customer Shopping Cart, product presentation and search, URL rewrite, administration dashboard, role-based customer management, content management, orders management, etc.