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Kuchak S.V.,NSTU | Voroshilov A.N.,Native Batteries
International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM | Year: 2016

The paper deals with time diagrams of voltage and current of lithium-ion accumulators with LiFePO, cathode material, obtained by the different charge modes. The limits to determine the element state of charge by voltage value are marked out on the basis of the obtained results. © 2016 IEEE.


Armeev D.V.,Skoltech Center for Energy Systems | Chekhonadskikh A.V.,NSTU | Voevoda A.A.,NSTU
2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings | Year: 2015

Traditional power systems consist of few centralized power plants, passive grid and uncontrollable passive loads. It is expected that deep penetration of modern trends like distributed generation, SmartGrids and microgrids will lead to a plenty highly automated power units. Each of them should be equipped with effective controllers. Like many years before PID controllers remain relevant and popular despite many others technologies, because they are based on well proven, reliable and clear practice. But PID controllers should be well tuned in order to keep stability of the unit and the entire grid. Existing methods usually assume that the control parameters are chosen at first, then the controlled unit is tested on applicability and stability. Classical methods (D-decomposition et al.) are quite effective for only one or two tunable parameters. © 2015 IEEE.


Vladimiriovich M.A.,NSTU | Alexandrovich V.A.,NSTU | Olegovich R.D.,NSTU
2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings | Year: 2015

Provides a method for automatic translation UML diagrams to Petri nets, which is to convert formats like structure.xmi and.cpn. We consider the transformation of the most frequently used items on activity diagram - state action, condition, fork and join based on rules transformation. These elements are shown in activity diagram and its corresponding Petri net. It is noted that in active diagram presence four types elements - state action, a pseudostate, final state and transition, in Petri nets involved three types elements - place, transition and arc. Discussed in detail the comparison of initial state, state action and final state of activity diagram and places Petri nets - element name and its properties. © 2015 IEEE.


Galina T.,NSTU | Alexander V.,NSTU
2015 International Siberian Conference on Control and Communications, SIBCON 2015 - Proceedings | Year: 2015

The construction technique of the Fischer information matrix for parameters estimation of the control system of the inverted pendulum is offered. The state-space model is considered when unknown parameters are in a state matrix. Transform from continuous model to discrete analog is executed. It is noted that the steady-state considerably simplifies a calculation technique of Fischer information matrix that is very useful to practical application. © 2015 IEEE.


Novitskiy S.P.,NSTU | Pechnikov A.L.,KB Automatika
2014 12th International Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2014 - Proceedings | Year: 2014

A corrected method of numerical determination of amplitude- and phase-frequency characteristics of electrochemical systems gotten by discrete electrical signals of impact and response and using Fourier transform is considered. It is proposed to restore first a continuous form of discrete signals using Lagrange polynomial spline before applying Fourier transform. © 2014 IEEE.


Kasianenko P.V.,NSTU
2012 11th International Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2012 - Proceedings | Year: 2012

Electric power supply system (up to 3-4 GW in pulse) for electromagnetic mass accelerator is considered. Unique switch units for high current (up to 1.2 MA for voltage of up to 5 kV) are described. Paper describes various designs of mass accelerators and their power supply. Considered power supply source circuit variants include: unipolar DC current generator, and multiphase synchronous generator with controlled rectifier. © 2012 IEEE.


Babichev M.M.,NSTU | Pasynkov Yu.A.,NSTU
2012 11th International Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2012 - Proceedings | Year: 2012

Various ways of formation of signals with pulse-width modulation (PWM) are considered. The analysis of an error of the first harmonica and factor of nonlinear distortions of a PWM signal depending on its parameters and from the chosen way of formation is provided © 2012 IEEE.


Skolota V.A.,Novosibirsk Factory Semiconductors Devices with Special Design Center | Belova I.A.,Novosibirsk Factory Semiconductors Devices with Special Design Center | Martinovich M.V.,NSTU
International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM | Year: 2016

Variants of the frequency synthesizer capable multiply and divide the input frequency were analyzed. To multiply the frequency of synthesizer a phase locked loop (PLL) was used. Variants of voltage controlled oscillator (VCO) for the PLL, and low-pass filter (LPF) were considered, justifying the choice of used schemes. Synchronization block was added to developed synthesizer for redundancy possibility. Developed synthesizer circuit was simulated at different temperatures and voltages. Simulations have shown that the PLL loop working in the multiplication mode converges to a required frequency and covers the predetermined frequency under all specified operating conditions. In frequency division mode the synchronization also runs successfully. © 2016 IEEE.


News Article | February 15, 2017
Site: www.marketwired.com

HALIFAX, NOVA SCOTIA--(Marketwired - Feb. 15, 2017) - "CUPE strongly opposes the McNeil Government's move to impose a contract on the members of the Nova Scotia Teachers Union (NSTU)," says Nan McFadgen, president of CUPE Nova Scotia. "We feel this piece of anti-worker legislation is undemocratic and will only serve to hurt all public service workers in Nova Scotia, who have the constitutional right to negotiate and vote on their collective agreement." On February 11, Premier Stephen McNeil announced he would impose a contract on the Nova Scotia Teachers Union (NSTU) and began imposing the agreement on teachers the evening of Tuesday, February 13, 2017. Debate on the legislation, entitled the Teachers' Professional Agreement and Classroom Improvement Act (Bill 75), is taking place this week and will likely be voted on next week. "CUPE members are frustrated by the Premier's refusal to recognize the value of the jobs education workers do including CUPE members who are educational assistants, school secretaries, custodians, bus drivers, early childhood educators and much more." says Grant Dart, CUPE school board coordinator. "How can the Minister of Education say, with a straight face, that she hopes NSTU members feel they have their fingerprints on this contract? How can any union have faith in this government, when we go through good faith negotiations, only to have a contract imposed on them," says McFadgen. "Collective bargaining works. When both sides agree to meet in good faith and with respect for the process, it works for everyone," says McFadgen. "It safeguards workers' rights and stabilizes the public services that we all depend on. It also sets new workplace standards such as pay equity and health and safety." "Introducing Bill 148, and now Bill 75, was a huge mistake, and imposing a contract on teachers will create chaos in the education system," says McFadgen. "It's unfortunate that we live in a province where education workers are also forced to fight to improve the quality of education our children receive. We applaud NSTU members for their courage and determination." "We will not back down. The livelihoods and security of 75,000 public service workers, their families and their communities depend on reaching fairly negotiated contracts," states McFadgen. "Underfunding classrooms and attacking workers' rights are issues we believe will be reflected in voting polls in the next provincial election."


News Article | October 28, 2016
Site: www.marketwired.com

HALIFAX, NOVA SCOTIA--(Marketwired - Oct. 27, 2016) - CUPE sends a message of solidarity and support to teachers across Nova Scotia today, in their efforts to gain a fair collective agreement with the McNeil government. "On behalf of the 19,000 members of CUPE Nova Scotia, including 4,000 school board support staff, I want to express our full support for the membership of the Nova Scotia Teachers Union," says CUPE Nova Scotia President Nan McFadgen. "Premier McNeil is creating havoc in the public service and he clearly does not understand the difficulties faced by workers. He doesn't see the financial pressures and emotional strain placed on workers and their families when they are not able to negotiate their own wages, benefits and working conditions," says McFadgen. "Teachers deserve recognition for their hard work over the years to help improve the education system in Nova Scotia. It is time for the Province to meet with teachers to have a round of bargaining in which they are able to bargain their wages, and to work in an environment where their expertise is taken into consideration when decisions are made for the betterment of students and schools." "Rather than impose contract terms, he should allow the collective bargaining process to function as it was intended," states McFadgen. "Teachers have sent a clear message, rejecting McNeil's strong-arm approach and CUPE fully supports NSTU members in their struggle, and all public employees, until such a time as the Liberal government shows the workforce the respect it deserves."

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